CN105258835B - A kind of method and device measured for sliding bearing liquid film friction torque - Google Patents
A kind of method and device measured for sliding bearing liquid film friction torque Download PDFInfo
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- CN105258835B CN105258835B CN201510843208.4A CN201510843208A CN105258835B CN 105258835 B CN105258835 B CN 105258835B CN 201510843208 A CN201510843208 A CN 201510843208A CN 105258835 B CN105258835 B CN 105258835B
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- 239000007788 liquid Substances 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000005259 measurement Methods 0.000 claims description 8
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- 238000012360 testing method Methods 0.000 abstract description 8
- 238000005194 fractionation Methods 0.000 abstract description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
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- 238000005299 abrasion Methods 0.000 description 1
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- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification 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
- 230000035945 sensitivity Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The present invention provides a kind of method and device measured for sliding bearing liquid film friction torque, is driven by variable-frequency motor by flexible clutch and generates rotation by the shaft that sliding bearing supports；The liquid film of the sound interannular of sliding bearing generates the friction torque for hindering rotation, and the friction torque drives the trend of bearing holder (housing, cover) generation relative rotation by the stationary ring of sliding bearing；Threaded rod is equipped in the threaded hole of bearing holder (housing, cover) lower end, the active force for preventing bearing holder (housing, cover) that relative rotation occurs is applied in threaded rod end, passes through the size of the force sensor measuring active force；Torque that Dynamic Data Acquiring, analyzer are generated according to the active force calculates the friction torque of sliding bearing liquid film.The present invention can measure the friction torque of different load, different rotating speeds properties of journal bearing lubricated liquid film.Test device need not will test set rotating shaft system fractionation and can assemble, and occupy little space, also the synchro measure for other dynamic parameters of sliding bearing has reserved interface.
Description
Technical field
The present invention provides a kind of method and devices measured for sliding bearing liquid film friction torque.
Background technology
Sliding bearing is the important supporting arrangement of large rotating machinery rotor part.The friction torque table of sliding bearing liquid film
The lubricating status between the dynamic and static mating surface of bearing is levied.Such as the friction torque is excessive, and the wearing layer of sliding bearing can be caused seriously
Abrasion, can not only reduce the sensitivity of bearing, generate unnecessary nonfunctional loss, and can directly influence the service life of bearing
With the stability of a whole set of rotor part operation.Therefore, in the experimental study to sliding bearing kinetic characteristics, liquid film can be produced
Raw friction torque is as one of parameter mainly investigated.
In the experimental study of current sliding bearing kinetic characteristics, for miniature, middle-size and small-size bearing usually using special
Bearing friction torque measuring instrument carry out.The use scope of these measuring instruments is limited not to be suitable for large rotating machinery bearing,
And due to needing to synchronize other dynamic parameters monitoring in the experiment of the kinetic characteristics of sliding bearing, such instrument is bright
It is aobvious to meet the requirement.In the kinetic characteristics test platform of large-scale bearing, usually using dynamic torque sensor
The torque of rotor part is monitored.This torque sensor includes shaft type, flange form and tightens formula etc., usually insertion type
Connection needs the part as transmission shaft that could use, the shaft coupling being typically mounted between driving motor and shaft
Position.This connection mode has the accuracy of alignment of installation higher requirement, need to reserve dedicated sky in the design of testing stand
Between, so as to limit its use scope.
Invention content
The purpose of the present invention is to provide it is a kind of for sliding bearing liquid film friction torque measure method and device, effectively
The deficiency of existing measuring instrument and method is made up, the friction torque of different load, different rotating speeds properties of journal bearing lubricated liquid film is carried out
It measures.
The technical solution of the present invention is to provide a kind of device measured for sliding bearing liquid film friction torque,
In：
Variable-frequency motor is driven by flexible clutch and generates rotation by the shaft that sliding bearing supports；
The liquid film of the sound interannular of sliding bearing generates the friction torque for hindering rotation, and the friction torque passes through sliding axle
The stationary ring held drives the trend of bearing holder (housing, cover) generation relative rotation；
Threaded rod is equipped in the threaded hole of bearing holder (housing, cover) lower end, is applied in threaded rod end and prevents bearing holder (housing, cover) that phase occurs
To the active force of rotation, pass through the size of the force sensor measuring active force；
The torque that Dynamic Data Acquiring, analyzer are generated according to the active force is turned round to calculate the friction of sliding bearing liquid film
Square, obtaining friction torque is：Active force and threaded rod end measured by force snesor are to the product of distance between bearing centre.
Preferably, loading system is connect with the pulley above bearing holder (housing, cover)；
The both ends of the cable wire on pulley are wound on, the globular hinge of two connection boom ends are correspondingly connected to, to measuring device
Pulling force is provided；The connecting rod is located at the relative position at left and right sides of bearing holder (housing, cover) respectively；
The loading system provides radial load by pulley, cable wire and connecting rod for sliding bearing.
Preferably, by setting speed probe, the rotating speed of countershaft is monitored；
By the Dynamic Data Acquiring, analyzer liquid film friction torque and shaft rotary speed data are carried out record in real time and
Analysis.
Preferably, on the bearing holder (housing, cover), distribution is provided with multiple for the measurement of sliding bearing kinetic parameter and load
The channel and interface of loading.
Preferably, it at the shaft of sliding bearing axially back and forth, is respectively arranged with driving side thrust bearing and non-drive side pushes away
Power bearing, for providing radial and axial support for a whole set of rotor-bearing system.
Another technical solution of the present invention is to provide a kind of method measured for sliding bearing liquid film friction torque,
In：
Variable-frequency motor is driven by flexible clutch and generates rotation by the shaft that sliding bearing supports；
The liquid film of the sound interannular of sliding bearing generates the friction torque for hindering rotation, and the friction torque passes through sliding axle
The stationary ring held drives the trend of bearing holder (housing, cover) generation relative rotation；
Threaded rod is equipped in the threaded hole of bearing holder (housing, cover) lower end, is applied in threaded rod end and prevents bearing holder (housing, cover) that phase occurs
To the active force of rotation, pass through the size of the force sensor measuring active force；
The torque that Dynamic Data Acquiring, analyzer are generated according to the active force is turned round to calculate the friction of sliding bearing liquid film
Square, obtaining friction torque is：Active force and threaded rod end measured by force snesor are to the product of distance between bearing centre；
It is monitored by the rotating speed of speed probe countershaft；It is rubbed by the Dynamic Data Acquiring, analyzer to liquid film
It wipes torque and shaft rotary speed data record and analyze in real time；
The rotating speed of shaft is adjusted by variable-frequency motor, realizes the survey to different rotating speeds properties of journal bearing lubricated liquid film friction torque
Amount.
Preferably, loading system is connect with the pulley above bearing holder (housing, cover)；
The both ends of the cable wire on pulley are wound on, the globular hinge of two connection boom ends are correspondingly connected to, to measuring device
Pulling force is provided；The connecting rod is located at the relative position at left and right sides of bearing holder (housing, cover) respectively；
The loading system provides radial load by pulley, cable wire and connecting rod for sliding bearing, makes sliding bearing liquid
The friction torque of film is carried completely by threaded rod；
By the adjusting of loading system, the measurement of different radial load properties of journal bearing lubricated liquid film friction torques is realized.
Sliding bearing liquid film measurement of friction torque device of the present invention, effectively compensates for existing measuring instrument and method
Deficiency, the friction torque of different load, different rotating speeds properties of journal bearing lubricated liquid film can be measured.The test device is without inciting somebody to action
Experiment set rotating shaft system fractionation can assemble, and occupy little space.Installation method simply, conveniently, is required without excessively high technology.This
Synchro measure of the kind measuring device also for other dynamic parameters of sliding bearing has reserved interface, and technical staff can be according to need
It is loaded and is tested.
Description of the drawings
Fig. 1 is the structure diagram of the device of the present invention measured for sliding bearing liquid film friction torque；
Fig. 2 be in Fig. 1 A-A to schematic cross-section.
Specific embodiment
The present invention provides the method and devices measured for sliding bearing liquid film friction torque.The measuring device is mainly wrapped
It includes：Drive system, flexible clutch, measured bearing and bearing holder (housing, cover), cable wire, pulley, load charger, rotating speed, torque measurement
Device, data acquisition, analysis system and other auxiliary devices.
As shown in Figure 1 and Figure 2, main operational principle of the invention is as described below：
Variable-frequency motor 1 generates rotation by the shaft 3 that flexible clutch 2 drives sliding bearing 17 to support.At this point, sliding axle
The friction torque for hindering rotation can be generated, and the torque can be driven by the stationary ring of sliding bearing 17 by holding the liquid film of 17 sound interannulars
Bearing holder (housing, cover) 5 generates the trend of rotation.Threaded rod 11 is assembled in the threaded hole of 5 lower end of bearing holder (housing, cover), by 11 end of threaded rod
End applies active force, can prevent bearing holder (housing, cover) 5 that relative rotation occurs.The torque generated according to the principle of equalising torque, the active force
It is equal with the friction torque of sliding bearing liquid film.It can accurately measure out the size of the active force using force snesor 12, be then tested
The friction torque of sliding bearing liquid film is：Active force and 11 end of threaded rod to bearing centre spacing measured by force snesor 12
From product.The parameters such as the friction torque of sliding bearing liquid film and rotating speed can be carried out using Dynamic Data Acquiring, analyzer 16
Record and analysis in real time.
The test device can be realized by variable-frequency motor 1, the adjusting of loading system 6 under different rotating speeds, different radial loads
The measurement of sliding bearing liquid film friction torque.
Wherein, variable-frequency motor 1 is used to adjust the rotating speed of shaft 3, realizes to rub to different rotating speeds properties of journal bearing lubricated liquid film and turn round
The measurement of square；Motor can be ensured from radial and axial load using flexible clutch 2；Driving side thrust bearing 4 and non-drive
Dynamic side-thrust bearing 10（It is located at the shaft 3 of sliding bearing 17 axially back and forth respectively）, for being carried for a whole set of rotor-bearing system
For radial and axial support；Loading system 6 provides radial load by pulley 7, cable wire 8 and connecting rod 9 for journal bearing 17,
So as to fulfill the measurement of different loads lower bearing oil drag torque；The end of connecting rod 9 is globular hinge, and cable wire 8 is only capable of
Pulling force is provided bearing measuring system, and such design cooperation pulley 7 can make loading system 6 only have radial direction to measured bearing to bear
Lotus, the effect for not having torque generate so that the friction torque of 17 liquid film of sliding bearing is carried completely by threaded rod 11, so as to protect
The accuracy of friction torque measured value is demonstrate,proved.Bearing 13 is used to provide fixed support for force snesor 12；Pedestal 14 is used to protect
The stability of a whole set of test system of card；Speed probe 15 is monitored for the rotating speed of countershaft 3, to realize to sliding bearing
The investigation of relationship between liquid film friction torque and rotating speed；Dynamic Data Acquiring, analyzer 16 are used for liquid film friction torque and shaft
The real-time record of rotary speed data and analysis.This measuring device is also reserved with multiple other kinetic parameters for sliding bearing and measures
With the channel and interface 18 of load loading, extended in order to the follow-up test of the device.
Although present disclosure is discussed in detail by above preferred embodiment, but it should be appreciated that above-mentioned
Description is not considered as limitation of the present invention.After those skilled in the art have read the above, for the present invention's
A variety of modifications and substitutions all will be apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (5)
1. a kind of device measured for sliding bearing liquid film friction torque, which is characterized in that
Variable-frequency motor（1）Pass through flexible clutch（2）Driving is by sliding bearing（17）The shaft of support（3）Generate rotation；
Sliding bearing（17）The liquid film of sound interannular generate the friction torque for hindering rotation, and the friction torque passes through sliding axle
It holds（17）Stationary ring drive bearing holder (housing, cover)（5）Generate the trend of relative rotation；
In bearing holder (housing, cover)（5）Threaded rod is equipped in the threaded hole of lower end（11）, in threaded rod（11）End is applied with prevention bearing
Set（5）The active force of relative rotation occurs, passes through force snesor（12）Measure the size of the active force；
Dynamic Data Acquiring, analyzer（16）Sliding bearing is calculated according to the torque of active force generation（17）The friction of liquid film
Torque, obtaining friction torque is：Force snesor（12）Measured active force and threaded rod（11）End is between bearing centre
The product of distance；
Loading system（6）With positioned at bearing holder (housing, cover)（5）The pulley of top（7）Connection；
It is wound on pulley（7）On cable wire（8）Both ends, be correspondingly connected to two connecting rods（9）The globular hinge of end, to measuring
Device provides pulling force；The connecting rod（9）It is located at bearing holder (housing, cover) respectively（5）The relative position of the left and right sides；
The loading system（6）Pass through pulley（7）, cable wire（8）And connecting rod（9）For sliding bearing（17）Radial load is provided.
2. the device measured as described in claim 1 for sliding bearing liquid film friction torque, which is characterized in that
By setting speed probe（15）, countershaft（3）Rotating speed be monitored；
Pass through the Dynamic Data Acquiring, analyzer（16）Liquid film friction torque and shaft rotary speed data are carried out record in real time and
Analysis.
3. the device measured as described in claim 1 for sliding bearing liquid film friction torque, which is characterized in that
In the bearing holder (housing, cover)（5）On, distribution be provided with it is multiple measured for sliding bearing kinetic parameter and load loading it is logical
Road and interface（18）.
4. the device measured as described in claim 1 for sliding bearing liquid film friction torque, which is characterized in that
Sliding bearing（17）Shaft axially back and forth（3）Place, is respectively arranged with driving side thrust bearing（4）With non-drive side thrust
Bearing（10）, for providing radial and axial support for a whole set of rotor-bearing system.
A kind of 5. method measured for sliding bearing liquid film friction torque, which is characterized in that
Variable-frequency motor（1）Pass through flexible clutch（2）Driving is by sliding bearing（17）The shaft of support（3）Generate rotation；
Sliding bearing（17）The liquid film of sound interannular generate the friction torque for hindering rotation, and the friction torque passes through sliding axle
It holds（17）Stationary ring drive bearing holder (housing, cover)（5）Generate the trend of relative rotation；
In bearing holder (housing, cover)（5）Threaded rod is equipped in the threaded hole of lower end（11）, in threaded rod（11）End is applied with prevention bearing
Set（5）The active force of relative rotation occurs, passes through force snesor（12）Measure the size of the active force；
Dynamic Data Acquiring, analyzer（16）Sliding bearing is calculated according to the torque of active force generation（17）The friction of liquid film
Torque, obtaining friction torque is：Force snesor（12）Measured active force and threaded rod（11）End is between bearing centre
The product of distance；
Pass through speed probe（15）Countershaft（3）Rotating speed be monitored；By the Dynamic Data Acquiring, analyzer（16）It is right
Liquid film friction torque and shaft rotary speed data record and analyze in real time；
Pass through variable-frequency motor（1）Adjust shaft（3）Rotating speed, realize the survey to different rotating speeds properties of journal bearing lubricated liquid film friction torque
Amount；
By loading system（6）With positioned at bearing holder (housing, cover)（5）The pulley of top（7）Connection；
It is wound on pulley（7）On cable wire（8）Both ends, be correspondingly connected to two connecting rods（9）The globular hinge of end, to measuring
Device provides pulling force；The connecting rod（9）It is located at bearing holder (housing, cover) respectively（5）The relative position of the left and right sides；
The loading system（6）Pass through pulley（7）, cable wire（8）And connecting rod（9）For sliding bearing（17）Radial load is provided,
Make sliding bearing（17）The friction torque of liquid film is completely by threaded rod（11）Carrying；
Pass through loading system（6）Adjusting, realize the measurement of different radial load properties of journal bearing lubricated liquid film friction torques.
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| CN201510843208.4A CN105258835B (en) | 2015-11-27 | 2015-11-27 | A kind of method and device measured for sliding bearing liquid film friction torque |
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| CN201510843208.4A CN105258835B (en) | 2015-11-27 | 2015-11-27 | A kind of method and device measured for sliding bearing liquid film friction torque |
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| CN105258835A CN105258835A (en) | 2016-01-20 |
| CN105258835B true CN105258835B (en) | 2018-07-06 |
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| CN106969867B (en) * | 2017-05-12 | 2019-09-13 | 中国航天时代电子公司 | A device and method for measuring maximum rolling static friction moment of rotor cabin |
| CN115356025A (en) * | 2022-07-06 | 2022-11-18 | 宁波威孚天力增压技术股份有限公司 | System and method for testing friction power consumption of turbocharger |
| CN116659858A (en) * | 2023-05-26 | 2023-08-29 | 湖南大学 | Wind-powered electricity generation slide bearing contracts proportion operating mode analogue test platform |
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|---|---|---|---|---|
| CN1865878A (en) * | 2006-06-22 | 2006-11-22 | 慈兴集团有限公司 | Measuring for friction torque of bearing under micro-loading at different rotation rate and measuring apparatus therefor |
| CN102519639A (en) * | 2011-12-14 | 2012-06-27 | 河南科技大学 | Friction torque measurement apparatus of horizontal bearing |
| CN103439041A (en) * | 2013-09-03 | 2013-12-11 | 济钢集团有限公司 | Motor friction-torque automatic measurement device used for steel-belt production |
| CN105021338A (en) * | 2015-08-12 | 2015-11-04 | 天津大学 | Torque measurement apparatus and method for miniature tension-torsion fatigue testing machine |
| CN205175594U (en) * | 2015-11-27 | 2016-04-20 | 上海电气凯士比核电泵阀有限公司 | Be used for slide bearing liquid film friction torque measuring device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005069884A (en) * | 2003-08-25 | 2005-03-17 | Nsk Ltd | Dynamic torque measuring device for rolling bearings |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1865878A (en) * | 2006-06-22 | 2006-11-22 | 慈兴集团有限公司 | Measuring for friction torque of bearing under micro-loading at different rotation rate and measuring apparatus therefor |
| CN102519639A (en) * | 2011-12-14 | 2012-06-27 | 河南科技大学 | Friction torque measurement apparatus of horizontal bearing |
| CN103439041A (en) * | 2013-09-03 | 2013-12-11 | 济钢集团有限公司 | Motor friction-torque automatic measurement device used for steel-belt production |
| CN105021338A (en) * | 2015-08-12 | 2015-11-04 | 天津大学 | Torque measurement apparatus and method for miniature tension-torsion fatigue testing machine |
| CN205175594U (en) * | 2015-11-27 | 2016-04-20 | 上海电气凯士比核电泵阀有限公司 | Be used for slide bearing liquid film friction torque measuring device |
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