Permanent magnet type journal sticking generator shaft system centering device capable of demagnetizing force

Abstract

The invention discloses a permanent magnet type journal sticking generator shafting centering device capable of demagnetizing force, which comprises two side journal sticking pieces arranged on a generator, the two side journal sticking pieces comprise a journal sticking support piece and two side clamping journal sticking pieces, the journal sticking support piece is arranged on the generator, and the two side clamping journal sticking pieces are arranged on the generator. The two-side clamping journal sticking pieces slide on the journal sticking supporting piece to stick a journal towards a rotor of the generator. The two-side clamping journal sticking piece is arranged on the base, the journal sticking circumferential adjusting pieces are arranged on the two-side clamping journal sticking piece and comprise the left side journal sticking circumferential adjusting piece and the right side journal sticking circumferential adjusting piece, and the left side journal sticking circumferential adjusting piece and the right side journal sticking circumferential adjusting piece move on the two-side clamping journal sticking piece in a follow-up mode. Therefore, the rotor can be clamped and locked in a shaft-sticking manner. The device is high in automation degree, the rotor journal sticking locking and clamping are stable, the generator installation efficiency can be remarkably improved, the workload in the generator installation process is remarkably reduced, the installation period is remarkably shortened, and the labor intensity is remarkably reduced.

Description

Technical Field

[0001] This invention relates to the field of marine equipment technology, and more specifically, to a shaft alignment device for a permanent magnet type shaft-mounted generator with demagnetizing force. Background Technology

[0002] The permanent magnet shaft-mounted generator directly utilizes the rotational power of the main engine (diesel engine, which primarily powers the propeller) shaft to generate electricity through a shaft system connected to the ship's main engine. Compared to traditional marine propulsion systems, the addition of a permanent magnet shaft-mounted generator to the main engine and propeller allows the generator to store excess power from the main engine, maintaining the main engine at high efficiency, improving the ship's energy utilization efficiency, achieving fuel savings, reducing operating costs, and improving CII (Common Indicators and Standards) indicators. Furthermore, when quiet operation is required or high-power propulsion is not needed, such as in import / export ports, the energy storage-driven generator can act as an electric motor, propelling the ship smoothly. This not only meets the requirements of special navigation environments but also fully utilizes the main engine's excess power, achieving high-efficiency output and reducing overall ship energy consumption.

[0003] However, when connecting a permanent magnet shaft-driven generator to a diesel engine and a stern shaft (which drives the propeller), shaft alignment is required. Since the permanent magnet shaft-driven generator is a permanent magnet generator, electromagnetic internal forces exist between the rotor and stator during the shaft alignment process. The alignment process is affected by the magnetic force of the generator and stator throughout. Based on the fact that the alignment calculations for permanent magnet shaft-driven generators at home and abroad are based on constant magnetic force calculations, a lot of manpower is required during the alignment process, especially during the shaft lifting load process, to repeatedly fine-tune the generator to obtain a stable air gap. The process is complex and has poor accuracy. The adjustment load and cycle are 3-5 times more expensive than conventional designs.

[0004] This often causes displacement of the generator rotor relative to the generator body (stator) (change in the air gap between the rotor and stator). It requires connecting the generator rotor to the diesel engine output shaft and stern shaft at both ends, respectively, and then readjusting the air gap between the generator rotor and the generator body. This significantly increases the workload, installation time, and labor intensity of the generator installation process, and significantly reduces installation efficiency.

[0005] Currently, the domestic shipbuilding and repair industry uses the following process for aligning the shaft system of permanent magnet shaft-driven generators: The main process steps are divided into two parts: 1. Open condition adjustment of SAG and GAP; 2. Close condition lifting test to determine the load.

[0006] Open condition adjustment: Load: Additional rotor weight, additional shaft weight, and the rotor and stator must be concentric so that the magnetic forces at the four points on the rotor (up, down, left, and right) cancel each other out.

[0007] According to the calibration calculation, temporary supports are set at the beginning and end of the rotor shaft to adjust SAG and GAP.

[0008] Close condition: Load: constant magnetic force + rotor weight.

[0009] Process: During the jacking load test phase, two groups of people are required. The first group (2-3 people) jacks the shaft system according to the calibration calculation requirements, while the second group (4-5 people) fine-tunes the air gap between the stator and rotor of the shaft. That is, a constant magnetic force must be considered at every point in the shaft system load test, meaning that the air gap value is equal every time.

[0010] In this case, the first group of people cannot immediately record the lifting displacement value after lifting each point. They need to wait for the second group of people to adjust the shaft anchor bolts to make the air gap value equal to the initial air gap. The air gap needs to be measured at four points on the top, bottom, left, and right sides of both ends of the shaft, with an accuracy of 0.01mm.

[0011] A complete lifting test load typically requires measuring 5-6 bearing points, totaling approximately 200-250 measurements. This repetitive operation, coupled with the difficulty in controlling the accuracy of manual measurement of the air gap, leads to instability in the magnetic force's influence on the shaft system, resulting in excessive fluctuations in load sampling points and large deviations in the actual load readings. Summary of the Invention

[0012] To overcome the above-mentioned defects, the present invention provides a permanent magnet type shaft alignment device for a generator with demagnetizing force. In the shaft load calculation stage, the generator rotor shaft and generator housing are first regarded as a closed system. At this time, the magnetic force between the generator rotor and the stator will be converted into internal force. According to the principle that the external force acting on the closed system is unrelated to the internal force of the closed system, the lifting force of the hydraulic jack is applied to the closed system in the lifting stage. At this time, the closed system is displaced under the external force. During this process, the magnetic force is always an internal force and has no effect on the closed system.

[0013] This means that the rotor shaft, rotor, shaft generator, and stator need to be effectively fixed to form a closed system. In this case, the entire shaft generator can be equated to the intermediate connecting shaft in a traditional system, and the alignment process involves aligning the intermediate connecting shaft. Therefore, this invention designs a permanent magnet type shaft-mounted generator shaft alignment device that can eliminate magnetic force. Before aligning the generator shaft, the generator rotor and generator body can be relatively locked to form the aforementioned closed system to eliminate the influence of internal magnetic force.

[0014] The specific technical solution adopted is as follows: A shaft alignment device for a permanent magnet type bearing-mounted generator capable of demagnetizing magnetic force includes: The two-sided bearing clamps are mounted on the generator. The two-sided bearing clamps include a bearing support and two-sided clamping bearing clamps. The bearing support is mounted on the generator, and the two-sided clamping bearing clamps slide and clamp the bearing towards the rotor of the generator on the bearing support. A shaft clamping circumferential adjustment component is disposed on the two sides of the shaft clamping component. The shaft clamping circumferential adjustment component includes a left shaft clamping circumferential adjustment component and a right shaft clamping circumferential adjustment component. The left shaft clamping circumferential adjustment component and the right shaft clamping circumferential adjustment component move with the two sides of the shaft clamping component to clamp and lock the rotor.

[0015] Preferably, the bearing support includes a bottom bearing support and a top bearing support. The bottom bearing support is connected to one end face of the generator body by a first screw, and the top bearing support is connected to one end face of the generator by a second screw. The top bearing support is parallel to the bottom bearing support.

[0016] Preferably, the two-sided clamping shaft assembly includes a bottom clamping shaft power component, a top clamping shaft power component, and two-sided clamping shaft clamping components. The bottom clamping shaft power component is disposed on the bottom support seat of the shaft, the top clamping shaft power component is disposed on the top support seat of the shaft, and the two-sided clamping shaft clamping components are simultaneously disposed on the bottom clamping shaft power component and the top clamping shaft power component and are driven.

[0017] Preferably, the bottom axle clamping power component includes a bottom axle clamping transmission component and a first power component. The bottom axle clamping transmission component is slidably disposed on the bottom axle clamping support seat, and the first power component drives the bottom axle clamping transmission component to slide on the bottom axle clamping support seat.

[0018] Preferably, the bottom bearing drive component includes a left slider, a right slider, and a screw. The left slider is slidably fitted into one end of the first dovetail groove on the top surface of the bottom bearing support. The right slider has the same structure as the left slider and is slidably fitted into the other end of the first dovetail groove. The two ends of the screw are respectively fitted through the third threaded hole on the left slider and the fourth threaded hole on the right slider, and the screw is driven by the first power component.

[0019] Preferably, the top axle clamping power component and the bottom axle clamping power component have the same structure. The top axle clamping power component is disposed on the top axle clamping support, and the connection method between the top axle clamping power component and the top axle clamping support is the same as the connection method between the bottom axle clamping power component and the bottom axle clamping support.

[0020] Preferably, the two-sided shaft clamping components include a left shaft clamping seat and a right shaft clamping seat. The bottom end of the left shaft clamping seat is disposed on the left slider, and the top end of the left shaft clamping seat is disposed on the left slider of the top shaft clamping power component. The right shaft clamping seat has the same structure as the left shaft clamping seat. The bottom end of the right shaft clamping seat is disposed on the right slider, and the top end of the right shaft clamping seat is disposed on the right slider of the top shaft clamping power component. One side of the left shaft clamping seat is provided with a shaft clamping arc surface.

[0021] Preferably, the left-side circumferential adjusting member includes a circumferential adjusting member and a circumferential adjusting power member. The circumferential adjusting member is circumferentially slidably disposed on the left-side circumferential clamping seat, and the circumferential adjusting power member drives the circumferential adjusting member to slide circumferentially on the left-side circumferential clamping seat.

[0022] Preferably, the circumferential adjustment bearing assembly includes a circumferential rotating seat, a circumferential transmission plate, and a circumferential bearing plate. The circumferential rotating seat is rotatably fitted into the bearing rotation groove on the bearing arc surface, and the circumferential rotating seat is circumferentially driven by the circumferential adjustment power component. The outer wall of the circumferential transmission plate passes through the bearing rotation groove and is fixedly disposed on the inner wall of the circumferential rotating seat. The outer wall of the circumferential bearing plate is fixedly disposed on the inner wall of the circumferential transmission plate, for bearing locking of the rotor shaft.

[0023] Preferably, the right-side circumferential adjusting member has the same structure as the left-side circumferential adjusting member, the right-side circumferential adjusting member is disposed on the right-side circumferential clamping seat, and the connection method between the right-side circumferential adjusting member and the right-side circumferential clamping seat is the same as the connection method between the left-side circumferential adjusting member and the left-side circumferential clamping seat.

[0024] The present invention has at least the following beneficial effects: 1) The permanent magnet shaft-mounted generator shaft alignment device of this invention features a high degree of automation and stable rotor shaft-mounted locking and clamping. It converts the external magnetic force of the generator stator into internal force through a closed system. This transforms the shaft alignment process of the permanent magnet shaft generator into a traditional shaft alignment mode, simplifying the process, significantly improving generator installation efficiency, and significantly reducing the workload, installation cycle, and labor intensity during generator installation. After the alignment process is completed, the generator rotor shaft can be unlocked from the generator body, allowing it to be put into normal operation without affecting the normal use of the generator. 2) The permanent magnet shaft alignment device for generators with demagnetizing force of the present invention is equipped with shaft clamping components on both sides and shaft circumferential adjustment components. The shaft clamping components on both sides can drive the shaft circumferential adjustment components to clamp and lock the rotor, so as to prevent the air gap between the rotor and the stator from changing during the connection of the generator rotor to the diesel engine output shaft and the stern shaft respectively. The entire shaft is locked into a closed system, eliminating the interference of magnetic force in the shaft during the shaft alignment process. That is, the entire shaft is equivalent to the intermediate shaft in the traditional transmission system, and the alignment can be performed on this intermediate shaft. This simplifies the shaft alignment process, significantly improves the generator installation efficiency, and significantly reduces the workload, installation cycle and labor intensity of the generator installation process.

[0025] Other advantages, objectives and features of the present invention will become apparent in part from the following description, and in part from those skilled in the art through study and practice of the invention. Attached Figure Description

[0026] Figure 1 This is a front view of the shaft alignment device for a permanent magnet shaft-mounted generator with demagnetizing force according to the present invention. Figure 2 This is a side front view of the shaft alignment device for a permanent magnet shaft-mounted generator with demagnetizing force according to the present invention. Figure 3 This is a three-dimensional structural diagram of the left side of the shaft alignment device for the permanent magnet shaft-mounted generator with demagnetizing force according to the present invention; Figure 4 This is a three-dimensional structural diagram of the right side of the shaft alignment device for the permanent magnet shaft-mounted generator with demagnetizing force according to the present invention. Figure 5 This invention relates to a shaft alignment device for a permanent magnet shaft-mounted generator capable of demagnetizing. Figure 2 Front view of the cross section along the AA direction; Figure 6 This invention relates to a shaft alignment device for a permanent magnet shaft-mounted generator capable of demagnetizing. Figure 5 A magnified view of part C; Figure 7 This invention relates to a shaft alignment device for a permanent magnet shaft-mounted generator capable of demagnetizing. Figure 2 Schematic diagram of the three-dimensional structure in the AA direction section; Figure 8 This invention relates to a shaft alignment device for a permanent magnet shaft-mounted generator capable of demagnetizing. Figure 7 A magnified view of part D; Figure 9 This invention relates to a shaft alignment device for a permanent magnet shaft-mounted generator capable of demagnetizing. Figure 1 Schematic diagram of the three-dimensional structure in the BB direction; Figure 10 This invention relates to a shaft alignment device for a permanent magnet shaft-mounted generator capable of demagnetizing. Figure 9 A magnified view of part E in the image.

[0027] Wherein: 1-Bottom support of the shaft, 2-Top support of the shaft, 3-Left slider, 4-Right slider, 5-Screw, 6-First motor, 7-First worm, 8-First worm wheel, 9-Left shaft clamping seat, 10-Right shaft clamping seat, 11-Circumferential rotating seat, 12-Circumferential transmission plate, 13-Circumferential shaft clamping plate, 14-Thrust ball bearing, 15-Bearing, 16-Second motor, 17-Gear, 18-Gear ring, 19-Bolt positioning hole, 20-First screw, 21-Second screw, 22-Rotor, 23-Generator body. Detailed Implementation

[0028] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings and by way of embodiments. It should be noted that the description of these embodiments is for the purpose of helping to understand the present invention, but does not constitute a limitation of the present invention.

[0029] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, B exists alone, and A and B exist simultaneously. The term " / and" in this article describes another type of relationship between related objects, indicating that two relationships can exist. For example, A / and B can mean: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the related objects before and after it are in an "or" relationship.

[0030] according to Figures 1-10 As shown, a permanent magnet type shaft alignment device for a generator with demagnetizing force includes two shaft clamping members and a shaft clamping circumferential adjustment member. The two shaft clamping members are mounted on the generator, and the shaft clamping circumferential adjustment member is mounted on the two shaft clamping members. The two shaft clamping members include shaft clamping support members and two side clamping shaft clamping members. The shaft clamping support members are mounted on the generator, and the two side clamping shaft clamping members are mounted on the shaft clamping support members.

[0031] The bearing support includes a bottom bearing support and a top bearing support, both of which are mounted on the generator. The bottom bearing support includes a bottom bearing support base 1, which is a rectangular thick plate. The bottom bearing support base 1 is connected to one end face of the generator body 23 (the generator's mounting base) by a first screw 20. Furthermore, the first screw 20 passes through a first through hole on the bottom bearing support base 1 and is screwed into a first threaded hole on one end face of the generator body 23, so that one side of the bottom bearing support base 1 is tightly fitted to one end face of the generator body 23, providing stable support for the rotor 22 of the generator held by the two bearing clamps. Four first screws 20 are evenly distributed on the bottom bearing support base 1. A first dovetail groove is provided on the top surface of the bottom bearing support base 1.

[0032] The top support component of the shaft clamping member includes a top support seat 2, which is a long, thick plate. The top support seat 2 is connected to one end face of the generator by a second screw 21, and is located above the bottom support seat 1, parallel to it. Further, the second screw 21 passes through a second through hole at one end of the top support seat 2 and is screwed into a second threaded hole on one end face of the generator body 23, tightly fitting one side of the top support seat 2 against one end face of the generator body 23, providing stable support for the rotor 22 of the generator held by the two clamping members. Two second screws 21 are evenly distributed at both ends of the top support seat 2. A second dovetail groove is provided on the bottom surface of the top support seat 2, which has the same structure as the first dovetail groove and is parallel to each other on the same plane.

[0033] The two-sided clamping shaft assembly includes a bottom clamping shaft power component, a top clamping shaft power component, and two-sided clamping shaft clamping components. The bottom clamping shaft power component is disposed on the bottom support of the clamping shaft, the top clamping shaft power component is disposed on the top support of the clamping shaft, and the two-sided clamping shaft clamping components are disposed on both the bottom clamping shaft power component and the top clamping shaft power component.

[0034] The bottom axle-holding power component includes a bottom axle-holding transmission component and a first power component, both of which are mounted on the bottom support base 1 of the axle. The bottom axle-holding transmission component includes a left slider 3, a right slider 4, and a screw 5. The left slider 3 is dovetail-shaped and slidably fitted into one end of the first dovetail groove. The right slider 4 has the same structure as the left slider 3 and is slidably fitted into the other end of the first dovetail groove, and is symmetrical to the left slider 3. The two ends of the screw 5 correspond to and pass through the third threaded hole on the left slider 3 and the fourth threaded hole on the right slider 4. Alternatively, the two ends of the screw 5 are rotatably mounted on rotating seats at the two ends of the first dovetail groove.

[0035] The first power component includes a first motor 6, a first worm 7, and a first worm wheel 8. The first motor 6 is fixedly mounted on the other side of the bottom support base 1 of the bearing, and the free end of the shaft of the first motor 6 rotates through the first dovetail groove. The first worm 7 is mounted on the free end of the shaft of the first motor 6, and the first worm wheel 8 is fixedly fitted onto the screw 5 at the axial center position, and the first worm wheel 8 meshes with the first worm 7. When the first motor 6 drives the screw 5 to rotate through the first worm 7 and the first worm wheel 8, the screw 5 simultaneously drives the left slider 3 and the right slider 4 to slide inward or outward at the same speed through the third threaded hole and the fourth threaded hole, so as to drive the two bearing clamping members to clamp and lock one end of the rotor 22.

[0036] The top shaft clamping power component has the same structure as the bottom shaft clamping power component. The top shaft clamping power component is mounted on the top shaft clamping support 2, and the connection method between the top shaft clamping power component and the top shaft clamping support 2 is the same as the connection method between the bottom shaft clamping power component and the bottom shaft clamping support 1. The bottom shaft clamping power component and the top shaft clamping power component are used to work together to drive the two side shaft clamping clamps to clamp and lock the rotor 22's shaft.

[0037] The two-sided shaft clamping components include a left shaft clamping seat 9 and a right shaft clamping seat 10. The left shaft clamping seat 9 is generally rectangular and thick, with its bottom fixed to the left slider 3 and its top fixed to the left slider 3 of the top shaft clamping power component. The right shaft clamping seat 10 has the same structure as the left shaft clamping seat 9, with its bottom fixed to the right slider 4 and its top fixed to the right slider 4 of the top shaft clamping power component. The left shaft clamping seat 9 and the right shaft clamping seat 10 are driven by the bottom shaft clamping power component and the top shaft clamping power component, respectively, and the shaft of the rotor 22 is locked from both sides by the shaft clamping circumferential adjustment component. Furthermore, one side of the left shaft clamping seat 9 is provided with a shaft clamping arc surface, the radius of which is larger than the diameter of the rotor 22's shaft. The axis of the bearing arc surface is on the same horizontal plane and parallel to the axis of the rotor 22.

[0038] The circumferential adjusting component for the shaft clamping mechanism includes a left-side circumferential adjusting component and a right-side circumferential adjusting component. The left-side circumferential adjusting component is mounted on the left-side shaft clamping seat 9, and the right-side circumferential adjusting component is mounted on the right-side shaft clamping seat 10. The left-side circumferential adjusting component includes a circumferential adjusting shaft clamping component and a circumferential adjusting power component, both of which are mounted on the left-side shaft clamping seat 9.

[0039] The circumferential adjusting shaft clamping component includes a circumferential rotating seat 11, a circumferential transmission plate 12, and a circumferential shaft clamping plate 13. The circumferential rotating seat 11 is rotatably mounted on the left shaft clamping seat 9, the circumferential transmission plate 12 is mounted on the circumferential rotating seat 11, and the circumferential shaft clamping plate 13 is mounted on the circumferential transmission plate 12.

[0040] The circumferential rotating seat 11 is in the shape of an arc plate, and is rotatably fitted into the rotating groove on the arc surface of the shaft. The rotating groove is generally arc-shaped, with its axis coinciding with the axis of the arc surface. The cross-section of the rotating groove is C-shaped, and its opening is continuous with the arc surface. Furthermore, the two sides of the circumferential rotating seat 11 are rotatably connected to the two side walls of the rotating groove via thrust ball bearings 14, and the outer wall of the circumferential rotating seat 11 is rotatably connected to the bottom of the rotating groove via bearings 15. Two bearings 15 are symmetrically distributed at intervals at both ends of the circumferential rotating seat 11. The circumferential transmission plate 12 is in the shape of a semi-circular ring, and its outer wall passes through the rotating groove and is fixedly mounted on the inner wall of the circumferential rotating seat 11. The circumferential shaft-holding plate 13 is in the shape of an arc plate, and the outer wall of the circumferential shaft-holding plate 13 is fixedly disposed on the inner wall of the circumferential transmission plate 12 for directly locking the shaft of the rotor 22.

[0041] The circumferential adjustment power component includes a second motor 16, a gear 17, and a gear ring 18. The second motor 16 is fixedly mounted on the left-side shaft clamping seat 9. The gear 17 is mounted on the second motor 16, and the gear ring 18 is mounted on the circumferential rotating seat 11. The shaft of the second motor 16 rotates through a transmission cavity within the left-side shaft clamping seat 9, and the transmission cavity communicates with the bottom of the shaft rotating groove. The gear 17 is fixedly fitted onto the shaft of the second motor 16 within the transmission cavity, and the gear ring 18 is fixedly fitted onto the circumferential rotating seat 11, with the gear ring 18 meshing with the gear 17. When the circumferential adjusting shaft clamp is moved to the right by the left shaft clamping seat 9, and the shaft clamp is locked onto the rotating shaft of the rotor 22, the second motor 16 is started, which drives the circumferential shaft clamping plate 13 to rotate through the gear 17 and the gear ring 18. The rotating circumferential shaft clamping plate 13, through the frictional force of clamping and locking the rotating shaft of the rotor 22, drives the rotating shaft of the rotor 22 to rotate circumferentially, so that the bolt positioning holes 19 on the flange of the rotor 22 are circumferentially aligned and connected with the bolt positioning holes on the flange of the diesel engine output shaft and the bolt positioning holes on the flange of the stern shaft. The stern shaft is used to transmit power to the propeller.

[0042] The right-side shaft clamping circumferential adjusting component has the same structure as the left-side shaft clamping circumferential adjusting component. The right-side shaft clamping circumferential adjusting component is mounted on the right-side shaft clamping seat 10, and the connection method between the right-side shaft clamping circumferential adjusting component and the right-side shaft clamping seat 10 is the same as the connection method between the left-side shaft clamping circumferential adjusting component and the left-side shaft clamping seat 9. This is used to clamp and lock the other side of the rotor 22's shaft. It should be noted that by cooperating with the left-side and right-side shaft clamping circumferential adjusting components to clamp and lock the rotor 22's shaft, the relative position of the rotor 22 and the generator body 23 can be locked, preventing displacement of the rotor 22 on the generator body 23 when the rotor 22 is connected to the output shaft of the diesel engine and the stern shaft respectively.

[0043] Furthermore, when the rotor 22 of the generator is connected to the diesel engine and the stern shaft respectively, two sets of permanent magnet shaft alignment devices for demagnetizing the generator are provided to clamp and lock the two ends of the rotor shaft of the generator rotor 22 respectively, thereby further improving the stability of the relative position locking between the rotor 22 and the generator body 23 during the transmission connection process.

[0044] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A shaft alignment device for a permanent magnet type bearing generator capable of demagnetizing, characterized in that, include: The two-sided bearing clamps are mounted on the generator. The two-sided bearing clamps include a bearing support and two-sided clamping bearing clamps. The bearing support is mounted on the generator, and the two-sided clamping bearing clamps slide and clamp the bearing towards the rotor of the generator on the bearing support. A shaft clamping circumferential adjustment component is disposed on the two sides of the shaft clamping component. The shaft clamping circumferential adjustment component includes a left shaft clamping circumferential adjustment component and a right shaft clamping circumferential adjustment component. The left shaft clamping circumferential adjustment component and the right shaft clamping circumferential adjustment component move with the two sides of the shaft clamping component to clamp and lock the rotor.

2. The shaft alignment device for a permanent magnet type bearing-mounted generator with demagnetizing force as described in claim 1, characterized in that, The bearing support includes a bottom bearing support and a top bearing support. The bottom bearing support is connected to one end face of the generator body by a first screw, and the top bearing support is connected to one end face of the generator by a second screw. The top bearing support is parallel to the bottom bearing support.

3. The shaft alignment device for a permanent magnet type shaft-mounted generator with demagnetizing force as described in claim 2, characterized in that, The two-sided clamping shaft assembly includes a bottom clamping shaft power component, a top clamping shaft power component, and two-sided clamping shaft clamping components. The bottom clamping shaft power component is mounted on the bottom support seat of the clamping shaft, the top clamping shaft power component is mounted on the top support seat of the clamping shaft, and the two-sided clamping shaft clamping components are simultaneously mounted on the bottom clamping shaft power component and the top clamping shaft power component and are driven.

4. The shaft alignment device for a permanent magnet type shaft-mounted generator with demagnetizing force as described in claim 3, characterized in that, The bottom axle clamping power component includes a bottom axle clamping transmission component and a first power component. The bottom axle clamping transmission component is slidably mounted on the bottom axle clamping support seat, and the first power component drives the bottom axle clamping transmission component to slide on the bottom axle clamping support seat.

5. The shaft alignment device for a permanent magnet type shaft-mounted generator with demagnetizing force according to claim 4, characterized in that, The bottom bearing drive component includes a left slider, a right slider, and a screw. The left slider is slidably fitted into one end of the first dovetail groove on the top surface of the bottom support seat of the bearing. The right slider has the same structure as the left slider and is slidably fitted into the groove at the other end of the first dovetail groove. The two ends of the screw are respectively fitted through the third threaded hole on the left slider and the fourth threaded hole on the right slider, and the screw is driven by the first power component.

6. The shaft alignment device for a permanent magnet type shaft-mounted generator with demagnetizing force according to any one of claims 3-5, characterized in that, The top axle clamping power component has the same structure as the bottom axle clamping power component. The top axle clamping power component is mounted on the top axle clamping support seat, and the connection method between the top axle clamping power component and the top axle clamping support seat is the same as the connection method between the bottom axle clamping power component and the bottom axle clamping support seat.

7. The demagnetizing permanent magnet type shaft alignment device for a generator as described in claim 4 or 5, characterized in that, The two-sided shaft clamping components include a left shaft clamping seat and a right shaft clamping seat. The bottom end of the left shaft clamping seat is disposed on the left slider, and the top end of the left shaft clamping seat is disposed on the left slider of the top shaft clamping power component. The right shaft clamping seat has the same structure as the left shaft clamping seat. The bottom end of the right shaft clamping seat is disposed on the right slider, and the top end of the right shaft clamping seat is disposed on the right slider of the top shaft clamping power component. One side of the left shaft clamping seat is provided with a shaft clamping arc surface.

8. The shaft alignment device for a permanent magnet type shaft-mounted generator with demagnetizing force according to claim 7, characterized in that, The left-side shaft clamping circumferential adjustment component includes a circumferential adjustment shaft clamping component and a circumferential adjustment power component. The circumferential adjustment shaft clamping component is circumferentially slidably disposed on the left-side shaft clamping seat, and the circumferential adjustment power component drives the circumferential adjustment shaft clamping component to slide circumferentially on the left-side shaft clamping seat.

9. The shaft alignment device for a permanent magnet type bearing-mounted generator with demagnetizing force according to claim 8, characterized in that, The circumferential adjustment bearing assembly includes a circumferential rotating seat, a circumferential transmission plate, and a circumferential bearing plate. The circumferential rotating seat is rotatably fitted into the bearing rotation groove on the bearing arc surface, and the circumferential rotating seat is circumferentially driven by the circumferential adjustment power component. The outer wall of the circumferential transmission plate passes through the bearing rotation groove and is fixedly disposed on the inner wall of the circumferential rotating seat. The outer wall of the circumferential bearing plate is fixedly disposed on the inner wall of the circumferential transmission plate, for bearing locking of the rotor shaft.

10. The shaft alignment device for a permanent magnet type bearing-mounted generator with demagnetizing force according to claim 8, characterized in that, The right-side circumferential adjusting member has the same structure as the left-side circumferential adjusting member. The right-side circumferential adjusting member is mounted on the right-side circumferential clamping seat, and the connection method between the right-side circumferential adjusting member and the right-side circumferential clamping seat is the same as the connection method between the left-side circumferential adjusting member and the left-side circumferential clamping seat.

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