CN221688395U - Magnetic steel-attached spacer sleeve for motor rotor - Google Patents
Magnetic steel-attached spacer sleeve for motor rotor Download PDFInfo
- Publication number
- CN221688395U CN221688395U CN202323548361.3U CN202323548361U CN221688395U CN 221688395 U CN221688395 U CN 221688395U CN 202323548361 U CN202323548361 U CN 202323548361U CN 221688395 U CN221688395 U CN 221688395U
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- Prior art keywords
- magnetic steel
- spacer sleeve
- sleeve
- rotor core
- spacer
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- 125000006850 spacer group Chemical group 0.000 title claims abstract description 54
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 76
- 239000010959 steel Substances 0.000 claims abstract description 76
- 238000000926 separation method Methods 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 description 7
- 238000003801 milling Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model discloses a magnetic steel-attached spacer sleeve for a motor rotor, which comprises a rotor core, a spacer sleeve and magnetic steel, wherein the rotor core is arranged on the rotor core; the spacer sleeve is of an integrated structure and comprises a sleeve ring and separation ribs, and the sleeve ring is respectively arranged at two ends of the separation ribs; the separation ribs are arranged around the lantern ring, and the intervals among the separation ribs are uniform; the spacer sleeve is connected to the rotor core, the end faces of the spacer ribs, the lantern ring and the rotor core are matched to form a plurality of evenly spaced connecting grooves, and the magnetic steel is connected to the connecting grooves, so that adjacent magnetic steel is limited to be attracted through the spacer ribs. The device has the advantages of simple structure, compact matching, reasonable design and the like; therefore, it is a product with excellent performance both technically and economically.
Description
[ Field of technology ]
The utility model mainly relates to a magnetic steel-attached spacer sleeve for a motor rotor.
[ Background Art ]
In the construction of the motor rotor, the magnetic steels are designed in a spaced arrangement and these are typically surface-mounted on the surface of the rotor or in the grooves. The design aims to improve the transmission efficiency of magnetic force lines and enhance the running performance of the motor by increasing the contact area between the magnetic steel and the rotor. Meanwhile, the magnetic steels which are arranged at intervals can also reduce mutual interference among the magnetic steels, and the running stability of the motor is improved.
Most of the existing surface-mounted permanent magnet motor rotor magnetic steel mounting methods are two methods of scribing or milling a magnetic steel groove on a rotor shaft. The scribing has the advantages of low cost, obvious production efficiency, easy pasting distortion and the risk of falling off in the later period, so that the motor performance is unstable; the magnetic steel milling groove has good magnetic steel attaching consistency, but has high groove milling cost and slow processing.
[ utility model ]
In order to solve at least one of the problems, the utility model provides a new structural scheme, and the motor rotor magnetic steel pasting spacer sleeve adopts the following technical scheme:
A motor rotor surface magnetic steel spacer sleeve comprises a rotor core, a spacer sleeve and magnetic steel;
The spacer sleeve is of an integrated structure and comprises a sleeve ring and separation ribs, and the sleeve ring is respectively arranged at two ends of the separation ribs; the separation ribs are arranged at intervals around the collar, and the intervals among the separation ribs are uniform;
The spacer sleeve is connected to the rotor core, the end faces of the spacer ribs, the lantern ring and the rotor core are matched to form a plurality of evenly spaced connecting grooves, and the magnetic steel is connected to the connecting grooves, so that adjacent magnetic steel is limited to be attracted through the spacer ribs.
Preferably, the wall thickness of the magnetic steel spacer sleeve is less than one third of the thickness of the magnetic steel.
Preferably, the rotor core has a sleeve joint portion, the end surface of the sleeve joint portion extends out of the flange, and the spacer sleeve is connected to the sleeve joint portion to enable the collar to abut against the flange so as to limit the position of the spacer sleeve.
Preferably, the rotor core is sleeved with a steel sleeve, and the magnetic steel is connected into the steel sleeve.
Compared with the background technology, the utility model has the beneficial effects that:
The utility model provides a magnetic steel spacer sleeve for a motor rotor, which is connected to a rotor core, so that the rotor core and the spacer sleeve are matched to form a connecting groove, magnetic steel is attached to the connecting groove to limit the installation position of the magnetic steel, the spacer sleeve assists the magnetic steel attachment, the magnetic steel can be fixed, and the mutual attraction of adjacent magnetic steel is prevented. After the structure is adopted, each part can be independently processed, so that the process complexity and the processing cost are reduced, and the production efficiency is improved; the connecting grooves are fixed in position and even in distance, the magnetic steel is attached to the connecting grooves in good consistency, the performance is stable, and the later falling risk is greatly reduced. The device has the advantages of simple structure, compact matching, reasonable design and the like; therefore, it is a product with excellent performance both technically and economically.
[ Description of the drawings ]
FIG. 1 is a schematic diagram of a motor rotor magnet steel spacer according to a preferred embodiment of the present utility model;
FIG. 2 is a schematic view of a rotor core with an intermediate spacer coupled thereto according to a preferred embodiment of the present utility model;
Fig. 3 is a schematic diagram of a magnetic steel spacer sleeve for a motor rotor according to a preferred embodiment of the present utility model.
[ Detailed description ] of the invention
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout.
In the present utility model, unless explicitly stated and limited otherwise, the terms "assembled," "connected," and "connected" are to be construed broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; can be directly connected or connected through an intermediate medium, and can be communicated with the inside of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
The technical scheme and the beneficial effects of the utility model are more clear and definite by further describing the specific embodiments of the utility model with reference to the drawings in the specification. The embodiments described below are exemplary by referring to the drawings for the purpose of illustrating the utility model and are not to be construed as limiting the utility model.
The preferred embodiments provided by the utility model are: as shown in fig. 1-3, a magnetic steel spacer sleeve is attached to a motor rotor, and comprises a rotor core 1, a spacer sleeve 2 and magnetic steel 3; the spacer sleeve 2 is of an integrated structure, the spacer sleeve 2 comprises a lantern ring 21 and separation ribs 22, and the lantern ring 21 is respectively arranged at two ends of the separation ribs 22; the thickness of the lantern ring 21 is consistent with that of the separation ribs 22, so that the end face of the spacing sleeve 2 is kept flat, the separation ribs 22 are arranged at intervals around the lantern ring 21, and the intervals between the separation ribs 22 are uniform.
The spacer sleeve 2 is connected with the rotor core 1, the end faces of the spacer ribs 22, the lantern ring 21 and the rotor core 1 are matched to form a plurality of evenly-spaced connecting grooves 23, the size of the magnetic steel 3 corresponds to the size of the connecting grooves 23, and the magnetic steel 3 is conveniently and compactly installed in the connecting grooves 23; the magnetic steel 3 is connected to the connecting groove 23, so that the adjacent magnetic steel 3 is limited to be attracted by the separation ribs 22. The rotor core 1 is sleeved with a steel sleeve 4, and the magnetic steel 3 is connected into the steel sleeve 4.
The rotor core 1 has a sleeve joint portion 11, a flange 12 extends from an end surface of the sleeve joint portion 11, and the spacer sleeve 2 is connected to the sleeve joint portion 11 so that the collar 21 abuts against the flange 12 to define a position of the spacer sleeve 2 mounted on the rotor core 1. The spacer sleeve 2 and the magnetic steel 3 are attached to the end face of the sleeving part 11, the wall thickness of the magnetic steel 3 spacer sleeve 2 is smaller than one third of the thickness of the magnetic steel 3, so that the magnetic steel 3 is exposed out of the end face of the spacer sleeve 2, and the coil is convenient to wind. The spacer sleeve 2 can be made of stainless steel or plastic. The magnetic steel 3 is used for assisting in attaching the magnetic steel 3, and can also fix the magnetic steel 3, so that the mutual attraction of the adjacent magnetic steels 3 is prevented. The spacer sleeve 2 limits the positions of the magnetic steels 3, the magnetic steels 3 interact with the stator rotating magnetic field to generate power, and the power is transmitted through the rotor core 1, so as to prevent the magnetic steels 3 from falling off, the rotor core 1 is sleeved with the steel sleeve 4 to abut the magnetic steels 3 on the connecting groove 23.
Most of the existing surface-mounted permanent magnet motor rotor magnetic steel mounting methods are two methods of scribing or milling a magnetic steel groove on a rotor shaft. The scribing has the advantages of low cost, obvious production efficiency, easy pasting distortion and the risk of falling off in the later period, so that the motor performance is unstable; the magnetic steel milling groove has good magnetic steel attaching consistency, but has high groove milling cost and slow processing.
For the convenience of magnetic steel installation, we provide a motor rotor surface-mounted magnetic steel spacer sleeve, the spacer sleeve 2 is connected to the rotor core 1, the rotor core 1 and the spacer sleeve 2 are matched to form a connecting groove 23, the magnetic steel 3 is attached to the connecting groove 23 to limit the installation position of the magnetic steel 3, the spacer sleeve 2 assists the magnetic steel 3 to attach, the magnetic steel 3 can be fixed, and the mutual attraction of the adjacent magnetic steels 3 is prevented. After the structure is adopted, each part can be independently processed, so that the process complexity and the processing cost are reduced, and the production efficiency is improved; the positions of the connecting grooves 23 are fixed, the intervals are uniform, the magnetic steel 3 is attached to the connecting grooves 23, the consistency is good, the performance is stable, and the later falling risk is greatly reduced.
In the description of the present utility model, a description of the terms "one embodiment," "preferred," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model, and a schematic representation of the terms described above in the present specification does not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
From the above description of the structure and principles, it should be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, but rather that modifications and substitutions using known techniques in the art on the basis of the present utility model fall within the scope of the present utility model, which is defined by the appended claims.
Claims (4)
1. The utility model provides a motor rotor pastes magnet steel spacer sleeve which characterized in that: the rotor comprises a rotor core, a spacer sleeve and magnetic steel;
The spacer sleeve is of an integrated structure and comprises a sleeve ring and separation ribs, and the sleeve ring is respectively arranged at two ends of the separation ribs; the separation ribs are arranged at intervals around the collar, and the intervals among the separation ribs are uniform;
The spacer sleeve is connected to the rotor core, the end faces of the spacer ribs, the lantern ring and the rotor core are matched to form a plurality of evenly spaced connecting grooves, and the magnetic steel is connected to the connecting grooves, so that adjacent magnetic steel is limited to be attracted through the spacer ribs.
2. The motor rotor-mounted magnetic steel spacer sleeve of claim 1, wherein: the wall thickness of the magnetic steel spacer sleeve is smaller than one third of the thickness of the magnetic steel.
3. The motor rotor-mounted magnetic steel spacer sleeve of claim 1, wherein: the rotor core is provided with a sleeving part, the end face of the sleeving part extends out of the flange, and the spacer sleeve is connected to the sleeving part to enable the lantern ring to be abutted against the flange so as to limit the position of the spacer sleeve.
4. The motor rotor-mounted magnetic steel spacer sleeve of claim 1, wherein: the rotor core is sleeved with a steel sleeve, and the magnetic steel is connected into the steel sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323548361.3U CN221688395U (en) | 2023-12-25 | 2023-12-25 | Magnetic steel-attached spacer sleeve for motor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323548361.3U CN221688395U (en) | 2023-12-25 | 2023-12-25 | Magnetic steel-attached spacer sleeve for motor rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221688395U true CN221688395U (en) | 2024-09-10 |
Family
ID=92618893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323548361.3U Active CN221688395U (en) | 2023-12-25 | 2023-12-25 | Magnetic steel-attached spacer sleeve for motor rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221688395U (en) |
-
2023
- 2023-12-25 CN CN202323548361.3U patent/CN221688395U/en active Active
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