CN106124211A - A kind of test parameters scaling method of bearing testing machine - Google Patents
A kind of test parameters scaling method of bearing testing machine Download PDFInfo
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- CN106124211A CN106124211A CN201610422365.2A CN201610422365A CN106124211A CN 106124211 A CN106124211 A CN 106124211A CN 201610422365 A CN201610422365 A CN 201610422365A CN 106124211 A CN106124211 A CN 106124211A
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- speed
- mainshaft
- load
- testing machine
- bearing testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/04—Bearings
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The test parameters scaling method of a kind of bearing testing machine, belongs to measurement collimation technique field, it solves the most domestic problem not having special bearing testing machine appraisal organization.It includes the step of the rating test device speed of mainshaft, the step of rating test device load and demarcates the step of flow of lubrication；The step of the rating test device speed of mainshaft includes obtaining speed of mainshaft data, calculate speed of mainshaft error and judge whether bearing testing machine is demarcated by the speed of mainshaft, the step of rating test device load includes obtaining load data, whether assumed (specified) load error and judgement bearing testing machine pass through load calibration, the step demarcating flow of lubrication includes demarcating nozzle flow and demarcating ring down-off, the average external volume of the lubricating oil that interior gap under nozzle and ring per minute is flowed out measured respectively by employing standard measuring cup, and judge that the difference of this average external volume and test requirements document value is whether in the range of the error specified by testing crew.The present invention is applicable to the test parameters of bearing testing machine and demarcates.
Description
Technical field
The present invention relates to a kind of parameter calibration method, belong to measurement collimation technique field.
Background technology
Bearing test refers to bearing is placed under certain applying working condition operating, verifies whether bearing reaches intended property
Energy and service life.Bearing testing machine should to greatest extent simulation bearing electromotor use the main working parameters in envelope curve and
Environmental condition, refers mainly to bearing working rotating speed, load, temperature, assembled condition and lubricating condition.Reply bearing testing machine before test
Comprehensively examine and determine and verify, to ensure that the performance of bearing testing machine meets bearing test requirement.Bearing testing machine is nonstandard
Equipment, the most domestic do not have special exerciser appraisal organization.For guaranteeing that exerciser can the actual work of simulated engine truly
Make condition, need the accordance of test speed, load, temperature, assembled condition and lubricating condition is checked, it is ensured that test bar
Part is accurate, and result of the test is true and reliable.Wherein temperature measurement system is standard transducer and display instrument, can pass through metrological service
Carrying out specialty calibrating, assembled condition can be designed by test tool and inspection carries out condition confirmation.
Summary of the invention
The present invention is based on the most domestic situation not having special bearing testing machine appraisal organization, it is proposed that a kind of bearing examination
Test the test parameters scaling method of device.
The test parameters scaling method of a kind of bearing testing machine of the present invention, the method includes rating test device main shaft
The step of rotating speed, the step of rating test device load and the step of demarcation flow of lubrication；
The step of the rating test device speed of mainshaft includes:
Step one by one, input multiple speed of mainshaft set-point, and given with multiple speeds of mainshaft by rated rotational frequency table collection
Multiple speed of mainshaft calibration values that definite value is corresponding, it is thus achieved that many group speed of mainshaft data, one group of speed of mainshaft data includes one
The speed of mainshaft calibration value of speed of mainshaft set-point and correspondence thereof；
Step one two, according to speed of mainshaft error formula: speed of mainshaft error=(speed of mainshaft calibration value-speed of mainshaft
Set-point)/speed of mainshaft set-point, calculate multiple speed of mainshaft errors that many group speed of mainshaft data are corresponding；
Step one three, when multiple speed of mainshaft errors are respectively less than 0.5% and during more than 0.5%, and bearing testing machine is by main
Axle rotating speed is demarcated, and otherwise, bearing testing machine is not demarcated by the speed of mainshaft；
The step of rating test device load includes:
Step 2 one, input multiple load set-point, and by the standard force-measuring instrument being connected with charger gather with
Multiple load calibration values that multiple load set-points are corresponding, it is thus achieved that organize load data, one group of load data includes a load more
The load calibration value of lotus set-point and correspondence thereof；
Step 2 two, according to load error formula: load error=(load calibration value-load set-point)/load give
Value, calculates multiple load errors that many group load datas are corresponding；
Step 2 three, when multiple load errors be respectively less than 2% and more than 2% time, bearing testing machine pass through load calibration,
Otherwise, bearing testing machine does not passes through load calibration；
The step demarcating flow of lubrication includes demarcating the step of nozzle flow and demarcates the step of ring down-off；
The step demarcating nozzle flow includes:
Step 3 one, at T1In time, collect the lubricating oil exported by single-nozzle, and by this profit of standard counting cup meter
The volume of lubricating oil；
Step 3 two, step 3 one is repeated several times, and calculates the average external volume of single-nozzle interior output lubricating oil per minute
S1；
The given flow that the single-nozzle of step 3 three, bearing test requirement is per minute is S2, such as S1With S2Difference by
In the range of the nozzle flow error that testing crew specifies, bearing testing machine is demarcated by nozzle flow, otherwise, and bearing testing machine
Do not demarcated by nozzle flow；
The step demarcating ring down-off includes:
Step 4 one, at T2In time, it is collected from the lubricating oil that under ring, gap is flowed out, and by this profit of standard counting cup meter
The volume of lubricating oil；
Step 4 two, step 4 one is repeated several times, and calculate per minute in gap is flowed out under ring lubricating oil average
Volume S3；
Step 4 three, bearing test require per minute in gap is flowed out under ring the volume of lubricating oil be S4, such as S3With
S4Difference under the ring specified by testing crew in the range of gap flow of lubrication error, bearing testing machine is dirty by ring
Amount is demarcated, and otherwise, bearing testing machine is not demarcated by ring down-off.
The rated rotational frequency table, the standard that relate in the test parameters scaling method of a kind of bearing testing machine of the present invention are surveyed
Power instrument and standard measuring cup, all within the re-testing periods, can be traced to the source to the highest mete-wand of country, and it measures scope and precision meets
Calibration request.
The test parameters scaling method of a kind of bearing testing machine of the present invention, specification bearing testing machine main shaft turns
Speed, load and the calibration process of flow of lubrication, it is possible to ensure that the test parameters of bearing testing machine meets test requirements document, it is ensured that axle
Hold the result of test accurately and reliably.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that the speed of mainshaft is demarcated；
Fig. 2 is the schematic diagram of exerciser load calibration.
Detailed description of the invention
Detailed description of the invention one: combine Fig. 1 and Fig. 2 and present embodiment is described, a kind of bearing examination described in present embodiment
Testing the test parameters scaling method of device, the method includes the step of the rating test device speed of mainshaft, the step of rating test device load
The rapid step with demarcation flow of lubrication；
The step of the rating test device speed of mainshaft includes:
Step one by one, input multiple speed of mainshaft set-point, and given with multiple speeds of mainshaft by rated rotational frequency table collection
Multiple speed of mainshaft calibration values that definite value is corresponding, it is thus achieved that many group speed of mainshaft data, one group of speed of mainshaft data includes one
The speed of mainshaft calibration value of speed of mainshaft set-point and correspondence thereof；
Step one two, according to speed of mainshaft error formula: speed of mainshaft error=(speed of mainshaft calibration value-speed of mainshaft
Set-point)/speed of mainshaft set-point, calculate multiple speed of mainshaft errors that many group speed of mainshaft data are corresponding；
Step one three, when multiple speed of mainshaft errors are respectively less than 0.5% and during more than 0.5%, and bearing testing machine is by main
Axle rotating speed is demarcated, and otherwise, bearing testing machine is not demarcated by the speed of mainshaft；
The step of rating test device load includes:
Step 2 one, input multiple load set-point, and by the standard force-measuring instrument being connected with charger gather with
Multiple load calibration values that multiple load set-points are corresponding, it is thus achieved that organize load data, one group of load data includes a load more
The load calibration value of lotus set-point and correspondence thereof；
Step 2 two, according to load error formula: load error=(load calibration value-load set-point)/load give
Value, calculates multiple load errors that many group load datas are corresponding；
Step 2 three, when multiple load errors be respectively less than 2% and more than 2% time, bearing testing machine pass through load calibration,
Otherwise, bearing testing machine does not passes through load calibration；
The step demarcating flow of lubrication includes demarcating the step of nozzle flow and demarcates the step of ring down-off；
The step demarcating nozzle flow includes:
Step 3 one, at T1In time, collect the lubricating oil exported by single-nozzle, and by this profit of standard counting cup meter
The volume of lubricating oil；
Step 3 two, step 3 one is repeated several times, and calculates the average external volume of single-nozzle interior output lubricating oil per minute
S1；
The given flow that the single-nozzle of step 3 three, bearing test requirement is per minute is S2, such as S1With S2Difference by
In the range of the nozzle flow error that testing crew specifies, bearing testing machine is demarcated by nozzle flow, otherwise, and bearing testing machine
Do not demarcated by nozzle flow；
The step demarcating ring down-off includes:
Step 4 one, at T2In time, it is collected from the lubricating oil that under ring, gap is flowed out, and by this profit of standard counting cup meter
The volume of lubricating oil；
Step 4 two, step 4 one is repeated several times, and calculate per minute in gap is flowed out under ring lubricating oil average
Volume S3；
Step 4 three, bearing test require per minute in gap is flowed out under ring the volume of lubricating oil be S4, such as S3With
S4Difference under the ring specified by testing crew in the range of gap flow of lubrication error, bearing testing machine is dirty by ring
Amount is demarcated, and otherwise, bearing testing machine is not demarcated by ring down-off.
Detailed description of the invention two: present embodiment is the test parameters to a kind of bearing testing machine described in embodiment one
The further restriction of scaling method, the most described input of step multiple speed of mainshaft set-point includes:
Step May Day, in exerciser main shaft rated speed, select five speed of mainshaft set-points in arithmetic progression, from
Little to being followed successively by greatly N1、N2、N3、N4And N5；
Step 5 two, input N sequentially1、N2、N3、N4、N5、N4、N3、N2And N1。
Detailed description of the invention three: present embodiment is the test parameters to a kind of bearing testing machine described in embodiment one
The further of scaling method limits, and inputs multiple load set-point and include described in step 2 one:
Step 6 one, in exerciser rated load, select five load set-points in arithmetic progression, depend on from small to large
Secondary for M1、M2、M3、M4And M5；
Step 6 two, input M sequentially1、M2、M3、M4、M5、M4、M3、M2And M1。
Detailed description of the invention four: present embodiment is the test parameters to a kind of bearing testing machine described in embodiment three
The further restriction of scaling method, changes the standard force-measuring instrument of different range, and implements step 6 one.
The load calibration of bearing testing machine, due to the loading accuracy requirement of side crops industry to be met, is wanted when selecting calibrating instrument
Select the standard force-measuring instrument of different range.Standard force-measuring instrument is generally divided into small-range (0-10000N) and wide range (is more than
10000N) two kinds, if the rated load scope of exerciser is 0-50000N, need to use small-range standard force-measuring instrument and big
The standard dynamometer table segmenting (i.e. 0-10000N and 10000-50000N) of range carries out load calibration.
Claims (4)
1. the test parameters scaling method of a bearing testing machine, it is characterised in that the method includes that rating test device main shaft turns
The step of speed, the step of rating test device load and the step of demarcation flow of lubrication；
The step of the rating test device speed of mainshaft includes:
Step one by one, input multiple speed of mainshaft set-point, and gathered and multiple speed of mainshaft set-points by rated rotational frequency table
Corresponding multiple speed of mainshaft calibration values, it is thus achieved that many group speed of mainshaft data, one group of speed of mainshaft data includes a main shaft
The speed of mainshaft calibration value of rotary speed setting value and correspondence thereof；
Step one two, according to speed of mainshaft error formula: speed of mainshaft error=(speed of mainshaft calibration value-speed of mainshaft give
Value)/speed of mainshaft set-point, calculate multiple speed of mainshaft errors that many group speed of mainshaft data are corresponding；
Step one three, when multiple speed of mainshaft errors be respectively less than 0.5% and more than 0.5% time, bearing testing machine is turned by main shaft
Speed is demarcated, and otherwise, bearing testing machine is not demarcated by the speed of mainshaft；
The step of rating test device load includes:
Step 2 one, input multiple load set-point, and gathered with multiple by the standard force-measuring instrument being connected with charger
Multiple load calibration values that load set-point is corresponding, it is thus achieved that organize load data more, one group of load data include a load to
The load calibration value of definite value and correspondence thereof；
Step 2 two, according to load error formula: load error=(load calibration value-load set-point)/load set-point, meter
Calculate multiple load errors that many group load datas are corresponding；
Step 2 three, when multiple load errors be respectively less than 2% and more than 2% time, bearing testing machine pass through load calibration, otherwise,
Bearing testing machine does not passes through load calibration；
The step demarcating flow of lubrication includes demarcating the step of nozzle flow and demarcates the step of ring down-off；
The step demarcating nozzle flow includes:
Step 3 one, at T1In time, collect the lubricating oil exported by single-nozzle, and by this lubricating oil of standard counting cup meter
Volume；
Step 3 two, step 3 one is repeated several times, and calculates average external volume S of single-nozzle interior output lubricating oil per minute1；
The given flow that the single-nozzle of step 3 three, bearing test requirement is per minute is S2, such as S1With S2Difference by testing
In the range of the nozzle flow error that personnel specify, bearing testing machine is demarcated by nozzle flow, and otherwise, bearing testing machine does not leads to
Cross nozzle flow calibration；
The step demarcating ring down-off includes:
Step 4 one, at T2In time, it is collected from the lubricating oil that under ring, gap is flowed out, and by this lubricating oil of standard counting cup meter
Volume；
Step 4 two, step 4 one is repeated several times, and calculate per minute under ring the average external volume of the lubricating oil that gap is flowed out
S3；
Step 4 three, bearing test require per minute in gap is flowed out under ring the volume of lubricating oil be S4, such as S3With S4's
Difference is under the ring specified by testing crew in the range of gap flow of lubrication error, and bearing testing machine passes through ring down-off mark
Fixed, otherwise, bearing testing machine is not demarcated by ring down-off.
The test parameters scaling method of a kind of bearing testing machine the most according to claim 1, it is characterised in that step is one by one
Described input multiple speed of mainshaft set-point includes:
Step May Day, in exerciser main shaft rated speed, select five speed of mainshaft set-points in arithmetic progression, from little to
It is followed successively by greatly N1、N2、N3、N4And N5；
Step 5 two, input N sequentially1、N2、N3、N4、N5、N4、N3、N2And N1。
The test parameters scaling method of a kind of bearing testing machine the most according to claim 1, it is characterised in that step 2 one
Described input multiple load set-point includes:
Step 6 one, in exerciser rated load, select five load set-points in arithmetic progression, be followed successively by from small to large
M1、M2、M3、M4And M5；
Step 6 two, input M sequentially1、M2、M3、M4、M5、M4、M3、M2And M1。
The test parameters scaling method of a kind of bearing testing machine the most according to claim 3, it is characterised in that change difference
The standard force-measuring instrument of range, and implement step 6 one.
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Cited By (2)
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| CN115808309A (en) * | 2023-02-09 | 2023-03-17 | 哈尔滨科锐同创机模制造有限公司 | Bearing monitoring method and system applied to bearing test |
| CN115808310A (en) * | 2023-02-09 | 2023-03-17 | 哈尔滨科锐同创机模制造有限公司 | Test parameter calibration method and system applied to bearing test |
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| CN115808309A (en) * | 2023-02-09 | 2023-03-17 | 哈尔滨科锐同创机模制造有限公司 | Bearing monitoring method and system applied to bearing test |
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| CN106124211B (en) | 2018-07-27 |
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