CN201113721Y - Bearing-free magnetic levitation electric motor - Google Patents
Bearing-free magnetic levitation electric motor Download PDFInfo
- Publication number
- CN201113721Y CN201113721Y CNU2007200752884U CN200720075288U CN201113721Y CN 201113721 Y CN201113721 Y CN 201113721Y CN U2007200752884 U CNU2007200752884 U CN U2007200752884U CN 200720075288 U CN200720075288 U CN 200720075288U CN 201113721 Y CN201113721 Y CN 201113721Y
- Authority
- CN
- China
- Prior art keywords
- rotor
- assembly
- casing
- stator
- electric motor
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model discloses a bearingless magnetic suspension motor, comprising a casing, a stator assembly and a rotor assembly. The casing is formed by a front end cover and a back end cover being fixed together through fastening bolts; the stator assembly is formed by an armature iron core and an enameled wire winding, wherein an outgoing line of the stator assembly is electrically connected with a circuit of a controller; the rotor assembly is arranged inside the stator assembly and is rotated relative to the stator assembly in the axial direction, wherein the rotor assembly is formed by a rotor body and a rotor spindle, and an impeller inducer and wind blades are arranged at the outer end of the rotor spindle. The product has the advantages that through the principle of the same poles repelling each other, magnetic poles arranged in a certain order between the rotor of a permanent magnet and the stator of an excitation magnet 'suspends' the rotor, which avoids the contact and the abrasion between the rotor and the stator, meets the requirement of disusing bearings; the front end and the back end covers are used as the casing, thereby reducing the size of the electric motor, easily dissipating heat and simplifying the structure; the motor can be directly connected with a drive shaft of auxiliary machineries to reduce the noise produced by drive parts to the minimum degree, and is especially suitable for matching with sewing machinery.
Description
Technical field
The utility model relates to miniature motor and makes skill wood neck city, specifically refers to a kind of supporting magnetic suspension electric motor without bearings of industrial sewing machine that is used for.
Background technology
Be used for the matching used motor of industrial sewing machine at present, mostly adopt the brushless ac motor, carry out speed regulating control by a cassette controller, it can reach stepless speed regulation in 0～6000r/min scope, therefore also just omitted decelerator, made the designs simplification of motor, efficient improves.But returning apparatus has bearing between the armature spindle of this class motor and the axle sleeve of stator casing, so its structure also is not the simplest.The applicant is in the process of exploitation permanent magnetic brushless, discovery is between the stator of the rotor of permanent magnet and excitation body, can pass through certain arrangement, utilize the principle of same-sex repulsion of magnetic pole, stator is suspended, make between armature spindle and the stator casing contactlessly, thereby also just do not have friction, so can reach requirement without bearing.And the conversion of this arrangement and polarity can realize with the cassette controller of control motor.Similitude in view of magnetic bearing and motor stator structure, as magnetic bearing magnetic buoyancy winding is embedded in the stator slot, make the shared cover magnetic circuit of radial suspension magnetic field and rotating magnetic field, and can distinguish the rotation of independent control motor and the stable suspersion of rotating shaft, will the axial dimension of motor be reduced greatly.
The utility model content
The purpose of this utility model is: provides a kind of no bearing magnetic suspension motor to some machinery especially sewing device, friction and noise reduced, and compact conformation, and can realize large-scale speed governing.
The technical scheme of the utility model technical solution problem is: the utility model is made up of casing, field frame assembly and rotor assembly, described casing is formed with fastening bolt is fastening by front and rear cover, described field frame assembly is made of armature core, coil windings, and the lead-out wire of coil is electrically connected with the circuit of power line and controller; Be provided with respect to its axial rotor rotated assembly in the field frame assembly the inside, described rotor assembly is made of rotor block and armature spindle, is provided with fan blade and fan blade in the outer end of armature spindle.
Described rotor block comprises the iron core of the inside and is attached to some permanent-magnet steels of iron core outside, described armature spindle comprise hollow sleeve and be located in the sleeve to connecting bolt, this nut to the connecting bolt outer end is pushed down the outer transverse plane of fan blade, the radicle that is threaded of inner end is provided with the output shaft of internal thread, described sleeve links to each other by dog screw is fastening with output shaft, and the cylindrical of described output shaft is contained in the axis hole of the axle bed plate of being located at the casing front end housing.
The installation site of end cap before described casing and adapted machinery is fixed with trip bolt, and the power transmission shaft of output shaft and adapted machinery is linked.
Benefit of the present utility model is, utilize between the stator of the rotor of permanent magnet and excitation body principle of same-sex repulsion by the magnetic pole of arranging with certain rule, make stator " suspension ", realize contactless between rotor and the stator, nothing friction, so can reach requirement without bearing.Simultaneously the utility model is only made casing with front and rear cover, and the volume-diminished, heat radiation that make motor are easily.Fix thereby also just save support with installing and fixing bolt installation site direct and adapted machinery.Therefore designs simplification can directly be connected with the power transmission shaft of adapted machinery, and the noise that the transmission position is sent is reduced to minimum level.
Description of drawings
Fig. 1 is the longitudinal sectional view of the utility model structure;
Fig. 2 is the schematic diagram that the magnetic pole of rotor of the present utility model and stator distributes;
Each title and mark among the figure: 1. armature core, 2. install and fix bolt, 3. output shaft, 4. axle bed plate, 5. dog screw, 6. front end housing, 7. trip bolt, 8. sleeve, 9. rear end cap, 10. fan blade, 11. fan blades, 12. butt joint screws, 13. rotor cores, 14. magnet steel, 15. coil windings, 16. lead-out wires.
Embodiment
Below the utility model is described in further detail: as shown in Figure 1, form magnetic suspension electric motor without bearings by casing, field frame assembly and rotor assembly, structure is also uncomplicated.The casing of this motor described here is by front end housing 6, rear end cap 9 usefulness trip bolts 7 fastening forming in fact, field frame assembly is located between the two end cap, be made of armature core 1, enamelled wire coil windings 15, the lead-out wire 16 of coil is electrically connected with the circuit of electric power connection line and controller; Be provided with respect to its axial rotor rotated assembly in the field frame assembly the inside, described rotor assembly is made of rotor block and armature spindle, and rotor block comprises the rotor core 13 of the inside and is attached to the some permanent-magnet steels 14 of iron core outside; Described armature spindle comprise hollow sleeve 8 and be located in the sleeve 8 to connecting bolt 12, this nut to connecting bolt 12 outer ends is pushed down the outer transverse plane of fan blade 11, the radicle that is threaded of inner end is provided with the output shaft 3 of internal thread, described sleeve 8 and output shaft 3 are by 5 fastening linking to each other of dog screw, and the cylindrical of described output shaft 3 is contained in the axis hole of the axle bed plate 4 of being located at casing front end housing 6.Rear end at the cannulated sleeve 8 of described armature spindle is provided with a fan blade 11, and the inside of fan blade 11 is provided with fan blade 8.Fix with installing and fixing bolt 2 in the casing front end housing 4 and the installation site of adapted machinery, and the power transmission shaft of output shaft 3 with adapted machinery linked.During electric motor starting, become direct current from civil power by the alternating current via controller rectifier transformer that comes, carry out excitation through 15 pairs of stator armature iron cores of coil windings 1, make each circle armature core 1 form different magnetic poles in different time sections, same pole with the permanent-magnet steel 14 of rotor core 13 peripheries when driving the rotor rotation produces repulsive interaction, thereby rotor picking-up is become " suspension " state.Each circle armature core 1 of stator is regulated by controller in the change in polarity of different time sections, makes each circle armature core of stator 1 no matter can both remain corresponding identical with the polarity of the permanent-magnet steel 14 of rotor core 13 peripheral every utmost points under which kind of speed operation.
Claims (3)
1. magnetic suspension electric motor without bearings, form by casing, field frame assembly and rotor assembly, it is characterized in that described casing by front end housing (6) and rear end cap (9) with fastening the forming of fastening bolt (7), described field frame assembly is made of armature core (1), coil windings (15), the lead-out wire of coil (16) is electrically connected with the circuit of power line and controller, be provided with respect to its axial rotor rotated assembly in the field frame assembly the inside, described rotor assembly is made of rotor block and armature spindle, is provided with fan blade (11) and fan blade (10) in the outer end of armature spindle.
2. magnetic suspension electric motor without bearings as claimed in claim 1, it is characterized in that described rotor block comprises the iron core (13) of the inside and is attached to some permanent-magnet steels (14) outside the iron core (13), described armature spindle comprise hollow sleeve (8) and be located in the sleeve (8) to connecting bolt (13), this nut to connecting bolt (12) outer end is pushed down the outer transverse plane of fan blade (11), the radicle that is threaded of inner end is provided with the output shaft (3) of internal thread, sleeve (8) and output shaft (3) are by fastening linking to each other of dog screw (5), and the cylindrical of output shaft (3) is contained in the axis hole of the axle bed plate (4) of being located at casing front end housing (6).
3. magnetic suspension electric motor without bearings as claimed in claim 1 is characterized in that fixing with trip bolt (2) in the described casing front end housing (6) and the installation site of adapted machinery, and the power transmission shaft of output shaft (3) with adapted machinery is linked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200752884U CN201113721Y (en) | 2007-09-30 | 2007-09-30 | Bearing-free magnetic levitation electric motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200752884U CN201113721Y (en) | 2007-09-30 | 2007-09-30 | Bearing-free magnetic levitation electric motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201113721Y true CN201113721Y (en) | 2008-09-10 |
Family
ID=39965466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200752884U Expired - Lifetime CN201113721Y (en) | 2007-09-30 | 2007-09-30 | Bearing-free magnetic levitation electric motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201113721Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108964341A (en) * | 2018-08-31 | 2018-12-07 | 佛山善能机电科技有限公司 | A kind of spindle motor device |
-
2007
- 2007-09-30 CN CNU2007200752884U patent/CN201113721Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108964341A (en) * | 2018-08-31 | 2018-12-07 | 佛山善能机电科技有限公司 | A kind of spindle motor device |
| CN108964341B (en) * | 2018-08-31 | 2024-05-28 | 佛山善能机电科技有限公司 | Spindle motor device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101207309A (en) | High speed magnetic suspension permanent magnet motor without bearing | |
| US8841809B2 (en) | Synchronous brushless multipolar machine having immobile armature and field windings | |
| CN104993637A (en) | Magnetic levitation induction motor electric bicycle driving system | |
| WO2009124491A1 (en) | A motor with auxiliary funtion of power generation | |
| CN201733166U (en) | Motor for driving industrial sewing machine through direct connection with spindle thereof | |
| CN101557150A (en) | Permanent magnet synchronous direct-drive wind power generator without iron core | |
| CN102780314A (en) | Direct drive type outer rotor rotation driving device | |
| CN203255652U (en) | Built-in type electric roller directly driven by doubly-salient brushless motor | |
| CN101931297A (en) | Disk-type magneto generator of statorless iron core | |
| CN201054537Y (en) | AC power supply brushless DC suspending fan electromotor | |
| CN201113721Y (en) | Bearing-free magnetic levitation electric motor | |
| CN101202522A (en) | Magnetic suspension electric motor without bearings | |
| CN201122867Y (en) | High speed magnetic suspension non-bearing permanent magnet motor | |
| CN107332389A (en) | A kind of blower motor and hair-dryer | |
| CN100370684C (en) | Radial coreless permanent magnet motor | |
| CN207353982U (en) | A kind of blower motor and hair-dryer | |
| CN204497904U (en) | Magnetically levitated flywheel motor | |
| CN203645515U (en) | External rotor permanent magnet synchronous motor of industrial big fan | |
| CN206533262U (en) | A kind of simplex winding DC motor without bearing and brush | |
| CN201191796Y (en) | Brushless excitation system embedded synchronous electric motor | |
| CN211296515U (en) | Novel permanent magnet synchronous motor | |
| CN207353983U (en) | A kind of blower motor and hair-dryer | |
| CN103023245A (en) | Double-bearing support double-stator switch magnetic-resistance wind power generator and unit system thereof | |
| CN103078460A (en) | Fixed-shaft-supporting double-air-gap direct-drive switch magnetic resistance wind driven generator and unit system thereof | |
| CN1455497A (en) | Rotor-exciting commutatorless direct current machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG ZHONGBANG ELECTR-MECHANICAL SCIENCE + TEC Free format text: FORMER OWNER: REN YIBIAO Effective date: 20110325 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 315502 ZHONGBANG CORPORATION, NO.120-1, WULING ROAD, XIKOU TOWN, FENGHUA CITY, ZHEJIANG PROVINCE TO: 317000 NO. 181, QIYIHE ROAD, JIANGNAN SUBDISTRICT, LINHAI CITY, ZHEJIANG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110325 Address after: 317000 No. 71 River Road, Jiangnan street, Linhai City, Zhejiang, 181 Patentee after: Zhejiang Zobow Mechanical and Electrical Tech Co., Ltd. Address before: 315502 Zhejiang province Fenghua City Xikou Zhen Wu Ling Lu Zhongbang, No. 120-1 Patentee before: Ren Yibiao |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080910 |