Magnetic conductance modulated rotor

Abstract

The invention belongs to the technical field of special motors, and provides a magnetic conductance modulation rotor. Comprising a plurality of magnetism adjusting blocks which are formed by sequentially laminating silicon steel sheets in the width direction; the first rotor part and the second rotor part are assembled to the two ends of the rotor respectively and each comprise an end ring assembly and an end pressing plate. Each end ring assembly comprises a limiting part; embedding grooves matched with the magnetism adjusting blocks in number are formed in the surfaces of the end pressing plates; the two ends of the magnetic conductance modulation ring are embedded into the two opposite embedding grooves respectively and abut against each other oppositely through the corresponding end ring assemblies to achieve axial limiting, and meanwhile the two ends of the magnetic conductance modulation ring are circumferentially limited through cooperation of the corresponding limiting parts and the embedding grooves. The two ends of each magnetism adjusting block in the magnetic conductance modulation ring are inserted into the opposite embedding grooves respectively and pressed oppositely through the corresponding end pressing plates, and meanwhile the corresponding limiting parts are matched with the embedding grooves to achieve circumferential limiting of the two ends of the magnetic conductance modulation ring respectively. The magnetic conductance modulation rotor provided by the invention ensures reliable and efficient operation of the motor and the magnetic gear.

Description

Technical Field

[0001] The present invention belongs to the technical field of special motors, and relates to a magnetic conductance modulation rotor, specifically a low-speed magnetic conductance modulation rotor applicable to magnetic field modulation motors and magnetic gears. Background Art

[0002] Magnetic field modulation motors and magnetic gears based on the principle of magnetic field modulation have the advantage of high torque density and are very suitable for low-speed and high-torque application scenarios. In the foregoing motors and magnetic gears, magnetic field modulation is achieved by introducing magnetically modulating blocks arranged at intervals. When the magnetically modulating blocks arranged at intervals are used as the main components of the low-speed rotors of the foregoing motors and magnetic gears to output torque, they not only play the role of magnetic conductance modulation but also are subjected to a large output torque and the centrifugal force generated during the rotation process. Therefore, the magnetically modulating blocks need to have good mechanical properties to ensure that they do not deform during the operation of the motors and magnetic gears.

[0003] Most of the existing magnetically modulating blocks arranged at intervals for manufacturing the foregoing rotors adopt the method of axially laminating silicon steel sheets. Although the eddy current loss of the silicon steel sheets in this solution is small, the magnetic conductance modulation rotor made of magnetically modulating blocks in this form has poor rigidity, making the foregoing magnetic conductance modulation rotor prone to deformation during the operation of the motors and magnetic gears. Another solution is to connect the magnetically modulating blocks arranged at intervals with a magnetic ring that conducts magnetic flux. Although the overall structural integrity of the magnetic conductance modulation rotor is good, the increased magnetic leakage caused by the connection between the magnetically modulating blocks and the magnetic ring will also affect the electromagnetic performance of the motors and magnetic gears. Moreover, in the foregoing two common solutions, axial tension bars are required to axially tension the magnetically modulating blocks and other components of the rotor and to form the overall shape of the magnetic conductance modulation rotor, and the eddy current generated in the axial tension bars will also affect the electromagnetic performance of the motors and magnetic gears.

[0004] Based on this, there is an urgent need to invent a magnetic conductance modulation rotor to solve the foregoing technical problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a magnetic conductance modulation rotor to solve the technical problems that the existing magnetic conductance modulation rotors are prone to deformation when applied to magnetic field modulation motors and magnetic gears, affecting the reliable operation of both, and the electromagnetic performance of both is affected by magnetic leakage of the magnetic conduction connecting magnetic bridge and eddy current of the axial tension bar.

[0006] To achieve the above purpose, the specific technical solution of a magnetic conductance modulation rotor provided by the present invention is as follows: The magnetic conductance modulation rotor structure is applied to magnetic field modulation motors and magnetic gears, including:

[0007] A plurality of magnetically modulating blocks are circumferentially arranged at intervals to form a magnetic conductance modulation ring, and each of the magnetically modulating blocks is formed by sequentially laminating silicon steel sheets along the width direction;

[0008] The first rotor component and the second rotor component are respectively assembled to both ends of the magnetic conduction modulation ring, and each includes an end ring assembly and an end pressing plate that abuts against the end ring assembly; wherein, each of the end ring assemblies includes an end plate and a limiting portion assembled to the end plate; each surface of the end pressing plate has a plurality of fitting grooves arranged circumferentially and adapted to the number of magnetic modulation blocks;

[0009] Both ends of each of the magnetic modulation blocks in the magnetic conduction modulation ring are respectively embedded into two opposite fitting grooves and are spatially corresponding to the limiting portions one by one. The end pressing plates are tightly abutted against each other through the end ring assemblies, so that both ends of the magnetic modulation ring are tightly clamped with the limiting portions respectively to realize the axial limit of the magnetic conduction modulation ring. At the same time, the circumferential limits of both ends of the magnetic conduction modulation ring are respectively realized through the cooperation of the corresponding limiting portions and the fitting grooves.

[0010] In a specific embodiment, an inner side surface of each of the limiting portions and a side surface of the corresponding end plate enclose a limiting space, and both end portions of each of the magnetic modulation blocks are respectively clamped in the corresponding limiting spaces to prevent the circumferential displacement of both end portions of the magnetic modulation blocks.

[0011] In a specific embodiment, each of the limiting portions includes two limiting protrusions arranged facing each other, and the distance value between the ends of each group of the limiting protrusions facing away from the magnetic conduction modulation ring is greater than the distance value between the ends of the same group of the limiting protrusions close to the magnetic conduction modulation ring;

[0012] When each of the magnetic modulation blocks extends towards both ends near the end position, the thickness value gradually increases, but its maximum value is less than the distance value between the ends of the limiting protrusions facing away from the magnetic conduction modulation ring and greater than the distance value between the ends of the limiting protrusions close to the magnetic conduction modulation ring;

[0013] In a specific embodiment, the height of the limiting protrusion is greater than the length of the extending portion of the end of the magnetic modulation block.

[0014] In a specific embodiment, the shape of the ground projection of the end plate is an annular shape, and multiple groups of the limiting protrusions are arranged along the circumferential direction of the end pressing ring; each group of the limiting protrusions is respectively fixed at the corresponding positions on both edges of the end plate.

[0015] In a specific embodiment, each of the end ring assemblies further includes a plurality of pressing members, and one end ring assembly is simultaneously pressed against the corresponding end plate through the plurality of pressing members, and at the same time, the other end ring assembly is also simultaneously pressed against the corresponding end plate through the plurality of pressing members to realize the mutual pressing of the magnetic conduction modulation ring.

[0016] In a specific embodiment, a plurality of mounting holes adapted to the number of the pressing members are formed in each of the end plates, and each of the plurality of pressing members passes through the corresponding mounting hole and presses against the corresponding end pressing plate at the same time.

[0017] In a specific embodiment, when each end plate is pressed against the corresponding end pressing plate by the pressing member, the end pressing plate is sleeved between the end plate and the limiting portion, and the position of the fitting groove corresponds to the limiting portion one by one.

[0018] In a specific embodiment, the width of the end pressing plate is smaller than the distance value between the ends of the limiting protrusions close to the magnetic flux modulation ring, and the width of the fitting groove is slightly larger than the width of the end of the magnetic modulation block.

[0019] In a specific embodiment, the pressing member is a bolt member, and its length is to ensure that the bolt head of the bolt member is closely attached to the end plate, and the bottom of the bolt rod of the bolt member is closely attached to the end pressing plate.

[0020] In a specific embodiment, two limiting members are further included, and one end ring assembly is inserted into the corresponding end pressing ring through one limiting member, and at the same time, the other end ring assembly is also inserted into the corresponding end pressing ring through the other limiting member to further prevent the circumferential movement of the end pressing ring and the magnetic modulation block.

[0021] In a specific embodiment, a limiting hole is formed in each of the end plates and the end pressing plates, and the limiting member passes through the limiting hole in the corresponding end plate and is inserted into the limiting hole in the end pressing plate;

[0022] In a specific embodiment, the circumferential positions of the limiting holes on one end plate and the corresponding limiting holes on the corresponding end pressing plate are the same, and the circumferential positions of the limiting holes on the other end plate and the corresponding limiting holes on the corresponding end pressing plate are the same.

[0023] In a specific embodiment, the limiting member is a pin.

[0024] In a specific embodiment, a rotating shaft is further included, and the rotating shaft is installed on the first rotor component or the second rotor component in a hot shrinkage manner.

[0025] The beneficial effects of the present invention are as follows: By respectively assembling a first rotor component and a second rotor component on both sides of a magnetic conductance modulation ring formed by a plurality of magnetic modulation blocks laminated along the width direction with silicon steel sheets, wherein both the first rotor component and the second rotor component include an end ring assembly and an end pressing plate abutted against the end ring assembly. Specifically, the end ring assembly includes an end plate and a limiting portion. The end pressing plate has a plurality of fitting grooves. Both ends of each magnetic modulation block in the magnetic conductance modulation ring are respectively inserted into the opposite fitting grooves and spatially correspond to the limiting portion. The corresponding end ring assemblies press the end pressing plate towards each other to achieve the axial limit of the magnetic conductance modulation ring. At the same time, through the cooperation of the corresponding limiting portion and the corresponding fitting groove, the circumferential limits of both ends of the magnetic conductance modulation ring are respectively achieved. Thus, by limiting the magnetic conductance modulation ring axially and circumferentially, not only is the good mechanical performance of the magnetic conductance modulation rotor ensured; since the axial tie rod in the existing magnetic conductance modulation rotor is omitted in this magnetic conductance modulation rotor, the influence of the eddy current generated by the axial tie rod on the electromagnetic performance of both the magnetic conductance modulation rotor applied to the magnetic field modulation motor and the magnetic gear is eliminated. Therefore, this magnetic conductance modulation rotor also has good electromagnetic performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is an enlarged schematic view of an existing magnetic modulation block;

[0027] 1’, silicon steel sheet;

[0028] Figure 2 is an enlarged schematic view of the improved magnetic modulation block;

[0029] Figure 3 is a schematic structural view of a rotor assembly based on magnetic conductance modulation in an embodiment of the present invention;

[0030] Figure 4 For the present invention Figure 1 is an exploded view of the rotor assembly based on magnetic conductance modulation in;

[0031] Figure 5 For the present invention Figure 1 is a schematic view of the state when the end ring assembly and the end plate are matched in;

[0032] Figure 6 For the present invention Figure 1 is a schematic view of the state when the end pressing ring and the limiting portion are matched in;

[0033] Figure 7 For the present invention Figure 1 is a schematic structural view of the magnetic modulation block in.

[0034] Reference numerals: 1, magnetic conductance modulation rotor; 10, magnetic conductance modulation ring; 100, magnetic modulation block;

[0035] 11. First rotor component; 110. End ring assembly; 1100. End plate; 1101. Mounting hole; 1102. Limiting part; 1103. Limiting protrusion; 1104. Limiting space;

[0036] 111. End pressing plate; 1110. Limiting hole; 1111. Fitting groove; 12. Second rotor component; 13. Pressing member; 14. Rotating shaft; 15. Silicon steel sheet. Detailed implementation manner

[0037] Next, the technical solutions in the present application will be clearly and elaborately described with reference to the accompanying drawings. Among them, in the description of the embodiments of the present application, unless otherwise specified, " / " means "or". For example, A / B may mean A or B: "and / or" in the text is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B may mean: A exists alone, A and B exist simultaneously, and B exists alone. In addition, in the description of the embodiments of the present application, "a plurality" means two or more than two. The following terms "first" and "second" are only used for descriptive purposes and cannot be understood as implying or suggesting relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0038] A magnetic flux modulation rotor 1 provided by the present invention can be applied to a magnetic field modulation motor and a magnetic gear, and includes a magnetic flux modulation ring 10, a first rotor component 11 and a second rotor component 12. The first rotor component 11 and the second rotor component 12 are respectively assembled to both ends of the magnetic flux modulation ring 10 to axially press the magnetic flux modulation ring 10 through the first rotor component 11 and the second rotor component 12, and circumferentially limit both ends of the magnetic flux modulation ring 10 at the same time.

[0039] The magnetic flux modulation ring 10 includes a plurality of magnetic modulation blocks 100. Each magnetic modulation block is formed by sequentially laminating a plurality of self-adhesive silicon steel sheets along the circumferential direction and then heating and curing them into one body, and is arranged at intervals along the circumferential direction. Compared with the existing axially laminated magnetic modulation blocks 100, when the magnetic modulation block 100 is subjected to a tangential force, the lamination direction of the silicon steel sheets of the magnetic modulation block 100 in the present application is the same as the direction of its own tangential force, so it is not easy to deform. In addition, the arrangement method in which the plurality of magnetic modulation blocks 100 in the magnetic flux modulation ring 10 are arranged at intervals can also achieve fan cooling, which is convenient for further realizing the heat dissipation of the magnetic field modulation motor and the magnetic gear.

[0040] The first rotor component 11 and the second rotor component 12 are respectively assembled to both ends of the magnetic flux modulation ring 10 and both include an end ring assembly 110 and an end pressing plate 111 that abuts against the end ring assembly 110. That is to say, the magnetic flux modulation rotor 1 based on this includes two end ring assemblies 110 and an end pressing plate 111.

[0041] Among them, each end ring assembly 110 includes an end plate 1100 and a limiting portion 1102 assembled to the end plate 1100; on the surface of each end pressing plate 111, there are a plurality of fitting grooves 1111 arranged along the circumferential direction and adapted to the number of magnetic modulation blocks 100. It should be noted that the number of magnetic modulation blocks 100 is determined by the speed ratio and the number of pole pairs of the high-speed rotor. To sum up, both ends of each magnetic modulation block 100 in the magnetic conductance modulation ring 10 are respectively embedded into the two opposite fitting grooves 1111 and are spatially in one-to-one correspondence with the limiting portion 1102. By making the corresponding end ring assemblies 110 press against the end pressing plate 111 in opposite directions, the end portions of the magnetic modulation blocks 100 are tightly fitted with the limiting portion 1102 to achieve axial limiting. At the same time, through the cooperation of the corresponding limiting portion 1102 and the fitting groove 111, the circumferential limiting of both ends of the magnetic conductance modulation ring 10 is respectively realized. In order to prevent the eddy current generated by the magnetic modulation block 100 from forming a circulating current through the end plate 111 during the operation of the motor, it is necessary to perform insulation treatment on the magnetic modulation block 100. Specifically, the two ends of the magnetic modulation block 100 can be wound with glass non-woven tape. Of course, an insulating gasket can also be laid between the magnetic conductance modulation ring 10 and the end plate 111.

[0042] It can be understood that the magnetic conductance modulation rotor 1 not only omits the axial pull rod that generates eddy current, eliminating the influence of the eddy current generated by the axial pull rod on the electromagnetic performance of both the magnetic conductance modulation rotor 1 when applied to the magnetic field modulation motor and the magnetic gear, but also there is no need to add non-magnetic components to support or integrally potting between every two adjacent magnetic modulation blocks 100 in the magnetic conductance modulation ring 10, so that the magnetic conductance modulation rotor 1 has the advantages of simple structure, good process performance, good electromagnetic performance and reliable operation.

[0043] In a specific embodiment, the inner side surface of each limiting portion 1102 and the side surface of the corresponding end pressing ring 1100 enclose a limiting space 1104, and both ends of each magnetic modulation block 100 are respectively clamped in the corresponding limiting space 1104 to ensure the axial pressing of the magnetic modulation block 100, and at the same time, the circumferential movement of both ends of the magnetic modulation block 100 can be prevented. Obviously, the number of the limiting portions 1102 is determined by the number of the magnetic modulation blocks 100, and each magnetic modulation block 100 corresponds to two limiting portions 1102.

[0044] In a specific embodiment, each limiting portion 1102 includes two oppositely arranged limiting protrusions 1103, and the two oppositely arranged limiting protrusions 1103 form a group. To ensure the firmness of the axial and circumferential limits of the magnetic conduction modulation ring 10, the distance value between the ends of each group of limiting protrusions 1103 facing away from the magnetic conduction modulation ring 10 is greater than the distance value between the ends of the same group of limiting protrusions 1103 close to the magnetic conduction modulation ring 10. That is to say, the distance value gradually decreases when extending from the head end (here referring to the position where the limiting protrusion 1103 is fixed to the end pressing ring 1100) to the tail end of each group of limiting protrusions 1103. In contrast, when each magnetic modulation block 100 extends towards both ends near the end position, the thickness value gradually increases, and the maximum thickness value of the magnetic modulation block 100 is less than the distance of the head end of the limiting protrusion and greater than the distance of the tail end of the limiting protrusion. At the same time, it is also necessary to ensure that the height value of the limiting protrusion 1103 is greater than the length value of the extended part on the magnetic modulation block 100.

[0045] In a specific embodiment, the shape of the end plate 1100 projected on the ground is a circular ring. Referring to the foregoing, the magnetic conduction modulation ring 10 is formed by arranging a plurality of magnetic modulation blocks 100 at intervals in the circumferential direction. Therefore, multiple groups of limiting protrusions 1103 are also arranged at intervals along the circumferential direction of the end pressing ring 1100, and each group of limiting protrusions 1103 is respectively fixed at the corresponding positions on the two edges of the end plate 1100.

[0046] In a specific embodiment, it further includes a plurality of pressing members 13, and one end ring assembly 110 is simultaneously pressed against the corresponding end pressing plate 111 through the plurality of pressing members 13. At the same time, the other end ring assembly 111 is also simultaneously pressed against the corresponding end plate 111 through the plurality of pressing members 13 to achieve the opposite pressing and tightening of the magnetic conduction modulation ring 10. In this specific embodiment, each end plate 1100 is jointly pressed against the corresponding end pressing plate 111 through the plurality of pressing members 13. At the same time, the other end plate 1100 is also simultaneously pressed against the corresponding end plate 111 through the plurality of pressing members 13 to achieve the opposite pressing and tightening of the magnetic conduction modulation ring 10. Here, the end pressing plate 111 may be a circular ring in the projection on the ground.

[0047] In a specific embodiment, both ends of the magnetic modulation block 10 are respectively placed in the corresponding fitting grooves 1111 and are respectively in one-to-one correspondence with the corresponding limiting portions 1102 in space. Therefore, the number of fitting grooves 1111 is the same as the number of limiting portions 1102, both of which are determined by the number of magnetic modulation blocks 10.

[0048] In a specific embodiment, the width of the end pressing plate 111 is less than the distance of the head end of the limiting protrusion 1103, and the width of the fitting groove 111 is slightly larger than the width of the magnetic modulation block 10.

[0049] In a specific embodiment, a plurality of mounting holes 1101 adapted to the number of pressing members 13 are formed in each end plate 1100, and on the same end plate 1100, each of the plurality of pressing members 13 penetrates through the corresponding mounting hole 1101 to simultaneously press against the corresponding end pressing plate 111, so as to tightly press the two ends of the magnetic flux modulation ring 10 towards each other.

[0050] In a specific embodiment, when each end plate 1100 presses against the corresponding end pressing plate through the pressing member 13, the end pressing plate is sleeved between the end plate 1100 and the limiting portion 1102.

[0051] In a specific embodiment, two limiting members (not shown in the figure) are further included, and one end ring assembly 110 is inserted into the corresponding end pressing ring 111 through the corresponding limiting member, and at the same time, the other end ring assembly 110 is also inserted into the corresponding end pressing ring 111 through the corresponding limiting member to prevent the circumferential displacement of the end pressing ring 111 and the magnetic modulation block 100.

[0052] In a specific embodiment, a limiting hole 1110 is formed in each end plate 1100, and a limiting hole 1110 is formed in each end pressing plate 111, and the limiting member penetrates through the corresponding limiting hole 1110 and is inserted into the corresponding limiting hole 1110.

[0053] In a specific embodiment, the limiting holes 1110 on one end plate 1100 and the limiting holes 1110 on the corresponding end pressing plate 111 are in the same circumferential position, and the limiting holes 1110 on the other end plate 1100 and the limiting holes 1110 on the corresponding end pressing plate 111 are in the same circumferential position.

[0054] In a specific embodiment, the pressing member 13 can be a bolt member. The length of the bolt member should ensure that the bolt head is in close contact with the end plate 1100, and the bottom of the screw rod is in close contact with the end pressing plate 111. After the bolt member is screwed in place, glue is applied for fastening to prevent falling off. Of course, in other specific embodiments, the pressing member 13 can also be other components.

[0055] In a specific embodiment, the limiting member can be a pin. Of course, in other specific embodiments, the limiting member can also be other components.

[0056] In a specific embodiment, a rotating shaft 14 is further included, and the rotating shaft 14 is installed on the first rotor component or the second rotor component in a hot sleeve manner, serving as the driving end of the magnetic flux modulation rotor 1 for transmitting torque.

[0057] In a specific embodiment, the materials of the rotating shaft 14, the end plate 1100 and the end pressing plate 111 can all be non-magnetic metal materials.

[0058] In a specific embodiment, first, the magnetic modulation blocks 100 are arranged and fixed at intervals in the circumferential direction by using the magnetic conduction modulation rotor assembly tooling. One end pressing plate 111 is placed on one end of the magnetic modulation blocks 100, and the end of each magnetic modulation block 100 falls into the corresponding fitting groove 1111. Then, the one-end ring assembly 110 is placed on the corresponding end pressing plate 111, so that each fitting groove 1111 and each magnetic modulation block 100 are located between the corresponding limiting parts 1102. Then, the end ring assembly 110 is rotated clockwise or counterclockwise, so that each fitting groove 1111 and each magnetic modulation block 100 are placed in the corresponding limiting parts 1102. Finally, the pressing member 13 passes through the mounting hole 1101 to penetrate the end plate 1110 to press the end pressing plate 111, so that the magnetic modulation blocks 100 are embedded in the fitting grooves 1111 and are tightly clamped with the limiting parts 1102 at the same time to realize the axial and circumferential limiting of the magnetic modulation blocks 100.

[0059] In a specific embodiment, after one end of the magnetic modulation block 10 is connected to the first rotor component or the second rotor component, the other end pressing plate 111 is placed on the other end of the magnetic modulation block 100. Similarly, the end of each magnetic modulation block 100 falls into the corresponding fitting groove 1111. Then, the other-end ring assembly 110 is placed on the corresponding end pressing plate 111, so that each fitting groove 1111 and each magnetic modulation block 100 are located between the corresponding limiting parts 1102. Then, the end ring assembly 110 is rotated clockwise or counterclockwise, so that each fitting groove 1111 and each magnetic modulation block 100 are placed in the corresponding limiting parts 1102. Finally, the pressing member 13 passes through the mounting hole 1101 to penetrate the end plate 1110 to press the end pressing plate 111, so that the magnetic modulation blocks 100 are embedded in the fitting grooves 1111 and are tightly clamped with the limiting parts 1102 at the same time to realize the axial and circumferential limiting of the magnetic modulation blocks 100.

[0060] It can be understood that the present invention is described by some embodiments. Those skilled in the art know that without departing from the spirit and scope of the present invention, various changes or equivalent replacements can be made to these features and embodiments. In addition, under the teaching of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present invention.

Claims

1. A magnetic permeability modulation rotor, characterized in that: Capable of acting as a low-speed rotor for field-modulated motors and magnetic gears to transmit torque, including: A plurality of magnetic adjustment blocks are arranged at intervals in the circumferential direction to form a magnetic permeability modulation ring, and each of the magnetic adjustment blocks is formed by sequentially stacking silicon steel sheets along the width direction; The first rotor component and the second rotor component are respectively assembled to the two ends of the magnetic permeability modulation ring and both include an end ring assembly and an end pressure plate pressed against the end ring assembly; wherein each of the end ring assemblies includes an end plate and a plurality of stoppers assembled to the end plate; and each of the end pressure plates has a plurality of engaging grooves arranged along the circumferential direction and adapted to the number of the magnetic modulation blocks; The two end portions of each magnetic modulation block in the magnetic permeability modulation ring are respectively embedded in the two relatively embedded grooves and pressed against the end pressure plates through the corresponding end ring components to achieve axial limitation. At the same time, the corresponding limiting portions cooperate with the corresponding embedded grooves to respectively achieve circumferential limitation at the two end portions of the magnetic permeability modulation ring.

2. The rotor according to claim 1, characterized in that The inner side surface of each limiting portion and the side surface of the corresponding end pressure ring enclose a limiting space, and the two ends of each magnetic adjustment block are respectively clamped in the corresponding limiting space to prevent the two ends of the magnetic adjustment block from circumferential movement.

3. The rotor according to claim 2, characterized in that Each of the limiting portions comprises two limiting protrusions arranged facing each other, and the distance between the ends of each group of limiting protrusions away from the magnetic permeability modulation ring is greater than the distance between the ends of the same group of limiting protrusions close to the magnetic permeability modulation ring; The thickness of each magnetic adjustment block gradually increases when extending toward both ends near the end position, and the maximum thickness of the end of the magnetic adjustment block is less than the distance between the ends of each group of the limiting protrusions near the magnetic permeability modulation ring; The height of each of the limiting protrusions is greater than the length of the extension portion of the end of the magnetic adjustment block.

4. The rotor according to claim 3, characterized in that The projection shape of the end plate on the ground is annular, and a plurality of groups of the limiting protrusions are arranged along the circumferential direction of the end plate; each group of the limiting protrusions is respectively fixed to corresponding positions of the two edges of the end plate.

5. The rotor according to claim 1, characterized in that Each of the end ring assemblies also includes a plurality of pressing parts, and one end ring assembly is pressed against the corresponding end pressure plate by the plurality of pressing parts at the same time, while the other end ring assembly is also pressed against the corresponding end pressure plate by the plurality of pressing parts at the same time to achieve the two end ring assemblies pressing against the magnetic permeability modulation ring.

6. The rotor according to claim 5, characterized in that Each of the end plates is provided with a plurality of mounting holes matching the number of the pressing members, and each of the plurality of pressing members penetrates the corresponding mounting hole and simultaneously presses against the corresponding end pressing plate.

7. The rotor according to claim 6, characterized in that When each of the end plates is pressed against the corresponding end pressure plate by the pressing member, the end pressure plate is sleeved between the end plate and the limiting portion, and the engaging groove and the limiting portion correspond one to one in space; The width of the end pressure plate is smaller than the distance between the end of the limiting protrusion close to the magnetic permeability modulation ring, and the width of the fitting groove is slightly larger than the width of the end of the magnetic modulation block. The pressing member is a bolt member, and the length of the bolt member is required to ensure that the bolt head is tightly fitted with the end plate, and the bottom of the bolt rod is tightly fitted with the end pressure plate.

8. The rotor according to claim 1, characterized in that It also includes two limiting members, and one limiting member passes through the corresponding end plate and is inserted into the corresponding end pressure plate, while the other limiting member passes through the corresponding end plate and is inserted into the corresponding end pressure plate to prevent the circumferential movement of the end pressure ring and the magnetic adjustment block.

9. The rotor according to claim 8, characterized in that Each of the end plates and the end pressure plate is provided with a limiting hole, and the limiting hole on each end plate is connected with the limiting hole on the corresponding end pressure plate; Each of the limiting members passes through the limiting hole on the end plate and is inserted into the limiting hole on the corresponding end pressure plate; the limiting member is a pin.

10. The rotor according to any one of claims 1 to 9, characterized in that: It also includes a rotating shaft, and the rotating shaft is installed on the first rotor component or the second rotor component in a shrink-fit manner.

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