CN216252408U - Rotating shaft for magnetic suspension motor - Google Patents
Rotating shaft for magnetic suspension motor Download PDFInfo
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- CN216252408U CN216252408U CN202122974425.0U CN202122974425U CN216252408U CN 216252408 U CN216252408 U CN 216252408U CN 202122974425 U CN202122974425 U CN 202122974425U CN 216252408 U CN216252408 U CN 216252408U
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- mandrel
- dabber
- convex part
- rotating shaft
- limiting
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Abstract
The utility model discloses a rotating shaft for a magnetic suspension motor, wherein a mandrel a is provided with a connecting shaft a, the mandrel b is provided with a connecting shaft b, the connecting shaft a is sleeved at one end of a connecting sleeve, the connecting shaft b is sleeved at the other end of the connecting sleeve, a magnetic steel sleeve is sleeved in the connecting sleeve, one end face of magnetic steel is abutted against the connecting shaft a, the other end face of the magnetic steel is abutted against the connecting shaft b, a limiting convex part is arranged on the end face of one end of the connecting sleeve connected with the mandrel a, a limiting clamping groove corresponding to the limiting convex part is arranged on the step face of the mandrel a, and the limiting convex part is clamped in the limiting clamping groove. Through spacing convex part card in spacing draw-in groove, increased the area of contact of the terminal surface of adapter sleeve and dabber b's step face, when dabber a and dabber b atress are unequal, dabber b can exert an external force to the adapter sleeve, through spacing inclined plane and cooperation back of outer face, can offset partly external force to make the terminal surface of adapter sleeve 30 and dabber b's step face be difficult for taking place deformation, thereby improved the life of pivot.
Description
Technical Field
The utility model relates to a magnetic suspension motor, in particular to a rotating shaft for the magnetic suspension motor.
Background
When a rotating shaft of the magnetic suspension motor works, the rotating shaft is in a suspension state under the action of magnetic force, and when the rotating shaft rotates, the friction force is very small and can be almost ignored, so that the rotating shaft is high in rotating speed and small in abrasion and is often used as a power source of supercharging equipment.
The inventor finds that the rotating shaft is assembled in a sectional mode, and when the rotating shaft works, the rotating shaft at one end of the impeller is subjected to wind resistance, so that forces applied to two ends of the rotating shaft are different, the rotating shaft has a tendency of deflecting, and the deflecting of the rotating shaft can restore the rotating shaft under magnetic force adjustment, but in the process, the connecting part close to one side of the impeller is most prone to stress concentration, causing the joint to deform.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides a rotating shaft for a magnetic suspension motor.
The purpose of the utility model is realized by the following technical scheme: the utility model provides a magnetic suspension motor is with pivot, including dabber an, dabber b, adapter sleeve and magnet steel, connecting axle an has on the dabber a, connecting axle b has on the dabber b, connecting axle a suit is in the one end of adapter sleeve, connecting axle b suit is at the other end of adapter sleeve, the magnetic steel suit is in the adapter sleeve, and a terminal surface and the butt of connecting axle a of magnet steel, another terminal surface and the butt of connecting axle b of magnet steel, be provided with spacing convex part on the terminal surface of connecting dabber an one end on the adapter sleeve, set up the spacing draw-in groove that corresponds with spacing convex part on the step face of dabber an, spacing convex part card is in spacing draw-in groove.
Optionally, the cross section of the limiting convex part is trapezoidal, the limiting convex part is provided with an abutting surface, an outer inclined surface and an inner inclined surface, the outer side of the abutting surface is connected with the outer inclined surface, and the inner side of the abutting surface is connected with the inner inclined surface.
Optionally, the limiting clamping groove is provided with a limiting inclined surface, the limiting convex part is clamped in the limiting clamping groove, the inner inclined surface is matched with the limiting inclined surface, and the abutting surface abuts against the bottom of the limiting clamping groove.
Optionally, a threaded hole is axially formed in the center of the end face of the mandrel a far away from one end of the connecting sleeve.
Optionally, a thrust disc is sleeved on one end of the mandrel b, which is far away from the connecting sleeve.
Optionally, the central through hole is formed in each of the mandrel a and the mandrel b.
The utility model has the following advantages: according to the rotating shaft for the magnetic suspension motor, the limiting convex part is clamped in the limiting clamping groove, so that the contact area between the end surface of the connecting sleeve and the step surface of the mandrel b is increased, when the mandrel a and the mandrel b are stressed unequally, the mandrel b can apply an external force to the connecting sleeve, the external force has a component force in the radial direction, and after the limiting inclined surface is matched with the external cooperation surface, a part of external force can be counteracted, so that the end surface of the connecting sleeve 30 and the step surface of the mandrel b are not easy to deform, and the service life of the rotating shaft is prolonged.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is a schematic structural view of the mandrel b;
FIG. 4 is a schematic cross-sectional view of FIG. 3;
FIG. 5 is a schematic cross-sectional view taken at I in FIG. 2;
FIG. 6 is a schematic structural view of a limiting protrusion;
FIG. 7 is a schematic structural view of a connecting sleeve
In the figure, 10-mandrel a, 20-mandrel b, 30-connecting sleeve, 40-magnetic steel, 50-thrust disc, 11-threaded hole, 12-connecting shaft a, 21-connecting shaft b, 22-limiting clamping groove, 23-limiting inclined plane, 31-limiting convex part, 32-inner inclined plane, 33-abutting surface and 34-outer inclined plane.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that are conventionally placed when the products of the present invention are used, or orientations or positional relationships that are conventionally understood by those skilled in the art, and are used only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element that is referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 and 2, a rotating shaft for a magnetic levitation motor includes a mandrel a10, a mandrel b20, a connecting sleeve 30 and a magnetic steel 40, a connecting shaft a12 is provided on the mandrel a10, as shown in fig. 3 and 4, a connecting shaft b21 is provided on the mandrel b20, a connecting shaft a12 is sleeved at one end of the connecting sleeve 30, a connecting shaft b is sleeved at the other end of the connecting sleeve 30, the magnetic steel 40 is sleeved in the connecting sleeve 30, one end surface of the magnetic steel 40 abuts against the connecting shaft a12, the other end surface of the magnetic steel 40 abuts against the connecting shaft b21, as shown in fig. 7, a limiting protrusion 31 is provided on an end surface of one end of the connecting sleeve 30 connected to the mandrel b20, a limiting slot 22 corresponding to the limiting protrusion 31 is provided on a step surface of the mandrel b20, as shown in fig. 5, the limiting protrusion 31 is clamped in the limiting slot 22, when assembling, the magnetic steel 40 is firstly sleeved in the connecting sleeve 30, the magnetic steel 40 is in interference fit with the connecting sleeve 30, then the connecting shaft a12 and the connecting shaft b21 are respectively sleeved in the connecting sleeve 30, the connecting shaft a12 and the connecting sleeve 30 are in interference fit, the connecting shaft b21 and the connecting sleeve 30 are in interference fit, and in the rotating process of the rotating shaft, because the rotating shaft is in a suspension state, the resistance applied in the circumferential direction is small, so that the mandrel a10 and the mandrel b20 are in interference fit with the connecting sleeve 30, thereby realizing the synchronous rotation of the mandrel a10, the mandrel b20, the magnetic steel 40 and the connecting sleeve 30, when the magnetic steel 40 rotates under the action of magnetic force, the mandrel a10, the mandrel b20 and the connecting sleeve 30 can be driven to rotate, in this embodiment, as shown in fig. 6, the section of the limit convex part 31 is trapezoidal, and the limit convex part 31 has an abutting surface 33, an outer inclined surface 34 and an inner inclined surface 32, the outer side of the abutting surface 33 is connected with the outer inclined surface 34, and the inner side of the abutting surface 33 is connected with the inner inclined surface 32, the limiting clamping groove 22 is provided with a limiting inclined surface 23, the limiting convex part 31 is clamped in the limiting clamping groove 22, the inner inclined surface 32 is matched with the limiting inclined surface 23, the abutting surface 33 abuts against the bottom of the limiting clamping groove 22, the contact area between the end surface of the connecting sleeve 30 and the step surface of the mandrel b20 is increased through clamping of the limiting convex part 31 and the limiting groove, when the stress of the mandrel a10 and the stress of the mandrel b20 are unequal, the mandrel b20 exerts an external force on the connecting sleeve 30, the external force has component force in the radial direction, and after the limiting inclined surface 23 is matched with the external cooperation surface, a part of the external force can be offset, so that the end surface of the connecting sleeve 30 and the step surface of the mandrel b20 are not prone to deformation, and the service life of the rotating shaft is prolonged.
In this embodiment, a threaded hole 11 is axially formed in the center of the end surface of the spindle a10 at an end far away from the connecting sleeve 30, and the impeller is sleeved on the spindle a10 and locked by a screw.
In this embodiment, the end of the core shaft b20 away from the connecting sleeve 30 is sleeved with the thrust disc 50, and the thrust disc 50 and the core shaft b20 are in interference fit.
In this embodiment, the central through holes are formed in the mandrel a10 and the mandrel b20, and when the rotating shaft is assembled, the central through holes can be exhausted, so that the assembly of the mandrel a10, the mandrel b20 and the connecting sleeve 30 is ensured.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the utility model can be made, and equivalents and modifications of some features of the utility model can be made without departing from the spirit and scope of the utility model.
Claims (6)
1. A rotating shaft for a magnetic suspension motor is characterized in that: including dabber an, dabber b, adapter sleeve and magnet steel, connecting axle an has on the dabber a, connecting axle b has on the dabber b, connecting axle a suit is in the one end of adapter sleeve, connecting axle b suit is in the other end of adapter sleeve, the magnet steel suit is in the adapter sleeve, just a terminal surface of magnet steel with connecting axle an butt, another terminal surface of magnet steel with connecting axle b butt, be provided with spacing convex part on the terminal surface of connecting dabber b one end on the adapter sleeve, set up on dabber b's the step face with spacing draw-in groove that spacing convex part corresponds, spacing convex part card is in spacing draw-in groove.
2. A rotating shaft for a magnetic levitation motor as claimed in claim 1, wherein: the cross section of the limiting convex part is trapezoidal, the limiting convex part is provided with an abutting surface, an outer inclined surface and an inner inclined surface, the outer side of the abutting surface is connected with the outer inclined surface, and the inner side of the abutting surface is connected with the inner inclined surface.
3. A rotating shaft for a magnetic levitation motor as claimed in claim 2, wherein: the limiting clamping groove is provided with a limiting inclined surface, the limiting convex part is clamped in the limiting clamping groove, the inner inclined surface is matched with the limiting inclined surface, and the abutting surface abuts against the bottom of the limiting clamping groove.
4. A rotating shaft for a magnetic levitation motor as claimed in claim 1, wherein: and a threaded hole is axially formed in the center of the end face of the mandrel a far away from one end of the connecting sleeve.
5. A rotating shaft for a magnetic levitation motor as claimed in claim 1, wherein: and a thrust disc is sleeved at one end of the mandrel b, which is far away from the connecting sleeve.
6. A rotating shaft for a magnetic levitation motor as claimed in claim 1, wherein: and central through holes are formed in the mandrel a and the mandrel b.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122974425.0U CN216252408U (en) | 2021-11-30 | 2021-11-30 | Rotating shaft for magnetic suspension motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122974425.0U CN216252408U (en) | 2021-11-30 | 2021-11-30 | Rotating shaft for magnetic suspension motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216252408U true CN216252408U (en) | 2022-04-08 |
Family
ID=80960655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122974425.0U Active CN216252408U (en) | 2021-11-30 | 2021-11-30 | Rotating shaft for magnetic suspension motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216252408U (en) |
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2021
- 2021-11-30 CN CN202122974425.0U patent/CN216252408U/en active Active
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