CN205663758U - Three degree of freedom magnetic bearings of permanent magnetism biasing - Google Patents
Three degree of freedom magnetic bearings of permanent magnetism biasing Download PDFInfo
- Publication number
- CN205663758U CN205663758U CN201620548201.XU CN201620548201U CN205663758U CN 205663758 U CN205663758 U CN 205663758U CN 201620548201 U CN201620548201 U CN 201620548201U CN 205663758 U CN205663758 U CN 205663758U
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- iron core
- permanent magnet
- control
- axial
- axially
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- 230000005389 magnetism Effects 0.000 title abstract 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 74
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 23
- 238000004804 winding Methods 0.000 claims abstract description 22
- 230000004907 flux Effects 0.000 claims description 56
- 230000001276 controlling effect Effects 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 3
- 150000002910 rare earth metals Chemical class 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 2
- 239000000696 magnetic material Substances 0.000 claims description 2
- 239000000725 suspension Substances 0.000 abstract description 7
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001105 regulatory Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 229910000529 magnetic ferrite Inorganic materials 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Abstract
The utility model discloses a three degree of freedom magnetic bearings of permanent magnetism biasing, rotor core include axial parts, radial division, the stator includes right side iron core bridge, left side iron core bridge, right side annular permanent magnet, left side annular permanent magnet, right side axial control iron core, left side axial control iron core, be provided with radial control iron core between left side annular permanent magnet, the right side annular permanent magnet, the coiling has radial control winding on its stator tooth, right side axial control iron core, left side axial control iron core and radially control and be provided with the right side between the iron core respectively and divide magnetism aluminium ring, left side to divide magnetism aluminium ring, right side axial control iron core, left side axial control iron core all are E shape structure, difference coiling axial control winding in the stator slot, and the circular telegram of axial control winding produces left and right side control magnetic flow, the utility model discloses effectively having solved the not enough of three present degree of freedom magnetic bearings, providing a control, make and assemble simply, axial and radially control the magnetic flow and all do not pass through the permanent magnet can produce bigger axial and radial suspension force's low -power consumption three degree of freedom magnetism bearing arrangement.
Description
Technical field
This utility model relates to bearing mnanufacture technical field, be specifically related to a kind of control, manufacture and assembly simple, axially and
Radially control magnetic flux all without permanent magnet, the low power consumption permanent magnet biased Three Degree Of Freedom of bigger axially and radially suspending power can be produced
Magnetic bearing.
Background technology
Magnetic bearing is to utilize the electromagnetic force between stator and rotor by rotor suspension in space, makes not have between stator and rotor
A kind of novel high-performance bearing of Mechanical Contact.Owing to there is not Mechanical Contact between stator and rotor, so magnetic suspension bearing supports
Suspension system rotor can reach the highest operating rotating speed, and have that mechanical abrasion, energy consumption be low, life-span length, without lubrication,
The advantage such as pollution-free, is particularly suitable at a high speed or ultrahigh speed directly drives field.
At present, magnetic bearing is divided into following three kinds according to the mode that magnetic force provides:, active magnetic bearings, biased electrical miscarry
Raw bias magnetic field, the control magnetic flux controlling electric current generation is overlapped mutually with biasing magnetic flux, thus produces controlled suspending power, this kind
Magnetic bearing volume, weight and power consumption are the biggest；, passive magnetic bearing, suspending power is provided by permanent magnet completely, required control
Device is simple, and suspension power consumption is little, but rigidity and damping are the least, typically apply to support the most in one direction object or
Alleviate the load acting on traditional bearing；, hybrid magnetic bearing, be the electromagnetism using permanent magnet material to substitute in active magnetic bearings
Ferrum produces bias magnetic field, and controlling electric current only provides balanced load or the control magnetic flux of interference, greatly reduces the merit of magnetic bearing
Rate is lost, and reduces the volume of magnetic bearing, alleviates its weight, and improve bearing capacity.
At present, different according to permanent-magnetic biased axial magnetic bearing version, three kinds can be divided into,, permanent magnet be placed in turn
In son, its installation difficulty is caused to increase, the lifting of rotor strength its rotating speed of lower limit；, that suspension rotor is placed in by magnetic bearing is fixed
The both sides of son, axial length is long, and critical speed is low；, magnetic bearing axially controls magnetic flux through permanent magnet, be bright to permanent magnet
Aobvious demagnetizing effect, leakage field is relatively big, and the magnetic resistance of permanent magnet is big, and needed for resulting in identical axial suspension power, electric current is big, merit
Consumption height, its applied field field is restricted.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of permanent magnet bias Three Degree Of Freedom magnetic bearing, this utility model
Efficiently solve the deficiency of existing Three Degree Of Freedom magnetic bearing, it is provided that a kind of control, manufacture and assembly simply, axially and radially control
Magnetic flux all without permanent magnet, can produce the low-power consumption Three Degree Of Freedom magnetic bearing structure of bigger axially and radially suspending power.
This utility model is achieved through the following technical solutions:
A kind of permanent magnet bias Three Degree Of Freedom magnetic bearing, including stator, rotor core (8), it is characterised in that: described rotor ferrum
Core (8) includes axial component, radial component；Described stator includes the axial component along rotor core (11), and with rotor core
(11) radial component is symmetrical centre, the most symmetrically arranged right side iron core bridge (1), left side iron core bridge (5)；Right circular is forever
Magnet (3), left side annular permanent magnet (4)；Right side axially controls iron core (6), left side axially controls iron core (9)；Left side annular is forever
It is provided with between magnet (4), right circular permanent magnet (3) and radially controls iron core (15), its stator tooth is wound with radially control
Winding (14)；Right side axially controls iron core (6), left side axially controls iron core (9) and radially controls to set respectively between iron core (15)
Be equipped with right side point magnetic aluminum ring (2), magnetic aluminum ring (16) is divided in left side；Right side axially controls iron core (6), left side axially controls iron core (9)
All in E shape structure, in stator slot, coiling axially controls winding (7) respectively, axially controls winding (7) energising and produces left and right side control
Magnetic flux processed (29,23).
The further Technological improvement plan of this utility model is:
Described right side axially controls iron core (6), left side axially controls the suction that iron core (9) is arranged respectively by upper-lower position
The control disk (12,10) that disk (13,11) and centre position are arranged is constituted, and axially controls winding (7) and is wound in suction circle
Between dish (13,11) and control disk (12,10).
The further Technological improvement plan of this utility model is:
Gas length between described control disk (12,10) and rotor core (8) radial component is more than suction disk
Gas length between (13,11) and rotor core (8) radial component, and suction disk (13,11) is with rotor core (8) radially
Gas length between part axially controls iron core (6) less than right side, left side axially controls iron core (9) and rotor core (8) axle
Gas length between part.
The further Technological improvement plan of this utility model is:
Described right circular permanent magnet (3), left side annular permanent magnet (4) are the annular permanent magnet of axial charging, for magnetic
Bearing provides radial and axial biasing magnetic flux.
The further Technological improvement plan of this utility model is:
Described right side divides magnetic aluminum ring (2), left side to divide magnetic aluminum ring (16) to be made up of monoblock aluminium, it is ensured that permanent magnet had both produced footpath
Produce again axialy offset magnetic flux to biasing magnetic flux, and reduce leakage field.
The further Technological improvement plan of this utility model is:
Described right side iron core bridge (1), left side iron core bridge (5), right side axially controls iron core (6), left side axially controls iron core
(9), rotor core (8), radially control iron core (15) all use the material with good the most axially and radially magnetic property to make.
The further Technological improvement plan of this utility model is:
Described right circular permanent magnet (3), left side annular permanent magnet (4) are rare earth permanent-magnetic material and make.
This utility model compared with prior art, has a following obvious advantage:
One, the permanent magnet bias Three Degree Of Freedom magnetic bearing that the utility model proposes, is by the annular permanent magnet of two axial magnetizeds
Body provides respectively and axially and radially biases magnetic flux, and radial and axial control winding produces radial and axial control magnetic flux, footpath respectively
To biasing magnetic flux and control magnetic flux, axial biasing magnetic flux and control magnetic flux interact, it is ensured that stator and rotor are radial and axial
Between air gap uniform, it is achieved rotor radial and axial stable suspersion；
Two, this utility model uses and not only produces radial offset magnetic flux but also produce axialy offset magnetic every magnetic aluminum environmental protection card permanent magnet
Logical, and reduce leakage field；Left side axially controls iron core and right side axially controls iron core and all makes E type structure, in suction disk and control
Embed between rounding dish and control winding.Radially control magnetic flux through radially controlling the downside of iron core, downside radially working gas gap, turning
The radial component of sub-iron core, upside working gas gap, the upside radially controlling iron core and circumference iron core form closed path；Axially control
Magnetic flux processed, merely through controlling disk and suction disk, forms closed-loop path, axially and radially controls magnetic flux all big without magnetic resistance
Permanent magnet, have that can to produce bigger suspending power, low-power consumption, control simple and the advantage such as be easily achieved；
Three, this utility model can be widely used for flywheel energy storage, various high-speed machine tool spindle motor and canned pump class, is centrifuged
The fields such as machine, compressor, high-speed small-size hard disk drive.
Accompanying drawing explanation
Fig. 1 is this utility model permanent magnet bias Three Degree Of Freedom magnetic bearing structural representation；
Fig. 2 is this utility model permanent magnet bias Three Degree Of Freedom magnetic bearing magnetic circuit schematic diagram.
Detailed description of the invention
This utility model based on principle be: left side annular permanent magnet 4 produce on the left of bias magnetic flux 28, from left side annular forever
Setting out in the N pole of magnet 4, left side divides magnetic aluminum ring 16 to be divided into two parts, i.e. left side axialy offset magnetic flux 25 and left radial biasing
Magnetic flux 24, left side axialy offset magnetic flux 25 axially controls iron core 9 through left side and is divided into two parts, i.e. magnetic flux 26 and magnetic flux 27, from
Axial working gas gap, the radial component of rotor core 8 on the left of suction disk 11 entrance, and left radial biasing magnetic flux 24 is through footpath
To controlling iron core 15, radially working gas gap, entering the radial component of rotor core 8, then both are together through rotor core 8
Axial component, left side iron core bridge air gap, left side iron core bridge 5, return to the S pole of left side annular permanent magnet 4, forms closed magnetic circuit.Right
Side annular permanent magnet 3 biases magnetic flux 18 on the right side of producing, and from the N pole of right circular permanent magnet 3, right side divides 2 points of magnetic aluminum ring
For two parts, i.e. right side axialy offset magnetic flux 19 and right radial biasing magnetic flux 17, right side axialy offset magnetic flux 19 is through right side
Axially control iron core 6 and be divided into two parts, i.e. magnetic flux 20 and magnetic flux 21, on the right side of suction disk 13 enters axially working gas gap, turn
The radial component of sub-iron core 8, and right radial biasing magnetic flux 17 is through radially controlling iron core 15, radially working gas gap, enters and turns
The radial component of sub-iron core 8, then both are together through the axial component of rotor core 8, right side iron core bridge air gap, right side iron core
Bridge 1, returns to the S pole of right circular permanent magnet 3, forms closed magnetic circuit.Radially control the control magnetic flux 22 that winding 14 energising produces
Play regulatory role, be used for changing the power of magnetic bearing rotor core radially opposite sides air-gap field, by radial displacement closed loop control,
Air gap between keeping stator and rotor radially is uniform, it is achieved rotor radial stable suspersion；Axially control on the left of winding 7 energising generation
Control magnetic flux 29, right side controls magnetic flux 23 and plays regulatory role, and is used for changing side, magnetic bearing rotor core 8 radial component left and right gas
The power in gap magnetic field, by axial displacement closed loop control, the air gap between keeping stator and rotor axially is uniform, it is achieved rotor axial
Stable suspersion.
As it is shown in figure 1, this utility model is made up of stator and rotor, stator includes that magnetic aluminum ring is divided on right side iron core bridge 1, right side
2, right circular permanent magnet 3, left side annular permanent magnet 4, left side iron core bridge 5, right side axially control iron core 6, axially control winding
7, left side axially controls iron core 9, radially control winding 14, radial direction controls iron core 15 and magnetic aluminum ring 16 is divided in left side, and rotor core 8 wraps
Include radial component and axial component；Wherein, left side axially controls iron core 9 and right side axially controls iron core 6 and all makes E type structure,
The axial centre controlling iron core 9, left side is suction disk 11 for control disk 10, upper-lower position, at suction disk 11 and control circle
Embed between dish 10 and axially control winding 7；It is suction for control disk 12, upper-lower position that right side axially controls the centre of iron core 6
Disk 13, embeds between suction disk 13 and control disk 12 and axially controls winding 7, and four axial control windings can use such as
Winding mode shown in Fig. 1 is in series.The gas length controlled between disk 10,12 and rotor core 8 radial component is more than
Gas length between suction disk 11,13 and rotor core 8 radial component, and suction disk 11,13 is with rotor core 8 radially
Gas length between part axially controls iron core 9, right side less than left side and axially controls the axial part of iron core 6 and rotor core 8
/ gas length, radially control winding 14 radially controlling coiling on iron core 15.Left side point magnetic aluminum ring 16 is arranged on footpath
Axially controlling between iron core 9 to control iron core 15 and left side, right side divides magnetic aluminum ring 2 to be arranged on radially control iron core 15 and right-hand axis
To controlling between iron core 6, right circular permanent magnet 3 is arranged on right side iron core bridge 1 and radially controls iron core 15, magnetic aluminum ring is divided on right side
2, right side axially controls between iron core 6；Left side annular permanent magnet 4 is arranged on left side iron core bridge 5 and radially controls iron core 15, left side
Magnetic aluminum ring 16, left side is divided axially to control between iron core 9.
As in figure 2 it is shown, bias magnetic flux 28 on the left of left side annular permanent magnet 4 generation, go out from the N pole of left side annular permanent magnet 4
Send out, left side divide magnetic aluminum ring 16 to be divided into two parts, be i.e. left side axialy offset magnetic flux 25 and left radial biasing magnetic flux 24, left-hand axis
Axially controlling iron core 9 to biasing magnetic flux 25 through left side and be divided into two parts, i.e. magnetic flux 26 and magnetic flux 27, enter from suction disk 11
Left side axially working gas gap, the radial component of rotor core 8, and radial offset magnetic flux 24 is through radially controlling iron core 15, radially
Working gas gap, enters the radial component of rotor core 8, and then both are together through axial component, the left side iron core of rotor core 8
Bridge air gap, left side iron core bridge iron core 5, return to the S pole of left side annular permanent magnet 4, forms closed magnetic circuit；Right circular permanent magnet 3
Bias magnetic flux 18 on the right side of generation, from the N pole of right circular permanent magnet 3, right side divide magnetic aluminum ring 2 to be divided into two parts, i.e. right
Side axialy offset magnetic flux 19 and right radial biasing magnetic flux 17, right side axialy offset magnetic flux 19 axially controls iron core 6 through right side
It is divided into two parts, i.e. magnetic flux 20 and magnetic flux 21, axial working gas gap, the radial direction of rotor core 8 on the right side of suction disk 13 enters
Part, and right radial biasing magnetic flux 17 is through radially controlling iron core 15, radially working gas gap, enters the radial direction of rotor core 8
Part, then both are together through the axial component of rotor core 8, right side iron core bridge air gap, right side iron core bridge 1, return to right side
The S pole of annular permanent magnet 3, forms closed magnetic circuit.
This permanent magnet bias Three Degree Of Freedom magnetic bearing utilizes the annular permanent magnet of two axial chargings to set up axially and footpath
To biasing magnetic flux, stator and rotor iron core is made by the material that axially and radially magnetic property is good, and annular permanent magnet uses axially
Magnetization, uses rare-earth permanent magnet or ferrite permanent magnet that magnetic property is good, controls winding and all uses the electromagnetic wire of well conducting
Invade paint drying after circle coiling to form.
Technological means disclosed in this utility model scheme is not limited only to the technological means disclosed in above-mentioned embodiment, also
Including the technical scheme being made up of above technical characteristic combination in any.It should be pointed out that, the ordinary skill for the art
For personnel, on the premise of without departing from this utility model principle, it is also possible to make some improvements and modifications, these improve and profit
Decorations are also considered as protection domain of the present utility model.
Claims (7)
1. a permanent magnet bias Three Degree Of Freedom magnetic bearing, including stator, rotor core (8), it is characterised in that: described rotor core
(8) axial component, radial component are included；Described stator includes the axial component along rotor core (8), and with rotor core (8)
Radial component be symmetrical centre, the most symmetrically arranged right side iron core bridge (1), left side iron core bridge (5)；Right circular permanent magnet
(3), left side annular permanent magnet (4)；Right side axially controls iron core (6), left side axially controls iron core (9)；Left side annular permanent magnet
(4), it is provided with between right circular permanent magnet (3) and radially controls iron core (15), its stator tooth is wound with and radially controls winding
(14)；Right side axially controls iron core (6), left side axially controls iron core (9) and radially controls to be respectively arranged with between iron core (15)
Magnetic aluminum ring (16) is divided in right side point magnetic aluminum ring (2), left side；Right side axially controls iron core (6), left side axially controls iron core (9) all in E
Shape structure, in stator slot, coiling axially controls winding (7) respectively, axially controls winding (7) energising and produces left and right side control magnetic flux
(29,23).
A kind of permanent magnet bias Three Degree Of Freedom magnetic bearing the most according to claim 1, it is characterised in that: described right side is axially controlled
Iron core processed (6), left side axially control suction disk (13,11) and the interposition that iron core (9) is arranged respectively by upper-lower position
The control disk (12,10) installed is constituted, and axially controls winding (7) and is wound in suction disk (13,11) and controls disk
Between (12,10).
A kind of permanent magnet bias Three Degree Of Freedom magnetic bearing the most according to claim 2, it is characterised in that: described control disk
Gas length between (12,10) and rotor core (8) radial component is more than suction disk (13,11) and rotor core (8) footpath
Gas length between gas length between part, and suction disk (13,11) and rotor core (8) radial component is less than
Right side axially controls iron core (6), left side axially controls the gas length between iron core (9) and rotor core (8) axial component.
A kind of permanent magnet bias Three Degree Of Freedom magnetic bearing the most according to claim 1 and 2, it is characterised in that: described right side ring
Shape permanent magnet (3), left side annular permanent magnet (4) are the annular permanent magnet of axial charging, provide radial and axial for magnetic bearing
Biasing magnetic flux.
A kind of permanent magnet bias Three Degree Of Freedom magnetic bearing the most according to claim 1 and 2, it is characterised in that: described right side is divided
Magnetic aluminum ring (2), left side divide magnetic aluminum ring (16) to be made up of monoblock aluminium, it is ensured that permanent magnet not only produces radial offset magnetic flux but also produces axle
To biasing magnetic flux, and reduce leakage field.
A kind of permanent magnet bias Three Degree Of Freedom magnetic bearing the most according to claim 1 and 2, it is characterised in that: described right side ferrum
Core bridge (1), left side iron core bridge (5), right side axially controls iron core (6), left side axially controls iron core (9), rotor core (8), footpath
The material with good axially and radially magnetic property is all used to make to controlling iron core (15).
A kind of permanent magnet bias Three Degree Of Freedom magnetic bearing the most according to claim 4, it is characterised in that: described right circular is forever
Magnet (3), left side annular permanent magnet (4) are rare earth permanent-magnetic material and make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620548201.XU CN205663758U (en) | 2016-06-08 | 2016-06-08 | Three degree of freedom magnetic bearings of permanent magnetism biasing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620548201.XU CN205663758U (en) | 2016-06-08 | 2016-06-08 | Three degree of freedom magnetic bearings of permanent magnetism biasing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205663758U true CN205663758U (en) | 2016-10-26 |
Family
ID=57156548
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620548201.XU Expired - Fee Related CN205663758U (en) | 2016-06-08 | 2016-06-08 | Three degree of freedom magnetic bearings of permanent magnetism biasing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205663758U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864292A (en) * | 2016-06-08 | 2016-08-17 | 淮阴工学院 | Permanent magnet polarization three-degree-of-freedom magnetic bearing |
-
2016
- 2016-06-08 CN CN201620548201.XU patent/CN205663758U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864292A (en) * | 2016-06-08 | 2016-08-17 | 淮阴工学院 | Permanent magnet polarization three-degree-of-freedom magnetic bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191023 Address after: 223441 No.9 Xiangyun Road, economic development zone, Lianshui County, Huai'an City, Jiangsu Province Patentee after: Huaian Zhong Yi Motor Co., Ltd. Address before: 223005 Jiangsu city in Huaian Province, while the economic and Technological Development Zone, Road No. 1 Patentee before: Huaijin Polytechnical College |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161026 Termination date: 20210608 |
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| CF01 | Termination of patent right due to non-payment of annual fee |