CN105978213B - The magnetic liquid suspension bearing of disc type electric machine - Google Patents
The magnetic liquid suspension bearing of disc type electric machine Download PDFInfo
- Publication number
- CN105978213B CN105978213B CN201610502389.9A CN201610502389A CN105978213B CN 105978213 B CN105978213 B CN 105978213B CN 201610502389 A CN201610502389 A CN 201610502389A CN 105978213 B CN105978213 B CN 105978213B
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- magnetic
- circle
- annular
- fixed tooth
- moving teeth
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Classifications
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
- F16C32/0406—Magnetic bearings
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- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The present invention is the magnetic liquid suspension bearing of disc type electric machine, this suspension bearing is made of the axial magnetic suspension bearing for acting on magnetic conduction axis permanent magnetism ring set, first annular magnetic boots, the first fixed tooth circle and the first moving teeth circle, and the radial magnetic bearing for acting on flywheel is made of permanent magnetism ring set, second and third annular magnetic boots, the second fixed tooth circle and the second moving teeth circle.Magnetic fluid is filled between each fixed tooth circle and the annular double wedge of moving teeth circle, can not only magnetic fluid be kept to be uniformly distributed, it can also be under the effect of the permanent-magnetic clamp set of strong magnetic, make to generate extremely strong pulling force between each fixed tooth circle and the magnetic fluid of corresponding moving teeth circle, the pulling force damps magnetic conduction axis and p-m rotor or so and moves up and down, and makes magnetic conduction axis and p-m rotor while reaching magnetic suspension state.The outstanding advantages that the present invention has structure novel, suspension effect reliable and stable.
Description
Technical field
The invention belongs to disc type electric machines, more particularly to a kind of magnetic liquid suspension bearing of disc type electric machine.
Background technology
The application for a patent for invention ' bimorph transducer alternating current motor flywheel power accumulator ' of application number CN201010573714.3 discloses
Following technical scheme：A kind of bimorph transducer alternating current motor flywheel power accumulator, flywheel upper and lower side axis be equipped with the first high-speed bearing, each first
High-speed bearing is supported by jackshaft up and down respectively, and each jackshaft up and down is respectively equipped with the second high-speed bearing, each second high-speed bearing
It is respectively supported at case inside upper and lower end face, the flywheel upper and lower end face, which is symmetrically inlayed, is fixed with annular permanent magnet rotor, and annular is forever
Magnet rotor upper and lower end face is magnetic pole, and two rotor same polarities are opposite, and the case inside upper and lower end face is respectively equipped with and respective annular
The corresponding stator core being made of circular ferrite of p-m rotor, shell are equipped with the binding post for connecting each stator winding, respectively
Stator core and its stator winding respectively constitute exchange disc type electric machine with corresponding rotor.The accumulator is driven by exchange disc type electric machine
Dynamic flywheel overcomes direct current brush sliding contact disadvantage, but using double high-speed bearing series arrangements, is only capable of making flywheel with twice
It is operated in the most high speed of high-speed bearing.
Invention content
The purpose of the present invention is to solve double high-speed bearings of aforementioned bimorph transducer alternating current motor flywheel power accumulator series windings to tie
Structure is only capable of the technical issues of making flywheel be operated with the most high speed of twice high-speed bearing, and provides a kind of magnetic fluid of disc type electric machine
Suspension bearing.
The present invention takes following technical scheme to achieve the above object：The magnetic fluid magnetic suspension bearing of disc type electric machine, including
The shell of disc type electric machine, magnetic conduction axis, magnetic conduction axis both ends high-speed bearing and be fixed on the p-m rotor of magnetic conduction axis, feature
It is to be set to the bearing block of shell equipped with the fixed permanent magnetism ring set of ring magnetic conduction axis, the permanent-magnetic clamp set upper and lower ends are set respectively
There are first annular magnetic boots and the second annular magnetic boots, first annular magnetic boots to be equipped with the first fixed tooth circle corresponding with magnetic conduction axis, the
Second ring magnetic boots are equipped with the second fixed tooth circle corresponding with p-m rotor upper surface, and magnetic conduction axis is equipped with symmetrical with the first fixed tooth circle
The first moving teeth circle being arranged, p-m rotor upper surface are equipped with third annular magnetic boots corresponding with the second annular magnetic boots, third ring
Shape magnetic boots be equipped with the symmetrically arranged second moving teeth circle of the second fixed tooth circle, each fixed tooth circle and moving teeth circle respectively by arranging at equal intervals
The annular double wedge of row is constituted, and magnetic fluid, the high speed shaft are separately filled between each fixed tooth circle and each annular double wedge of moving teeth circle
The outer circle held and the fit clearance of its bearing block are 0.4 to 0.5mm.
The present invention can also take following technical measures：
The annular double wedge facewidth 0.4-0.5mm of the fixed tooth circle and moving teeth circle, tooth depth 2-2.2mm, between annular double wedge between
Every 2.3-2.6mm.
The inside of the permanent magnetism ring set is equipped with annular and is closed induction coil.
Advantages and advantages of the invention are：This magnetic liquid suspension bearing is by permanent magnetism ring set, first annular magnetic boots,
Certain gear ring and the first moving teeth circle constitute the axial magnetic suspension bearing for acting on magnetic conduction axis, by permanent magnetism ring set, second and third
Annular magnetic boots, the second fixed tooth circle and the second moving teeth circle constitute the radial magnetic bearing for acting on flywheel.Magnetic fluid is filled in respectively
Between fixed tooth circle and the annular double wedge of moving teeth circle, can not only magnetic fluid be kept to be uniformly distributed, it can also be in the permanent-magnetic clamp of strong magnetic
Set effect under, make to generate extremely strong pulling force between each fixed tooth circle and the magnetic fluid of corresponding moving teeth circle, the pulling force damp magnetic conduction axis and
It p-m rotor or so and moves up and down, makes magnetic conduction axis and p-m rotor while reaching magnetic suspension state.High-speed bearing can be kept away
Exempt from electromagnetic suspension bearing generation machinery and sweep thorax, there is moment centralizing function, meanwhile, when p-m rotor ultrahigh speed rotates, in electricity
The outer shroud of high-speed bearing can completely disengage with its bearing block and be more advantageous to the super of p-m rotor under the action of magnetic suspension bearing
High speed rotation.The outstanding advantages that the present invention has structure novel, suspension effect reliable and stable.
Description of the drawings
Attached drawing 1 is 1 structural profile illustration of magnetic suspension bearing embodiment of disc type electric machine.
Attached drawing 2 is 2 structural profile illustration of magnetic suspension bearing embodiment of disc type electric machine.
It is marked in figure：1 pedestal, 2 upper covers, 3 p-m rotors, 4 permanent magnetism ring sets, 5 first annular magnetic boots, 6 first fixed tooth circles, 7
First moving teeth circle, 8 magnetic conduction axises, 9 high-speed bearings, 10 second annular magnetic boots, 11 second fixed tooth circles, 12 second moving teeth circles, 13
Three annular magnetic boots, 14 rotor permanent magnets, 15 stators, 16 annulars are closed induction coil.
Specific implementation mode
It is further illustrated the present invention with reference to embodiment and its attached drawing.
Embodiment 1 as shown in Figure 1, the shell of disc type electric machine are made of pedestal 1 and upper cover 2, are set to 2 bearing block of upper cover and set
There are 8 fixed permanent magnetism ring set 3 of ring magnetic conduction axis, 3 upper end of permanent magnetism ring set to be equipped with first annular magnetic boots 5, lower end is equipped with the second ring
Shape magnetic boots 10.
First annular magnetic boots 5 be equipped with first fixed tooth circle 6 corresponding with magnetic conduction axis 8, the second annular magnetic boots 10 be equipped with
The corresponding second fixed tooth circle in 3 upper surface of p-m rotor 11.
Magnetic conduction axis 8 be equipped with 6 symmetrically arranged first moving teeth circle 7 of the first fixed tooth circle, 3 upper surface of p-m rotor be equipped with
Second annular magnetic boots, 10 corresponding third annular magnetic boots 13.
Third annular magnetic boots 13 are equipped with and 11 symmetrically arranged second moving teeth circle 12 of the second fixed tooth circle.
In figure, each fixed tooth circle and moving teeth circle are made of annular double wedge arranged at equal interval respectively, each fixed tooth circle and moving teeth circle
Each annular double wedge between be separately filled with the magnetic fluid (not shown) of colloidal state.The annular double wedge facewidth of each fixed tooth circle and moving teeth circle
0.4-0.5mm, tooth depth 2-2.2mm are spaced 2.3-2.6mm between annular double wedge.
In figure, the outer circle of the high-speed bearing 9 at 8 both ends of magnetic conduction axis is 0.4 to 0.5mm with the fit clearance of its bearing block.
Embodiment 2 as shown in Figure 2, the inside of permanent magnetism ring set 4 are equipped with annular and are closed induction coil 16, the number of turns 1, by thickness
Spend 1mm, the wide copper plate contour with permanent magnetism ring set 4 is constituted.
Annular is closed induction coil 16 and has the effect that：When off-centered shifting occurs for magnetic conduction axis 8 or p-m rotor 3
When dynamic, the annular double wedge of corresponding moving teeth circle and fixed tooth circle misplaces, and causes the magnetic force by magnetic conduction axis 8 or p-m rotor 3
Line number amount is reduced, and is closed induction coil induced voltage at this time, is generated electric current, the magnetization force direction of the electric current will maintain original magnetic force
Line number amount is constant, that is, the magnetic conduction axis 8 or p-m rotor 3 is prevented to deviate, and annular, which is closed induction coil, to be had significantly
Assist maglev effect.
Other structures of embodiment 2 are identical as Fig. 1 embodiments 1, repeat no more.
Claims (3)
1. the magnetic liquid suspension bearing of disc type electric machine, including the shell of disc type electric machine, magnetic conduction axis, magnetic conduction axis both ends high speed
Bearing and the p-m rotor for being fixed on magnetic conduction axis, it is characterised in that：The bearing block for being set to shell is solid equipped with ring magnetic conduction axis
Fixed permanent magnetism ring set, the permanent-magnetic clamp set upper and lower ends are respectively equipped with first annular magnetic boots and the second annular magnetic boots, first annular
Magnetic boots are equipped with the first fixed tooth circle corresponding with magnetic conduction axis, and the second annular magnetic boots are equipped with corresponding with p-m rotor upper surface
Second fixed tooth circle, magnetic conduction axis be equipped with the symmetrically arranged first moving teeth circle of the first fixed tooth circle, p-m rotor upper surface be equipped with
The corresponding third annular magnetic boots of second annular magnetic boots, third annular magnetic boots are equipped with dynamic with the second fixed tooth circle symmetrically arranged second
Gear ring, each fixed tooth circle and moving teeth circle are made of annular double wedge arranged at equal interval respectively, each fixed tooth circle and moving teeth circle it is each
Be separately filled with magnetic fluid between annular double wedge, the outer circle of the high-speed bearing and the fit clearance of its bearing block be 0.4 to
0.5mm。
2. the magnetic liquid suspension bearing of disc type electric machine according to claim 1, it is characterised in that：The fixed tooth circle and moving teeth
The annular double wedge facewidth 0.4-0.5mm of circle, tooth depth 2-2.2mm are spaced 2.3-2.6mm between annular double wedge.
3. the magnetic liquid suspension bearing of disc type electric machine according to claim 1, it is characterised in that：The permanent magnetism ring set it is interior
Side is equipped with annular and is closed induction coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610502389.9A CN105978213B (en) | 2016-06-30 | 2016-06-30 | The magnetic liquid suspension bearing of disc type electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610502389.9A CN105978213B (en) | 2016-06-30 | 2016-06-30 | The magnetic liquid suspension bearing of disc type electric machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105978213A CN105978213A (en) | 2016-09-28 |
| CN105978213B true CN105978213B (en) | 2018-10-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610502389.9A Active CN105978213B (en) | 2016-06-30 | 2016-06-30 | The magnetic liquid suspension bearing of disc type electric machine |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109245424B (en) * | 2018-09-25 | 2024-05-17 | 常州明磁卓控智能科技有限公司 | High-reliability magnetic suspension high-speed intelligent motor |
| CN111375098B (en) * | 2018-12-29 | 2023-04-07 | 上海微创心力医疗科技有限公司 | Percutaneous blood pump and rotor limit structure thereof |
| CN110112860B (en) * | 2019-04-22 | 2020-11-03 | 江苏大学 | Five-freedom-degree single-side suspension supporting type disc ball flywheel integrated vehicle-mounted energy storage device |
| CN113446314B (en) * | 2020-02-05 | 2022-10-25 | 江西清华泰豪三波电机有限公司 | Rotor multi-source constraint explosion-proof motor using magnetic fluid bearing |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005240963A (en) * | 2004-02-27 | 2005-09-08 | Ebara Corp | Flywheel type energy storing device |
| CN201928127U (en) * | 2010-12-03 | 2011-08-10 | 天津荣亨集团股份有限公司 | Flywheel energy-storage device for double-stator alternating-current motor |
| CN205882925U (en) * | 2016-06-30 | 2017-01-11 | 天津荣亨集团股份有限公司 | Disk type motor's magnetic suspension bearing |
-
2016
- 2016-06-30 CN CN201610502389.9A patent/CN105978213B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005240963A (en) * | 2004-02-27 | 2005-09-08 | Ebara Corp | Flywheel type energy storing device |
| CN201928127U (en) * | 2010-12-03 | 2011-08-10 | 天津荣亨集团股份有限公司 | Flywheel energy-storage device for double-stator alternating-current motor |
| CN205882925U (en) * | 2016-06-30 | 2017-01-11 | 天津荣亨集团股份有限公司 | Disk type motor's magnetic suspension bearing |
Also Published As
| Publication number | Publication date |
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| CN105978213A (en) | 2016-09-28 |
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