CN1273334A - Method for improving running condition of axle in slide bearing - Google Patents
Method for improving running condition of axle in slide bearing Download PDFInfo
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- CN1273334A CN1273334A CN 00113441 CN00113441A CN1273334A CN 1273334 A CN1273334 A CN 1273334A CN 00113441 CN00113441 CN 00113441 CN 00113441 A CN00113441 A CN 00113441A CN 1273334 A CN1273334 A CN 1273334A
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- oil
- axle
- bearing
- bearing shell
- shaft
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Abstract
A method for improving the running condition of shaft in slide bearing features that under the monitor of failure analyzer, the position of shaft in bush in running procedure to control or regulate the oil quantity, pressure and ratio of different oil inlets of bush in order to make the shaft in optimal position condition, and the parallelism of central axis of shaft with the central axis of bush is monitored to regulate the position of shaft in bush for higher parallelism. Its advantages include controlling the vibration of shaft and elongating servie life of bearing.
Description
The present invention relates to a kind ofly improve the sliding bearing serviceability, improve the method for the axle operation conditions in bearing shell run up with the control oil feeding method, this method is mainly used in the operation of plant equipment of the oval sliding bearing of high speed, observes and adjusts the location status of axle in bearing shell.
At present, the performance of sliding bearing is generally decided by the structure of bearing, but thisly in actual moving process decides the bearing of performance some performances to occur when not enough by structure, generally can regulate control by the method for regulating the oil temperature; Yet, regulate the control method of oil temperature and can only in very among a small circle, the performance to sliding bearing regulate.And improve performance by the bearing of selecting different structure for use, often when having certain superior function, some performance in addition but is difficult to satisfy usage requirement.
The object of the present invention is to provide a kind of method of improving axle operation conditions in sliding bearing, this method is that a kind of fuel feeding control method that improves the sliding bearing performance in running is provided on existing basis.Defective when the serviceability of sliding bearing in running is when the position in bearing shell is caused by oil film and axle, can solve by fuel feeding control method.This method is mainly used in using on the plant equipment (such as large-scale air compressor machine) of the oval sliding bearing of high speed, also can be used on the plant equipment of other high speeds or low speed sliding bearing, in order to observe and the position of adjustment axle in bearing shell, guarantee the normal operation of equipment.
Embodiment of the present invention are to reach the position of control axle journal in bearing by oil inlet quantity, oil pressure and the ratio thereof of controlling the different filler openings of sliding bearing, make axle in bearing, can both under desired operating conditions, keep possible optimum working condition at any time, make it have optimum load performance and stability.To the fuel feeding control of the two bearings on a certain axle, can adjust shaft centre line, make shaft centre line and bearing axis keeping parallelism, thereby guarantee the shaft vibration minimum.
Enforcement improves the essential condition of axle method of operation conditions in sliding bearing: 1. definite the and adjustment of position in bearing must be observed by means of the equipment fault analysis scope to the high-speed cruising axis; To the intersect observation of situation of shaft centre line in service and bearing axis, must confirm by the equipment fault analysis scope that shaft centre line position display function is arranged, blindly regulate control oil, very likely damage plant equipment; 2. install or reequip the device that to control different oil-in oil masses and oil pressure additional.Because the oil supply system of existing elliptic bearing does not have the controller for supplying oil of different oil-ins because of the oil mass of unmatchful different oil-ins, the demand that oil pressure is controlled respectively.For realizing the oily purpose of control, need oil feeding line is transformed, realize control fuel feeding to different filler openings.The oil circuit transformation realizes can realizing by various ways the control fuel feeding of different filler openings, is current techique.
Improve the sliding bearing ride quality with the control oil feeding method, can carry out at the scene in equipment running process, also can be when oil supply system designs, the system design parameters that employing is obtained from fuel feeding control test, fix oil mass, oil pressure and the ratio data thereof of each filler opening, reach and improve the operation stability of axle in sliding bearing etc.
Below in conjunction with accompanying drawing the present invention is done more detailed explanation.Accompanying drawing is depicted as the operation embodiment of axle on elliptic bearing.
Fig. 1 is blocked up for the bearing in the elliptic bearing carries oil film, the shaft position schematic diagram that axle locality in bearing shell is not right.
Fig. 2 is blocked up for the bearing in the elliptic bearing carries oil film, axle position axle position schematic representation in the right direction in bearing shell.
Fig. 3 is better for the bearing in the elliptic bearing carries oil film, the shaft position schematic diagram that axle locality in bearing shell is not right.
Fig. 4 is better for the bearing in the elliptic bearing carries oil film, the shaft position schematic diagram that axle position in bearing shell is in the right direction.
In Fig. 1～4, F is for respect to acting on making a concerted effort beyond the epitrochanterian oil-film removing support force, and left side oil-in is upper oil film wedge oil film oil-in, and the right oil-in is lower oil film wedge film (carrying oil film) oil-in of bursting.
Fig. 5 is the axle position schematic representation that shaft centre line and bearing axis intersect.
Fig. 6 is the axle position schematic representation that shaft centre line and two bearings center line intersect.
Fig. 7 is embodiment of the present invention block diagram, also is specification digest accompanying drawing of the present invention.
It is generally acknowledged that the shaft position situation of Fig. 1 and Fig. 2 can not take place, but this type of situation often occurs on some equipment, be not familiar with by people because using Instrument observation.Because the heavy oil film by poor rigidity supports axle journal, if the size and Orientation of power F changes, will cause that axle produces displacement, will cause big shaft vibration if alternation takes place power F.The more front two kinds of situations in the position of Fig. 3 axis are good, but axle in bearing shell direction not to also producing larger vibration.Fig. 4 supports axle journal by the good book oil film of rigidity, and the oil film bearing capacity is consistent with the external force load, and axle is when high speed rotating, and the book oil film can provide very big support force, and power F changes the vibration that can not cause that also axle is big within the specific limits.Fig. 5, shown in Figure 6 be that the situation that shaft centre line and bearing axis intersect appears in high speed shaft in running, this type of situation occurs and just be difficult to set up dynamic pressure oil film, cause damage of bearings.
As shown in Figure 7, improve axle operation conditions method in sliding bearing and comprise two contents partly, observe and control the position of oily regulating shaft in bearing shell, observe and control oily regulating shaft center line and be tending towards parallel with the bearing bush center line.
The equipment fault analysis visualizer of shaft centre line position display function is equipped with, on every secondary elliptic bush bearing support, two displacement transducers are installed relatively vertically radially, and according to field condition fitting key phase phase detector or analogue phase sensor or photoelectricity phase detector.Use the equipment fault analysis visualizer, observe the situation of running axis in bearing shell.If axle in the position of running axis in bearing shell as shown in Figure 1, its carrying oil film is thick, and the left and right sides position of axle in bearing shell is not right, and this state stabilizer shaft is very poor, as long as external force changes slightly and will cause the very big vibration of axle.Under the monitoring of equipment fault analysis scope, adjust oil inlet quantity, oil pressure and the ratio thereof of the different oil-ins of elliptic bush (bearing shell), for example the oil mass of the oil-in on the left side is reduced or oil pressure is turned down, and the oil mass of the oil-in on the right is strengthened or oil pressure is heightened, the position of axle in bearing shell is adjusted into as shown in Figure 4 state, and seeks the Best Point of the position of axle in bearing shell; As shown in Figure 2 situation occurs such as the position of running axis in bearing shell, its carrying oil film is thick, and the stability of axle in bearing shell is also relatively poor, changing under the External Force Acting, will cause bigger shaft vibration.Under the monitoring of equipment fault analysis scope, the oil inlet quantity of left side oil-in can be strengthened or oil pressure is heightened, the oil inlet quantity of the right oil-in is reduced or oil pressure is turned down, axle position in bearing shell is adjusted into as shown in Figure 4 state, and the Best Point of searching axle position in bearing shell, make it have good stability; Such as the position of running axis in bearing shell state as shown in Figure 3, its carrying oil film is better, but the left and right sides position of axle in bearing shell is not right, and this state stabilizer shaft is also bad, under the External Force Acting that changes, also will cause bigger shaft vibration.Under the monitoring of equipment fault analysis scope, the oil inlet quantity of left side oil-in can be reduced or oil pressure is turned down, the oil inlet quantity of the right oil-in is strengthened or oil pressure is heightened, the position of axle in bearing shell is adjusted into as shown in Figure 4 state, and the Best Point of searching axle position in bearing shell, make axle have good stability.Such as the position of running axis in bearing shell as shown in Figure 4, the carrying oil film is good, the good stability of this state axle, but can also seek the Best Point of axle in bearing shell, further improve the stability of axle in bearing shell.Utilize the equipment fault analysis scope to observe situation that high speed shaft shaft centre line and bearing bush center line in running intersect as shown in Figure 5, the big end easy oil leakage of wedge is difficult to form the good carrying oil film of rigidity, damages easily bearing shell; If shaft centre line and two bearing shell center lines intersect such as the situation of Fig. 6, the lower oil film wedge oil mass of one side bearing shell that can shaft centre line is low increases or oil pressure improves, upper oil film wedge oil mass is reduced or oil pressure is turned down, perhaps the lower oil film wedge oil mass of one side bearing shell that shaft centre line is high reduces or oil pressure is turned down simultaneously, upper oil film wedge oil mass is increased or oil pressure improves.By adjusting the position of different bearing shell axis, make shaft centre line be tending towards parallel with the bearing bush center line, and the position of axle in bearing shell is adjusted into as shown in Figure 4 state like this, seek the optimum position of axle in bearing shell.
Employing has very big effect in the method for different oil-ins adjusting oil inlet quantity, oil pressure and ratios thereof for improving axle operation conditions in sliding bearing, and especially improving the stability of high-speed rotating shaft in axle more has use value.This method not only can be used at the scene, and the design parameter in the time of also can designing as oil supply system carries out the immobilization utilization.
The above embodiment also is a most preferred embodiment of the present invention.
Claims (2)
1, a kind of method of improving axle operation conditions in sliding bearing, it comprises oil inlet quantity, oil pressure and the ratio thereof of the different oil-ins of adjusting bearing shell and the position of the axle of the different bearing shells of adjustment, it is characterized in that under the monitoring of equipment fault analysis scope, strengthen or reduce the oil inlet quantity of the different oil-ins of bearing shell, heighten or turn down the ratio of oil pressure and the different oil-in oil inlet quantities of adjustment bearing shell and the oil pressure of the different oil-ins of bearing shell, seek the amount best placement of axle in bearing shell; Under the monitoring of equipment fault analysis scope, observe the situation that high speed shaft shaft centre line and bearing bush center line in running intersect, adjust the position of different bearing shell axis, make shaft centre line be tending towards parallel with the bearing bush center line, and seek the optimum position of axle in bearing shell.
2, the method for improving axle operation conditions in sliding bearing according to claim 1, it is characterized in that adjusting the position of axle in bearing shell is to realize by oil mass, oil pressure and the ratio thereof of adjusting different oil-ins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001134418A CN1140707C (en) | 2000-05-16 | 2000-05-16 | Method for improving running condition of axle in slide bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001134418A CN1140707C (en) | 2000-05-16 | 2000-05-16 | Method for improving running condition of axle in slide bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1273334A true CN1273334A (en) | 2000-11-15 |
| CN1140707C CN1140707C (en) | 2004-03-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001134418A Expired - Fee Related CN1140707C (en) | 2000-05-16 | 2000-05-16 | Method for improving running condition of axle in slide bearing |
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| Country | Link |
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| CN (1) | CN1140707C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022431A (en) * | 2010-12-17 | 2011-04-20 | 西安交通大学 | Intelligent state-adjustable elastic elliptical sliding bearing |
| CN102022430A (en) * | 2010-12-17 | 2011-04-20 | 西安交通大学 | Intelligent variable elliptic sliding bearing assembly |
| CN104314997A (en) * | 2014-08-19 | 2015-01-28 | 中广核工程有限公司 | Inclination detecting method and automatic rectification method for bearing bush |
| CN107218299A (en) * | 2017-08-03 | 2017-09-29 | 中冶赛迪工程技术股份有限公司 | Laying head ellipse filmatic bearing structure |
-
2000
- 2000-05-16 CN CNB001134418A patent/CN1140707C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022431A (en) * | 2010-12-17 | 2011-04-20 | 西安交通大学 | Intelligent state-adjustable elastic elliptical sliding bearing |
| CN102022430A (en) * | 2010-12-17 | 2011-04-20 | 西安交通大学 | Intelligent variable elliptic sliding bearing assembly |
| CN102022430B (en) * | 2010-12-17 | 2012-07-04 | 西安交通大学 | Intelligent variable elliptic sliding bearing assembly |
| CN102022431B (en) * | 2010-12-17 | 2013-01-02 | 西安交通大学 | Intelligent state-adjustable elastic elliptical sliding bearing |
| CN104314997A (en) * | 2014-08-19 | 2015-01-28 | 中广核工程有限公司 | Inclination detecting method and automatic rectification method for bearing bush |
| CN104314997B (en) * | 2014-08-19 | 2019-01-15 | 中广核工程有限公司 | Bearing shell slant detection method and automatic inclination correction method |
| CN107218299A (en) * | 2017-08-03 | 2017-09-29 | 中冶赛迪工程技术股份有限公司 | Laying head ellipse filmatic bearing structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1140707C (en) | 2004-03-03 |
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