CN109973518A - The control device and control method of sliding bearing bearer properties - Google Patents
The control device and control method of sliding bearing bearer properties Download PDFInfo
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- CN109973518A CN109973518A CN201910158342.9A CN201910158342A CN109973518A CN 109973518 A CN109973518 A CN 109973518A CN 201910158342 A CN201910158342 A CN 201910158342A CN 109973518 A CN109973518 A CN 109973518A
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- sliding bearing
- control device
- heat transfer
- transfer medium
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000012546 transfer Methods 0.000 claims abstract description 46
- 239000003921 oil Substances 0.000 claims abstract description 38
- 238000006073 displacement reaction Methods 0.000 claims abstract description 33
- 239000010687 lubricating oil Substances 0.000 claims abstract description 16
- 230000007423 decrease Effects 0.000 claims abstract description 4
- 238000005259 measurement Methods 0.000 claims description 8
- 230000001235 sensitizing effect Effects 0.000 claims description 5
- 230000008859 change Effects 0.000 description 8
- 238000005461 lubrication Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000006244 Medium Thermal Substances 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 206010009866 Cold sweat Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000009878 intermolecular interaction Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
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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
- F16C17/00—Sliding-contact bearings for exclusively rotary movement
- F16C17/12—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load
- F16C17/24—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load with devices affected by abnormal or undesired positions, e.g. for preventing overheating, for safety
- F16C17/243—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load with devices affected by abnormal or undesired positions, e.g. for preventing overheating, for safety related to temperature and heat, e.g. for preventing overheating
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
-
- 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
- F16C2233/00—Monitoring condition, e.g. temperature, load, vibration
-
- 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
- F16C2300/00—Application independent of particular apparatuses
- F16C2300/40—Application independent of particular apparatuses related to environment, i.e. operating conditions
- F16C2300/52—Application independent of particular apparatuses related to environment, i.e. operating conditions low temperature, e.g. cryogenic temperature
-
- 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
- F16C2300/00—Application independent of particular apparatuses
- F16C2300/40—Application independent of particular apparatuses related to environment, i.e. operating conditions
- F16C2300/54—Application independent of particular apparatuses related to environment, i.e. operating conditions high-temperature
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The invention discloses the control devices and control method of a kind of sliding bearing bearer properties.The inventive system comprises the heat transfer medium channels being arranged in inside plain bearing bush and the displacement sensor being arranged on sliding bearing axle journal, temperature sensor is provided at heat transfer medium channels, heat transfer medium channels connect heat transfer medium feedway by heat transfer medium conveyance conduit, flow valve and temperature control device are provided on heat transfer medium conveyance conduit, temperature sensor, displacement sensor, flow valve, temperature control device are all connect with controller.Controller is according to displacement data, it controls temperature control device and generates cryogenic media or high-temperature medium, the lubricating oil temperature of regional area is set to reduce or increase, increase or reduce film viscosity, to make the oil film pressure of regional area increase or decline, and then realize the control to sliding bearing bearer properties.The present invention not only can control sliding bearing bearer properties, can also handle the failure of sliding bearing appearance.
Description
Technical field:
The present invention relates to the control devices and control method of a kind of sliding bearing bearer properties, belong to sliding bearing dynamic pressure profit
Sliding technical field.
Background technique:
Sliding bearing is the important bearing carrier of large rotating machinery, and the superiority and inferiority of performance directly affects bearing rotor system
Security and stability.In the rotary machine of Turbo-generator Set, air blower, centrifuge etc, the diameter of sliding bearing, wide diameter
Just substantially stationary constant after putting into operation than geometric parameters such as, gap-ratios, sliding bearing design is run under declared working condition, bearing
Bearer properties keep constant.However, sliding bearing is in practical work process, it may appear that work high temperature or it is clammy it is equal badly
Working environment, micro-disturbance issues the bad operating status such as raw oil whirl, and rotor unbalance, thermal flexure, not right occurs
In, friction etc. failures, cause bearer properties to change.It is normal that bad operating status and failure can all make sliding bearing deviate
The declared working condition of operation needs a kind of pair of sliding bearing bearer properties to carry out to solve the problems, such as that bearer properties change
The method of control.
By hydrodynamic lubrication principle it is found that sliding bearing bearer properties and oil film pressure field are closely related.Ignoring oil film thickness
Under the influence of degree, the Reynolds equation of available oil film bearings pressure distribution:
In formula, r is sliding bearing radius,For angular coordinate, ρ is lubrication oil density, and h is oil film thickness, and μ is dynamic for lubricating oil
Power viscosity, p are oil film pressure, and z is axial coordinate, and Ω is rotor speed, VhFor horizontal shift speed, VvFor vertical movement speed.
For cylinder-shaped bearing:C is radius clearance, and ε is eccentricity,For the attitude angle.
Under permanent operating condition, conventional bush(ing) bearing pressure distribution schematic diagram is as shown in Figure 1.As shown in Figure 1, oil film is most
Big pressure is in axle journal direction of rotation downstream, near minimum oil film thickness position.Oil film pressure is bigger, and interior rubbing action is got over
By force, dynamic pressure effect increases confined area lubricating oil temperature, oil film maximum temperature region near minimum oil film thickness position.
There are calculus of finite differences and finite volume method etc. to the method for Reynolds equation solution, but no matter which kind of solving method used,
Pressure distribution relation formula is all identical:According to pressure distribution relation formula it is found that a determining model
Sliding bearing pressure distribution p, only it is related to rotor speed Ω, lubricating oil viscosity μ and eccentricity epsilon.And for rotating machinery
For, sliding bearing is usually run under permanent load and constant rotational speed, and pressure is distributed mainly by lubricating oil dynamic viscosity μ shadow
It rings.
Viscosity is fluid-resistance deformation or the property for preventing adjacent fluid layers generation relative motion.Lubricating oil temperature is higher,
Molecule is more active, and intermolecular interaction is lower, and lubricating oil viscosity is lower.It can by the temperature data and viscosity data of fitting experiment
To obtain the functional relation of temperature and viscosity, the common viscous relational expression of temperature has Reynolds formula, Vogel formula, Maccoull-
Wright formula etc..It is that Reynolds glues kelvin relation formula below:
In formula, μ is dynamic viscosity, μ0For reference temperature T0Under dynamic viscosity, β is the viscous coefficient of temperature.
Currently, researcher, which is concentrated mainly on the analysis of sliding bearing bearer properties, influences sliding bearing bearer properties
Factor, and improve the ways and means of sliding bearing bearer properties, not yet there is research achievement and sliding bearing characteristic is carried out
Control.There is bad operating status in sliding bearing, will not generally take measures, and only when sliding bearing breaks down,
Replacement bearing type can be just taken, increases coal width, reduce bearing draw ratio, changing the methods of bearing bottom clearance sideshake to adjust
The bearer properties of sliding bearing.So needing a kind of method of adjusting sliding bearing bearer properties to improve sliding bearing operation
State.
Summary of the invention
The object of the present invention is to provide the control devices and control method of a kind of sliding bearing bearer properties, can be as sliding
The control method of bearing fault emergency processing.The present invention controls sliding bearing local sensitivity regional temperature, makes full use of
Sliding bearing temperature distributing characteristic energy saving and can reduce heat transfer medium thermal inertia bring and influence.
Above-mentioned purpose is achieved through the following technical solutions:
A kind of control device of sliding bearing bearer properties leads to including being arranged in the heat transfer medium inside plain bearing bush
Road and the displacement sensor being arranged on sliding bearing axle journal are provided with temperature sensor at the heat transfer medium channels, institute
The heat transfer medium channels stated connect heat transfer medium feedway, the heat transfer medium delivery pipe by heat transfer medium conveyance conduit
Be provided with flow valve and temperature control device on road, the temperature sensor, displacement sensor, flow valve, temperature control device all with control
Device connection.
The control device of the sliding bearing bearer properties, the heat transfer medium channels are arranged in sliding bearing most
The sensitizing range of sliding bearing bearer properties near small film thickness position.
The control device of the sliding bearing bearer properties, the heat transfer medium channels are provided with several, along week
To the axially extending bore being arranged to inside bearing shell, radially close to inner surface of bearing bush.
The control device of the sliding bearing bearer properties, there are two the displacement sensor settings, is respectively arranged
In the upright position and horizontal position of plain bearing bush inner surface, the vertical displacement of real-time measurement journal centre and horizontal position
It sets, and the displacement parameter of acquisition is sent to controller.
The method for carrying out sliding bearing bearer properties control with the control device of above-mentioned sliding bearing bearer properties, this method
Include:
The internal surface temperature of temperature sensor real-time measurement plain bearing bush, and the temperature data of acquisition is sent to control
Device 7 processed；
The horizontal displacement and vertical displacement of displacement sensor real-time measurement journal centre, and the displacement parameter of acquisition is sent
To controller；
Controller judges the displacement data that displacement sensor is sent, if journal centre sinks, the bias of sliding bearing
Rate increases, and oil film bearings thickness becomes smaller, and controller controls temperature control device and generates cryogenic media, and flow valve works to be situated between toward heat transfer
Matter is passed through cryogenic media in channel, reduces the lubricating oil temperature of regional area, increases film viscosity, to make regional area
Oil film pressure increases；If journal centre floats, the eccentricity of bearing sliding bearing becomes smaller, and oil film bearings thickness becomes
Greatly, controller control temperature control device generates high-temperature medium, and flow valve, which works, is passed through high-temperature medium into heat transfer medium channels, makes office
The lubricating oil temperature in portion region increases, and film viscosity is reduced, so that the oil film pressure of regional area be made to decline；
When the temperature data that controller receives temperature sensor conveying is more than alarming value, by manually controlling temperature control device
Cryogenic media is added with flow valve, increases lubricating oil viscosity, improves oil film pressure rapidly, raise axle journal；If sliding bearing goes out
The excessive situation of existing oil film thickness, then manually control temperature control device and high-temperature medium is added in flow valve, reduces rapidly oil film pressure,
Make bearing neck dipping inclination.
The utility model has the advantages that
Compared with prior art, technical solution advantage provided by the present invention:
1. the present invention can control the sliding axle to have put into operation in the case where not having to change sliding bearing structure parameter
Hold bearer properties.
2. the present invention can accurately control sliding bearing local sensitivity regional temperature, sliding axle is taken full advantage of
Temperature distributing characteristic is held, effectively energy saving and reduction heat transfer medium thermal inertia bring influence.
3. the method for the present invention can not only control sliding bearing bearer properties in real time, so that sliding bearing work is designing
Equipoise, can also carry out in time processing sliding bearing occur failure.
Detailed description of the invention
Fig. 1 is the basic schematic diagram of sliding bearing hydrodynamic lubrication；
Fig. 2 is a kind of control method schematic diagram of sliding bearing bearer properties of the invention；
Description of symbols: 1 is wedge-shaped lubrication gap；2 be axle journal.
3 be plain bearing bush, and 4 be heat transfer medium channels, and 5 be temperature sensor, and 6 be displacement sensor, and 7 be control
Device, 8 be flow valve, and 9 be temperature control device.
Specific embodiment
As shown in Fig. 2, heat transfer medium channels 4 are arranged in 3 interior surface of plain bearing bush, it is attached in minimum thickness position
Close sliding bearing bearer properties sensitizing range, circumferentially at the axially extending bore inside bearing shell, radially in bearing shell
Surface.Temperature sensor 5 is arranged in heat transfer medium channels 4, the inner surface of 5 real-time measurement plain bearing bush 3 of temperature sensor
Temperature, and the temperature data of acquisition is sent to controller 7.In addition it is arranged in plain bearing bush using displacement sensor 6
The upright position and horizontal position on surface, the horizontal displacement and vertical displacement of real-time measurement journal centre, and by the displacement of acquisition
Parameter is sent to controller 7.Controller 7 temperature data and displacement data control flow valve 8 and temperature control device 9 based on the received
Working condition.Temperature control device 9 is connected with flow valve 8, the temperature of 9 Heat Transfer Control medium of temperature control device.Flow valve 8 and heat transfer are situated between
Matter channel 4 is connected, and controls the flow of 8 heat transfer medium of flow valve.Flow valve 8 and 9 Heat Transfer Control medium of temperature control device are to sliding
Bearing bush diabatic process.
When realizing real-time self adjustable sliding bearing bearer properties function, position that controller 7 is conveyed according to displacement sensor 6
Data are moved to be controlled.If journal centre sinks, the eccentricity of sliding bearing increases, and oil film bearings thickness becomes smaller,
Controller 7 controls temperature control device 9 and generates cryogenic media, and flow valve 8 works and is passed through cryogenic media into heat transfer medium channels 4, makes
The lubricating oil temperature of regional area reduces, and increases film viscosity, so that the oil film pressure of regional area be made to increase；If in axle journal
When floating in the heart, the eccentricity of bearing sliding bearing becomes smaller, and oil film bearings thickness becomes larger, and controller 7 controls temperature control device 9 and produces
Raw high-temperature medium, flow valve 8 work and are passed through high-temperature medium into heat transfer medium channels 4, make the lubricating oil temperature liter of regional area
Height reduces film viscosity, so that the oil film pressure of regional area be made to decline.
When controller 7 receive temperature sensor 5 convey temperature data be more than alarming value when or other harsh conditions, control
Method processed is used for failure emergency function.At this point it is possible to be carried out to control method artificial according to the fault signature of sliding bearing
Operation.The situation of minimum oil film thickness deficiency if sliding bearing occurs rubbing etc., can be by manually controlling 9 He of temperature control device
Cryogenic media is added in flow valve 8, increases lubricating oil viscosity, improves oil film pressure rapidly, raise axle journal；If sliding bearing occurs
The excessive situation of the oil film thicknesses such as oil whip, then manually control temperature control device 9 and high-temperature medium is added in flow valve 8, drops rapidly
Low oil film pressure, makes bearing neck dipping inclination.
Concrete principle is as follows:
By sliding bearing dynamic pressure principle it is found that confined area minimum thickness position is nearby there are maximum pressure and maximum temperature,
For sliding bearing bearer properties sensitizing range.The heat transfer medium channels are arranged in the bearing shell of the sensitizing range by the present invention
Portion, circumferentially at the axially extending bore inside bearing shell, radially close to inner surface of bearing bush, can avoid damage to bearing arrangement and
Oil film pressure field continuity.Further, by thermal conduction study Unsteady Heat Transfer principle it is found that the temperature of plain bearing bush regional area
Spend changing value Δ T:
Wherein, T0For channel rated temperature, TfFor heat-transfer medium temperature, hfFor heat transfer medium convection transfer rate, d is to pass
Passage of heat diameter, ρ are bush material density, and C is bush material specific heat capacity, D1For Pad radius, D2For bearing shell outer diameter, Δ θiFor
Layout angle interval, teFor the currency.
The heat transfer that flow valve and temperature control device pass through the flow and temperature-controlled heat medium channel of adjusting heat transfer medium
Journey, and then adjust sliding bearing bearer properties.By formula (1) it is found that being T when heat transfer medium channels are passed through temperaturefHeat transfer medium
When, plain bearing bush temperatures at localized regions change Delta T leads to the regional area lubricant medium temperature approximation change Delta T, by
Reynolds glues kelvin relation formula it is found that the viscosity of lubricant medium will change.According to hydrodynamic lubrication principle and the side Reynolds
It is found that viscosity change will be so that oil film pressure changes, sliding bearing bearer properties change journey.
Above-described embodiment is only the preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill of the art
For personnel, without departing from the principle of the present invention, several improvement and equivalent replacement can also be made, these are to the present invention
Claim improve with the technical solution after equivalent replacement, each fall within protection scope of the present invention.
Claims (5)
1. a kind of control device of sliding bearing bearer properties, which is characterized in that including being arranged in inside plain bearing bush
Heat transfer medium channels and the displacement sensor being arranged on sliding bearing axle journal are provided with temperature at the heat transfer medium channels
Sensor, the heat transfer medium channels connect heat transfer medium feedway, the heat transfer by heat transfer medium conveyance conduit
Flow valve and temperature control device, the temperature sensor, displacement sensor, flow valve, temperature control dress are provided on medium delivery pipe road
It sets and is all connect with controller.
2. the control device of sliding bearing bearer properties according to claim 1, which is characterized in that the heat transfer medium
Channel is arranged in the sensitizing range of the sliding bearing bearer properties near the minimum thickness position of sliding bearing.
3. the control device of sliding bearing bearer properties according to claim 1, which is characterized in that the heat transfer medium
Channel is provided with several, circumferentially at the axially extending bore inside bearing shell, radially close to inner surface of bearing bush.
4. the control device of sliding bearing bearer properties according to claim 1, which is characterized in that the displacement sensing
There are two device settings, is arranged in the upright position and horizontal position of plain bearing bush inner surface, in real-time measurement axle journal
The vertical displacement and horizontal displacement of the heart, and the displacement parameter of acquisition is sent to controller.
5. a kind of method that the control device with above-mentioned sliding bearing bearer properties carries out sliding bearing bearer properties control, special
Sign is, this method comprises:
The internal surface temperature of temperature sensor real-time measurement plain bearing bush, and the temperature data of acquisition is sent to control
Device；
The horizontal displacement and vertical displacement of displacement sensor real-time measurement journal centre, and the displacement parameter of acquisition is sent to control
Device processed；
Controller judges the displacement data that displacement sensor is sent, if journal centre sinks, the eccentricity of sliding bearing increases
Greatly, oil film bearings thickness becomes smaller, and controller controls temperature control device and generates cryogenic media, and flow valve works logical toward heat transfer medium
It is passed through cryogenic media in road, reduces the lubricating oil temperature of regional area, increases film viscosity, to make the oil film of regional area
Pressure increase；If journal centre floats, the eccentricity of bearing sliding bearing becomes smaller, and oil film bearings thickness becomes larger, control
Device control temperature control device processed generates high-temperature medium, and flow valve, which works, is passed through high-temperature medium into heat transfer medium channels, makes partial zones
The lubricating oil temperature in domain increases, and film viscosity is reduced, so that the oil film pressure of regional area be made to decline；
When the temperature data that controller receives temperature sensor conveying is more than alarming value, by manually controlling temperature control device and stream
It measures valve and cryogenic media is added, increase lubricating oil viscosity, improve oil film pressure rapidly, raise axle journal；If there is oil in sliding bearing
The excessive situation of film thickness, then manually control temperature control device and high-temperature medium is added in flow valve, reduces rapidly oil film pressure, makes axis
Neck sinks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910158342.9A CN109973518B (en) | 2019-03-01 | 2019-03-01 | Control device and control method for bearing characteristics of sliding bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910158342.9A CN109973518B (en) | 2019-03-01 | 2019-03-01 | Control device and control method for bearing characteristics of sliding bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109973518A true CN109973518A (en) | 2019-07-05 |
| CN109973518B CN109973518B (en) | 2020-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910158342.9A Expired - Fee Related CN109973518B (en) | 2019-03-01 | 2019-03-01 | Control device and control method for bearing characteristics of sliding bearing |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6376907A (en) * | 1986-09-18 | 1988-04-07 | Mitsubishi Heavy Ind Ltd | Unilateral contact adjusting device for journal bearing |
| US5277543A (en) * | 1991-08-08 | 1994-01-11 | Doryokuro Kakunenryo Kathatsu Jigyodan | Device for monitoring abrasion loss of a thrust bearing in a submerged motor pump |
| JPH11294364A (en) * | 1998-04-09 | 1999-10-26 | Hitachi Ltd | Control method of bearing oil film thickness |
| JP2004052567A (en) * | 2002-07-16 | 2004-02-19 | Mitsubishi Heavy Ind Ltd | Turbine and temperature control system for the same |
| US6766697B1 (en) * | 2000-12-06 | 2004-07-27 | Bearings Plus, Inc. | Hydrodynamic bearings having strain sensors |
| JP5159702B2 (en) * | 2009-05-20 | 2013-03-13 | 株式会社東芝 | Steam turbine |
| JP2016089753A (en) * | 2014-11-06 | 2016-05-23 | 三菱日立パワーシステムズ株式会社 | Shaft center position control device, rotary machine system, shaft center position control method and program |
| KR101690420B1 (en) * | 2015-07-17 | 2016-12-27 | 한국기계연구원 | Mixed bearing device and driving method thereof |
| CN108426714A (en) * | 2018-03-15 | 2018-08-21 | 国家电网公司 | A kind of monitoring method of the monitoring system of tilting-type sliding bearing working condition |
| CN109322924A (en) * | 2018-08-10 | 2019-02-12 | 南京航空航天大学 | The intelligent sliding bearing and its control method of auto-control oil film thickness |
-
2019
- 2019-03-01 CN CN201910158342.9A patent/CN109973518B/en not_active Expired - Fee Related
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6376907A (en) * | 1986-09-18 | 1988-04-07 | Mitsubishi Heavy Ind Ltd | Unilateral contact adjusting device for journal bearing |
| US5277543A (en) * | 1991-08-08 | 1994-01-11 | Doryokuro Kakunenryo Kathatsu Jigyodan | Device for monitoring abrasion loss of a thrust bearing in a submerged motor pump |
| JPH11294364A (en) * | 1998-04-09 | 1999-10-26 | Hitachi Ltd | Control method of bearing oil film thickness |
| US6766697B1 (en) * | 2000-12-06 | 2004-07-27 | Bearings Plus, Inc. | Hydrodynamic bearings having strain sensors |
| JP2004052567A (en) * | 2002-07-16 | 2004-02-19 | Mitsubishi Heavy Ind Ltd | Turbine and temperature control system for the same |
| JP5159702B2 (en) * | 2009-05-20 | 2013-03-13 | 株式会社東芝 | Steam turbine |
| JP2016089753A (en) * | 2014-11-06 | 2016-05-23 | 三菱日立パワーシステムズ株式会社 | Shaft center position control device, rotary machine system, shaft center position control method and program |
| KR101690420B1 (en) * | 2015-07-17 | 2016-12-27 | 한국기계연구원 | Mixed bearing device and driving method thereof |
| CN108426714A (en) * | 2018-03-15 | 2018-08-21 | 国家电网公司 | A kind of monitoring method of the monitoring system of tilting-type sliding bearing working condition |
| CN109322924A (en) * | 2018-08-10 | 2019-02-12 | 南京航空航天大学 | The intelligent sliding bearing and its control method of auto-control oil film thickness |
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| CN109973518B (en) | 2020-09-08 |
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