CN105422647B - magnetic bearing auxiliary device - Google Patents
magnetic bearing auxiliary device Download PDFInfo
- Publication number
- CN105422647B CN105422647B CN201510995180.6A CN201510995180A CN105422647B CN 105422647 B CN105422647 B CN 105422647B CN 201510995180 A CN201510995180 A CN 201510995180A CN 105422647 B CN105422647 B CN 105422647B
- Authority
- CN
- China
- Prior art keywords
- air
- bearing
- main body
- windband
- axis
- 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.)
- Active
Links
- 238000007789 sealing Methods 0.000 claims description 15
- 239000002184 metal Substances 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 230000005389 magnetism Effects 0.000 claims description 6
- 238000002347 injection Methods 0.000 abstract description 3
- 239000007924 injection Substances 0.000 abstract description 3
- 230000017525 heat dissipation Effects 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 230000005611 electricity Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000002826 coolant Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000009969 flowable effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000002887 superconductor Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- 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
- F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
-
- 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
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2127/00—Auxiliary mechanisms
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
Magnetic bearing auxiliary device, it is related to a kind of bearing, it is additionally provided on axis and the matched collection windband of the airfoil fan, collect windband and include air intake and outlet air end, air intake wraps the airfoil fan, outlet air end is extended to by the bearing main body outside the bearing main body, air outlet is provided on outlet air end, collect that windband one section in the bearing main body is uniformly intensive to be provided with several outlet air points, it is also slided in collection windband and is provided with sliding sleeve, the air-out passage to match with the outlet air point is provided on sliding sleeve, it is provided with and the matched placement groove of the fixed groove in collection windband, it places in groove and is provided with resetting spring, it is provided on resetting spring and the matched magnetic patch of the fixed groove.Compared with prior art, the present apparatus has airflow injection device on axis, can generate air-flow when shaft rotation is moved, and the air-flow suspended state of jet-stream wind holding shaft in magnetic bearing into magnetic bearing can be allowed when point loses magnetic when magnetic bearing loses.
Description
Technical field
The present invention relates to a kind of bearing, especially a kind of magnetic bearing.
Background technology
Magnetic bearing is a kind of novel high-performance bearing.Compared with conventional ball bearings, sliding bearing and filmatic bearing,
Mechanical Contact is not present in magnetic bearing, and rotor can reach very high running speed, have mechanical wear is small, low energy consumption, noise is small,
Long lifespan, without lubrication, without oily pollution the advantages that, the particular surroundings such as particularly suitable high speed, vacuum, ultra-clean.It can be widely used for machine
The fields such as tool processing, turbomachinery, aerospace, vacuum technique, rotor dynamics identification and test, being acknowledged as pole has
The novel bearing of future.Magnetic bearing is divided into can be divided into following three categories according to the presentation mode of magnetic force:Active magnetic bearing, also referred to as
Active magnetic bearings, magnetic field are controllable, and the position of rotor is suspended by detection, and carrying out active control realization by control system turns
Son suspends；Passive magnetic bearing, also referred to as passive magnetic bearing realize the branch to rotor portion degree of freedom with permanent magnet or superconductor
It holds；Magnetic axis is mixed, electromagnet and permanent magnet or superconductor are contained in mechanical structure.
Active magnetic bearings have many advantages, such as that rotating speed is high, contactless, unlubricated, are whether there is in some special occasions alternative excellent
Gesture.But a kind of active magnetic bearing needs are powered, once power failure will allow magnetism to disappear, and it is at this moment high-speed rotating
Axis can not be just suspended in magnetic bearing, and moment friction increase is very easy to damage axis in this way, more serious axis to be allowed to break
It splits or motor guarantor is directly allowed to scrap.
Invention content
The present invention provides magnetic bearing auxiliary device, the present apparatus has air-flow on axis for deficiency of the prior art
Injection apparatus can generate air-flow when shaft rotation is moved, and air-flow can be allowed to spray gas into magnetic bearing when magnetic bearing is lost when point loses magnetic
Flow suspended state of the holding shaft in magnetic bearing, after solving previous magnetic bearing dead electricity, magnetic bearing increases with axis friction, damage axis with
And the problem of motor.
In order to solve the above-mentioned technical problem, the present invention is addressed by following technical proposals：Magnetic bearing auxiliary device, packet
Bearing main body is included, the bearing main body is set on axis, and the bearing main body can produce between the axis at work
Gap is given birth to, uniform circular is provided with several airfoil fans on the axis, is additionally provided on the axis and the aerofoil profile leaf
The matched collection windband of piece, the collection windband include air intake and outlet air end, and the air intake wraps the aerofoil profile
Blade, the outlet air end are extended to outside the bearing main body by the bearing main body, are set on the outlet air end
It is equipped with air outlet, the collection windband one section in the bearing main body is uniformly intensive to be provided with several outlet air points, described
It is also slided in collection windband and is provided with sliding sleeve, the air-out passage to match with the outlet air point, institute are provided on the sliding sleeve
Several fan-shaped diaphragm seals are movably set on the air outlet stated, the fan-shaped diaphragm seal connects sliding sleeve, institute by connecting rod
Annular groove is provided in the collection windband stated, is provided on the sliding sleeve and the matched plectrum of the annular groove, institute
Baffle ring is additionally provided in the collection windband stated, several springs are provided between the baffle ring and the sliding sleeve, it is described
Uniform circular is gone back on sliding sleeve and is provided with several fixed grooves, the fixed groove is described in the bearing main body
Be provided in collection windband with the matched placement groove of the fixed groove, be provided with resetting spring in the placement groove,
It is provided on the resetting spring and the matched magnetic patch of the fixed groove, magnetism and the bearing after energization of the magnetic patch
Main body is repelled each other.
In above-mentioned technical proposal, it is preferred that several slideways, the sliding sleeve are evenly arranged in the collection windband
It is arranged on the slideway.
In above-mentioned technical proposal, it is preferred that be provided on the air-out passage and the matched sealing of the outlet air point
Baffle ring.
In above-mentioned technical proposal, it is preferred that endless metal circle is provided on the Sealing shield ring, described states outlet air point
On be provided with and the matched sealing sliding slot of the endless metal circle.
In above-mentioned technical proposal, it is preferred that be enclosed with sealing rubber cover on the fan-shaped diaphragm seal.
The present invention is a kind of magnetic bearing auxiliary device, and magnetic bearing forfeiture magnetism causes after mainly solving the unexpected dead electricity of magnetic bearing
The problem of axis can not suspend.The present invention collects high-speed flow in axis high speed rotation by airfoil fan, when the normal work of magnetic bearing
When making, high-speed flow is projected from axis tail portion does not influence magnetic bearing work, and after magnetic bearing dead electricity, the magnetic patch collected in windband can be quick
It senses, then automatic switching on outlet air point and air-out passage are spouting from outlet air point by high-speed flow, by air-flow in magnetic axis
Interior picking-up axis is held, prevents axis from colliding the damage for causing axis with magnetic bearing.
Compared with prior art, the beneficial effects of the invention are as follows：The present apparatus has airflow injection device on axis, can be in axis
Air-flow is generated during rotation, when magnetic bearing lose can be allowed when point loses magnetic air-flow into magnetic bearing jet-stream wind holding shaft in magnetic bearing
Interior suspended state, after solving previous magnetic bearing dead electricity, the problem of friction of magnetic bearing and axis increases, damages axis and motor.
Description of the drawings
Fig. 1 is front schematic view of the present invention.
Fig. 2 is present invention collection windband schematic diagram.
Fig. 3 is present invention collection windband interior profile schematic diagram.
Fig. 4 is Fig. 3-A places of the present invention schematic diagram.
Fig. 5 is Fig. 3-B places of the present invention schematic diagram.
Fig. 6 is airfoil fan front schematic view of the present invention.
Fig. 7 is bearing main body diagrammatic cross-section of the present invention.
Specific embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
As shown in Figures 1 to 7, a kind of magnetic bearing auxiliary device, including bearing main body 1, in the bearing main body 1
It is provided with several iron cores 11 nicely rounded week, electromagnetic coil 12 is wound on the iron core 11, is set between the iron core 11
There is sphero-cylindrical lens 81, rolled in the sphero-cylindrical lens 81 and be provided with steel ball 82,81 bottom of sphero-cylindrical lens is provided with oil outlet
83.The bearing main body 1 is set on axis 2, and the bearing main body 1 can generate seam between the axis 2 at work
Gap, uniform circular is provided with several airfoil fans 21 on the axis 2.It is additionally provided on the axis 2 and the aerofoil profile leaf
The matched collection windband 3 of piece 21, the collection windband 3 include air intake 31 and outlet air end 32, and the air intake 31 wraps
The airfoil fan, the air intake 31 is in inverted cone-shaped to small to 32 transition of outlet air end.The outlet air end 32 passes through
The bearing main body 1 is extended to outside the bearing main body 1, and air outlet is provided on the outlet air end 32.The collection
Windband 3 one section in the bearing main body 1 is uniformly intensive to be provided with several outlet air points 34, in the collection windband 3 uniformly
Be provided with several slideways 37, the sliding sleeve 4 is arranged on the slideway 37, be provided on the sliding sleeve 4 with
The air-out passage that the outlet air point 34 matches is provided on the air-out passage and the matched sealing of the outlet air point 34 is kept off
42 are enclosed, endless metal circle 43 is provided on the Sealing shield ring 42, sealing sliding slot 44 is provided on outlet air point 34, it is close
It is provided on envelope sliding slot 44 and the matched limiting slideway 45 of the endless metal circle 43.It is movably set on the air outlet
Several fan-shaped diaphragm seals 46 are enclosed with sealing rubber cover on the fan-shaped diaphragm seal 46, and the fan-shaped diaphragm seal 46 is logical
It crosses connecting rod 47 and connects sliding sleeve 4.Annular groove 33 is provided in the collection windband 3, is provided on the sliding sleeve 4 and institute
State 33 matched plectrum 41 of annular groove, be additionally provided with baffle ring 35 in the collection windband 3, the baffle ring 35 with it is described
Several springs 36 are provided between sliding sleeve 4.Uniform circular, which is gone back, on the sliding sleeve 4 is provided with several fixed grooves
63, it is provided in the collection windband 3 and places groove 61, resetting spring 62 is provided in the placement groove 61, it is described
It is provided on resetting spring 62 and the 63 matched magnetic patch 64 of fixed groove, magnetism and the axis after energization of the magnetic patch 64
Main body 1 is held to repel each other.Several ball grooves 38 are evenly arranged in the collection windband 3, are rolled in the ball groove 38
It is provided with and the matched small ball 39 of the bearing main body 1.Heat dissipation channel 91, institute are additionally provided in the bearing main body 1
It is provided on the iron core 11 stated and is circumscribed with heat dissipation with the 91 matched radiating groove 92 of heat dissipation channel, the heat dissipation channel 91
Device 9, the heat dissipation channel 91 is interior to have flowable coolant.
The present invention is a kind of magnetic bearing auxiliary device, mainly solves magnetic bearing and loses magnetism in unexpected power-off so that axis 2
The problem of can not stablizing among bearing main body 1.In order to solve this problem the present invention be provided on axis 2 airfoil fan 21 with
And it is fixed at the collection windband 3 on axis 2.When axis 2 is run, collect windband 3 and be arranged on collection windband 3 in sliding sleeve 4 all
With axis 2 together high-speed rotation, this is to have high-speed flow in collection windband 3 under the action of the airfoil fan 21 to pass through, in normal work
When making, high-speed flow can enter from air intake 31, be left from outlet air end 32, have no effect on the work of bearing main body 1.As bearing master
When body 1 powers off suddenly, magnetic in bearing main body 1 to disappear, the magnetic patch 64 to repel each other with the bearing main body 1 after energization is in resetting spring 62
Under the action of bounce back, allow magnetic patch 64 be detached from fixed groove 63, at this time entire sliding sleeve 4 slided under the action of spring 36, pass through
Connecting rod 47 retracts fan-shaped diaphragm seal 46, several fan-shaped diaphragm seals 46 is allowed to live outlet air end 32 in fan-shaped closure, then by close
Envelope sliding slot 44 allows the movement of block circle 42 to agree with outlet air point 34, is not leaked to ensure that block circle 42 agrees with completely with outlet air point 34
Gas is then provided with limiting slideway 45 in sealing sliding slot 44, sets endless metal circle 43 on block circle 42, endless metal circle 43 exists
It limits in slideway 45, endless metal circle 43 will move in limiting slideway 45 when mobile, and band dynamic sealing sliding slot 44 steadily agrees with
Outlet air point 34.At this time since fan-shaped diaphragm seal 46 has closed outlet air end 32, the air-flow in collection windband 3 can only be led to by outlet air
Road is sprayed with outlet air point 34, these air-flows ejected are got on bearing main body 1 under 2 high speed rotation of axis and axis 2 is suspended again
It lifts, motor can be closed at this time and slowed down by axis 2 until stopping, as long as axis 2 will have jet-impingement always in rotation, making
Will not be in direct contact between axis 2 and bearing main body 1 and larger friction occurs cause damage to axis 2.While in order to ensure
Frictional force is minimum during existing accident, is also evenly arranged with several ball grooves 38 in collection windband 3, is provided in ball groove 38
Small ball 39 is provided with sphero-cylindrical lens 81 between the iron core 11, is rolled in the sphero-cylindrical lens 81 and be provided with steel ball 82,
Also it is rolling friction rather than the big sliding friction of frictional force in this way after axis 2 when something goes wrong is contacted with bearing main body 1.For
The stabilization of bearing main body 1 is kept, heat dissipation channel 91 is also additionally provided in bearing main body 1, is provided on the iron core 11
With the 91 matched radiating groove 92 of heat dissipation channel, the heat dissipation channel 91 is circumscribed with radiator 9, the heat dissipation channel
There is flowable coolant in 91.Cooled down by ceaselessly flowing coolant to bearing main body 1, absorbed because coil leads to
Heat caused by electricity keeps 1 the operation is stable of bearing main body not go out and is stopped because of overheat.
Claims (5)
1. magnetic bearing auxiliary device, including bearing main body（1）, the bearing main body（1）It is set in axis（2）On, the axis
Hold main body（1）It at work can be with the axis（2）Between generate gap, it is characterized in that, the axis（2）Upper uniform circular is set
It is equipped with several airfoil fans（21）, the axis（2）On be additionally provided with and the airfoil fan（21）Matched collection windband
（3）, the collection windband（3）Including air intake（31）And outlet air end（32）, the air intake（31）Wrap the wing
Type blade（21）, the outlet air end（32）Pass through the bearing main body（1）Extend to the bearing main body（1）Outside, exist
The outlet air end（32）On be provided with air outlet, the collection windband（3）In the bearing main body（1）Interior one section is uniformly intensive
It is provided with several outlet air points（34）, the collection windband（3）It inside also slides and is provided with sliding sleeve（4）, the sliding sleeve（4）
On be provided with and the outlet air point（34）The air-out passage of matching is movably set with several sector sealings on the air outlet
Piece（46）, the fan-shaped diaphragm seal（46）Pass through connecting rod（47）Connect sliding sleeve（4）, the collection windband（3）On be provided with
Annular groove（33）, the sliding sleeve（4）On be provided with and the annular groove（33）Matched plectrum（41）, it is described
Collect windband（3）Inside it is additionally provided with baffle ring（35）, the baffle ring（35）With the sliding sleeve（4）Between be provided with several bullets
Spring（36）, the sliding sleeve（4）On go back uniform circular and be provided with several fixed grooves（63）, the collection windband（3）It is interior
It is provided with placement groove（61）, the placement groove（61）Inside it is provided with resetting spring（62）, the resetting spring（62）
On be provided with and the fixed groove（63）Matched magnetic patch（64）, the magnetic patch（64）Magnetism be powered after bearing master
Body（1）Repel each other.
2. magnetic bearing auxiliary device according to claim 1, it is characterized in that, the collection windband（3）Inside it is evenly arranged with
Several slideways（37）, the sliding sleeve（4）It is arranged on the slideway（37）On.
3. magnetic bearing auxiliary device according to claim 1, it is characterized in that, be provided on the air-out passage with it is described
Outlet air point（34）Matched Sealing shield ring（42）.
4. magnetic bearing auxiliary device according to claim 3, it is characterized in that, the Sealing shield ring（42）On be provided with ring
Shape quoit（43）, described states outlet air point（34）On be provided with and the endless metal circle（43）Matched sealing sliding slot
（45）.
5. magnetic bearing auxiliary device according to claim 1, it is characterized in that, the fan-shaped diaphragm seal（46）On be enclosed with
Sealing rubber cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510995180.6A CN105422647B (en) | 2015-12-28 | 2015-12-28 | magnetic bearing auxiliary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510995180.6A CN105422647B (en) | 2015-12-28 | 2015-12-28 | magnetic bearing auxiliary device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105422647A CN105422647A (en) | 2016-03-23 |
| CN105422647B true CN105422647B (en) | 2018-07-03 |
Family
ID=55501100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510995180.6A Active CN105422647B (en) | 2015-12-28 | 2015-12-28 | magnetic bearing auxiliary device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105422647B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4982126A (en) * | 1988-04-29 | 1991-01-01 | Societe De Mecanique Magnetique S.A. | Auxiliary bearing having a graphite stator for a rotary shaft mounted on magnetic bearings |
| US5126612A (en) * | 1987-04-09 | 1992-06-30 | Societe Europeenne De Propulsion | Active radial magnetic bearing combined with a back-up bearing |
| US5355040A (en) * | 1992-07-23 | 1994-10-11 | The Glacier Metal Company Limited | Magnetic bearing back-up |
| CN104279236A (en) * | 2013-05-29 | 2015-01-14 | Skf磁性机械技术公司 | Auxiliary bearing for magnetically suspended rotor system |
| CN204239469U (en) * | 2014-11-20 | 2015-04-01 | 湘潭电机股份有限公司 | A kind of auxiliary bearing structure of electromagnetic bearing |
-
2015
- 2015-12-28 CN CN201510995180.6A patent/CN105422647B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5126612A (en) * | 1987-04-09 | 1992-06-30 | Societe Europeenne De Propulsion | Active radial magnetic bearing combined with a back-up bearing |
| US4982126A (en) * | 1988-04-29 | 1991-01-01 | Societe De Mecanique Magnetique S.A. | Auxiliary bearing having a graphite stator for a rotary shaft mounted on magnetic bearings |
| US5355040A (en) * | 1992-07-23 | 1994-10-11 | The Glacier Metal Company Limited | Magnetic bearing back-up |
| CN104279236A (en) * | 2013-05-29 | 2015-01-14 | Skf磁性机械技术公司 | Auxiliary bearing for magnetically suspended rotor system |
| CN204239469U (en) * | 2014-11-20 | 2015-04-01 | 湘潭电机股份有限公司 | A kind of auxiliary bearing structure of electromagnetic bearing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105422647A (en) | 2016-03-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110571971B (en) | Magnetic suspension motor with negative pressure air cooling device | |
| CN205319816U (en) | Permanent magnetism disk type motor cooling system | |
| KR101981224B1 (en) | Self-cooling And Lubricated Center-symmetric Organic Rankine Cycle Turbine Generator | |
| CN201774387U (en) | Low-voltage and high-power cooling dome of electric motor | |
| CN110460198A (en) | High-speed permanent magnet motor | |
| CN105422647B (en) | magnetic bearing auxiliary device | |
| CN105485165B (en) | A kind of magnetic bearing auxiliary air appliance | |
| CN105840654B (en) | A kind of permanent magnet bias single-degree-of-freedom axial magnetic bearing | |
| CN105422622B (en) | A kind of magnetic bearing auxiliary device | |
| CN105485164B (en) | Magnetic bearing auxiliary air appliance | |
| CN205663761U (en) | Five degrees of freedom of low -power permanent magnet biased integrate magnetic bearing | |
| CN205248954U (en) | Need not big power motor bearing cooling structure of outside fuel feeding | |
| CN203871963U (en) | High-speed electric main shaft applying permanent magnet to replace bearing | |
| CN106100287A (en) | A kind of non-rotary permanent-magnet liquid-cooled retarder of permanent magnet | |
| CN202937638U (en) | Permanent magnet biased axial magnetic suspension bearing | |
| CN105840655B (en) | A kind of novel permanent magnetic biasing single-degree-of-freedom axial magnetic bearing | |
| CN105914945A (en) | Device for preventing axial endplay of motor | |
| CN205298685U (en) | Check valve and have its compressor | |
| CN104895799B (en) | A kind of changeable flow electromagnetic clutch cooling water pump | |
| CN105508425B (en) | A kind of self-power generation type magnetic bearing | |
| CN203482015U (en) | Magnetic suspension permanent-magnet synchronous high-speed motor | |
| CN105465175B (en) | A kind of active magnetic bearing | |
| CN106208584A (en) | A kind of totally-enclosed self-ventilation magneto | |
| CN105422621B (en) | Active magnetic bearing | |
| CN209217914U (en) | A kind of belt fan Wind-cooling type governor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Hongwei Inventor before: Wang Pengkao |
|
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20180514 Address after: 221700 Yuanzhao Village Industrial Zone, Zhao Zhuang Town, Fengxian County, Xuzhou, Jiangsu Applicant after: XUZHOU GEILI MAGNETIC INDUSTRY CO.,LTD. Address before: 315200 666 Feng Ming Road, Zhenpu Town, Zhenhai District, Ningbo, Zhejiang Applicant before: NINGBO DAFEN SEIKO BEARING CO.,LTD. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Auxiliary device for magnetic bearing Effective date of registration: 20191218 Granted publication date: 20180703 Pledgee: Fengxian County science and Technology Development Service Station Pledgor: XUZHOU GEILI MAGNETIC INDUSTRY CO.,LTD. Registration number: Y2019320000375 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220112 Granted publication date: 20180703 Pledgee: Fengxian County science and Technology Development Service Station Pledgor: XUZHOU GEILI MAGNETIC INDUSTRY CO.,LTD. Registration number: Y2019320000375 |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20160323 Assignee: Xuzhou Dongqi electromechanical Co.,Ltd. Assignor: XUZHOU GEILI MAGNETIC INDUSTRY CO.,LTD. Contract record no.: X2022320000015 Denomination of invention: Magnetic bearing auxiliary device Granted publication date: 20180703 License type: Exclusive License Record date: 20220118 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Magnetic bearing auxiliary device Granted publication date: 20180703 Pledgee: Bank of Jiangsu Co.,Ltd. Xuzhou Branch Pledgor: XUZHOU GEILI MAGNETIC INDUSTRY CO.,LTD. Registration number: Y2024980011527 |