CN101907132A - Supporting device for rotor system of magnetic suspension bearing - Google Patents
Supporting device for rotor system of magnetic suspension bearing Download PDFInfo
- Publication number
- CN101907132A CN101907132A CN201010259763XA CN201010259763A CN101907132A CN 101907132 A CN101907132 A CN 101907132A CN 201010259763X A CN201010259763X A CN 201010259763XA CN 201010259763 A CN201010259763 A CN 201010259763A CN 101907132 A CN101907132 A CN 101907132A
- Authority
- CN
- China
- Prior art keywords
- magnetic suspension
- suspension bearing
- rotor
- magnetic
- shell
- 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.)
- Granted
Links
- 239000000725 suspension Substances 0.000 title claims abstract description 37
- 239000007788 liquid Substances 0.000 claims description 23
- 125000006850 spacer group Chemical group 0.000 claims description 11
- 238000013016 damping Methods 0.000 abstract description 9
- 238000007789 sealing Methods 0.000 abstract description 5
- 230000005764 inhibitory process Effects 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 abstract 3
- 229910000976 Electrical steel Inorganic materials 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005339 levitation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005426 magnetic field effect Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Images
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
- F16C2210/00—Fluids
- F16C2210/02—Fluids defined by their properties
- F16C2210/06—Fluids defined by their properties magnetic fluids
-
- 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
- F16C32/044—Active magnetic bearings
- F16C32/0442—Active magnetic bearings with devices affected by abnormal, undesired or non-standard conditions such as shock-load, power outage, start-up or touchdown
-
- 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
- F16C32/044—Active magnetic bearings
- F16C32/047—Details of housings; Mounting of active magnetic bearings
Landscapes
- Fluid-Damping Devices (AREA)
- Vibration Prevention Devices (AREA)
- Combined Devices Of Dampers And Springs (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The invention discloses a supporting device for a rotor system of a magnetic suspension bearing, which comprises a base, a rotor and a magnetic suspension bearing sleeved on the rotor. The magnetic suspension bearing is arranged in a sleeve and a magnetorheological fluid and a work coil which penetrates through the magnetic filed where the magnetorheological fluid is generated are further arranged in the base. The magnetorheological fluid is sealed among the sleeve, the retainer and the inner shell by using a sealing ring. The work coil is arranged in the shell formed by the retainer and the right and the left outer shells. The work coil in the shell is wound on a coil frame, the left outer shell is fixed on the base and the inner shell is fixed on the sleeve. An external cantilever rod is arranged on the left outer shell and an internal cantilever rod is arranged on the right outer shell. The other ends of the external and the internal cantilever rods are connected on a connecting disc, respectively. The rotor system of the magnetic suspension bearing is supported by a magnetorheological damper and inhibition for vibration from the magnetic suspension bearing system is improved by controlling the rigidity and damping of the magnetorheological damper.
Description
Technical field
The present invention supports rotor system of magnetic suspension bearing with MR damper, can improve the inhibition of magnetic levitation bearing system to vibration by the rigidity and the damping of control MR damper.
Background technique
Magnetic suspension bearing by electromagnetic force with rotor bearing, the electromagnetic force of its supporting can be controlled by adjusting coil current or voltage, the rigidity and the damping that are magnetic suspension bearing are regulatable, can suppress the vibration of rotor within the specific limits, the rotor that while itself and its is supported is contactless with it, do not have the machinery wearing and tearing, have many advantages that traditional bearing does not have.But magnetic suspension rotor system is narrower to the stiffness and damping regulation range of self, the control algorithm complexity, particularly its damping is relatively low, it is relatively poor to make it suppress ability to rotor oscillation, particularly rotor is crossed critical and is subjected to the impact unbalanced force, makes the state of equilibrium of rotor and service behaviour be subjected to serious threat.
Summary of the invention
The objective of the invention is, problem at the background technique existence, the regulatable device of its stiffness and damping under a kind of outside magnetic field effect is provided, and its yield stress can great changes will take place under the outside magnetic field, and this variation has characteristics reversible, continuous, rapid and that be easy to control.Support rotor system of magnetic suspension bearing with MR damper, can improve the inhibition of magnetic levitation bearing system by the rigidity and the damping of control MR damper to vibration.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of bearing device of rotor system of magnetic suspension bearing, comprise support, rotor and be enclosed within described epitrochanterian magnetic suspension bearing, described magnetic suspension bearing is arranged in the sleeve, it is characterized in that, in described support, also be provided with the actuating coil that magnetic flow liquid and generation run through the magnetic field of described magnetic flow liquid, described magnetic flow liquid is sealed in sleeve, between spacer ring and the inner casing, and seal with seal ring, described actuating coil is arranged on spacer ring, in the housing that right shell and left side shell surround, actuating coil is on coil rack in the housing, shell is fixed on the described support outside the described left side, described inner casing is fixed on the described sleeve, shell is provided with outer cantilever lever outside the described left side, be provided with interior cantilever lever in described inner casing, the other end of described interior cantilever lever and outer cantilever lever is connected on the land.
The bearing device of rotor system of magnetic suspension bearing of the present invention comprises magnetic suspension bearing and the magnetic flow liquid that directly contacts with magnetic suspension bearing, directly contacts with magnetic flow liquid by bearing, thereby suppresses the vibration that bearing produces.Adopt the mode of cantilever lever to be connected between magnetic suspension bearing and the support, cantilever lever just is equivalent to spring, land then mainly is together in series cantilever lever, transmit supporting force, cantilever lever plays the interconnect function with support on the one hand, magnetic suspension bearing is fixed on the rotor and concentric with rotor, simultaneously, cantilever lever has elastic reaction again, and when rotor oscillation, magnetic suspension bearing also vibrates.
At work, thus can produce magnetic flow liquid in the middle of the relative movement extruding between magnetic suspension bearing and bearing produces damping force and effectively suppress to vibrate.
Description of drawings
Fig. 1 is an extruding type MR damper erection drawing of the present invention.
Fig. 2 is an extruding type MR damper magnetic circuit schematic representation of the present invention.
Fig. 3 is an extruding type MR damper magnetic field emulation schematic representation of the present invention.
Among the figure: 1, support, 2, right shell, 3, outer trim ring screw, 4, outer trim ring, 5, interior trim ring, 6, interior trim ring screw, 7, seal ring, 8, sleeve, 9, the magnetic suspension bearing trim ring, 10, sensor stand, 11, sensor, 12, the magnetic suspension bearing coil, 13, copper ring, 14, rotor silicon steel plate group, 15, rotor, 16, magnetic suspension bearing silicon steel plate group, 17, the sensor stand screw, 18, magnetic flow liquid, 19, outer spacer ring, 20, the liquid filling hole packing ring, 21, the liquid filling hole screw, 22, the coil seal ring, 23, coil rack, 24, actuating coil, 25, retainer ring, 26, land, 27, cantilever lever, 28, nut, 29, the sleeve seal circle, 30, the auxiliary bearing screw, 31, the auxiliary bearing bearing, 32, auxiliary bearing, 33, commentaries on classics is from sleeve, and 34, the auxiliary bearing lid, 35, axle sleeve, 36, inner casing 37, inner split ring, 38, left side shell, 39, the shell screw.
Embodiment
Rotor bearing is on magnetic suspension bearing, and magnetic suspension bearing is bearing on the MR damper.Rotor-support-foundation system comprises that rotor 15 is located by rotor sleeve 33, and rotor silicon steel plate group 14 is housed on the rotor sleeve 33, and the top has magnetic suspension bearing silicon steel plate group 16 corresponding; At rotor 15 right-hand members copper ring 13 is housed, plays effect every magnetic; At rotor 15 lefts axle sleeve 35 is housed, auxiliary bearing 32 is fixed on the auxiliary bearing bearing 31 by auxiliary bearing screw 30, plays the certain protection effect.Magnetic suspension bearing silicon steel plate group 16 is wound with magnetic suspension bearing coil 12, forms magnetic suspension bearing with the magnetic suspension bearing trim ring, and is fixed between inside and outside shell 37 and the sleeve 8.Magnetic flow liquid 18 is sealed between sleeve 8, outer spacer ring 19 and the inside and outside shell 36, finishes sealing by seal ring 7.Outer spacer ring 19 top MR damper actuating coils 24 and prevent that with coil seal ring 22 magnetic flow liquid from infiltrating on coil rack 23.Outer spacer ring 19 and right shell 2 and inner casing 36 surround a housing, and the interior MR damper actuating coil 24 of housing is on coil rack 23, and this housing is fixed on the pedestal 1 by cantilever lever 27 and land 26.The cantilever support system is bearing in rotor system of magnetic suspension bearing on the MR damper by cantilever lever 27 and land 26, and cantilever lever just is equivalent to spring, and land 26 then mainly is together in series cantilever lever 27, transmits supporting force.Because the axial space of rotor is limited, so adopted the side cantilever supporting system,, the rigidity of side cantilever supporting system has been carried out design of Simulation simultaneously in order to satisfy deformation requirements, determined the range in stiffness requirement.For being symmetrically distributed, the number of side cantilever bar is 8 multiple (interior cantilever lever adds outer cantilever lever), the number 8 of side cantilever bar.Cantilever lever is 4 promptly, 4 of outer cantilever levers.MR damper is mainly utilized the rheological properties of magnetic flow liquid, so its magnetic circuit must pass through magnetic flow liquid, promptly She Ji main magnetic circuit is shown in Fig. 2 arrow.The whole magnetic circuit of formation afterwards of connect with 2 magnetic resistance on magnetic flow liquid 18, inner casing 36 and the right shell again after the leakage reluctance parallel connection of the magnetic resistance of sleeve 8 and magnetic suspension bearing.MR damper magnetic field emulation schematic representation as shown in Figure 3.
Multi-sealed protective measure has been taked in the sealing of magnetic flow liquid.Magnetic flow liquid 18 is sealed between inner split ring 37, outer spacer ring 19 and the inner casing 36.Between spacer ring 19 and inner casing 36, outer spacer ring 19 and right shell 2, right shell 2 and outer trim ring 4, left side shell 37 and outer trim ring 4, inner casing 36 and interior trim ring 5 and sleeve 8 and the interior trim ring 5 seal ring 7 is arranged all outside, between sleeve 8 and inner split ring 37 and inside and outside shell 36, sleeve seal circle 29 is housed, and finishes connection and sealing with interior trim ring screw 6 and outer trim ring screw 3.Because magnetic flow liquid needs to add or change in the course of the work, and liquid filling hole screw 21 is housed on the shell outside the right side, has liquid filling hole packing ring 20 to finish sealing with shell connection place outside the right side.
During work, by the vibration displacement size of sensor 11 monitoring rotors 15, thereby the damping size of the size regulation and control magnetic flow liquid then by switch control MR damper actuating coil 24 electric currents suppresses the vibration of rotor.
Claims (1)
1. the bearing device of a rotor system of magnetic suspension bearing, comprise support (1), rotor (15) and be enclosed within described epitrochanterian magnetic suspension bearing, described magnetic suspension bearing is arranged in the sleeve (8), it is characterized in that, the actuating coil (24) that in described support (1), also is provided with magnetic flow liquid (18) and produces the magnetic field of running through described magnetic flow liquid, described magnetic flow liquid (18) is sealed between sleeve (8), outer spacer ring (19) and the inner casing (36), and seals with seal ring (7).Described actuating coil is arranged in the housing that spacer ring (19), right shell (2) and left shell (38) surround, actuating coil (24) is on coil rack (23) in the housing, shell outside the described left side (38) is fixed on the described support (1), described inner casing (36) is fixed on the described sleeve (8), shell outside the described left side (38) is provided with outer cantilever lever, be provided with interior cantilever lever in described inner casing (36), the other end of described interior cantilever lever and outer cantilever lever is connected on the land (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010259763XA CN101907132B (en) | 2010-08-20 | 2010-08-20 | Supporting device for rotor system of magnetic suspension bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010259763XA CN101907132B (en) | 2010-08-20 | 2010-08-20 | Supporting device for rotor system of magnetic suspension bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101907132A true CN101907132A (en) | 2010-12-08 |
| CN101907132B CN101907132B (en) | 2012-11-21 |
Family
ID=43262674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010259763XA Active CN101907132B (en) | 2010-08-20 | 2010-08-20 | Supporting device for rotor system of magnetic suspension bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101907132B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307103A (en) * | 2013-05-08 | 2013-09-18 | 南京航空航天大学 | Combined support device of magnetic bearing rotor system |
| CN104314974A (en) * | 2014-10-12 | 2015-01-28 | 张广 | Magnetorheological effect-based cylindrical roller bearing with integrated damper |
| CN104454991A (en) * | 2014-12-23 | 2015-03-25 | 江苏理工学院 | Self-induction magnetic bearing |
| CN104632890A (en) * | 2015-01-13 | 2015-05-20 | 北京航空航天大学 | FDOF (four degrees of freedom) radial magnetic bearing with damping coil integrated structure |
| CN105333009A (en) * | 2015-12-09 | 2016-02-17 | 南京磁谷科技有限公司 | Magnetic suspension bearing isolation rotor structure |
| CN106678177A (en) * | 2017-01-05 | 2017-05-17 | 上海应用技术大学 | Controllable compound damping and active vibration reducing magnetofluid bearing |
| WO2017097010A1 (en) * | 2015-12-11 | 2017-06-15 | 珠海格力节能环保制冷技术研究中心有限公司 | Magnetic bearing frame and magnetic bearing |
| CN110925307A (en) * | 2019-12-05 | 2020-03-27 | 中国航发四川燃气涡轮研究院 | Auxiliary bearing system suitable for magnetic suspension bearing-rotor system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0875685A2 (en) * | 1997-04-28 | 1998-11-04 | Ntn Corporation | Combined externally pressurized gas-magnetic bearing assembly and spindle device utilizing the same |
| CN1372086A (en) * | 2001-02-28 | 2002-10-02 | 汪建晓 | Magnetic flow change liquid damper for control of rotary machinery rotor vibration |
| CN101382168A (en) * | 2008-10-15 | 2009-03-11 | 南京航空航天大学 | Metal-rubber ring combination support high-speed rotating system for magnetic suspension bearing |
-
2010
- 2010-08-20 CN CN201010259763XA patent/CN101907132B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0875685A2 (en) * | 1997-04-28 | 1998-11-04 | Ntn Corporation | Combined externally pressurized gas-magnetic bearing assembly and spindle device utilizing the same |
| CN1372086A (en) * | 2001-02-28 | 2002-10-02 | 汪建晓 | Magnetic flow change liquid damper for control of rotary machinery rotor vibration |
| CN101382168A (en) * | 2008-10-15 | 2009-03-11 | 南京航空航天大学 | Metal-rubber ring combination support high-speed rotating system for magnetic suspension bearing |
Non-Patent Citations (1)
| Title |
|---|
| 《武汉理工大学学报.信息与管理工程版》 20100430 吴友海等 支承磁悬浮轴承的径向磁流变阻尼器设计 第32卷, 第2期 2 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307103A (en) * | 2013-05-08 | 2013-09-18 | 南京航空航天大学 | Combined support device of magnetic bearing rotor system |
| CN104314974A (en) * | 2014-10-12 | 2015-01-28 | 张广 | Magnetorheological effect-based cylindrical roller bearing with integrated damper |
| CN104454991A (en) * | 2014-12-23 | 2015-03-25 | 江苏理工学院 | Self-induction magnetic bearing |
| CN104632890A (en) * | 2015-01-13 | 2015-05-20 | 北京航空航天大学 | FDOF (four degrees of freedom) radial magnetic bearing with damping coil integrated structure |
| CN104632890B (en) * | 2015-01-13 | 2017-04-12 | 北京航空航天大学 | FDOF (four degrees of freedom) radial magnetic bearing with damping coil integrated structure |
| CN105333009A (en) * | 2015-12-09 | 2016-02-17 | 南京磁谷科技有限公司 | Magnetic suspension bearing isolation rotor structure |
| CN105333009B (en) * | 2015-12-09 | 2018-04-06 | 南京磁谷科技有限公司 | Magnetic suspension bearing isolates rotor structure |
| WO2017097010A1 (en) * | 2015-12-11 | 2017-06-15 | 珠海格力节能环保制冷技术研究中心有限公司 | Magnetic bearing frame and magnetic bearing |
| CN106678177A (en) * | 2017-01-05 | 2017-05-17 | 上海应用技术大学 | Controllable compound damping and active vibration reducing magnetofluid bearing |
| CN106678177B (en) * | 2017-01-05 | 2019-10-25 | 上海应用技术大学 | A kind of controllable composite damping active damping magnetic fluid bearing |
| CN110925307A (en) * | 2019-12-05 | 2020-03-27 | 中国航发四川燃气涡轮研究院 | Auxiliary bearing system suitable for magnetic suspension bearing-rotor system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101907132B (en) | 2012-11-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101907132B (en) | Supporting device for rotor system of magnetic suspension bearing | |
| CN106594172B (en) | Semi- active control type vertical vibration isolation device with quasi- zero stiffness | |
| JP5350565B2 (en) | Self-powered / self-sensitive magnetic fluid damper | |
| CN105909721B (en) | A kind of magnetorheological intelligent vibration damping device of stiffness at the end wideband | |
| WO2016148011A1 (en) | Dynamic damper, vibration isolator, and method for manufacturing magnetic viscous elastomer | |
| CN203770501U (en) | Electromagnetic suspension type dynamic shock absorber | |
| US9225222B2 (en) | Magnetic bearing apparatus and method for varying shaft thrust load support in induction motors and other rotating machinery | |
| CN104455143A (en) | Magnetic damper with floating magnetic ring | |
| CN102777525A (en) | Eddy current energy consumption damper for suppressing axial vibration | |
| Zhang et al. | Vibration analysis of coupled bending-torsional rotor-bearing system for hydraulic generating set with rub-impact under electromagnetic excitation | |
| CN103307103A (en) | Combined support device of magnetic bearing rotor system | |
| CN104747651A (en) | Paralleling model semi-active vibration isolator | |
| CN102022473A (en) | Ultra wideband adjustable electromagnetic damping vibration isolating device | |
| CN104179868A (en) | Active and passive integrated electromagnetic vibration isolation device | |
| CN107989896A (en) | Axial and radial integration magnetic levitation bearing system | |
| Berg et al. | Design and test of a novel magnetic lead screw for active suspension system in a vehicle | |
| CN106763474B (en) | A kind of all-metal micro-vibration control device of active-passive integratedization | |
| CN103675351A (en) | Novel inductive magnetic liquid acceleration sensor | |
| CN106812859B (en) | Double-spring magneto-rheological vibration damper | |
| CN104048436A (en) | Linear integral stirling cryocooler | |
| CN202228587U (en) | Magnetorheological damper with multi-magnet-coil structure | |
| Snamina et al. | Magnetic spring as the element of vibration reduction system | |
| Gouws | Energy Management by means of SMD Model Analysis for AMB Systems with Eccentricity | |
| CN103056097B (en) | Electric type vibration source generator | |
| CN104675903A (en) | Hydraulic damper capable of generating electricity |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |