CN105840657A - Intelligent controllable bearing and method for controlling rotor vibration - Google Patents
Intelligent controllable bearing and method for controlling rotor vibration Download PDFInfo
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- CN105840657A CN105840657A CN201610352948.2A CN201610352948A CN105840657A CN 105840657 A CN105840657 A CN 105840657A CN 201610352948 A CN201610352948 A CN 201610352948A CN 105840657 A CN105840657 A CN 105840657A
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- bearing
- magnetic field
- magnetic
- floating ring
- oil film
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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
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/53—Means for adjusting damping characteristics by varying fluid viscosity, e.g. electromagnetically
- F16F9/535—Magnetorheological [MR] fluid dampers
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The invention provides an intelligent controllable bearing and a method for controlling rotor vibration. The bearing comprises an excitation system, a bearing block, a bearing shell, a bearing bush and a floating ring. Magnetorheological fluid is adopted as a lubricating agent. After the magnetorheological fluid is supplied, the shaft neck and the inner surface of the floating ring form a lubricating oil film, namely, an inner oil film, and the outer surface of the floating ring and the bearing bush form a lubricating oil film, namely, an outer oil film. The property of the magnetorheological fluid is changed by the magnetic field generated by the excitation system, the property of the lubricating oil films is further changed, and intelligent behaviors of the bearing are achieved. The floating ring rotates at the speed lower than that of a rotary shaft. By means of the external magnetic field, stiffness and damping characteristics of the bearing are changed, so that vibration control of a rotor is achieved. The method is suitable for rotor occasions sensitive to vibration, and semi-active control over a rotor system can be easily achieved.
Description
Technical field
The present invention relates to hydrodynamic lubrication and intellectual material field, in particular it relates to a kind of intelligent controlled bearing, especially
It is a kind of controlled floating-ring bearing of the intelligence using magnetic flow liquid to lubricate, and will be used for controlling the side of rotor oscillation
Method.
Background technology
Along with technological progress, flowing molten iron body (Ferrofluid), magnetic flow liquid (Magnetorheological fluid) etc. can be subject to
External magnetic field and change the intelligent liquid of character and start in the industrial production extensively to apply.The feature of this type of fluid is by ferromagnetic
Property granule be scattered in certain substrate, when there being externally-applied magnetic field, ferromagnetic particle is affected by magnetic fields produces accumulation, chaining etc.
Change, fluid can change the most rapidly character.And after magnetic field removes, fluid can recover one within the extremely short time
As characteristic, and can be repeated several times use.Meanwhile, by changing the size of magnetic-particle, the composition of substrate and adding table
Face activating agent etc., thus it is possible to vary the character of fluid is to meet multiple needs.This type of fluid have been used for control, automobile, sealing,
Multiple field such as machining, has wide application prospects.
Modern mechanical uses rotor-support-foundation system in a large number, particularly at the aspects such as transmission, energy conversion, driving, rotor
System is one of core component in mechanical system；On the other hand, due to rotor self-characteristic, it is inevitably
Vibration can be produced, become one of parts that rise of vibration in mechanical system.
Therefore, researcher is exploring the method efficiently controlling vibration of rotor system always, and one of numerous methods are
Utilize intellectual material, such as magnetic flow liquid, it is achieved the control to rotor oscillation.In existing research, magnetic flow liquid is
Being introduced in squeeze film damper, becoming can be with the controlled film damper of damping adjusting, in roller bearings
Rotor-support-foundation system achieves certain applications.But, at hydrodynamic lubrication bearing, in sliding bearing, magnetorheological
Liquid is the most rarely seen application.At rare research magnetic flow liquid in the research that sliding bearing controls, mainly face two
Individual weakness: one be magnetic flow liquid after having externally-applied magnetic field, its frictional behaviour raise, axle journal can be caused bigger friction,
Reduce rotor efficiency；Two is that magnetic flow liquid self shear-thinning property determines, under high shear rate, performance can be serious for it
Decline, therefore the kind of bearings of existing research is almost the most effective.The two weakness limits employing magnetic current
The application in rotor oscillation control of the hydrodynamic lubrication bearing of change liquid lubrication.
In the patent retrieved, magnetic flow liquid contributes to antivibrator without exception for bearing control, application
In rolling bearing, such as Chinese invention patent application: a kind of circle with integrated damper based on magnetic rheology effect
Post roller bearing, application number: 201410564410.9, this application relates to a kind of based on magnetic rheology effect having collection
Become antivibrator cylinder roller bearing, this device by outer ring, inner ring, magnet exciting coil, sealing axle sleeve, magnetic flow liquid,
Cage ring, cylindrical roller, retainer form.And Chinese invention patent application: self induction magnetic bearing, application number:
201410807582.4, that application discloses a kind of self induction magnetic bearing, produce faradic current when bear vibration,
And by the change in magnetic field of the magnetic flow liquid that is arranged in around rolling bearing, provide extra damping for bearing.This
Two kinds of patents all use arranges the method for magnetic flow liquid to come for bearing to introduce extra damping outside rolling bearing, different
It is that outside Section 1 patent utilization, power supply realizes semi-active control, and Section 2 patent utilization faradism realizes passive control
System.These two kinds of patents are used to rolling bearing, the shortcoming not having damping effect mainly for rolling bearing self.?
In two patents, all damping is adjusted, it is impossible to regulation bearing rigidity；Meanwhile, Section 2 patent is because using quilt
Dynamic control methods, it is impossible to artificially change bearing damp.These weakness can weaken patent application effect and limit answering of patent
Use occasion.On the other hand, in many industrial applications, such as gas turbine, turbine etc., due to loading ability of bearing
Greatly, it is impossible to use rolling bearing, it is necessary to use hydrodynamic lubrication bearing, and present stage is not the most suitable for these
The controlled bearing of intelligence closed.Although hydrodynamic lubrication bearing self has stiffness and damping characteristic, but in some applied field
Closing, as relatively big in impact, rotor is crossed critical etc., it is still desirable to can be that bearing introduces extra stiffness and damps, make now
Rotor-support-foundation system energy even running.
Summary of the invention
For defect of the prior art, as can not be applied to fluid bearing rotor-support-foundation system occasion, the present invention carries
Supply a kind of floating-ring bearing using magnetic flow liquid to lubricate and control method thereof, utilize the floating ring installed in floating-ring bearing
Forming inside and outside two-layer oil film, floating ring is with less than axle rotational speed simultaneously, thus realizes under greater efficiency turning at a high speed
The purpose of sub-vibration control.
According to the first aspect of the invention, it is provided that a kind of intelligent controlled bearing, including excitation system, bearing block, axle
Holding housing, bearing shell and floating ring, floating ring is placed on axle journal, for the bearing shell being installed on bear box, bear box outside floating ring
It is arranged in bearing block, is excitation system outside bearing block；Described bearing also includes: as the magnetic flow liquid of lubricant；Supply
After entering magnetic flow liquid, axle journal forms the interior oil film of two-layer lubricating oil film with floating ring inner surface, floating ring outer surface respectively with bearing shell
With outer oil film, the magnetic field that excitation system produces changes magnetic flow liquid character, and then changes lubricating oil film character, it is achieved bearing
Intelligent behavior；The speed of the described floating ring rotating shaft to install in using less than bearing rotates.
Preferably, described excitation system comprises yoke, coil and magnetic pole, and uses unidirectional current as exciting current；Wherein:
Coil leads to exciting current and produces magnetic field, and magnetic pole is used for strengthening magnetic field, and yoke is used for strengthening magnetic field path；Described magnetic pole uses
The most opposed mode in N-S pole is also looped around around bear box, for providing uniform magnetic field for bearing.
It is highly preferred that described coil is by copper paint envelope curve coiling；Described magnetic pole, yoke all use ingot iron or mild steel
Make, to strengthen magnetic field intensity.
Preferably, described bearing block includes: upper half seat, lower half seat, left end cap and right end cap, wherein: upper half seat with under
Half connection, is used for fixing bear box each parts of spring bearing；Upper half seat is provided with fuel feed hole, for bearing
Feed magnetic flow liquid；Left end cap, right end cap are connected with upper half seat, lower half seat, are equipped with back on left end cap with right end cap
Oilhole, spill port is collectively forming magnetic flow liquid circulation-supplied path with the oil supplying hole on upper half seat.
It is highly preferred that described bearing block is manufactured by nonferromugnetic material so that magnetic field through and do not change magnetic field intensity and
Distribution.
Preferably, described bear box includes that upper and lower two parts, upper and lower two parts are respectively mounted one block of semicircle bearing shell component；
Have oil duct in bear box and flow into passage as magnetic flow liquid.
It is highly preferred that described bear box is manufactured by nonferromugnetic material, so that magnetic field passes through and do not changes magnetic field intensity
And distribution, ensure intensity and the hardness of bear box installation and operation needs simultaneously.
Preferably, described bearing shell is made up of two blocks of semicircle bearing shell components, and is manufactured by babbit, its wear-resisting and not shadow
Ring Distribution of Magnetic Field and intensity；Offering oil supplying hole and oil supply tank on bearing shell, outside magnetic flow liquid is entered by oil supplying hole simultaneously
Entering bearing, oil supply tank makes fuel feeding evenly.
Preferably, described floating ring is manufactured by high-abrasive material, and floating ring material selects according to specifically used occasion；
The material of described floating ring is bronze, with oil film in allowing magnetic field to enter, thus oil film character in changing, now inside and outside
Oil film character is all changed by magnetic field, thus improves bearing controllability；
Or, the material of described floating ring is surface hardening carbon steel, and floating ring shielding makes magnetic field cannot be introduced into interior oil film, to avoid
Interior oil film magnetic flow liquid is affected by magnetic fields, thus reduces the magnetic flow liquid friction to axle journal.
Preferably, described magnetic flow liquid, with lubricating oil as base fluid, adds carbonyl iron dust granule and makes.
According to another aspect of the present invention, it is provided that a kind of side using the controlled bearing control rotor oscillation of above-mentioned intelligence
Method, comprises the steps:
The first step, open oil pump, bearing is carried out magnetic flow liquid circulation；
Second step, startup rotor；
If the 3rd step rotor oscillation is excessive, open DC source, excitation system is powered；
4th step, evaluation rotor oscillation control situation, if not yet reaching requirement, regulating DC source, strengthening exciting current；
If the 5th step excess vibration was that critical speed causes for rotor, after rotor speed crosses critical speed, then reduction or
Removing exciting current, now bearing runs in common floating-ring bearing mode；If rotor oscillation need to be controlled always, protect
Hold exciting current until rotor is out of service.
Compared with prior art, the present invention has a following beneficial effect:
1. the present invention is to use the hydrodynamic lubrication bearing of magnetic flow liquid lubrication, is different from present stage employing magnetic flow liquid real
The various rolling bearings of existing vibration control, present invention utilizes that hydrodynamic lubrication bearing capacity is big, damping characteristic is good
Advantage, and realize its intelligent behavior on this basis, is i.e. adjusted characteristics such as the rigidity of bearing, dampings, thus real
Now turn self-excited oscillation control；
2. the present invention is floating ring formula bearing, owing to floating ring rotates with the speed less than rotating shaft, and the relative shear in inside and outside oil film
Rate is less than plain bearing so that the shear-thinning effect of magnetic flow liquid is effectively suppressed, and this is different from existing part and uses
Magnetic flow liquid lubrication plain bearing, shear-thinning effect make its at high speeds controlling reduce rapidly, and this
Bright due to the existence of floating ring, can apply to the higher occasion of rotating speed；
No matter 3. which kind of material floating ring uses, interior oil film is because from magnetic pole farther out, wherein magnetic field intensity is below outer oil film, can
To reduce the high friction square that plain bearing uses magnetic flow liquid lubrication to cause.
Accompanying drawing explanation
The detailed description made non-limiting example with reference to the following drawings by reading, other of the present invention is special
Levy, purpose and advantage will become more apparent upon:
Fig. 1 is the structure chart of one embodiment of the present invention,
Fig. 2 is the enforcement system diagram of one embodiment of the present invention；
Fig. 3 is the profile of one embodiment of the present invention, illustrates excitation system structure；
Fig. 4 is the profile of one embodiment of the present invention, illustrates interior oil film, the position of outer oil film；
In figure: yoke 1, coil 2, magnetic pole 3, bearing block 4, bear box 5, bearing shell 6, floating ring 7, bearing 10
(comprising parts 1～7), oil pump 11, DC source 12, rotating shaft 13, outer oil film 14, interior oil film 15；
101 is bear box spill port, and 102 is floating ring oil supplying hole (totally 4), and 103 is bearing shell oil supplying hole (two pieces of axles
Watts totally 4), 104 is bear box oil supplying hole (4), and 105 is bearing block oil supplying hole.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in detail.Following example will assist in those skilled in the art
Member is further appreciated by the present invention, but limits the present invention the most in any form.It should be pointed out that, the common skill to this area
For art personnel, without departing from the inventive concept of the premise, it is also possible to make some deformation and improvement.These broadly fall into
Protection scope of the present invention.
As Figure 1-Figure 4, a kind of intelligent controlled bearing, including: yoke 1, coil 2, magnetic pole 3, bearing block 4,
Bear box 5, bearing shell 6, floating ring 7, and the magnetic flow liquid as lubricant, wherein:
Yoke 1, coil 2, magnetic pole 3 collectively constitute excitation system (as shown in Figure 3), and coil 2 leads to exciting current and produces
Magnetic field, magnetic pole 3 is used for strengthening magnetic field, and yoke 1 is used for strengthening magnetic field path；Floating ring 7 is placed on axle journal, outside floating ring 7
Face is installed on the bearing shell 6 on bear box 5, and bear box 5 is arranged in bearing block 4, and bearing block 4 is outer is by yoke
1, coil 2, the excitation system of magnetic pole 3 composition；
After feeding magnetic flow liquid by oil pump 11, axle journal is with floating ring 7 inner surface, floating ring 7 outer surface with bearing shell 6 respectively
Forming the interior oil film 15 of two-layer lubricating oil film and outer oil film 14, the magnetic field that excitation system produces changes magnetic flow liquid character,
And then change lubricating oil film character, it is achieved the intelligent behavior of bearing 10；In bearing 10 work process, floating ring 7 is with low
Rotate in rotating shaft 13 speed, on the one hand reduce journal friction square in interior oil film 15, on the one hand reduce outer oil film 14
Middle shear rate, thus part overcomes magnetic flow liquid friction big and the adverse effect of shear thinning, improves the controlled of bearing 10
Property.Produce magnetic field by excitation system, it is achieved intelligent behavior, i.e. change the rigidity of bearing, damping, bearing capacity characteristics,
Realize bearing semi-active control, and then rotor-support-foundation system is carried out vibration control.
In a preferred embodiment, described bearing block 4 includes upper half seat, lower half seat, left end cap and right end cap, wherein:
Upper half seat is positioned by pin with lower half seat, bolt is connected, and is used for fixing bear box 5 each parts of spring bearing 10；
Upper half seat is provided with bearing block oil supplying hole 105 for feeding magnetic flow liquid to whole bearing；Left end cap passes through with right end cap
Screw is connected with upper and lower half, and is equipped with bear box spill port 101, bear box on left end cap, right end cap
Spill port 101 is collectively forming magnetic flow liquid circulation-supplied path with the bearing block oil supplying hole 105 on upper half seat.
As one preferred embodiment, described bearing block 4, by the nonferromugnetic material manufacture of aluminium alloy or bronze, can make
Magnetic field passes through and does not change magnetic field intensity and distribution, ensures intensity and the hardness of bear box 5 installation and operation needs simultaneously.
As it is shown in figure 1, described bear box 5 is divided into upper and lower two parts and is connected by pin location, bolt；Upper and lower two
Part is respectively mounted one piece of semicircle bearing shell 6；Bear box oil supplying hole 104 is had as magnetic flow liquid in bear box 5
Flow channel.
As one preferred embodiment, described bear box 5, can by the nonferromugnetic material manufacture of aluminium alloy or bronze
Make magnetic field pass through and do not change magnetic field intensity and distribution.
As one preferred embodiment, described bearing shell 6 is made up of two pieces of semicircle bearing shells, and is manufactured by babbit,
It is wear-resisting and does not affect Distribution of Magnetic Field and intensity；Meanwhile, two pieces of semicircle bearing shells offer bearing shell oil supplying hole 103 respectively
And oil supply tank, wherein: outside magnetic flow liquid enters bearing 10 by bearing shell oil supplying hole 103, and oil supply tank makes fuel feeding more equal
Even.
As one preferred embodiment, described floating ring 7 is manufactured by high-abrasive material, wherein: floating ring 7 outer surface and axle
Watts 6 inner surfacies form one layer of lubricating oil film, outer oil film 14；Floating ring 7 inner surface forms one layer of lubricating oil with journal surface
Film, i.e. interior oil film 15 (as shown in Figure 4).
As one preferred embodiment, the material of described floating ring 7 can be bronze, with oil film 15 in allowing magnetic field to enter,
Thus oil film 15 character in changing, the most inside and outside oil film 15,14 character is all changed by magnetic field, thus improves bearing 10
Controllability.
As one preferred embodiment, the material of described floating ring 7 can also be for surface hardening carbon steel, and floating ring shielding makes magnetic
Field cannot be introduced into interior oil film 15, and to avoid interior oil film 15 magnetic flow liquid affected by magnetic fields, thus it is countershaft to reduce magnetic flow liquid
The friction of neck.
As one preferred embodiment, described bear box 5 is respectively arranged with a bear box spill port 101
With four bear box oil supplying holes 104；Described floating ring 7 is provided with four floating ring oil supplying holes 102；At described bearing shell 6
On be provided with bearing shell oil supplying hole 103 (on two pieces of semicircle bearing shells totally four)；Described bearing block 4 top is provided with an axle
Bearing oil supplying hole 105, a bear box spill port 101 is respectively set at the two ends of described bearing block 4.Oil pump 11 works
After, magnetic flow liquid sequentially passes through bearing block oil supplying hole 105, bear box oil supplying hole 104, bearing shell oil supplying hole 103 arrive
Outer oil film 14, then arrive interior oil film 15 by floating ring oil supplying hole 102；Inside and outside oil film 15,14 produces end and lets out, magnetic current
Become liquid and finally flow back to oil pump 11 through bear box spill port 101, thus bearing 10 is realized magnetic flow liquid circulation-supplied.
As in figure 2 it is shown, in the present embodiment, described excitation system carries out excitation, by oil pump 11 by DC source 12
Magnetic flow liquid is pumped into described bearing 10；Concrete:
Magnetic flow liquid is pumped into bearing block fuel feed hole 105 by oil pump 11, and magnetic flow liquid arrives through bearing shell oil supplying hole 103 and fills
Scold outer oil clearance, form outer oil film 14 (as shown in Figure 4), then arrive via floating ring oil supplying hole 102 and be full of interior oil
Intermembrane space, oil film 15 (as shown in Figure 4) in being formed, magnetic flow liquid is released, through bear box by bearing 10 two ends therebetween
Spill port 101 flows back in oil pump 11 (as shown in Figure 4).
As a preferred implementation, described excitation system changes magnetic field intensity by regulation DC source 12, thus
Control described bearing 10 whether vibration be controlled and regulate and control controlling extent.
As it is shown on figure 3, described excitation system is outside described bearing 10, and four magnetic poles 3 are isogonism in circumference.
As a preferred implementation, four described magnetic poles 3 are installed in the most opposed mode in N-S pole.
After being passed through magnetic flow liquid in bearing 10 described in the present embodiment, when without externally-applied magnetic field, bearing 10 is by common sliding
Dynamic bearing mode is run；When, after externally-applied magnetic field, magnetic flow liquid character changes and then causes bearing 10 characteristic to change
Become；The present embodiment utilizes externally-applied magnetic field to change bearing rigidity, damping characteristic, thus realizes the vibration control to rotor.
Use above-mentioned bearing 10 to realize the vibration control of rotor, specifically include following steps:
The first step, open oil pump 11, bearing 10 is carried out magnetic flow liquid circulation；
Second step, startup rotor, make rotating shaft 13 rotate；
If the 3rd step rotor oscillation is excessive, opens DC source 12, excitation system is powered；
4th step, evaluation rotor oscillation control situation, if not yet reaching requirement, regulate DC source 12, strengthen excitation electricity
Stream；
If the 5th step excess vibration was that critical speed causes for rotor, after rotor speed crosses critical speed, can reduce or
Removing exciting current, now bearing 10 runs in common floating-ring bearing mode；
If rotor oscillation need to be controlled by the 6th step always, keep exciting current until rotor is out of service.
The present embodiment uses magnetic flow liquid simultaneously as lubricant and control device, it is possible to achieve the characteristic such as rigidity to bearing
Damping etc. is adjusted, thus realizes rotor oscillation control；Use floating ring formula bearing, owing to floating ring is with the speed less than rotating shaft
Degree rotates, and the relative shear rate in inside and outside oil film is less than plain bearing so that the hydraulic performance decline of magnetic flow liquid is effectively pressed down
System, it means that kind of bearings can apply to the higher occasion of rotating speed；No matter which kind of material floating ring uses, interior oil film because of
From magnetic pole farther out, wherein magnetic field intensity is below outer oil film, can reduce plain bearing and use magnetic flow liquid lubrication to lead
The high friction square caused.
The present invention is without active control, and without frictional dissipation, band self induction function, it is ensured that rotor is at high-speed working condition
The most efficiently, stably work.
Above the specific embodiment of the present invention is described.It is to be appreciated that the invention is not limited in
Stating particular implementation, those skilled in the art can make various deformation or amendment within the scope of the claims,
This has no effect on the flesh and blood of the present invention.
Claims (10)
1. the controlled bearing of intelligence, including: excitation system, bearing block, bear box, bearing shell and floating ring, floating ring
Being placed on axle journal, for the bearing shell being installed on bear box outside floating ring, bear box is arranged in bearing block, outside bearing block
For excitation system；It is characterized in that, also include: as the magnetic flow liquid of lubricant；Feed after magnetic flow liquid, axle journal with
Floating ring inner surface, floating ring outer surface and bearing shell form the interior oil film of two-layer lubricating oil film and outer oil film respectively, and excitation system is produced
Raw magnetic field changes magnetic flow liquid character, and then changes lubricating oil film character, it is achieved the intelligent behavior of bearing；Described floating ring
The speed of the rotating shaft to install in using less than bearing rotates.
The intelligent controlled bearing of one the most according to claim 1, it is characterised in that described excitation system comprises magnetic
Yoke, coil and magnetic pole, and use unidirectional current as exciting current；Wherein: coil leads to exciting current and produces magnetic field, magnetic pole
For strengthening magnetic field, yoke is used for strengthening magnetic field path；Described magnetic pole uses the most opposed mode in N-S pole and is looped around axle
Hold casing surroundings, for providing uniform magnetic field for bearing.
The intelligent controlled bearing of one the most according to claim 2, it is characterised in that described coil is by copper enamel-cover
Line coiling；Described magnetic pole, yoke all use ingot iron or mild steel to make, to strengthen magnetic field intensity.
The intelligent controlled bearing of one the most according to claim 1, it is characterised in that described bearing block includes: on
Half, lower half seat, left end cap and right end cap, wherein: upper half seat is connected with lower half seat, be used for fixing bear box and propping up
The support each parts of bearing；Upper half seat is provided with fuel feed hole, for feeding magnetic flow liquid to bearing；Left end cap, right end cap with
Upper half seat, lower half seat connect, and are equipped with spill port, spill port and the oil supplying hole on upper half seat on left end cap with right end cap
It is collectively forming magnetic flow liquid circulation-supplied path.
The intelligent controlled bearing of one the most according to claim 1, it is characterised in that described bear box includes
Lower two parts, upper and lower two parts are respectively mounted one block of semicircle bearing shell component；Oil duct is had as magnetorheological in bear box
Liquid flow channel.
The intelligent controlled bearing of one the most according to claim 5, it is characterised in that described bearing shell is by two pieces of semicircles
Oblique crank Z watt component forms, and is manufactured by babbit, and it is wear-resisting and does not affect Distribution of Magnetic Field and intensity；Simultaneously on bearing shell
Offering oil supplying hole and oil supply tank, outside magnetic flow liquid enters bearing by oil supplying hole, and oil supply tank makes fuel feeding evenly.
7. according to the intelligent controlled bearing of the one described in any one of claim 1-6, it is characterised in that described bearing block,
Bear box, by nonferromugnetic material manufacture, makes magnetic field pass through and does not change magnetic field intensity and distribution, ensures bearing simultaneously
The intensity of housing installation and operation needs and hardness.
8. according to the intelligent controlled bearing of the one described in any one of claim 1-6, it is characterised in that described floating ring
Material is bronze, with oil film in allowing magnetic field to enter, thus oil film character in changing, now inside and outside oil film character is all by magnetic
Field changes, thus improves bearing controllability；
Or, the material of described floating ring is surface hardening carbon steel, and floating ring shielding makes magnetic field cannot be introduced into interior oil film, to avoid
Interior oil film magnetic flow liquid is affected by magnetic fields, thus reduces the magnetic flow liquid friction to axle journal.
9. according to the intelligent controlled bearing of the one described in any one of claim 1-6, it is characterised in that described magnetorheological
Liquid, with lubricating oil as base fluid, adds carbonyl iron dust granule and makes.
10. use a method for intelligent controlled bearing control rotor oscillation, its feature described in any one of claim 1-9
It is, comprises the steps:
The first step, open oil pump, bearing is carried out magnetic flow liquid circulation；
Second step, startup rotor；
If the 3rd step rotor oscillation is excessive, open DC source, excitation system is powered；
4th step, evaluation rotor oscillation control situation, if not yet reaching requirement, regulating DC source, strengthening exciting current；
If the 5th step excess vibration was that critical speed causes for rotor, after rotor speed crosses critical speed, then reduction or
Removing exciting current, now bearing runs in common floating-ring bearing mode；If rotor oscillation need to be controlled always, protect
Hold exciting current until rotor is out of service.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610352948.2A CN105840657B (en) | 2016-05-24 | 2016-05-24 | A kind of method intelligence controllable bearing and control rotor oscillation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610352948.2A CN105840657B (en) | 2016-05-24 | 2016-05-24 | A kind of method intelligence controllable bearing and control rotor oscillation |
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| CN105840657B CN105840657B (en) | 2019-04-19 |
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| CN108374840A (en) * | 2018-03-30 | 2018-08-07 | 浙江师范大学 | A kind of sliding bearing brake apparatus and control method based on magnetic rheology effect |
| CN108561426A (en) * | 2018-05-15 | 2018-09-21 | 界首市皖俊轴承有限公司 | A kind of adjustable loading bearing of rotating speed |
| CN109443642A (en) * | 2018-10-25 | 2019-03-08 | 北方华锦化学工业股份有限公司 | Turbine rotor on-line dynamic balancing disk active regulating system |
| CN109668717A (en) * | 2018-12-17 | 2019-04-23 | 南京航空航天大学 | A kind of double-layer oil film double base squeeze film damper |
| CN110566624A (en) * | 2019-09-27 | 2019-12-13 | 天津大学仁爱学院 | Semi-active vibration damper capable of phase-splitting self-adaptive control |
| CN111778092A (en) * | 2020-07-27 | 2020-10-16 | 重庆合晶能源科技有限公司 | Magnetic lubricating oil and preparation method thereof |
| CN113565867A (en) * | 2021-07-28 | 2021-10-29 | 上海交通大学 | Bearing roller self-powered monitoring device for gravitational potential energy power generation |
| CN114135582A (en) * | 2021-11-16 | 2022-03-04 | 中国矿业大学 | Magnetorheological fluid lubricated semi-active hydrostatic bearing device |
| CN114810827A (en) * | 2022-04-18 | 2022-07-29 | 重庆邮电大学 | Magnetorheological rubber intelligent sliding bearing structure and manufacturing and control method thereof |
| CN114856711A (en) * | 2022-05-12 | 2022-08-05 | 湖南科技大学 | Method and system for controlling vibration of rotor of turboshaft engine |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101135342A (en) * | 2007-07-20 | 2008-03-05 | 伍劲刚 | Hydromagnetic bearing |
| CN101482149A (en) * | 2008-12-31 | 2009-07-15 | 浙江大学 | Characteristics-controllable standby bearing apparatus of active electromagnetic bearing |
| CN101571161A (en) * | 2008-05-04 | 2009-11-04 | 刘新广 | Magnetic sliding bearing |
| CN101893035A (en) * | 2010-07-07 | 2010-11-24 | 南京航空航天大学 | Intelligent sliding bearing capable of adjusting viscosity of lubricating fluid automatically and control method thereof |
| EP2284409A1 (en) * | 2009-08-12 | 2011-02-16 | Siemens Aktiengesellschaft | Safety bearing |
| US20110309702A1 (en) * | 2010-06-21 | 2011-12-22 | Seth Adrian Miller | Electro-actuated magnetic bearings |
| CN103398100A (en) * | 2013-08-08 | 2013-11-20 | 太原科技大学 | Magnetofluid oil film bearing |
| CN103912582A (en) * | 2014-02-14 | 2014-07-09 | 浙江大学 | Magnetofluid bearing capable of adjusting viscosity of magnetofluid lubricating liquid |
| CN104613094A (en) * | 2015-01-30 | 2015-05-13 | 江苏科技大学 | Multi-layer composite bearing bush sliding bearing with oil filling chamber |
| CN204716758U (en) * | 2015-03-23 | 2015-10-21 | 太原科技大学 | The adjustable Used in Boundary Lubrication of Magnetic Fluids filmatic bearing of a kind of viscosity |
-
2016
- 2016-05-24 CN CN201610352948.2A patent/CN105840657B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101135342A (en) * | 2007-07-20 | 2008-03-05 | 伍劲刚 | Hydromagnetic bearing |
| CN101571161A (en) * | 2008-05-04 | 2009-11-04 | 刘新广 | Magnetic sliding bearing |
| CN101482149A (en) * | 2008-12-31 | 2009-07-15 | 浙江大学 | Characteristics-controllable standby bearing apparatus of active electromagnetic bearing |
| EP2284409A1 (en) * | 2009-08-12 | 2011-02-16 | Siemens Aktiengesellschaft | Safety bearing |
| US20110309702A1 (en) * | 2010-06-21 | 2011-12-22 | Seth Adrian Miller | Electro-actuated magnetic bearings |
| CN101893035A (en) * | 2010-07-07 | 2010-11-24 | 南京航空航天大学 | Intelligent sliding bearing capable of adjusting viscosity of lubricating fluid automatically and control method thereof |
| CN103398100A (en) * | 2013-08-08 | 2013-11-20 | 太原科技大学 | Magnetofluid oil film bearing |
| CN103912582A (en) * | 2014-02-14 | 2014-07-09 | 浙江大学 | Magnetofluid bearing capable of adjusting viscosity of magnetofluid lubricating liquid |
| CN104613094A (en) * | 2015-01-30 | 2015-05-13 | 江苏科技大学 | Multi-layer composite bearing bush sliding bearing with oil filling chamber |
| CN204716758U (en) * | 2015-03-23 | 2015-10-21 | 太原科技大学 | The adjustable Used in Boundary Lubrication of Magnetic Fluids filmatic bearing of a kind of viscosity |
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| CN111778092A (en) * | 2020-07-27 | 2020-10-16 | 重庆合晶能源科技有限公司 | Magnetic lubricating oil and preparation method thereof |
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| CN114135582B (en) * | 2021-11-16 | 2022-10-25 | 中国矿业大学 | Magnetorheological fluid lubricated semi-active hydrostatic bearing device |
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