CN106124211B - 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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- CN106124211B CN106124211B CN201610422365.2A CN201610422365A CN106124211B CN 106124211 B CN106124211 B CN 106124211B CN 201610422365 A CN201610422365 A CN 201610422365A CN 106124211 B CN106124211 B CN 106124211B
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- load
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- testing machine
- mainshaft
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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
Abstract
A kind of test parameters scaling method of bearing testing machine belongs to and measures collimation technique field, it solves the problems, such as domestic unspecial bearing testing machine appraisal organization at present.The step of the step of it includes the steps that the rating test device speed of mainshaft, rating test device load and calibration flow of lubrication；The step of rating test device speed of mainshaft includes obtaining speed of mainshaft data, it calculates speed of mainshaft error and whether judgement 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 of demarcating flow of lubrication includes calibration nozzle flow and calibration ring down-off, measure the average external volume of the lubricating oil flowed out from gap under nozzle and ring in per minute respectively using standard measuring cup, and judge the difference of the average external volume and test requirements document value whether in the range of the error as defined in testing crew.The test parameters that the present invention is suitable for bearing testing machine is demarcated.
Description
Technical field
The present invention relates to a kind of parameter calibration method, belongs to and measure collimation technique field.
Background technology
Bearing test refers to being placed in bearing under certain applying working condition to operate, to verify whether bearing reaches expected property
Energy and service life.Bearing testing machine should to greatest extent simulation bearing engine using in envelope curve main working parameters and
Environmental condition refers mainly to bearing working rotating speed, load, temperature, assembled condition and lubricating condition.Bearing testing machine is coped with before experiment
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, current domestic unspecial exerciser appraisal organization.For ensure exerciser can truly simulated engine practical work
Make condition, needs the accordance to test speed, load, temperature, assembled condition and lubricating condition to check, guarantee test item
Part is accurate, and test result is true and reliable.Wherein temperature measurement system is standard transducer and display instrument, can pass through metrological service
Professional calibrating is carried out, assembled condition can be designed and be examined carry out condition confirmation by test tool.
Invention content
A kind of the case where the present invention is based on the unspecial bearing testing machine appraisal organizations in the current country, it is proposed that bearing examination
Test the test parameters scaling method of device.
A kind of test parameters scaling method of bearing testing machine of the present invention, this method include rating test device main shaft
The step of the step of the step of rotating speed, rating test device load and calibration flow of lubrication；
The step of rating test device speed of mainshaft includes：
Step 1 one, the multiple speed of mainshaft given values of input, and acquired by rated rotational frequency table and given with multiple speeds of mainshaft
The corresponding multiple speed of mainshaft calibration values of definite value, obtain multigroup speed of mainshaft data, and one group of speed of mainshaft data includes one
Speed of mainshaft given value and its corresponding speed of mainshaft calibration value；
Step 1 two, according to speed of mainshaft error formula：The speed of mainshaft error=(speed of mainshaft calibration value-speed of mainshaft
Given value)/speed of mainshaft given value, calculate the corresponding multiple speed of mainshaft errors of multigroup speed of mainshaft data；
Step 1 three, when multiple speed of mainshaft errors be respectively less than 0.5% and more than ﹣ 0.5% when, bearing testing machine passes through master
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, the multiple load given values of input, and the acquisition of the standard force-measuring instrument by being connected with loading device and
Multiple corresponding multiple load calibration values of load given value, obtain multigroup load data, and one group of load data includes a load
Lotus given value and its corresponding load calibration value；
Step 2 two, according to load error formula：Load error=(load calibration value-load given value)/load is given
Value, calculates the corresponding multiple load errors of multigroup load data；
Step 2 three is respectively less than 2% and when more than ﹣ 2% when multiple load errors, bearing testing machine by load calibration,
Otherwise, bearing testing machine does not pass through load calibration；
The step of the step of demarcating flow of lubrication includes the steps that calibration nozzle flow and calibration ring down-off；
Demarcate nozzle flow the step of include：
Step 3 one, in T1In time, the lubricating oil exported by single-nozzle is collected, and pass through the standard counting cup meter profit
The volume of lubricating oil；
Step 3 one is repeated several times in step 3 two, and calculates the average external volume of single-nozzle interior output lubricating oil per minute
S1；
Step 3 three, the given flow that the single-nozzle of bearing test requirement is per minute are S2, such as S1With S2Difference by
In the range of nozzle flow error as defined in testing crew, bearing testing machine is demarcated by nozzle flow, otherwise, bearing testing machine
It is not demarcated by nozzle flow；
Demarcate ring down-off the step of include：
Step 4 one, in T2In time, the lubricating oil that gap is flowed out under ring, and pass through the standard counting cup meter profit
The volume of lubricating oil；
Step 4 one is repeated several times in step 4 two, and calculates being averaged for the lubricating oil that gap is flowed out under ring in per minute
Volume S3；
The volume for the interior lubricating oil that gap is flowed out under ring per minute that step 4 three, bearing test require is S4, such as S3With
S4Difference under the ring as defined in testing crew in the range of gap flow of lubrication error, bearing testing machine is flowed down by ring
Amount calibration, otherwise, bearing testing machine is not demarcated by ring down-off.
Rated rotational frequency table, standard involved in a kind of test parameters scaling method of bearing testing machine of the present invention are surveyed
Power instrument and standard measuring cup can trace to the source to national highest mete-wand, measurement range and precision meet within the re-testing periods
Calibration request.
The test parameters scaling method of bearing testing machine of the present invention a kind of, specification bearing testing machine main shaft turn
Speed, the calibration process of load and flow of lubrication, can ensure that the test parameters of bearing testing machine meets test requirements document, it is ensured that axis
The result for holding experiment is accurate and reliable.
Description of the drawings
Fig. 1 is the schematic diagram of speed of mainshaft calibration；
Fig. 2 is the schematic diagram of exerciser load calibration.
Specific implementation mode
Specific implementation mode one：Illustrate present embodiment in conjunction with Fig. 1 and Fig. 2, a kind of bearing examination described in present embodiment
The test parameters scaling method of device is tested, this method includes the steps that the rating test device speed of mainshaft, the step of rating test device load
The step of rapid and calibration flow of lubrication；
The step of rating test device speed of mainshaft includes：
Step 1 one, the multiple speed of mainshaft given values of input, and acquired by rated rotational frequency table and given with multiple speeds of mainshaft
The corresponding multiple speed of mainshaft calibration values of definite value, obtain multigroup speed of mainshaft data, and one group of speed of mainshaft data includes one
Speed of mainshaft given value and its corresponding speed of mainshaft calibration value；
Step 1 two, according to speed of mainshaft error formula：The speed of mainshaft error=(speed of mainshaft calibration value-speed of mainshaft
Given value)/speed of mainshaft given value, calculate the corresponding multiple speed of mainshaft errors of multigroup speed of mainshaft data；
Step 1 three, when multiple speed of mainshaft errors be respectively less than 0.5% and more than ﹣ 0.5% when, bearing testing machine passes through master
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, the multiple load given values of input, and the acquisition of the standard force-measuring instrument by being connected with loading device and
Multiple corresponding multiple load calibration values of load given value, obtain multigroup load data, and one group of load data includes a load
Lotus given value and its corresponding load calibration value；
Step 2 two, according to load error formula：Load error=(load calibration value-load given value)/load is given
Value, calculates the corresponding multiple load errors of multigroup load data；
Step 2 three is respectively less than 2% and when more than ﹣ 2% when multiple load errors, bearing testing machine by load calibration,
Otherwise, bearing testing machine does not pass through load calibration；
The step of the step of demarcating flow of lubrication includes the steps that calibration nozzle flow and calibration ring down-off；
Demarcate nozzle flow the step of include：
Step 3 one, in T1In time, the lubricating oil exported by single-nozzle is collected, and pass through the standard counting cup meter profit
The volume of lubricating oil；
Step 3 one is repeated several times in step 3 two, and calculates the average external volume of single-nozzle interior output lubricating oil per minute
S1；
Step 3 three, the given flow that the single-nozzle of bearing test requirement is per minute are S2, such as S1With S2Difference by
In the range of nozzle flow error as defined in testing crew, bearing testing machine is demarcated by nozzle flow, otherwise, bearing testing machine
It is not demarcated by nozzle flow；
Demarcate ring down-off the step of include：
Step 4 one, in T2In time, the lubricating oil that gap is flowed out under ring, and pass through the standard counting cup meter profit
The volume of lubricating oil；
Step 4 one is repeated several times in step 4 two, and calculates being averaged for the lubricating oil that gap is flowed out under ring in per minute
Volume S3；
The volume for the interior lubricating oil that gap is flowed out under ring per minute that step 4 three, bearing test require is S4, such as S3With
S4Difference under the ring as defined in testing crew in the range of gap flow of lubrication error, bearing testing machine is flowed down by ring
Amount calibration, otherwise, bearing testing machine is not demarcated by ring down-off.
Specific implementation mode two：Present embodiment is the test parameters to a kind of bearing testing machine described in embodiment one
Scaling method further limits, and the multiple speed of mainshaft given values of input described in step 1 one include：
Step 5 one, in exerciser main shaft rated speed, selection in arithmetic progression five speed of mainshaft given values, from
It is small to being followed successively by N greatly1、N2、N3、N4And N5；
Step 5 two sequentially inputs N1、N2、N3、N4、N5、N4、N3、N2And N1。
Specific implementation mode three：Present embodiment is the test parameters to a kind of bearing testing machine described in embodiment one
Scaling method further limits, and the multiple load given values of input described in step 2 one include：
Step 6 one, in exerciser rated load, selection in arithmetic progression five load given values, from small to large according to
Secondary is M1、M2、M3、M4And M5；
Step 6 two sequentially inputs M1、M2、M3、M4、M5、M4、M3、M2And M1。
Specific implementation mode four：Present embodiment is the test parameters to a kind of bearing testing machine described in embodiment three
Scaling method further limits, and replaces the standard force-measuring instrument of different ranges, and implementation steps 61.
The load calibration of bearing testing machine is wanted due to the loading accuracy requirement of side crops industry to be met when selecting calibrating instrument
Select the standard force-measuring instrument of different ranges.Standard force-measuring instrument is generally divided into small-range (0-10000N) and wide range (is more than
It 10000N) two kinds, need to be using the standard force-measuring instrument of small-range and big such as the rated load ranging from 0-50000N of exerciser
The standard dynamometer table segmenting (i.e. 0-10000N and 10000-50000N) of range carries out load calibration.
Claims (4)
1. a kind of test parameters scaling method of bearing testing machine, which is characterized in that this method includes that rating test device main shaft turns
Speed step, rating test device load the step of and calibration flow of lubrication the step of；
The step of rating test device speed of mainshaft includes：
Multiple rotary speed setting values of step 1 one, entering spindle, and given by the acquisition of rated rotational frequency table and multiple rotating speeds of main shaft
Multiple rotating speed calibration values of the corresponding main shaft of definite value obtain multigroup rotary speed data of main shaft, one group of rotary speed data packet of main shaft
Include a rotary speed setting value of main shaft and its corresponding speed of mainshaft calibration value；
Step 1 two, according to speed of mainshaft error formula：Speed of mainshaft error=(speed of mainshaft calibration value-speed of mainshaft is given
Value)/speed of mainshaft given value, calculate multiple speed errors of the corresponding main shaft of multigroup rotary speed data of main shaft；
Step 1 three, when multiple speed errors of main shaft be respectively less than 0.5% and more than ﹣ 0.5% when, bearing testing machine passes through main shaft
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, the multiple load given values of input, and the standard force-measuring instrument by being connected with loading device acquire with it is multiple
The corresponding multiple load calibration values of load given value, obtain multigroup load data, and one group of load data is given including a load
Definite value and its corresponding load calibration value；
Step 2 two, according to load error formula：Load error=(load calibration value-load given value)/load given value, meter
Calculate the corresponding multiple load errors of multigroup load data；
Step 2 three, when multiple load errors be respectively less than 2% and more than ﹣ 2% when, bearing testing machine is by load calibration, otherwise,
Bearing testing machine does not pass through load calibration；
The step of the step of demarcating flow of lubrication includes the steps that calibration nozzle flow and calibration ring down-off；
Demarcate nozzle flow the step of include：
Step 3 one, in T1In time, the lubricating oil exported by single-nozzle is collected, and pass through the standard counting cup meter lubricating oil
Volume；
Step 3 one is repeated several times in step 3 two, and calculates the average external volume S of single-nozzle interior output lubricating oil per minute1；
Step 3 three, the given flow that the single-nozzle of bearing test requirement is per minute are S2, such as S1With S2Difference by testing
In the range of nozzle flow error as defined in personnel, bearing testing machine is demarcated by nozzle flow, and otherwise, bearing testing machine does not lead to
Cross nozzle flow calibration；
Demarcate ring down-off the step of include：
Step 4 one, in T2In time, the lubricating oil that gap is flowed out under ring, and pass through the standard counting cup meter lubricating oil
Volume；
Step 4 one is repeated several times in step 4 two, and calculates the average external volume for the lubricating oil that gap is flowed out under ring in per minute
S3；
The volume for the interior lubricating oil that gap is flowed out under ring per minute that step 4 three, bearing test require is S4, such as S3With S4's
For difference under the ring as defined in testing crew in the range of gap flow of lubrication error, bearing testing machine passes through ring down-off mark
Fixed, otherwise, bearing testing machine is not demarcated by ring down-off.
2. a kind of test parameters scaling method of bearing testing machine according to claim 1, which is characterized in that step 1 one
Multiple rotary speed setting values of the entering spindle include：
Step 5 one, in exerciser main shaft rated speed, selection in the main shaft of arithmetic progression five rotary speed setting values, from small
To being followed successively by N greatly1、N2、N3、N4And N5；
Step 5 two sequentially inputs N1、N2、N3、N4、N5、N4、N3、N2And N1。
3. a kind of test parameters scaling method of bearing testing machine according to claim 1, which is characterized in that step 2 one
The multiple load given values of the input include：
Step 6 one, in exerciser rated load, selection in arithmetic progression five load given values, be followed successively by from small to large
M1、M2、M3、M4And M5；
Step 6 two sequentially inputs M1、M2、M3、M4、M5、M4、M3、M2And M1。
4. a kind of test parameters scaling method of bearing testing machine according to claim 3, which is characterized in that replace different
The standard force-measuring instrument of range, and implementation steps 61.
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| CN115808310B (en) * | 2023-02-09 | 2023-05-12 | 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 |
| CN115808309B (en) * | 2023-02-09 | 2023-05-30 | 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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