CN208778492U - Magnetic suspension bearing structure and magnetic suspension motor - Google Patents
Magnetic suspension bearing structure and magnetic suspension motor Download PDFInfo
- Publication number
- CN208778492U CN208778492U CN201821260240.5U CN201821260240U CN208778492U CN 208778492 U CN208778492 U CN 208778492U CN 201821260240 U CN201821260240 U CN 201821260240U CN 208778492 U CN208778492 U CN 208778492U
- Authority
- CN
- China
- Prior art keywords
- bearing structure
- radial ring
- magnetic bearing
- magnetic suspension
- section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
- 239000000725 suspension Substances 0.000 title claims abstract description 35
- 239000011324 bead Substances 0.000 claims description 20
- 230000014759 maintenance of location Effects 0.000 claims description 20
- 238000004804 winding Methods 0.000 claims description 17
- 230000002093 peripheral effect Effects 0.000 claims description 10
- 238000010276 construction Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 9
- 235000008331 Pinus X rigitaeda Nutrition 0.000 abstract description 2
- 235000011613 Pinus brutia Nutrition 0.000 abstract description 2
- 241000018646 Pinus brutia Species 0.000 abstract description 2
- 238000006073 displacement reaction Methods 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000007667 floating Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 241000145637 Lepturus Species 0.000 description 2
- 241001494479 Pecora Species 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005339 levitation Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The utility model provides a magnetic suspension bearing structure and magnetic suspension motor, magnetic suspension bearing structure includes casing and radial ring, the casing cover is established the periphery side of radial ring, just the casing with be formed with the block structure between the side that the radial ring was laminated mutually. The utility model provides a magnetic suspension bearing structure and magnetic suspension motor, under the prerequisite of the medial surface of guaranteeing the casing and the periphery side interference fit of radial ring, the realization is to casing and radial ring interference and the spacing cooperation at axial direction, effectively reduce small displacement high-frequency vibration range and intensity, reduce the disturbance to the rotor main shaft, effectively solve radial ring, the pine between stator core and the casing takes off the problem, can guarantee casing and radial ring, stator core is when adopting different materials to make, under the different condition of the linear thermal expansion coefficient of different materials, guarantee under the design temperature rise condition that radial ring fixes the assigned position at the casing, play locking guard action, effectively improve product reliability.
Description
Technical field
The utility model relates to magnetic suspension bearing processing technique field, especially a kind of magnetic bearing structure and magnetic suspension
Motor.
Background technique
Magnetic suspension bearing is to make rotor suspension making do not have Mechanical Contact between rotor and stator in aerial using magnetic force.
A kind of existing known magnetic suspension transverse bearing structure (such as Fig. 1), comprising: stator winding, stator core, radial ring and shell,
Interference fit state is between shell and radial ring, however the hardness of shell is lower than the hardness of radial ring, when shell shrink-on
Match or being dismounted for multiple times after, when so that shell generating plastic deformation, and shell and the magnitude of interference of radial ring is caused to be unable to satisfy, influence
Coaxial precision is assembled in magnetic suspension, is unfavorable for rotor suspension control, and then influence the reliability of magnetic bearing structure.
Utility model content
In order to solve the above-mentioned technical problem, the magnetcisuspension that degree is interference fitted between a kind of guarantee shell and radial ring is provided
Floating axle bearing structure and magnetic suspension motor.
A kind of magnetic bearing structure, including shell and radial ring, the shell are set in the peripheral side of the radial ring,
And snap-in structure is formed between the side that fits of the shell and the radial ring.
The shell includes path section and major diameter section, and the internal diameter of the path section is less than the internal diameter of the major diameter section, described
The end face of radial ring is connected in the path section, and all sides of the radial ring and the medial surface interference of the major diameter section are matched
It closes.
It is provided with limiting slot on all sides of the major diameter section, is provided with and the limit on all sides of the radial direction ring
The retention bead that slot matches, and the retention bead and the limiting slot form the snap-in structure.
The retention bead and the limiting slot are interference fitted.
The limiting slot is set to the junction of the path section and the major diameter section.
The retention bead charges into the end face interference fit after the limiting slot with the path section.
The groove depth of the limiting slot is sequentially increased along the direction far from the path section, and the height of the retention bead with
The limiting slot is correspondingly arranged.
The minimum value range of the groove depth of the limiting slot is 5-20 times of the magnitude of interference of the shell and the radial ring.
The magnetic bearing structure further includes stator winding and stator core, and the stator winding is fixed on the stator
On iron core, and the peripheral side of the stator core and the medial surface of the radial ring are equipped with.
The radial direction ring includes construction section and fixed section, and the end face of the stator winding is connected in the fixing end, and
The peripheral side of the stator winding and the medial surface of the construction section are equipped with.
Size of the retention bead on the axis direction of the stator core is greater than the fixed section along the stator
Size on the axis direction of iron core.
A kind of magnetic suspension motor, including above-mentioned magnetic bearing structure.
Magnetic bearing structure and magnetic suspension motor provided by the utility model, by being set respectively on shell and radial ring
It sets limiting slot and positive stop lug boss forms snap-in structure and has the advantages that
1, it under the premise of guaranteeing that the peripheral side of medial surface and radial ring of shell is interference fitted, realizes to shell and radial direction
The interference of ring in the axial direction and limit cooperation, while can guarantee that radial ring is in shell using limiting slot and positive stop lug boss
Designated position realizes once mounting in place, avoids the problem that being dismounted for multiple times；
2, thin tail sheep high-frequency vibration amplitude and intensity can be effectively reduced, reduce the disturbance to rotor main shaft, effectively solve
Problem is loosened between radial ring, stator core and shell；
3, can guarantee shell and radial ring, stator core when being made of different materials, the linear heat of different materials
In the case that the coefficient of expansion is different, guarantees that radial ring is fixed on the designated position of shell under the conditions of design temperature rise, give magnetcisuspension
The enough safe clearances of floating axle bearing structure, play locking protective effect, effectively improve product reliability.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of magnetic bearing structure in the prior art；
Fig. 2 is the magnetic suspension bearing knot of the embodiment of magnetic bearing structure provided by the utility model and magnetic suspension motor
The structural schematic diagram of structure；
Fig. 3 is the partial schematic diagram in Fig. 2 at A；
Fig. 4 is the section view of the shell of the embodiment of magnetic bearing structure provided by the utility model and magnetic suspension motor
Figure；
Fig. 5 is the section view of the radial ring of the embodiment of magnetic bearing structure provided by the utility model and magnetic suspension motor
Figure；
In figure:
1, shell；2, radial ring；11, path section；12, major diameter section；13, limiting slot；21, retention bead.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
The present invention will be further described in detail for example.It should be appreciated that specific embodiment described herein is only used for explaining this
Utility model is not used to limit the utility model.
Magnetic suspension application product is ultrahigh speed machine.Magnetic suspension bearing is its key components and parts, once magnetic suspension system
It breaking down, magnetic levitation product will be unable to starting and suspend, and it is unable to operate normally, causes production loss, however existing magnetic suspension
It is limited and is fixed only with interference fit between the shell 1 of bearing arrangement and radial ring 2, be unable to satisfy shell 1 and diameter
It is fixed to effective limit of the ring 2 in the case where temperature rise or deformation, and then is unable to satisfy the reliability of magnetic suspension bearing.
Magnetic bearing structure as shown in Figures 2 to 5, including shell 1 and radial ring 2, the shell 1 are set in described
The peripheral side of radial ring 2, and it is formed with snap-in structure between the side that fits of the shell 1 and the radial ring 2, in shell
Under the premise of being interference fitted between 1 and radial ring 2, is realized using snap-in structure and the axial direction between shell 1 and radial ring 2 is limited
Position, and then increase the reliability of magnetic bearing structure, while can guarantee at radial ring 2 using limiting slot 13 and positive stop lug boss
In the designated position of shell 1, realizes once mounting in place, avoid the problem that being dismounted for multiple times.
The shell 1 includes path section 11 and major diameter section 12, and the internal diameter of the path section 11 is less than the major diameter section 12
The end face of internal diameter, the radial direction ring 2 is connected in the path section 11, and all sides of the radial ring 2 and the major diameter section
12 medial surface interference fit namely the inside of the shell 1 form step-like structure, so as to guarantee that radial ring 2 cannot
It is mobile to 11 direction of path section.
It is provided with limiting slot 13 on all sides of the major diameter section 12, is provided on all sides of the radial direction ring 2 and institute
The retention bead 21 that limiting slot 13 matches is stated, and the retention bead 21 and the limiting slot 13 form the snap-in structure,
Using limiting slot 13 and retention bead 21, realizes to the axially position of shell 1 and radial ring 2, thin tail sheep height can be effectively reduced
Frequency vibration amplitude and intensity reduce the disturbance to rotor main shaft, effectively solve the pine between radial ring 2, stator core and shell 1
De- problem；
Can guarantee shell 1 and radial ring 2, stator core when being made of different materials, the linear heat of different materials
In the case that the coefficient of expansion is different, guarantees that radial ring 2 is fixed on the designated position of shell 1 under the conditions of design temperature rise, give magnetic
The enough safe clearances of suspension bearing structure, play locking protective effect, effectively improve product reliability.
The retention bead 21 is interference fitted with the limiting slot 13, is guaranteed between shell 1 and radial ring 2 in the axial direction
On limit reliability.
The limiting slot 13 is set to the junction of the path section 11 and the major diameter section 12, guarantees the entirety of shell 1
Intensity.
The retention bead 21 charges into the end face interference fit after the limiting slot 13 with the path section 11, namely limit
The end face of protrusion 21 can fit with the end face of path section 11, guarantee the cooperation intensity between shell 1 and radial ring 2.
The groove depth of the limiting slot 13 is sequentially increased along the direction far from the path section 11, and the retention bead 21
Height is correspondingly arranged with the limiting slot 13, guarantees still to be able to guarantee limit convex under the premise of shell 1 generates certain deformation
It plays 21 to be connected to inside limiting slot 13, guarantees the reliability of the cooperation between shell 1 and radial ring 2.
The minimum value range of the groove depth of the limiting slot 13 is the 5-20 of the shell 1 with the magnitude of interference of the radial ring 2
Times, it gives magnetic suspension bearing enough safe clearances, plays locking protective effect, improve product reliability.
The magnetic bearing structure further includes stator winding and stator core, and the stator winding is fixed on the stator
On iron core, and the peripheral side of the stator core and the medial surface of the radial ring 2 are equipped with.
The radial direction ring 2 includes construction section and fixed section, and the end face of the stator winding is connected in the fixing end, and
The peripheral side of the stator winding and the medial surface of the construction section are equipped with, and stator winding is enameled wire, predominantly magnetcisuspension
Floating transverse bearing provides electromagnetic force, and stator core is magnetic conduction silicon steel material, is mainly used for placing stator winding and magnetic circuit conducting
Effect, complete electromagnetic circuit is formed together with magnetic suspension bearing rotor, air gap.Radial ring 2 is permeability magnetic material (steel class),
It is the electromagnetic circuit important component of magnetic suspension transverse bearing.Non-permeable material is usually used in shell 1, and (aluminium alloy is non-
Permeability alloys material), play the role of fixed magnetic suspension bearing stator with connect motor stator casing.
Stator winding is fixed on stator core by coiling；Stator core external cylindrical surface passes through the inner circle with radial ring 2
The interference fit of cylinder is fixed on it on radial ring 2；Radial 2 external cylindrical surface of ring is matched by the inner cylinder face interference with shell 1
It closes, makes stator winding, stator core, radial ring 2, shell 1 become an entirety.
Size of the retention bead 21 on the axis direction of the stator core is greater than the fixed section along described fixed
Size on the axis direction of sub- iron core.
A kind of magnetic suspension motor, including above-mentioned magnetic bearing structure.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it should not be understood as limiting the scope of the patent of the utility model.It should be pointed out that for the common of this field
For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to
In the protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (12)
1. a kind of magnetic bearing structure, it is characterised in that: including shell (1) and radial ring (2), the shell (1) is set in
The peripheral side of the radial direction ring (2), and engaging is formed between the shell (1) and the radial direction ring (2) side for fitting
Structure.
2. magnetic bearing structure according to claim 1, it is characterised in that: the shell (1) includes path section (11)
With major diameter section (12), the internal diameter of the path section (11) is less than the internal diameter of the major diameter section (12), the end face of the radial direction ring (2)
It is connected on the path section (11), and all sides of the radial ring (2) and the medial surface interference of the major diameter section (12) are matched
It closes.
3. magnetic bearing structure according to claim 2, it is characterised in that: set on all sides of the major diameter section (12)
It is equipped with limiting slot (13), is provided with the retention bead matched with the limiting slot (13) on all sides of the radial direction ring (2)
(21), and the retention bead (21) and the limiting slot (13) form the snap-in structure.
4. magnetic bearing structure according to claim 3, it is characterised in that: the retention bead (21) and the limit
Slot (13) interference fit.
5. magnetic bearing structure according to claim 3, it is characterised in that: the limiting slot (13) is set to described small
The junction of diameter section (11) and the major diameter section (12).
6. magnetic bearing structure according to claim 5, it is characterised in that: the retention bead (21) charges into the limit
Position slot (13) is interference fitted with the end face of the path section (11) afterwards.
7. magnetic bearing structure according to claim 3, it is characterised in that: the groove depth of the limiting slot (13) is along separate
The direction of the path section (11) is sequentially increased, and the height of the retention bead (21) corresponding with the limiting slot (13) is set
It sets.
8. magnetic bearing structure according to claim 7, it is characterised in that: the minimum of the groove depth of the limiting slot (13)
It is worth 5-20 times that range is the shell (1) and the magnitude of interference of the radial ring (2).
9. magnetic bearing structure according to claim 3, it is characterised in that: the magnetic bearing structure further includes fixed
Sub- winding and stator core, the stator winding are fixed on the stator core, and the peripheral side of the stator core and institute
The medial surface for stating radial ring (2) is equipped with.
10. magnetic bearing structure according to claim 9, it is characterised in that: it is described radial direction ring (2) include construction section and
Fixed section, the end face of the stator winding are connected in the fixing end, and the peripheral side of the stator winding and the installation
The medial surface of section is equipped with.
11. magnetic bearing structure according to claim 10, it is characterised in that: the retention bead (21) is along described fixed
Size on the axis direction of sub- iron core is greater than size of the fixed section on the axis direction of the stator core.
12. a kind of magnetic suspension motor, it is characterised in that: including magnetic suspension bearing knot described in any one of claims 1 to 11
Structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821260240.5U CN208778492U (en) | 2018-08-06 | 2018-08-06 | Magnetic suspension bearing structure and magnetic suspension motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821260240.5U CN208778492U (en) | 2018-08-06 | 2018-08-06 | Magnetic suspension bearing structure and magnetic suspension motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208778492U true CN208778492U (en) | 2019-04-23 |
Family
ID=66155980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821260240.5U Withdrawn - After Issue CN208778492U (en) | 2018-08-06 | 2018-08-06 | Magnetic suspension bearing structure and magnetic suspension motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208778492U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058291A (en) * | 2018-08-06 | 2018-12-21 | 珠海格力电器股份有限公司 | Magnetic suspension bearing structure and magnetic suspension motor |
| CN112003418A (en) * | 2020-08-20 | 2020-11-27 | 珠海格力电器股份有限公司 | Magnetic suspension bearing, assembling method thereof and motor |
-
2018
- 2018-08-06 CN CN201821260240.5U patent/CN208778492U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058291A (en) * | 2018-08-06 | 2018-12-21 | 珠海格力电器股份有限公司 | Magnetic suspension bearing structure and magnetic suspension motor |
| CN109058291B (en) * | 2018-08-06 | 2024-06-14 | 珠海格力电器股份有限公司 | Magnetic suspension bearing structure and magnetic suspension motor |
| CN112003418A (en) * | 2020-08-20 | 2020-11-27 | 珠海格力电器股份有限公司 | Magnetic suspension bearing, assembling method thereof and motor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2728720B1 (en) | DC brushless motor with external rotor | |
| CN208778492U (en) | Magnetic suspension bearing structure and magnetic suspension motor | |
| EP3045752B1 (en) | Magnetic suspension bearing and centrifugal compressor | |
| CN107100932B (en) | Axial magnetic suspension bearing, magnetic suspension system and compressor | |
| US20170194063A1 (en) | Electromagnetic coil bobbin used in reactor as well as inner bobbin and outter shell | |
| CN109058291A (en) | Magnetic suspension bearing structure and magnetic suspension motor | |
| CN109058295A (en) | Magnetic suspension bearing anti-loosening protection structure and magnetic suspension bearing with same | |
| KR102485022B1 (en) | Rotor core assembly, rotor assembly and motor having the same | |
| WO2020073549A1 (en) | Motor rotor, motor, and air conditioner | |
| US2767339A (en) | Dynamoelectric rotor | |
| US9638246B2 (en) | Active magnetic bearing coils rolled in series | |
| CN201599258U (en) | Coupling structure between impeller and high-speed rotating shaft on high-speed centrifugal compressor | |
| CN204591767U (en) | Magnetic suspension seal arrangement in a kind of magnetic-suspension high-speed blower | |
| US10326332B2 (en) | Electric machine | |
| CN201918841U (en) | Motor | |
| CN203416064U (en) | Rotor structure of permanent-magnetic motor | |
| US10243435B2 (en) | Electric motor rotor optimized for great powers | |
| CN103595176A (en) | Motor damping vibration attenuation structure | |
| CN209164380U (en) | Magnetic suspension bearing anti-loosening protection structure and magnetic suspension bearing with same | |
| CN113864336B (en) | Radial magnetic suspension bearing and motor | |
| CN210034173U (en) | Magnetic suspension bearing, motor and compressor | |
| CN202721513U (en) | Novel stator iron core for closed refrigeration motor | |
| CN203830742U (en) | High speed electric spindle | |
| CN116317426B (en) | Variable magnetic circuit type exciting winding fastening structure | |
| CN203632444U (en) | Motor damping vibration attenuation structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190423 Effective date of abandoning: 20240614 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190423 Effective date of abandoning: 20240614 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |