CN107687950A - A kind of convenient detection method and device of load sensor dynamic property - Google Patents
A kind of convenient detection method and device of load sensor dynamic property Download PDFInfo
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- CN107687950A CN107687950A CN201710944524.XA CN201710944524A CN107687950A CN 107687950 A CN107687950 A CN 107687950A CN 201710944524 A CN201710944524 A CN 201710944524A CN 107687950 A CN107687950 A CN 107687950A
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- 238000001514 detection method Methods 0.000 title claims abstract description 39
- 238000012937 correction Methods 0.000 claims abstract description 26
- 230000003068 static effect Effects 0.000 claims abstract description 11
- 238000012360 testing method Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
Classifications
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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
- G01M15/00—Testing of engines
- G01M15/02—Details or accessories of testing apparatus
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Engines (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention discloses a kind of convenient detection method of load sensor dynamic property, including a dynamometer is set to be connected with engine, it is further comprising the steps of：Step 1, load onto correction arm, brake arm respectively in the both sides of dynamometer, and be connected with the force measuring machine for the load for detecting dynamometer in the outer end of correction arm and hang a scale pan on arm is corrected；Step 2, static shift correction is carried out to force measuring machine under an engine stop condition, the counterweight of different weight is first added on scale pan, adjustment force measuring machine makes its load value corresponding with each counterweight weight；Step 3, start engine at the uniform velocity operate, toward scale pan on addition different weight counterweight, the difference of the difference of the load value on adjacent force measuring machine twice and adjacent counterweight value twice is compared.The invention also discloses a kind of easy detection means of load sensor dynamic property.Quick, the easy detection load sensor dynamic property of the energy of the present invention.
Description
Technical field
The present invention relates to engine detection field, more specifically, it relates to a kind of letter of load sensor dynamic property
Just detection method and device.
Background technology
At present, in the engine thermal running-in test process of engine manufacturing field, waterpower power-measuring system is widely used, and is born
Lotus sensor is mounted in the important detection part on hydraulic dynamometer.Dynamometer using static shift correction as foundation, though sometimes
Static check is very accurate, and the data deviation that can be detected in engine thermal running-in test is larger, but can be without what method
Production scene detection judgement is caused by load sensor bad dynamic performance or caused by intermediate transmission link power attenuation.
The content of the invention
The technical problem to be solved in the present invention is the above-mentioned deficiency for prior art, and the purpose of the present invention one is to provide one
Kind can implement in production scene, and can quickly, the convenient detection method of the load sensor dynamic property of simplicity judgement.
The purpose of the present invention two is to provide a kind of easy detection means of load sensor dynamic property.
To achieve the above object one, the invention provides a kind of convenient detection method of load sensor dynamic property, bag
Include and set a dynamometer to be connected with engine, it is further comprising the steps of：Step 1, correction is loaded onto respectively in the both sides of dynamometer
Arm, brake arm, and be connected with the force measuring machine for the load for detecting dynamometer in the outer end of correction arm and hang one on arm is corrected
Scale pan；Step 2, static shift correction is carried out to force measuring machine under an engine stop condition, is first added on scale pan different heavy
The counterweight of amount, adjustment force measuring machine make its load value corresponding with each counterweight weight；Step 3, start engine and at the uniform velocity operate,
The counterweight of different weight is added on toward scale pan, by the difference of the load value on adjacent force measuring machine twice and adjacent weight twice
The difference of code value compares, and judges the dynamic property of the pull pressure sensor in force measuring machine force measuring machine.
Further, when static shift correction is carried out in the step 2, the weight that counterweight is first added on scale pan is zero, will
The reading zeroing of force measuring machine；Then, 80% standard test weight of range weight is filled it up with scale pan, makes the reading of force measuring machine
Number is corresponding with added counterweight weight；Finally, again toward first gradually add on scale pan, after gradually decrease counterweight, observe counterweight
It is linear whether the counterweight value on disk corresponds to point by point with the load value of force measuring machine.
Further, after engine at the uniform velocity starts in the step 3, first, force measuring machine is made without counterweight on scale pan
Measure the dynamometer load value one suffered in zero load；Then, scale pan fills it up with the % of range weight counterweight, obtains load
Value two, by counterweight value plus the dynamic after load value one with the pull pressure sensor of load value two-phase multilevel iudge force measuring machine
Energy.
Further, the rotating speed of engine is its rated engine speed in the step 3, and dynamometer is idling conditions.
To achieve the above object two, the invention provides a kind of easy detection means of load sensor dynamic property, bag
The dynamometer being connected with engine is included, brake arm, correction arm are separately installed with the both sides of the dynamometer, the brake arm
Outer end is provided with the force measuring machine of detection correction arm deflection, and a scale pan is hung with the correction arm.
Further, described force measuring machine includes base, is vertically arranged with the base and the brake arm
The pull pressure sensor of outer end connection, the both ends of the pull pressure sensor are provided with to be hinged with the brake arm, base respectively
Slip-knot bolt；Described force measuring machine also includes the display device being connected with the pull pressure sensor.
Beneficial effect
Compared with prior art, the beneficial effect of the convenient detection method of load sensor dynamic property of the invention is such as
Under：The convenient detection method of the load sensor dynamic property of the present invention, can implement in production scene, pass through production scene condition
Simulation dynamic environment fast and convenient can judge that overcoming in prior art use does not have method to judge that load passes in production scene detection
Whether the dynamic property of sensor is deteriorated, and avoids and directly changes the uncertain cost that can be solved problem and cause time and part
Loss, time and the labor strength for pulling down censorship are saved, improve operating efficiency.
Brief description of the drawings
Fig. 1 is the structural representation of the easy detection means of the load sensor dynamic property of the present invention；
Fig. 2 is the schematic enlarged-scale view of force measuring machine in the present invention.
In figure：1st, dynamometer；2nd, arm is corrected；3rd, force measuring machine；4th, scale pan；5th, pull pressure sensor；6th, base；7th, it is living
Tie bolt；8th, brake arm；9th, counterweight.
Embodiment
Below in conjunction with the accompanying drawings, the embodiment of the present invention is described in detail, it is to be understood that the guarantor of the present invention
Shield scope is not limited by embodiment.
The embodiment of the present invention is such：As shown in Figure 1-2, a kind of simplicity of load sensor dynamic property
Detection method, including set a dynamometer 1 to be connected with engine, it is further comprising the steps of：Step 1, in the both sides of dynamometer 1
Correction arm 2, brake arm 8 are loaded onto respectively, and are connected with the He of force measuring machine 3 for the load for detecting dynamometer 1 in the outer end of correction arm 2
A scale pan 4 is hung on correction arm 2；Step 2, static shift correction is carried out to force measuring machine 3 under an engine stop condition, first
The counterweight 9 of different weight is added on scale pan 4, adjustment force measuring machine 3 makes its load value corresponding with each weight of counterweight 9, right
Force measuring machine 3 carries out static correction, including zeroing detection and the detection of each measurement data, preliminary to confirm force measuring machine 3 in static state
In the case of, accuracy of reading, service condition is good；Step 3, start engine at the uniform velocity operate, toward scale pan 4 on add it is different heavy
The counterweight 9 of amount, the difference that the difference of the load value on adjacent force measuring machine 3 twice and adjacent counterweight 9 twice are worth is compared, sentenced
The dynamic property of pull pressure sensor 5 in the disconnected force measuring machine 3 of force measuring machine 3, the load value on adjacent force measuring machine 3 twice
Difference and the difference of the adjacent value of counterweight 9 twice compare, if deviation is excessive, need to change pull pressure sensor 5 or maintenance
Measuring mechanism, if deviation in tolerance band, can be continuing with, carry out Engine dynamometer tests；This load sensor moves
The convenient detection method of state property energy can detect at measurement of power scene to force measuring machine 3, be moved by production scene condition simulation
State environment fast and convenient can judge that overcoming in prior art use, which does not have method to be detected in production scene, judges pull pressure sensor
Whether 5 dynamic property is deteriorated, avoid directly change it is uncertain can solve problem and cause the cost of time and part damage
Lose, save time and the labor strength for pulling down censorship, improve operating efficiency.
In the present embodiment, when static shift correction is carried out in step 2, the weight that counterweight 9 is first added on scale pan 4 is zero,
The reading of force measuring machine 3 is returned to zero；Then, 80% standard test weight 9 of range weight is filled it up with scale pan 4, makes force measuring machine
The reading of structure 3 is corresponding with the added weight of counterweight 9, by twice plus counterweight 9 can carry out preliminary adjustment to force measuring machine 3, one
Secondary property is added to 80% counterweight 9 of full scale weight, can detect force measuring machine 3 in upper limited load, the accuracy of detection,
Quickly obtain the whether qualified conclusion of force measuring machine 3；Finally, again toward first gradually add on scale pan 4, after gradually decrease counterweight
9, observe whether the value of the counterweight 9 on scale pan 4 corresponds to linear point by point with the load value of force measuring machine 3, judge force measuring machine
For structure 3 in different load values, whether detection data are accurate, and adjustment, easy to detect, operation are further carried out to force measuring machine 3
Simply, detection speed is fast, and operating efficiency is high, it is ensured that force measuring machine 3 under quiescent conditions whether can steady operation, in next step
Dynamic property detection prepare.
In the present embodiment, after engine at the uniform velocity starts in step 3, first, force measuring machine is made without counterweight 9 on scale pan 4
3 measure the load value one suffered in zero load of dynamometer 1, without adding counterweight 9 in scale pan 4, reduce process, reduce work
The labor intensity of personnel, can also detect dynamometer 1 it is unloaded when the air drag that runs into；Then, scale pan 4 fills it up with range weight
80% counterweight 9, obtain load value two, by counterweight 9 be worth plus after load value one with load value two-phase multilevel iudge force measuring machine
The dynamic property of the pull pressure sensor 5 of structure 3, directly detect the accurate of measurement data of force measuring machine when close to higher limit
Property, if the presence relatively large deviation of measurement data of force measuring machine when close to higher limit, other weight counterweights 9 need not be carried out
Detection, quickly obtain the whether qualified conclusion of force measuring machine 3, easy to detect, detection speed is quick, and operating efficiency is high.
In the present embodiment, the rotating speed of engine is its rated engine speed in step 3, and dynamometer 1 is idling conditions,
Under rated engine speed (i.e. rotating speed is 2000rpm/min), the rotating speed of engine is easy to control, operates steadily, and fluctuation is few so that inspection
It is small to survey the error of measured data of sensor dynamic property, reduces erroneous judgement probability.
In the present embodiment, a kind of device for the convenient detection method for realizing load sensor dynamic property, including with hair
The dynamometer 1 of motivation connection, brake arm 8, correction arm 2 are separately installed with the both sides of dynamometer 1, the outer end of brake arm 8 is provided with
The force measuring machine 3 of the detection correction deflection of arm 2, corrects and is hung with a scale pan 4 on arm 2, can be changed at dynamometer test scene
Dress, reequip simple in construction, easy disassembling.
In the present embodiment, force measuring machine 3 includes base 6, is vertically arranged with base 6 and connects with the outer end of brake arm 8
The pull pressure sensor 5 connect, the both ends of pull pressure sensor 5 are provided with slip-knot bolt 7 be hinged with brake arm 8, base 6 respectively；
Force measuring machine 3 also includes the display device being connected with pull pressure sensor 5, be hinged by slip-knot bolt 7, ensures pressure sensing
The accurate installation of device 5, ensure that the Impact direction of both ends pull pressure sensor 5 is correct, improve the accuracy of detection of pull pressure sensor 5.
It the above is only the preferred embodiment of the present invention, it should be pointed out that for those skilled in the art, do not taking off
On the premise of from structure of the present invention, several modifications and improvements can also be made, these effects implemented all without the influence present invention
And practical applicability.
Claims (6)
1. a kind of convenient detection method of load sensor dynamic property, including set a dynamometer (1) to be connected with engine, its
It is characterised by, it is further comprising the steps of：Step 1, correction arm (2), brake arm (8) are loaded onto respectively in the both sides of dynamometer (1),
And the force measuring machine (3) of the load of detection dynamometer (1) is connected with the outer end of correction arm (2) and is hung on correction arm (2)
One scale pan (4)；Step 2, static shift correction is carried out to force measuring machine (3) under an engine stop condition, first in scale pan (4)
The counterweight (9) of upper addition different weight, adjustment force measuring machine (3) make its load value corresponding with each counterweight (9) weight；Step
Three, start engine at the uniform velocity operate, toward scale pan (4) on addition different weight counterweight (9), by adjacent force measuring machine twice
(3) compared with the difference of the difference of the load value on and adjacent counterweight (9) value twice, judge in force measuring machine (3) force measuring machine (3)
Pull pressure sensor (5) dynamic property.
2. the convenient detection method of a kind of load sensor dynamic property according to claim 1, it is characterised in that described
When static shift correction is carried out in step 2, the weight that counterweight (9) is first added on scale pan (4) is zero, by the reading of force measuring machine (3)
Number zeroing；Then, 80% standard test weight (9) of range weight is filled it up with scale pan (4), makes the reading of force measuring machine (3)
It is corresponding with added counterweight (9) weight；Finally, again toward first gradually add on scale pan (4), after gradually decrease counterweight (9), see
Examine counterweight (9) value on scale pan (4) whether corresponded to point by point with the load value of force measuring machine (3) it is linear.
A kind of 3. convenient detection method of load sensor dynamic property according to claim 1 or 2, it is characterised in that
After engine at the uniform velocity starts in the step 3, first, force measuring machine (3) is set to measure dynamometer without counterweight (9) on scale pan (4)
(1) load value one suffered in zero load；Then, scale pan (4) fills it up with 80% counterweight (9) of range weight, is born
Charge values two, by counterweight (9) value plus the pull pressure sensor after load value one with load value two-phase multilevel iudge force measuring machine (3)
(5) dynamic property.
4. the convenient detection method of a kind of load sensor dynamic property according to claim 3, it is characterised in that described
The rotating speed of engine is its rated engine speed in step 3, and dynamometer (1) is idling conditions.
5. a kind of device for the convenient detection method for realizing load sensor dynamic property according to claim 1, it is special
Sign is, including the dynamometer (1) being connected with engine, be separately installed with the both sides of the dynamometer (1) brake arm (8),
Arm (2) is corrected, the outer end of the brake arm (8) is provided with the force measuring machine (3) of detection correction arm (2) deflection, the correction arm
(2) scale pan (4) is hung with.
6. the easy detection means of a kind of load sensor dynamic property according to claim 5, it is characterised in that described
Force measuring machine (3) include base (6), be vertically arranged with what is be connected with the outer end of the brake arm (8) on the base (6)
Pull pressure sensor (5), the both ends of the pull pressure sensor (5) are provided with to be hinged with the brake arm (8), base (6) respectively
Slip-knot bolt (7)；Described force measuring machine (3) also includes the display device being connected with the pull pressure sensor (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710944524.XA CN107687950A (en) | 2017-09-30 | 2017-09-30 | A kind of convenient detection method and device of load sensor dynamic property |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710944524.XA CN107687950A (en) | 2017-09-30 | 2017-09-30 | A kind of convenient detection method and device of load sensor dynamic property |
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| CN107687950A true CN107687950A (en) | 2018-02-13 |
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| CN201710944524.XA Pending CN107687950A (en) | 2017-09-30 | 2017-09-30 | A kind of convenient detection method and device of load sensor dynamic property |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111583064A (en) * | 2020-05-11 | 2020-08-25 | 国网四川省电力公司电力科学研究院 | Load production time interval detection method based on dynamic time warping and storage medium |
| CN112450924A (en) * | 2020-08-24 | 2021-03-09 | 杭州微策生物技术股份有限公司 | Vortex detection device |
| CN113532780A (en) * | 2021-08-26 | 2021-10-22 | 青岛科技大学 | Loose joint screw type quick combination square quality system with guide device |
| CN113701972A (en) * | 2021-08-26 | 2021-11-26 | 青岛科技大学 | Slipknot screw type rapid combination circular quality system with guide rod |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111583064A (en) * | 2020-05-11 | 2020-08-25 | 国网四川省电力公司电力科学研究院 | Load production time interval detection method based on dynamic time warping and storage medium |
| CN111583064B (en) * | 2020-05-11 | 2022-09-09 | 国网四川省电力公司电力科学研究院 | Load production time interval detection method based on dynamic time warping and storage medium |
| CN112450924A (en) * | 2020-08-24 | 2021-03-09 | 杭州微策生物技术股份有限公司 | Vortex detection device |
| CN112450924B (en) * | 2020-08-24 | 2023-06-23 | 杭州微策生物技术股份有限公司 | Vortex detection device |
| CN113532780A (en) * | 2021-08-26 | 2021-10-22 | 青岛科技大学 | Loose joint screw type quick combination square quality system with guide device |
| CN113701972A (en) * | 2021-08-26 | 2021-11-26 | 青岛科技大学 | Slipknot screw type rapid combination circular quality system with guide rod |
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Application publication date: 20180213 |