CN106787417A - A kind of magnetic suspension motor rotor structure - Google Patents
A kind of magnetic suspension motor rotor structure Download PDFInfo
- Publication number
- CN106787417A CN106787417A CN201611177603.4A CN201611177603A CN106787417A CN 106787417 A CN106787417 A CN 106787417A CN 201611177603 A CN201611177603 A CN 201611177603A CN 106787417 A CN106787417 A CN 106787417A
- Authority
- CN
- China
- Prior art keywords
- magnetic bearing
- rotor
- motor
- cooling fan
- impeller
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/08—Structural association with bearings
- H02K7/09—Structural association with bearings with magnetic bearings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/161—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotary shaft at both ends of the rotor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention discloses a kind of magnetic suspension motor rotor structure, including impeller, rotor, upper magnetic bearing, upper cooling fan, coil of stator of motor, lower cooling fan, lower magnetic bearing, upper magnetic bearing sensor and lower magnetic bearing sensor, on described, lower magnetic bearing sensor is respectively arranged on, on lower magnetic bearing, upper magnetic bearing, lower leaf is sheathed on rotor on coil of stator of motor and lower magnetic bearing, upper cooling fan and lower cooling fan are both secured on rotor, and upper cooling fan is located between upper magnetic bearing and coil of stator of motor, lower cooling fan is located between coil of stator of motor and lower magnetic bearing, impeller is fixed on the top of rotor.Good cooling results of the present invention, it is easy to disassemble, it is easy for installation.
Description
Technical field：
The present invention relates to a kind of magnetic suspension motor rotor structure.
Background technology：
The conventional type of cooling of current magnetic suspension motor is free air cooling, the cooling of liquid set and evaporation cooling.Air is cooled down
Major Natural air intake, rotor, motor stator and upper and lower magnetic bearing are cooled down using one-level cooling fan, and cooling effect is general；
The cooling of liquid set, evaporation cooling need to increase cooling line, cooling effectiveness highest, but process cumbersome in motor housing, difficult in maintenance；Mesh
Preceding magnetic suspension motor impeller of rotor is installed, dismounting is coordinated using rotor and impeller, the structure of deflection cone locking, easily produces operation
The phenomenon of locking, certain difficulty is caused for assembling, maintenance activity afterwards.
Therefore, it is necessory to be improved to solve the deficiency of prior art to prior art.
The content of the invention：
The present invention is to provide a kind of magnetic suspension motor rotor structure to solve the problems, such as above-mentioned prior art.
The technical solution adopted in the present invention has：A kind of magnetic suspension motor rotor structure, including impeller, rotor, upper magnetic axis
Hold, upper cooling fan, coil of stator of motor, lower cooling fan, lower magnetic bearing, upper magnetic bearing sensor and lower magnetic bearing sensing
Device, the upper and lower magnetic bearing sensor is respectively arranged on upper and lower magnetic bearing, upper magnetic bearing, coil of stator of motor and lower magnetic axis
Hold lower leaf to be sheathed on rotor, upper cooling fan and lower cooling fan are both secured on rotor, and upper cooling fan is located at
Between upper magnetic bearing and coil of stator of motor, lower cooling fan is located between coil of stator of motor and lower magnetic bearing, and impeller is fixed
In the top of rotor.
Further, the top of the rotor is provided with positioning cams, and the bottom of impeller is provided with and the positioning cams
The concave part being adapted.
Further, it is fixedly connected by screw rod and nut between the impeller and rotor, the screw rod passes through impeller simultaneously
It is threaded on the positioning cams of rotor, nut thread is connected to the top of screw rod, and impeller is closely against on rotor.
Further, the circumferential wall of the screw rod is provided with limiting stand, and the limiting stand is connected on positioning cams.
The present invention has the advantages that：
(1) during present invention work, cooling wind enters from bottom, and be pumped into for cold wind by lower end cooling fan, by lower magnetic bearing
And after lower magnetic bearing sensor, coil of stator of motor and rotor are blowed to, when cold wind is by coil of stator of motor and upper magnetic bearing
Between, a part of cold wind is discharged by the heat dissipation wind channel on casing with hot blast, while the pressure of upper end is larger, wind be difficult to continue to
On, at this moment continue to be pressurized by upper cooling fan and blow cold wind upwards, magnetic bearing and upper magnetic bearing sensor in cooling so that
Magnetic suspension motor rotor runs under the environment of safety；
(2) the connection reliability between impeller and rotor, easy to disassemble, easy for installation.
Brief description of the drawings：
Fig. 1 is structure chart of the present invention.
Fig. 2 is the attachment structure figure between impeller and rotor in the present invention.
Specific embodiment：
The present invention is further illustrated below in conjunction with the accompanying drawings.
As shown in figure 1, the present invention discloses a kind of magnetic suspension motor rotor structure, including impeller 1, rotor 2, upper magnetic bearing 3,
Upper cooling fan 4, coil of stator of motor 5, lower cooling fan 6, lower magnetic bearing 7, upper magnetic bearing sensor and lower magnetic bearing are passed
Sensor, upper magnetic bearing sensor and lower magnetic bearing sensor are respectively arranged on magnetic bearing 3 and lower magnetic bearing 7, upper magnetic bearing 3,
Lower leaf is sheathed on rotor 2 on coil of stator of motor 5 and lower magnetic bearing 7, and upper cooling fan 4 and lower cooling fan 6 are solid
Due on rotor 2, and upper cooling fan 4 is located between upper magnetic bearing 3 and coil of stator of motor 5, and lower cooling fan 6 is located at motor
Between stator coil 5 and lower magnetic bearing 7, impeller 1 is fixed on the top of rotor 2.
As Fig. 2, the top of the rotor 2 in the present invention are provided with positioning cams 21, the bottom of impeller 1 is provided with and positioning convex
The concave part 11 that portion 21 is adapted.
It is fixedly connected by screw rod 8 and nut 9 between impeller 1 and rotor 2, screw rod 8 passes through impeller 1 and is threaded in and turns
On the positioning cams 21 of son, nut 9 is threaded in the top of screw rod 8, and impeller 1 is closely against on rotor 2.In screw rod 8
Top be provided with inner hexagon spanner notch.
Limiting stand 81 is provided with the circumferential wall of screw rod 8, the limiting stand 81 is connected on positioning cams 21.Impeller 1 with
Connection reliability between rotor 2, it is easy to disassemble, it is easy for installation.During assembling, quickly impeller 1 can be pressed into using torque spanner
In the mating surface of rotor 2, quick assembling is realized；When needing repair demolition, screw rod is reversely twisted using Allen wrench, made on screw rod
Limiting stand 81 oppresses impeller lower surface, so as to realize the purpose of fast quick-detach.
During work, cooling wind enters from bottom, and be pumped into for cold wind by lower end cooling fan 6, by lower magnetic bearing 7 and lower magnetic
After bearing sensor, coil of stator of motor and rotor are blowed to, when cold wind is by between coil of stator of motor and upper magnetic bearing, one
Cold wind is divided to be discharged with hot blast by the heat dissipation wind channel on casing, while the pressure of upper end is larger, wind is difficult to continue up, and at this moment leads to
Cross the continuation of cooling fan 4 and be pressurized and blow cold wind upwards, magnetic bearing and upper magnetic bearing sensor in cooling so that magnetic suspension electricity
Machine rotor runs under the environment of safety.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, some improvement can also be made under the premise without departing from the principles of the invention, these improvement also should be regarded as of the invention
Protection domain.
Claims (4)
1. a kind of magnetic suspension motor rotor structure, it is characterised in that：Including impeller (1), rotor (2), upper magnetic bearing (3), upper cold
But fan (4), coil of stator of motor (5), lower cooling fan (6), lower magnetic bearing (7), upper magnetic bearing sensor and lower magnetic axis
Sensor is held, the upper and lower magnetic bearing sensor is respectively arranged on upper and lower magnetic bearing, upper magnetic bearing (3), coil of stator of motor
(5) lower leaf is sheathed on rotor (2) and on lower magnetic bearing (7), and upper cooling fan (4) and lower cooling fan (6) are fixed
In on rotor (2), and upper cooling fan (4) is between upper magnetic bearing (3) and coil of stator of motor (5), lower cooling fan (6)
Between coil of stator of motor (5) and lower magnetic bearing (7), impeller (1) is fixed on the top of rotor (2).
2. magnetic suspension motor rotor structure as claimed in claim 1, it is characterised in that：The top of the rotor (2) is provided with fixed
Position lug boss (21), the bottom of impeller (1) is provided with the concave part (11) being adapted with the positioning cams (21).
3. magnetic suspension motor rotor structure as claimed in claim 2, it is characterised in that：Between the impeller (1) and rotor (2)
It is fixedly connected with nut (9) by screw rod (8), the screw rod (8) is through impeller (1) and is threaded in the positioning convex of rotor
In portion (21), nut (9) is threaded in the top of screw rod (8), and impeller (1) is closely against on rotor (2).
4. magnetic suspension motor rotor structure as claimed in claim 3, it is characterised in that：Set in the circumferential wall of the screw rod (8)
Limited location platform (81), the limiting stand (81) is connected on positioning cams (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611177603.4A CN106787417A (en) | 2016-12-19 | 2016-12-19 | A kind of magnetic suspension motor rotor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611177603.4A CN106787417A (en) | 2016-12-19 | 2016-12-19 | A kind of magnetic suspension motor rotor structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106787417A true CN106787417A (en) | 2017-05-31 |
Family
ID=58890213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611177603.4A Pending CN106787417A (en) | 2016-12-19 | 2016-12-19 | A kind of magnetic suspension motor rotor structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106787417A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107643172A (en) * | 2017-10-30 | 2018-01-30 | 南京磁谷科技有限公司 | A kind of mounting structure of upper angular contact bearing in overspeed test bench main frame |
| CN107968526A (en) * | 2017-12-28 | 2018-04-27 | 南京磁谷科技有限公司 | A kind of enclosed cooling fan structure of magnetic suspension motor rotor |
| CN107968527A (en) * | 2017-12-28 | 2018-04-27 | 南京磁谷科技有限公司 | A kind of cooling structure of magnetic suspension motor rotor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102611360A (en) * | 2012-03-08 | 2012-07-25 | 南京航空航天大学 | Five-freedom-degree magnetic suspension motor with brake function and control method thereof |
| CN103441612A (en) * | 2013-09-02 | 2013-12-11 | 南京磁谷科技有限公司 | Magnetic suspension permanent-magnet synchronous high-power high-speed draught fan |
| CN105090110A (en) * | 2015-09-11 | 2015-11-25 | 南京磁谷科技有限公司 | Impeller assembly of high-speed centrifugal blower |
| CN206294014U (en) * | 2016-12-19 | 2017-06-30 | 南京磁谷科技有限公司 | A kind of magnetic suspension motor rotor structure |
-
2016
- 2016-12-19 CN CN201611177603.4A patent/CN106787417A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102611360A (en) * | 2012-03-08 | 2012-07-25 | 南京航空航天大学 | Five-freedom-degree magnetic suspension motor with brake function and control method thereof |
| CN103441612A (en) * | 2013-09-02 | 2013-12-11 | 南京磁谷科技有限公司 | Magnetic suspension permanent-magnet synchronous high-power high-speed draught fan |
| CN105090110A (en) * | 2015-09-11 | 2015-11-25 | 南京磁谷科技有限公司 | Impeller assembly of high-speed centrifugal blower |
| CN206294014U (en) * | 2016-12-19 | 2017-06-30 | 南京磁谷科技有限公司 | A kind of magnetic suspension motor rotor structure |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107643172A (en) * | 2017-10-30 | 2018-01-30 | 南京磁谷科技有限公司 | A kind of mounting structure of upper angular contact bearing in overspeed test bench main frame |
| CN107643172B (en) * | 2017-10-30 | 2023-11-24 | 南京磁谷科技有限公司 | Mounting structure of upper angular contact bearing in overspeed test stand host |
| CN107968526A (en) * | 2017-12-28 | 2018-04-27 | 南京磁谷科技有限公司 | A kind of enclosed cooling fan structure of magnetic suspension motor rotor |
| CN107968527A (en) * | 2017-12-28 | 2018-04-27 | 南京磁谷科技有限公司 | A kind of cooling structure of magnetic suspension motor rotor |
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