CN106151856A - The accurate measurement method of operation roll of mill bearing grease addition - Google Patents
The accurate measurement method of operation roll of mill bearing grease addition Download PDFInfo
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- CN106151856A CN106151856A CN201510188647.6A CN201510188647A CN106151856A CN 106151856 A CN106151856 A CN 106151856A CN 201510188647 A CN201510188647 A CN 201510188647A CN 106151856 A CN106151856 A CN 106151856A
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- bearing
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Abstract
The invention discloses a kind of accurate measurement method of operation roll of mill bearing grease addition, the i.e. running state parameter of this method collection work roller bearing, and calculate correction factor accordingly, theory is filled fat amount and is modified, obtain correction and fill fat amount；Filling fat amount fill the arithmetic mean of instantaneous value of fat amount, as initially filling fat amount, bearing is carried out currying using existing with revising, line period test run of going forward side by side, oils and fats and bearing are detected by process of the test；According to testing result, determine actual stuffing amount.The stuffing amount of this method energy accurately gage work roller bearing, it is achieved the accurate lubrication of bearing, improves the reasonability of bearing grease use, reduces the waste of grease, reduce production cost.
Description
Technical field
The present invention relates to a kind of accurate measurement method of operation roll of mill bearing grease addition.
Background technology
Operation roll of mill bearing can be borrowed without supplementary grease technical standard and ripe theoretical research result at present
Mirror, existing operation or work standard Main Basis each frame rotating speed and the difference of carrying, it is empirically determined bearing and supplements
Cycle of oils and fats and fill fat amount.Oils and fats magnitude of recruitment is according to " the old oils and fats of Bearing inner is all got rid of, bearing every time
At seat sealing, new oils and fats occurs " operation or work standard perform, it fills fat amount and is set as existing filling fat amount Gm(gram).
And the general disposable loading of bearing theory grease is calculated by formula (1),
G=0.005 × D × B (1)
Wherein: G is that workroll bearing ideally disposable grease theory fills fat amount, unit is gram；D
For bearing outside diameter；B is bearing width.
This theory is filled in fat amount G application process at the scene and is lacked certain scientific basis, for avoiding bearing oil starvation
Burn, during execute-in-place, typically can supplement amount of grease more, the most existing fill fat amount Gm, cause oil consumption
Huge, improve production cost；Bearing fills fat and is usually manual working simultaneously, it is impossible to accurately control to fill fat amount.
Summary of the invention
The technical problem to be solved is to provide a kind of operation roll of mill bearing grease addition
Accurate measurement method, the stuffing amount of this method energy accurately gage work roller bearing, it is achieved the accurate lubrication of bearing,
Improve the reasonability that bearing grease uses, reduce the waste of grease, reduce production cost.
For solving above-mentioned technical problem, the accurate measurement side of operation roll of mill bearing grease addition of the present invention
Method comprises the steps:
Step one, the running state parameter of collection work roller bearing, including working speed N, operating temperature t,
Moisture affects W, sealing state S, suffered shock loading C；
Step 2, calculating correction factor α, α=W × S × C × N,
Wherein: have moisture to affect W=0.9, affect W=1 without moisture；Bearing seal complete failure S=0.1, axle
Holding the intact S=1 of sealing, remaining sealing state S numerical value is between 0.1-1；There is shock loading C=0.95,
C=1 without shock loading；Working speed≤100rpm, N=1, working speed > 100rpm time, rotating speed often promotes
100rpm, then N numerical value reduces by 0.1, N minimum 0.1；
Step 3, according to correction factor α, theory is filled fat amount G and be modified, obtain correction and fill fat amount Gs,
Gs=G/ α (2)
And Gs≤3G；
Step 4, fill fat amount G with existingmFat amount G is filled with correctionsArithmetic mean of instantaneous value as initially filling fat amount
Gt1Bearing carries out currying, and bearing runs n cycle and tests, and Bearing inner is moistened by process of the test
Consistent lubricant samples and carries out physicochemical property and Debris Analysis, infrared thermal imagery analysis, according to grease physicochemical property and
Abrasive particle discrimination standard, detection bearing is initially filling fat amount Gt1Lower stable operation；
Step 5, according to Bearing inner grease sample analysis and Bearing testing result, determine actual stuffing amount,
If Gt1≥Gm, then test termination, final actually required stuffing amount is existing to fill fat amount Gm,
If Gti≥Gt(i-1), then test termination, final actually required stuffing amount is Gt(i-1),
If GtiIt is infinitely close to Gs, final actually required stuffing amount is that fat amount G is filled in corrections,
Wherein: i is i-th bearing cycle of operation, i=2,3 ..., n.
Further, in the bearing operation test cycle, every testing result of process of the test is the most just occurring one
Often, then fat amount G is initially being filledt1On the basis of increase and 10% bearing carried out currying, and re-start
Bearing test, repeats bearing test till every testing result is normal.
Further, bearing repeats in process of the test, bearing stuffing amount G of each test periodtiDetermine as the following formula:
Gti=(Gt(i-1)+Gs)/2 (3)
Wherein: i is i-th bearing cycle of operation, i=2,3 ..., n.
Owing to the accurate measurement method of operation roll of mill bearing grease addition of the present invention have employed above-mentioned skill
Art scheme, the i.e. running state parameter of this method collection work roller bearing, and calculate correction factor accordingly, right
Theory is filled fat amount and is modified, and obtains correction and fills fat amount；Put down with the arithmetic that fat amount is filled in correction with existing fat amount of filling
Average carries out currying as initially filling fat amount to bearing, line period test run of going forward side by side, process of the test pair
Oils and fats and bearing detect；According to testing result, determine actual stuffing amount.This method can accurately measure work
Make the stuffing amount of roller bearing, it is achieved the accurate lubrication of bearing, improve the reasonability that bearing grease uses, subtract
The waste of few grease, reduces production cost.
Detailed description of the invention
The accurate measurement method of operation roll of mill bearing grease addition of the present invention is existing with workroll bearing
Existing fill fat amount Gm, based on theory fills fat amount G, and follow these steps to perform:
Step one, the running state parameter of collection work roller bearing, including working speed N, operating temperature t,
Moisture affects W, sealing state S, suffered shock loading C；
Step 2, calculating correction factor α, α=W × S × C × N,
Wherein: have moisture to affect W=0.9, affect W=1 without moisture；Bearing seal complete failure S=0.1, axle
Holding the intact S=1 of sealing, remaining sealing state S numerical value is between 0.1-1；There is shock loading C=0.95,
C=1 without shock loading；Working speed≤100rpm, N=1, working speed > 100rpm time, rotating speed often promotes
100rpm, then N numerical value reduces by 0.1, N minimum 0.1；
Step 3, according to correction factor α, theory is filled fat amount G and be modified, obtain correction and fill fat amount Gs,
Gs=G/ α (2)
And Gs≤3G；
Step 4, fill fat amount G with existingmFat amount G is filled with correctionsArithmetic mean of instantaneous value as initially filling fat amount
Gt1Bearing carries out currying, and bearing runs n cycle and tests, and process of the test Bearing inner lubricates
Fat samples and carries out physicochemical property and Debris Analysis, infrared thermal imagery analysis, according to grease physicochemical property and mill
Grain discrimination standard, detection bearing is initially filling fat amount Gt1Lower stable operation；
Step 5, according to Bearing inner grease sample analysis and Bearing testing result, determine actual stuffing amount,
If Gt1≥Gm, then test termination, final actually required stuffing amount is existing to fill fat amount Gm,
If Gti≥Gt(i-1), then test termination, final actually required stuffing amount is Gt(i-1),
If GtiIt is infinitely close to Gs, final actually required stuffing amount is that fat amount G is filled in corrections,
Wherein: i is i-th bearing cycle of operation, i=2,3 ..., n.
Further, in the bearing operation test cycle, every testing result of process of the test is the most just occurring one
Often, then fat amount G is initially being filledt1On the basis of increase and 10% bearing carried out currying, and re-start
Bearing test, repeats bearing test till every testing result is normal.
Further, bearing repeats in process of the test, bearing stuffing amount G of each test periodtiDetermine as the following formula:
Gti=(Gt(i-1)+Gs)/2 (3)
Wherein: i is i-th bearing cycle of operation, i=2,3 ..., n.
During the actual application of this method, the workroll bearing that working condition can be selected on production line of rolling mill worst is made
For subjects, and consider the shock loading of bearing, sealing state, working speed, operating temperature etc.
Running status.Calculate correction according to bearing running state parameter and fill fat amount Gs, determine bearing initially fills fat amount
Gt1Bearing carrying out currying, and bearing is carried out first stage operation test, oils and fats is entered by process of the test
Row physicochemical property and Debris Analysis, infrared thermal imagery analysis, carry out state-detection to bearing, it is ensured that bearing test
During status safety.After four working cycle of workroll bearing test run, such as every testing result just
Chang Ze can determine that the actual stuffing amount of bearing, as abnormal in every testing result appearance one, then enter follow-up
Step-by-step test, on the basis of initially filling fat amount increase by 10%, re-start test, retrial of laying equal stress on test until
Till every testing result is normal.
Table 1 lists the running state parameter of this workroll bearing, and obtains correction factor α accordingly；
Table 1: the determination of correction factor α
| W | S | C | N | Correction factor α |
| 0.9 | 0.9 | 0.95 | 1 | 0.77 |
Table 2 lists this workroll bearing dimensional parameters and respectively fills fat amount；
Table 2 bearing target stuffing amount and the determination of test stuffing amount
Through surveying this working roll bearing block temperature, maximum temperature is 32 DEG C, and minimum temperature is 24 DEG C, averagely temperature
Degree is 28 DEG C, is below the bearing block temperature 50 C during bearing operation of regulation, it is therefore prevented that inside bearing block
Oils and fats produces coking phenomenon because of high temperature, it is ensured that the reliability service of bearing.
This method is extended to the roll bearing between certain hot rolling mill grinding roller, and follows the tracks of the fat sample analysis of bearing,
To result such as table 3,
Table 3:
Analytical data shows, after using this method that workroll bearing stuffing amount is carried out accurate measurement, and grease
Performance and bearing on-line monitoring conclusion all within the scope of safely controllable, improve the reasonability of stuffing,
Effectively reduce each rolling line grease consumption, directly contribute for reduction ton steel production cost.
Claims (3)
1. the accurate measurement method of an operation roll of mill bearing grease addition, it is characterised in that this method comprises the steps:
Step one, the running state parameter of collection work roller bearing, affect W, sealing state S, suffered shock loading C including working speed N, operating temperature t, moisture；
Step 2, calculating correction factor α, α=W × S × C × N,
Wherein: have moisture to affect W=0.9, affect W=1 without moisture；Bearing seal complete failure S=0.1, the intact S=1 of bearing seal, remaining sealing state S numerical value is between 0.1-1；There is shock loading C=0.95, without shock loading C=1；Working speed≤100rpm, N=1, working speed > 100rpm time, rotating speed often promotes 100rpm, then N numerical value reduces by 0.1, N minimum 0.1；
Step 3, according to correction factor α, theory is filled fat amount G and be modified, obtain correction and fill fat amount Gs,
Gs=G/α
(2)
And Gs≤3G；
Step 4, fill fat amount G with existingmFat amount G is filled with correctionsArithmetic mean of instantaneous value as initially filling fat amount Gt1Bearing is carried out currying, bearing runs n cycle and tests, process of the test samples to bearing internal lubrication fat and carries out physicochemical property and Debris Analysis, infrared thermal imagery analysis, and according to grease physicochemical property and abrasive particle discrimination standard, detection bearing is initially filling fat amount Gt1Lower stable operation；
Step 5, according to Bearing inner grease sample analysis and Bearing testing result, determine actual stuffing amount,
If Gt1≥Gm, then test termination, final actually required stuffing amount is existing to fill fat amount Gm,
If Gti≥Gt(i-1), then test termination, final actually required stuffing amount is Gt(i-1),
If GtiIt is infinitely close to Gs, final actually required stuffing amount is that fat amount G is filled in corrections,
Wherein: i is i-th bearing cycle of operation, i=2,3 ..., n.
The accurate measurement method of operation roll of mill bearing grease addition the most according to claim 1, it is characterised in that: in the bearing operation test cycle, every testing result appearance one of process of the test is abnormal, then initially filling fat amount Gt1On the basis of increase by 10% bearing carried out currying, and re-start bearing test, repeat bearing test till every testing result is normal.
The accurate measurement method of operation roll of mill bearing grease addition the most according to claim 2, it is characterised in that: bearing repeats in process of the test, bearing stuffing amount G of each test periodtiDetermine as the following formula:
Gti=(Gt(i-1)+Gs)/2
(3)
Wherein: i is i-th bearing cycle of operation, i=2,3 ..., n.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510188647.6A CN106151856A (en) | 2015-04-20 | 2015-04-20 | The accurate measurement method of operation roll of mill bearing grease addition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510188647.6A CN106151856A (en) | 2015-04-20 | 2015-04-20 | The accurate measurement method of operation roll of mill bearing grease addition |
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| CN106151856A true CN106151856A (en) | 2016-11-23 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2206960Y (en) * | 1994-03-02 | 1995-09-06 | 崔秀伟 | Lubrication oil quality analysis instrument |
| EP1387165A1 (en) * | 2002-08-02 | 2004-02-04 | Flender Service GmbH | Method and device for monitoring the quality of lubricants using ion mobility spectroscopy |
| JP2005248034A (en) * | 2004-03-04 | 2005-09-15 | Ntn Corp | Grease composition, its preparation method, and antifriction bearing filled with the grease composition |
| WO2006127098A2 (en) * | 2005-05-24 | 2006-11-30 | Texaco Development Corporation | Method and test kit for the determination of iron content of in-use lubricants |
| JP2007292568A (en) * | 2006-04-25 | 2007-11-08 | Ntn Corp | Deterioration detector for lubricant, and bearing with detector |
| CN102032430A (en) * | 2009-09-25 | 2011-04-27 | 上海宝钢工业检测公司 | Method for confirming bearing lubricant grease adding amount |
-
2015
- 2015-04-20 CN CN201510188647.6A patent/CN106151856A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2206960Y (en) * | 1994-03-02 | 1995-09-06 | 崔秀伟 | Lubrication oil quality analysis instrument |
| EP1387165A1 (en) * | 2002-08-02 | 2004-02-04 | Flender Service GmbH | Method and device for monitoring the quality of lubricants using ion mobility spectroscopy |
| JP2005248034A (en) * | 2004-03-04 | 2005-09-15 | Ntn Corp | Grease composition, its preparation method, and antifriction bearing filled with the grease composition |
| WO2006127098A2 (en) * | 2005-05-24 | 2006-11-30 | Texaco Development Corporation | Method and test kit for the determination of iron content of in-use lubricants |
| JP2007292568A (en) * | 2006-04-25 | 2007-11-08 | Ntn Corp | Deterioration detector for lubricant, and bearing with detector |
| CN102032430A (en) * | 2009-09-25 | 2011-04-27 | 上海宝钢工业检测公司 | Method for confirming bearing lubricant grease adding amount |
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Application publication date: 20161123 |