A rotation-stopping structure of a magnetic levitation motor

Abstract

The application discloses a rotation-stopping structure of a magnetic suspension motor and relates to the field of rotation-stopping structures of magnetic suspension motors. The rotation-stopping structure comprises a magnetic suspension motor body, a stator and a rotor arranged in the magnetic suspension motor body, a rotation-stopping clamping column penetrating through the outer surface of one end of the magnetic suspension motor body close to an output end, a centrifugal impeller fixedly sleeved with one end of the rotor, a clamping hole for inserting the rotation-stopping clamping column arranged on the surface of the end of the rotor close to the centrifugal impeller, and a mounting rack plate fixedly connected with the outer surface of the magnetic suspension motor body and slidably sleeved with the rotation-stopping clamping column. The driving top block is arranged, the clockwise rotation of the driving top block is utilized to insert the lower end of the rotation-stopping clamping column into the clamping hole of the end of the rotor, so that the rotation-stopping effect is realized, and the counterclockwise rotation of the driving top block is utilized to prevent the lower end of the rotation-stopping clamping column from contacting the outer surface of the end of the rotor, so that the resetting effect of the rotation-stopping clamping column is realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of magnetic suspension motor rotation stopping structure, more particularly, the present application relates to a kind of magnetic suspension motor rotation stopping structure. BACKGROUND

[0002] Magnetic suspension motor, stator and rotor contactless operation special motor, according to magnetic field force, is divided into attraction type and repulsion type;According to the degree of magnetic field coupling, it is divided into suspension force and driving force independent control type and suspension force and driving force coupling control type, according to the structure of stator and rotor, it is divided into magnetic suspension rotary motor and magnetic suspension linear motor, for magnetic suspension train, magnetic suspension bearing and magnetic suspension artificial heart blood pump and other occasions.

[0003] But in actual use, most of the magnetic suspension motor is stopped by power failure after use, but due to inertia, it is easy to cause unstable and timely motor rotation. SUMMARY

[0004] In order to overcome the above-mentioned defects of the prior art, the embodiments of the present application provide a kind of magnetic suspension motor rotation stopping structure to solve the problems raised in the above background art.

[0005] To achieve the above object, the present application provides the following technical scheme: a kind of magnetic suspension motor rotation stopping structure, including magnetic suspension motor main body and the stator and rotor arranged in its interior, the outer surface of the one end of the magnetic suspension motor main body is close to output end and is provided with rotation stopping column, one end of the rotor is fixedly sleeved with centrifugal impeller, the surface of the one end of the rotor close to centrifugal impeller is provided with the clamping hole for inserting rotation stopping column, the rotation stopping column is slidably sleeved with the mounting rack plate fixedly connected with the outer surface of the magnetic suspension motor main body, the upper surface of the mounting rack plate is fixedly connected with the fixed clamping plate at both ends, one of the fixed clamping plate is fixedly connected with the driving motor, the output end of the driving motor is fixedly connected with the extension shaft rotatably connected with the other fixed clamping plate at one end, the outer surface of the extension shaft is fixedly sleeved with the driving top block for driving rotation stopping column to slide up and down.

[0006] Preferably, the upper end of the rotation stopping column is close to the side surface of the driving top block and is provided with a rotating groove, the inner wall of the upper end of the rotating groove is fixedly connected with the limiting baffle for limiting the rotation of the driving top block.

[0007] Preferably, the upper surface of the mounting rack plate is provided with an insertion hole between the two fixed clamping plates, the rotation stopping column is provided in the insertion hole, the rotation stopping column is sleeved with the reset spring fixedly connected with the lower surface of the upper end of the mounting rack plate.

[0008] Preferably, the lower end of the reset spring is fixedly connected with a sliding sealing plate slidingly sleeved on the rotation-stopping clamping column, a limiting fixed plate located below the sliding sealing plate is fixedly sleeved on the rotation-stopping clamping column, and the gap between the sliding sealing plate and the limiting fixed plate forms a limiting groove for limiting the magnetic suspension motor body.

[0009] Preferably, the lower end of the rotation-stopping clamping column is in a curved outward convex hemispherical shape, the bottom surface of the mounting rack plate is in an upward concave arc shape, the bottom of the mounting rack plate is fixedly installed on the outer surface of the magnetic suspension motor body through screws, one end of the rotor is sleeved with a magnetic suspension bearing, and the clamping hole is arranged between the magnetic suspension bearing and the centrifugal impeller.

[0010] Technical effects and advantages of the present application:

[0011] Compared with the prior art, by arranging the driving top block, the end of the driving top block is in contact with and pressed against the upper surface of the limiting baffle by clockwise rotation of the driving top block, the rotation-stopping clamping column is lowered, the lower end of the rotation-stopping clamping column is inserted into the clamping hole at the end of the rotor, and the rotation-stopping effect is achieved; by counterclockwise rotation of the driving top block, the end of the driving top block is pushed against the bottom of the limiting baffle, the rotation-stopping clamping column is raised, the lower end of the rotation-stopping clamping column is not in contact with the outer surface of the end of the rotor, and the reset effect of the rotation-stopping clamping column is achieved.

[0012] Compared with the prior art, by arranging the reset spring, the sliding sealing plate is kept close to the limiting fixed plate by the reset spring, the rotation-stopping clamping column is limited on the magnetic suspension motor body without external force, the relative position between the rotation-stopping clamping column and the magnetic suspension motor body is stable, the lower surface of the sliding sealing plate is more closely attached to the sliding connection position of the rotation-stopping clamping column 7 on the magnetic suspension motor body, and the sealing effect within a certain range is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0014] Figure 2 It is a schematic diagram of the mounting rack plate structure of the present application.

[0015] Figure 3 It is a schematic diagram of the mounting rack plate structure of the present application. Figure 2 It is a schematic diagram of the mounting rack plate structure of the present application.

[0016] Figure 4 It is a schematic diagram of the mounting rack plate structure of the present application.

[0017] The attached figures are labeled as follows: 1. Main body of the magnetic levitation motor; 2. Mounting bracket; 3. Fixing clamp; 4. Drive motor; 5. Extension shaft; 7. Anti-rotation pin; 8. Limiting fixing plate; 9. Sliding sealing plate; 10. Return spring; 11. Insertion hole; 12. Rotary groove; 13. Drive top block; 14. Limiting baffle; 15. Centrifugal impeller; 16. Snap-fit ​​hole; 17. Magnetic levitation bearing; 18. Stator; 19. Rotor. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0019] As attached Figures 1-4 The diagram illustrates an anti-rotation structure for a magnetic levitation motor, comprising a magnetic levitation motor body 1 and a stator 18 and a rotor 19 disposed within it. An anti-rotation locking pin 7 is inserted through the outer surface of the magnetic levitation motor body 1 near its output end. A centrifugal impeller 15 is fixedly sleeved onto one end of the rotor 19. A locking hole 16 for inserting the anti-rotation locking pin 7 is provided on the surface of the rotor 19 near the centrifugal impeller 15. A mounting bracket plate 2, fixedly connected to the outer surface of the magnetic levitation motor body 1, is slidably sleeved on the anti-rotation locking pin 7. Fixed clamping plates 3 are fixedly connected to both ends of the upper surface of the mounting bracket plate 2. A drive motor 4 is fixedly connected to one of the fixed clamping plates 3, and one end of the drive motor 4 is fixedly connected to the other... The extended shaft 5 is rotatably connected to the fixed clamping plate 3. The outer surface of the extended shaft 5 is fixedly sleeved with a driving top block 13 for driving the anti-rotation pin 7 to slide up and down. So that, firstly, by rotating the driving top block 13 counterclockwise, its end will push against the bottom of the limiting baffle 14 and cause the anti-rotation pin 7 to move upward, so that the lower end of the anti-rotation pin 7 will not contact the outer surface of the rotor 19 end, and thus will not affect the rotation of the rotor 19. Then, by rotating clockwise, the end of the driving top block 13 will finally rotate and contact the upper surface of the limiting baffle 14 and cause the anti-rotation pin 7 to move downward, so that the lower end of the anti-rotation pin 7 is inserted into the locking hole 16 at the end of the rotor 19, thereby achieving the anti-rotation function.

[0020] In a preferred embodiment, as shown in the appendix Figure 1 Appendix Figure 2 and attached Figure 3 As shown, a rotating groove 12 is formed on the upper surface of the anti-rotation pin 7 near the drive top block 13. A limiting baffle 14 for limiting the rotation of the drive top block 13 is fixedly connected to the inner wall of the upper end of the rotating groove 12, so as to facilitate the rotation of the drive top block 13 when it is in the position shown in the attached figure. Figure 3When in the middle state, it rotates counterclockwise, and the lower end of the drive top block 13 rotates into the rotating groove 12. The drive top block 13 continues to rotate, and its end will push against the bottom of the limiting baffle 14, causing the anti-rotation pin 7 to move upward, so that the lower end of the anti-rotation pin 7 will not contact the outer surface of the rotor 19 end, and thus will not affect the rotation of the rotor 19. When the anti-rotation pin 7 needs to perform the anti-rotation function, the drive motor 4 is started, and the output shaft of the drive motor 4 drives the extension rotating shaft 5 to rotate, thereby causing the drive top block 13 on the extension rotating shaft 5 to rotate. When the drive top block 13 is in the attached state, Figure 3 When in the middle state, it rotates clockwise, so that the end of the drive top block 13 eventually rotates and contacts the upper surface of the limiting baffle 14, causing the anti-rotation pin 7 to move down, so that the lower end of the anti-rotation pin 7 is inserted into the locking hole 16 at the end of the rotor 19, thereby achieving the anti-rotation function.

[0021] In a preferred embodiment, as shown in the appendix Figure 1 Appendix Figure 2 and attached Figure 3 As shown, an insertion hole 11 is provided on the upper surface of the mounting plate 2 between the two fixed clamping plates 3. An anti-rotation pin 7 passes through the insertion hole 11. A return spring 10, whose upper end is fixedly connected to the lower surface of the upper end of the mounting plate 2, is sleeved on the anti-rotation pin 7. A sliding sealing plate 9, which is slidably sleeved on the anti-rotation pin 7, is fixedly sleeved on the anti-rotation pin 7. A limiting fixing plate 8, located below the sliding sealing plate 9, is fixedly sleeved on the anti-rotation pin 7. The gap between the sliding sealing plate 9 and the limiting fixing plate 8 forms a limiting groove for restricting the magnetic levitation motor body 1, so that... The function of the return spring 10 is to ensure the principle between the sliding sealing plate 9 and the upper end of the mounting plate 2, so that the sliding sealing plate 9 is kept close to the limiting fixing plate 8 by the action of the return spring 10. This achieves the goal of restricting the anti-rotation pin 7 to the magnetic levitation motor body 1 without external force, keeping the relative position of the anti-rotation pin 7 and the magnetic levitation motor body 1 stable. Furthermore, due to the action of the return spring 10, the lower surface of the sliding sealing plate 9 is more closely fitted to the sliding connection point of the anti-rotation pin 7 on the magnetic levitation motor body 1, achieving a sealing effect within a certain range.

[0022] In a preferred embodiment, as shown in the appendix Figure 1 Appendix Figure 2 and attached Figure 3 As shown, the lower end of the anti-rotation pin 7 is a curved, outwardly convex hemispherical shape, and the bottom surface of the mounting plate 2 is an upwardly concave arc shape. The bottom of the mounting plate 2 is fixed to the outer surface of the magnetic levitation motor body 1 by screws. One end of the rotor 19 is fitted with a magnetic levitation bearing 17, and the snap-fit ​​hole 16 is set between the magnetic levitation bearing 17 and the centrifugal impeller 15.

[0023] Working principle of this invention: When this device is in use, starting the drive motor 4 causes the output shaft of the drive motor 4 to drive the extension shaft 5 to rotate, thereby causing the drive top block 13 on the extension shaft 5 to rotate. When the drive top block 13 is in the attached position... Figure 3 When in the middle state, it rotates counterclockwise, and the lower end of the drive top block 13 rotates into the rotating groove 12. The drive top block 13 continues to rotate, and its end will push against the bottom of the limiting baffle 14, causing the anti-rotation pin 7 to move upward, so that the lower end of the anti-rotation pin 7 will not contact the outer surface of the rotor 19 end, and thus will not affect the rotation of the rotor 19. When the anti-rotation pin 7 needs to perform the anti-rotation function, the drive motor 4 is started, and the output shaft of the drive motor 4 drives the extension rotating shaft 5 to rotate, thereby causing the drive top block 13 on the extension rotating shaft 5 to rotate. When the drive top block 13 is in the attached state, Figure 3 When in the middle state, it rotates clockwise, so that the end of the drive top block 13 eventually rotates and contacts the upper surface of the limiting baffle 14, causing the anti-rotation pin 7 to move down, so that the lower end of the anti-rotation pin 7 is inserted into the locking hole 16 at the end of the rotor 19, thereby achieving the anti-rotation effect. The function of the return spring 10 is to ensure the principle between the sliding sealing plate 9 and the upper end of the mounting plate 2, so that the sliding sealing plate 9 is kept close to the limiting fixing plate 8 by the action of the return spring 10, thereby achieving the restriction of the anti-rotation pin 7 on the magnetic levitation motor body 1 without the action of external force, keeping the relative position of the anti-rotation pin 7 and the magnetic levitation motor body 1 stable. Moreover, due to the action of the return spring 10, the lower surface of the sliding sealing plate 9 is more closely fitted to the sliding connection point of the anti-rotation pin 7 on the magnetic levitation motor body 1, achieving a sealing effect within a certain range.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A de-rotation structure for a magnetic levitation motor, comprising a magnetic levitation motor body (1) and a stator (18) and a rotor (19) disposed therein, characterized in that: The magnetic levitation motor body (1) has an anti-rotation pin (7) on the outer surface of one end near the output end. One end of the rotor (19) is fixedly sleeved with a centrifugal impeller (15). The surface of the rotor (19) near the centrifugal impeller (15) has a snap-fit ​​hole (16) for inserting the anti-rotation pin (7). The anti-rotation pin (7) is slidably sleeved with a mounting plate (2) fixedly connected to the outer surface of the magnetic levitation motor body (1). Both ends of the upper surface of the mounting plate (2) are fixedly connected with fixing plates (3). One of the fixing plates (3) is fixedly connected with a drive motor (4). The output end of the drive motor (4) is fixedly connected with an extension shaft (5) that is rotatably connected to the other fixing plate (3). The outer surface of the extension shaft (5) is fixedly sleeved with a drive top block (13) for driving the anti-rotation pin (7) to slide up and down.

2. The anti-rotation structure of a magnetic levitation motor according to claim 1, characterized in that: The upper end of the anti-rotation pin (7) is provided with a rotating groove (12) on the side surface near the driving top block (13), and a limiting baffle (14) for limiting the rotation of the driving top block (13) is fixedly connected to the inner wall of the upper end of the rotating groove (12).

3. The anti-rotation structure of a magnetic levitation motor according to claim 2, characterized in that: The upper surface of the mounting plate (2) is provided with a plug hole (11) between two fixed clamps (3). The anti-rotation pin (7) is inserted into the plug hole (11). A return spring (10) is sleeved on the anti-rotation pin (7) and fixedly connected to the lower surface of the upper end of the mounting plate (2).

4. The anti-rotation structure of a magnetic levitation motor according to claim 3, characterized in that: The lower end of the reset spring (10) is fixedly connected to a sliding sealing plate (9) that is slidably sleeved on the anti-rotation pin (7). A limiting fixing plate (8) located below the sliding sealing plate (9) is fixedly sleeved on the anti-rotation pin (7). The gap between the sliding sealing plate (9) and the limiting fixing plate (8) forms a limiting groove for limiting the magnetic levitation motor body (1).

5. The anti-rotation structure of a magnetic levitation motor according to claim 4, characterized in that: The lower end of the anti-rotation pin (7) is a curved, outwardly convex hemispherical shape, and the bottom surface of the mounting plate (2) is an upwardly concave arc shape. The bottom of the mounting plate (2) is fixedly installed on the outer surface of the magnetic levitation motor body (1) by screws. One end of the rotor (19) is fitted with a magnetic levitation bearing (17), and the snap-fit ​​hole (16) is located between the magnetic levitation bearing (17) and the centrifugal impeller (15).

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