CN201696491U - Conical permanent magnetic suspended inner rotor hybrid magnetic bearing - Google Patents
Conical permanent magnetic suspended inner rotor hybrid magnetic bearing Download PDFInfo
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- CN201696491U CN201696491U CN2010201994793U CN201020199479U CN201696491U CN 201696491 U CN201696491 U CN 201696491U CN 2010201994793 U CN2010201994793 U CN 2010201994793U CN 201020199479 U CN201020199479 U CN 201020199479U CN 201696491 U CN201696491 U CN 201696491U
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Abstract
The utility model discloses a conical permanent magnetic suspended inner rotor hybrid magnetic bearing which comprises a stator assembly and a rotor assembly; a first rotor iron core and a second rotor iron core on the left end and the right end of the rotor assembly are conical, and are respectively sleeved with a first rotor permanent magnetic conical ring and a second rotor permanent magnetic conical ring; a first stator iron core and a second stator iron core on the left end and the right end of the stator assembly are respectively sleeved with a first stator permanent magnetic conical ring and a second stator permanent magnetic conical ring; all the stator permanent magnetic conical rings are matched with the shapes of the corresponding rotor permanent magnetic conical rings to form a first air gap, and the homo-magnetic poles between the two are arranged over against each other; and the central sections of the stator assembly and the rotor assembly are provided with magnetic circuit control units which comprise electromagnetic circuits, and the stator magnetic poles in the magnetic circuit control units are respectively distributed on the positive and the negative directions of an X axis and a Y axis. The conical permanent magnetic suspended inner rotor hybrid magnetic bearing realizes automatic stable adjustment on the axial direction and the radial direction through the control of different electromagnetic current and the repulsion effect among the permanent magnetic conical rings.
Description
Technical field
The utility model relates to a kind of non-contact magnetically suspension bearing, and the hybrid magnetic bearing of particularly a kind of cone type permanent magnet suspension internal rotor can be used as the contactless supporting part of rotating equipments such as wind wheel, driver and lathe.
Background technique
Present known magnetic suspension bearing divides the combined bearing of pure electromagnetic type and permanent magnet bias electromagnetic control type, no matter which kind of mode all needs to regulate rotor displacement by the electromagnetic field that the control electric current produces, and control system precision, speed, real-time etc. is required high, the control system complex structure, the cost height.In the structure of mixing type magnetic bearing, be separated from each other on radial direction magnetic bearing and the axial magnetic bearing space, adjusting radial force and adjusting axial force are separate, can not realize in the same magnetic circuit bidirectional modulation axial and radially is made that the volume of bearing is bigger than normal.
The model utility content
Task of the present utility model is to solve the above-mentioned deficiency of existing in prior technology, provides a kind of cone type permanent magnet suspension internal rotor hybrid magnetic bearing.
Technical solution of the present utility model is:
The hybrid magnetic bearing of a kind of cone type permanent magnet suspension internal rotor, comprise stator assembly and rotor assembly, the left side of rotor assembly, right two ends are respectively arranged with the first rotor iron core and second rotor iron core, the first rotor iron core and second rotor iron core are cone type, on the first rotor iron core, be equipped with the rotor first permanent magnetism circular cone ring, on second rotor iron core, be equipped with the rotor second permanent magnetism circular cone ring, the left side of stator assembly, right two ends are respectively arranged with first stator iron core and second stator iron core, be equipped with the stator first permanent magnetism circular cone ring on first stator iron core, stator first permanent magnetism circular cone ring and rotor first permanent magnetism circular cone annular shape are suitable, form first air gap between the two, and the like pole between the two is mutually opposed, be equipped with the stator second permanent magnetism circular cone ring on second stator iron core, stator second permanent magnetism circular cone ring and rotor second permanent magnetism circular cone annular shape are suitable, also form first air gap between the two, and the like pole between the two is mutually opposed; The central sections of stator assembly and rotor assembly is provided with the magnetic circuit control unit of being made up of electromagnetic circuit, be considered as coordinate plane at axial section or end face with magnetic bearing, under the situation of axle center as the plane coordinate system initial point with rotor assembly, the magnetic pole of the stator in the magnetic circuit control unit is distributed in respectively on X-axis and the positive negative direction of Y-axis.
The concrete mode that above-mentioned magnetic circuit control unit can be taked is: the central sections at the said stator assembly is provided with the 3rd stator iron core and the 4th stator iron core, the 3rd stator iron core and the 4th stator iron core are cylinder type, the 3rd stator iron core and the 4th stator iron core are made of four stator iron core branches respectively, stator iron core branch is provided with field coil, four stator iron core branches in each stator iron core are distributed on X-axis and the positive negative direction of Y-axis as four magnetic pole of the stator, are provided with outer magnetizer between a stator iron core branch in the 3rd stator iron core on the same direction and the stator iron core branch in the 4th stator iron core; Central sections at above-mentioned rotor assembly is provided with third trochanter iron core and fourth trochanter iron core, third trochanter iron core and fourth trochanter iron core are cylinder type, third trochanter iron core and fourth trochanter iron core are made of four rotor iron core branches respectively, four rotor iron core branches in each rotor iron core are distributed on X-axis and the positive negative direction of Y-axis, are provided with interior magnet case between a rotor iron core branch in rotor iron core branch in the third trochanter iron core on the same direction and the fourth trochanter iron core; Four rotor iron core branches in the third trochanter iron core are corresponding one by one with four stator iron core branches in the 3rd stator iron core, form second air gap between a pair of rotor iron core branch in corresponding and the stator iron core branch, four rotor iron core branches in the fourth trochanter iron core are also corresponding one by one with four stator iron core branches in the 4th stator iron core, also form second air gap between a pair of rotor iron core branch in corresponding and the stator iron core branch; Magnetism resistent ring outside between the central sections of said stator assembly and first stator iron core and second stator iron core, being provided with.
The said stator first permanent magnetism circular cone ring is mutually opposed with the N utmost point between the rotor first permanent magnetism circular cone ring, and the stator second permanent magnetism circular cone ring is mutually opposed with the N utmost point between the rotor second permanent magnetism circular cone ring.
Useful technique effect of the present utility model is:
By controlling different electromagnetic electric currents, can offset unequally loaded gravity, again by the repulsive force effect between stator permanent magnet circular cone ring and the rotor permanent magnetism circular cone ring, realize that it is in the Selfstabilizing adjusting that axially and directly makes progress, when the permanent magnetism regulating degree is not enough, also available electromagnetism replenishes, and this mode has been expanded the versatility of magnetic bearing.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples:
Fig. 1 is the structural principle schematic representation of a kind of mode of execution of the present utility model, shows axial cross section structure of the present utility model.
Fig. 2 shows structural representation for the A-A of Fig. 1 cuts open.
Embodiment
In conjunction with Fig. 1 and Fig. 2, the hybrid magnetic bearing of a kind of cone type permanent magnet suspension internal rotor comprises stator assembly and rotor assembly.The left end of rotor assembly is provided with the first rotor iron core 1, the first rotor iron core 1 is cone type, on the first rotor iron core 1, be equipped with the rotor first permanent magnetism circular cone ring 2, the right-hand member of rotor assembly is provided with second rotor iron core 3, second rotor iron core 3 is cone type, is equipped with the rotor second permanent magnetism circular cone ring 4 on second rotor iron core 3.The left end of stator assembly is provided with first stator iron core 5, first stator iron core 5 is equipped with the stator first permanent magnetism circular cone ring 6, the stator first permanent magnetism circular cone ring 6 is suitable with the rotor first permanent magnetism circular cone ring 2 shapes, form first air gap 7 between the two, the right-hand member of stator assembly is provided with second stator iron core 8, second stator iron core 8 is equipped with the stator second permanent magnetism circular cone ring 9, and the stator second permanent magnetism circular cone ring 9 is suitable with the rotor second permanent magnetism circular cone ring 4 shapes, also forms first air gap 7 between the two.The said stator first permanent magnetism circular cone ring 6 is mutually opposed with the N utmost point between the rotor first permanent magnetism circular cone ring 2, and the stator second permanent magnetism circular cone ring 9 is mutually opposed with the N utmost point between the rotor second permanent magnetism circular cone ring 4.The central sections of stator assembly and rotor assembly is provided with the magnetic circuit control unit of being made up of electromagnetic circuit, be considered as coordinate plane at axial section or end face with magnetic bearing, under the situation of axle center as the initial point of plane coordinate system with rotor assembly, the magnetic pole of the stator of magnetic circuit control unit is distributed in respectively on X-axis and the positive negative direction of Y-axis.
The more specifically technical approach that above-mentioned magnetic circuit control unit is taked is: the central sections at the said stator assembly is provided with the 3rd stator iron core and the 4th stator iron core, the 3rd stator iron core and the 4th stator iron core are cylinder type, the 3rd stator iron core is made of four stator iron core branches 10, stator iron core branch 10 is provided with field coil 11, four stator iron core branches 10 are distributed on X-axis and the positive negative direction of Y-axis as four magnetic pole of the stator, the 4th stator iron core is made of four stator iron core branches 12, stator iron core branch 12 is provided with field coil 13, four stator iron core branches 12 also are distributed on X-axis and the positive negative direction of Y-axis as four magnetic pole of the stator, are provided with outer magnetizer 14 between a stator iron core branch 10 in the 3rd stator iron core on the same direction and the stator iron core branch 12 in the 4th stator iron core.Central sections at above-mentioned rotor assembly is provided with third trochanter iron core and fourth trochanter iron core, third trochanter iron core and fourth trochanter iron core are cylinder type, the third trochanter iron core is made of four rotor iron core branches 15, four rotor iron core branches 15 are distributed on X-axis and the positive negative direction of Y-axis, the fourth trochanter iron core is made of four rotor iron core branches 16, four rotor iron core branches 16 are distributed on X-axis and the positive negative direction of Y-axis, magnet case 17 in being provided with between rotor iron core branch 16 in rotor iron core branch 15 in the third trochanter iron core on the same direction and the fourth trochanter iron core.Four rotor iron core branches 15 in the third trochanter iron core are corresponding one by one with four stator iron core branches 10 in the 3rd stator iron core, form second air gap 18 between a pair of rotor iron core branch in corresponding and the stator iron core branch, four rotor iron core branches 16 in the fourth trochanter iron core are also corresponding one by one with four stator iron core branches 12 in the 4th stator iron core, also form second air gap 18 between a pair of rotor iron core branch in corresponding and the stator iron core branch.Magnetism resistent ring 19 outside between the central sections of said stator assembly and first stator iron core and second stator iron core, being provided with.
Its working principle roughly is:
The electromagnetic field that utilizes field coil to produce is offset the gravity of rotor self, apply different control electric currents under the different loads, make working rotor under null-gravity state, and rotor permanent magnetism circular cone ring and the repulsion between the corresponding stator permanent magnet circular cone ring carry out the adjusting of axial displacement and radial displacement by cone type cross section countershaft.Permanent magnetic circuit in the aforesaid way can be divided into 2 the tunnel: (1) stator permanent magnet magnetic circuit: magnetic flux by permanent magnetism air gap (first air gap), stator iron core, is got back to the stator permanent magnet circular cone ring S utmost point from the stator permanent magnet circular cone ring N utmost point; (2) the rotor permanent magnetic circuit is: magnetic flux by permanent magnetism air gap (first air gap), rotor iron core, is got back to the rotor permanent magnetism circular cone ring S utmost point from the rotor permanent magnetism circular cone ring N utmost point.Producing magnetic flux with certain end Y-axis postive direction field coil energising is example, its electromagnetic circuit path can be selected: by the stator iron core branch of Y-axis postive direction stator iron core branch, Y-axis postive direction air gap (second air gap), rotor iron core branch, interior magnet case (ring), other three direction rotor iron core branches, other three direction air gaps (second air gap), other three directions, get back to the stator iron core branch on the Y-axis postive direction.
Claims (3)
1. hybrid magnetic bearing of cone type permanent magnet suspension internal rotor, comprise stator assembly and rotor assembly, it is characterized in that: the left side of described rotor assembly, right two ends are respectively arranged with the first rotor iron core and second rotor iron core, the first rotor iron core and second rotor iron core are cone type, on the first rotor iron core, be equipped with the rotor first permanent magnetism circular cone ring, on second rotor iron core, be equipped with the rotor second permanent magnetism circular cone ring, the left side of stator assembly, right two ends are respectively arranged with first stator iron core and second stator iron core, be equipped with the stator first permanent magnetism circular cone ring on first stator iron core, stator first permanent magnetism circular cone ring and rotor first permanent magnetism circular cone annular shape are suitable, form first air gap between the two, and the like pole between the two is mutually opposed, be equipped with the stator second permanent magnetism circular cone ring on second stator iron core, stator second permanent magnetism circular cone ring and rotor second permanent magnetism circular cone annular shape are suitable, also form first air gap between the two, and the like pole between the two is mutually opposed; The central sections of stator assembly and rotor assembly is provided with the magnetic circuit control unit of being made up of electromagnetic circuit, be considered as coordinate plane at axial section or end face with magnetic bearing, under the situation of axle center as the plane coordinate system initial point with rotor assembly, the magnetic pole of the stator in the magnetic circuit control unit is distributed in respectively on X-axis and the positive negative direction of Y-axis.
2. the hybrid magnetic bearing of cone type permanent magnet suspension internal rotor according to claim 1, it is characterized in that: the concrete mode that described magnetic circuit control unit can be taked is: the central sections at the said stator assembly is provided with the 3rd stator iron core and the 4th stator iron core, the 3rd stator iron core and the 4th stator iron core are cylinder type, the 3rd stator iron core and the 4th stator iron core are made of four stator iron core branches respectively, stator iron core branch is provided with field coil, four stator iron core branches in each stator iron core are distributed on X-axis and the positive negative direction of Y-axis as four magnetic pole of the stator, are provided with outer magnetizer between a stator iron core branch in the 3rd stator iron core on the same direction and the stator iron core branch in the 4th stator iron core; Central sections at above-mentioned rotor assembly is provided with third trochanter iron core and fourth trochanter iron core, third trochanter iron core and fourth trochanter iron core are cylinder type, third trochanter iron core and fourth trochanter iron core are made of four rotor iron core branches respectively, four rotor iron core branches in each rotor iron core are distributed on X-axis and the positive negative direction of Y-axis, are provided with interior magnet case between a rotor iron core branch in rotor iron core branch in the third trochanter iron core on the same direction and the fourth trochanter iron core; Four rotor iron core branches in the third trochanter iron core are corresponding one by one with four stator iron core branches in the 3rd stator iron core, form second air gap between a pair of rotor iron core branch in corresponding and the stator iron core branch, four rotor iron core branches in the fourth trochanter iron core are also corresponding one by one with four stator iron core branches in the 4th stator iron core, also form second air gap between a pair of rotor iron core branch in corresponding and the stator iron core branch; Magnetism resistent ring outside between the central sections of said stator assembly and first stator iron core and second stator iron core, being provided with.
3. the hybrid magnetic bearing of cone type permanent magnet suspension internal rotor according to claim 1 and 2, it is characterized in that: the described stator first permanent magnetism circular cone ring is mutually opposed with the N utmost point between the rotor first permanent magnetism circular cone ring, and the stator second permanent magnetism circular cone ring is mutually opposed with the N utmost point between the rotor second permanent magnetism circular cone ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201994793U CN201696491U (en) | 2010-05-24 | 2010-05-24 | Conical permanent magnetic suspended inner rotor hybrid magnetic bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201994793U CN201696491U (en) | 2010-05-24 | 2010-05-24 | Conical permanent magnetic suspended inner rotor hybrid magnetic bearing |
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| CN201696491U true CN201696491U (en) | 2011-01-05 |
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| CN2010201994793U Expired - Fee Related CN201696491U (en) | 2010-05-24 | 2010-05-24 | Conical permanent magnetic suspended inner rotor hybrid magnetic bearing |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322481A (en) * | 2011-08-31 | 2012-01-18 | 北京航空航天大学 | Radial decoupling taper magnetic bearing with three degree of freedom |
| CN102359490A (en) * | 2011-08-31 | 2012-02-22 | 北京航空航天大学 | Five-freedom radial decoupling conical magnetic bearing |
| CN103244558A (en) * | 2013-06-06 | 2013-08-14 | 唐与川 | Magnetic suspension bearing |
| CN104389793A (en) * | 2014-10-17 | 2015-03-04 | 山东科技大学 | Magnetic levitation axial flow impeller driving device |
| TWI484106B (en) * | 2012-05-04 | 2015-05-11 | 中原大學 | Hybrid type of magnet bearing system |
| CN105703520A (en) * | 2014-11-24 | 2016-06-22 | 雷虹桥 | Air bearing-assisted magnetic suspension bearing high speed motor |
| CN110462235A (en) * | 2017-04-01 | 2019-11-15 | 开利公司 | With the raised magnetic transverse bearing of magnetic flux |
-
2010
- 2010-05-24 CN CN2010201994793U patent/CN201696491U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322481A (en) * | 2011-08-31 | 2012-01-18 | 北京航空航天大学 | Radial decoupling taper magnetic bearing with three degree of freedom |
| CN102359490A (en) * | 2011-08-31 | 2012-02-22 | 北京航空航天大学 | Five-freedom radial decoupling conical magnetic bearing |
| CN102322481B (en) * | 2011-08-31 | 2013-03-20 | 北京航空航天大学 | Radial decoupling taper magnetic bearing with three degree of freedom |
| CN102359490B (en) * | 2011-08-31 | 2013-03-20 | 北京航空航天大学 | Five-freedom radial decoupling conical magnetic bearing |
| TWI484106B (en) * | 2012-05-04 | 2015-05-11 | 中原大學 | Hybrid type of magnet bearing system |
| CN103244558A (en) * | 2013-06-06 | 2013-08-14 | 唐与川 | Magnetic suspension bearing |
| CN104389793A (en) * | 2014-10-17 | 2015-03-04 | 山东科技大学 | Magnetic levitation axial flow impeller driving device |
| CN105703520A (en) * | 2014-11-24 | 2016-06-22 | 雷虹桥 | Air bearing-assisted magnetic suspension bearing high speed motor |
| CN105703520B (en) * | 2014-11-24 | 2018-11-20 | 雷虹桥 | Magnetic suspension bearing high-speed motor with air bearing auxiliary |
| CN110462235A (en) * | 2017-04-01 | 2019-11-15 | 开利公司 | With the raised magnetic transverse bearing of magnetic flux |
| US11047421B2 (en) | 2017-04-01 | 2021-06-29 | Carrier Corporation | Magnetic radial bearing with flux boost |
| CN110462235B (en) * | 2017-04-01 | 2021-08-03 | 开利公司 | Magnetic radial bearing with magnetic flux increase |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110105 Termination date: 20110524 |