CN109520872A - One kind accelerates fatigue test macro - Google Patents
One kind accelerates fatigue test macro Download PDFInfo
- Publication number
- CN109520872A CN109520872A CN201910002564.1A CN201910002564A CN109520872A CN 109520872 A CN109520872 A CN 109520872A CN 201910002564 A CN201910002564 A CN 201910002564A CN 109520872 A CN109520872 A CN 109520872A
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- Prior art keywords
- supercharging device
- hydraulic power
- fatigue test
- test macro
- power station
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- 238000009661 fatigue test Methods 0.000 title claims abstract description 29
- 238000012360 testing method Methods 0.000 claims abstract description 41
- 238000006073 displacement reaction Methods 0.000 claims abstract description 16
- 238000001514 detection method Methods 0.000 claims abstract description 7
- 230000007613 environmental effect Effects 0.000 claims description 6
- 239000012530 fluid Substances 0.000 abstract description 7
- 238000001802 infusion Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 6
- 206010008469 Chest discomfort Diseases 0.000 abstract description 5
- 230000007812 deficiency Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 38
- 238000001816 cooling Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000010355 oscillation Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
- G01N3/36—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by pneumatic or hydraulic means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L27/00—Testing or calibrating of apparatus for measuring fluid pressure
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0005—Repeated or cyclic
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0073—Fatigue
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0274—Tubular or ring-shaped specimens
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
Accelerate fatigue test macro the embodiment of the invention discloses one kind, comprising: hydraulic power subsystem, including hydraulic power station and servo valve；Pressurization and detection subsystem, including supercharging device and displacement sensor；And medium is pressurized subsystem, including Pneumatic booster pump and tested media case.The present invention is in order to solve the deficiency of conventional pressure sensor class or pipeline class fatigue test, the pressure value of servo techniques is amplified, pass through the control of magnification ratio, achievable 4000bar, the accelerated fatigue test of 15HZ, and fluid infusion is carried out to servoBcylinder high pressure chest using Pneumatic booster pump, solve the problems, such as that pressure in pressure sensor class and pipeline class testing fatigue is low and tested media is single.
Description
Technical field
The present embodiments relate to pressure sensor class or pipeline class fatigue test technology fields, and in particular to a kind of acceleration
Fatigue test system.
Background technique
The prior art will often be accurately controlled sensor or pipeline in pressure sensor class or pipeline class fatigue test
The waveform of pressure medium, peak valley pressure, frequency, traditional method are that output waveform, peak valley pressure are directly controlled using servo valve
Power and frequency；But it is limited by servo valve technology, test pressure is less than 315bar, and test(ing) medium is necessary for hydraulic oil；It can not be right
315bar or more sensor or pipeline do fully loaded fatigue test；It is special to carry out to the sensor or pipeline that special media is applied
The fatigue test of medium.
Summary of the invention
Accelerate fatigue test macro for this purpose, the embodiment of the present invention provides one kind, to solve in the prior art due to servo valve
The problem that test pressure is small caused by technical restriction, test(ing) medium is single.
To achieve the goals above, embodiments of the present invention provide the following technical solutions:
In embodiments of the present invention, one kind is provided to accelerate fatigue test macro, comprising:
Hydraulic power subsystem, including hydraulic power station and servo valve；
Pressurization and detection subsystem, including supercharging device and displacement sensor；And
Medium is pressurized subsystem, including Pneumatic booster pump and tested media case；
Wherein, the hydraulic power station oil outlet is connect by the servo valve with first oil inlet end of supercharging device,
First oil outlet of supercharging device is connect by the servo valve with the hydraulic power station oil inlet end, the supercharging device the
Two oil outlets are connect with the hydraulic power station oil inlet end；The tested media case passes through Pneumatic booster pump and the supercharging device
Second oil inlet end and test specimen connection；Institute's displacement sensors are set in the supercharging device, for detecting supercharging device
Interior piston position.
In one embodiment of the invention, the test macro that accelerates fatigue include: the hydraulic power station oil outlet also
It is connect by pressure reducing valve with the third oil inlet end of the supercharging device.
In another embodiment of the present invention, which further includes the first electromagnetic switch valve.
In yet another embodiment of the present invention, which further includes accumulator, is set to described watch
It takes between valve and hydraulic power station.
In yet another embodiment of the present invention, which further includes temperature sensor, is set to institute
It states in supercharging device.
In yet another embodiment of the present invention, which further includes pressure sensor, is set to institute
It states between supercharging device and test specimen.
In yet another embodiment of the present invention, which further includes check valve, is set to the gas
Between dynamic booster pump and supercharging device.
In yet another embodiment of the present invention, which further includes the second electromagnetic switch valve.
In yet another embodiment of the present invention, which further includes environmental cabinet.
Embodiment according to the present invention, in order to solve the deficiency of conventional pressure sensor class or pipeline class fatigue test,
The pressure value of servo techniques is amplified, by the control of magnification ratio, the fatigue of achievable 4000bar, 15HZ accelerate examination
It tests, and fluid infusion is carried out to servoBcylinder high pressure chest using Pneumatic booster pump, solve pressure sensor class and pipeline class testing fatigue
In pressure is low and problem that tested media is single.
Detailed description of the invention
It, below will be to embodiment party in order to illustrate more clearly of embodiments of the present invention or technical solution in the prior art
Formula or attached drawing needed to be used in the description of the prior art are briefly described.It should be evident that the accompanying drawings in the following description is only
It is merely exemplary, it for those of ordinary skill in the art, without creative efforts, can also basis
The attached drawing of offer, which is extended, obtains other implementation attached drawings.
Fig. 1 is that one kind for providing of one embodiment of the invention accelerates fatigue test principle block diagram；
Fig. 2 is that one kind for providing of another embodiment of the present invention accelerates fatigue test principle block diagram.
In figure: 1- hydraulic power station, 2.1,2.2- accumulator, 3- servo valve, 4- displacement sensor, 5- supercharging device, 6-
Temperature sensor, 7.1,7.2- pressure sensor, the first electromagnetic switch valve of 8-, 9- pressure reducing valve, the second electromagnetic switch valve of 10-, 11-
Check valve, 12- Pneumatic booster pump, 13- tested media case, 14- environmental cabinet.
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book is understood other advantages and efficacy of the present invention easily, it is clear that described embodiment is the present invention one
Section Example, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.
The present invention provides one kind and accelerates fatigue test macro, comprising:
Hydraulic power subsystem, including hydraulic power station 1 and servo valve 3；
Pressurization and detection subsystem, including supercharging device 5 and displacement sensor 4；And
Medium is pressurized subsystem, including Pneumatic booster pump 12 and tested media case 13；
Wherein, 1 oil outlet of hydraulic power station is connect by servo valve 3 with 5 first oil inlet end of supercharging device, supercharging device 5
First oil outlet is connect by servo valve 3 with 1 oil inlet end of hydraulic power station, 5 second oil outlet of supercharging device and hydraulic power station 1
Oil inlet end connection；Tested media case 13 is connect by Pneumatic booster pump 12 with 5 second oil inlet end of supercharging device and test specimen；Position
Displacement sensor 4 is set in supercharging device 5, for detecting the piston position in supercharging device 5.
Preferably, 1 oil outlet of hydraulic power station also passes through pressure reducing valve 9 and connect with the third oil inlet end of supercharging device 5；Also wrap
The first electromagnetic switch valve 8 is included, for controlling pressure reducing valve；Further include accumulator (2.1,2.2), is set to servo valve 3 and hydraulic dynamic
Between power station 1, to reduce influence of the pressure oscillation to test；Further include temperature sensor 6, is set in supercharging device 5, is used for
Detect the temperature in supercharging device；Further include pressure sensor (7.1,7.2), is set between supercharging device 5 and test specimen；
Further include check valve 11, be set between Pneumatic booster pump 12 and supercharging device 5, can only increase from pneumatic for limiting fuel-displaced direction
Press pump is flowed toward supercharging device direction；It further include the second electromagnetic switch valve 10, for controlling Pneumatic booster pump；It further include environmental cabinet
14, for simulating the practical service environment of test specimen.
Accelerate fatigue test macro as shown in Figure 1, one embodiment of the invention provides one kind, comprising:
Hydraulic power subsystem, including hydraulic power station 1 and servo valve 3；
Pressurization and detection subsystem, including supercharging device 5 and displacement sensor 4；And
Medium is pressurized subsystem, including Pneumatic booster pump 12 and tested media case 13；
Wherein, 1 oil outlet of hydraulic power station is connect by servo valve 3 with 5 first oil inlet end of supercharging device, supercharging device 5
First oil outlet is connect by servo valve 3 with 1 oil inlet end of hydraulic power station, 5 second oil outlet of supercharging device and hydraulic power station 1
Oil inlet end connection；Tested media case 13 is connect by Pneumatic booster pump 12 with 5 second oil inlet end of supercharging device and test specimen；Position
Displacement sensor 4 is set in supercharging device 5, for detecting the piston position in supercharging device 5.
As shown in Fig. 2, accelerating fatigue test macro another embodiment of the present invention provides one kind, comprising:
Hydraulic power subsystem, including hydraulic power station 1, servo valve 3, accumulator (2.1 and 2.2), pressure reducing valve 9 and first
Electromagnetic switch valve 8；
Pressurization and detection subsystem, including supercharging device 5, displacement sensor 4, temperature sensor 6 and pressure sensor
(7.1 and 7.2)；And
Medium is pressurized subsystem, including Pneumatic booster pump 12, tested media case 13, check valve 11 and the second electromagnetic switch valve
10；
Wherein, 1 oil outlet of hydraulic power station is connect by servo valve 3 with 5 first oil inlet end of supercharging device, supercharging device 5
First oil outlet is connect by servo valve 3 with 1 oil inlet end of hydraulic power station, and accumulator (2.1 and 2.2) is set to 3 He of servo valve
Between hydraulic power station 1, to reduce influence of the pressure oscillation to test；5 second oil outlet of supercharging device and hydraulic power station 1 into
Oily end connection；Tested media case 13 is by Pneumatic booster pump 12 and check valve 11 and 5 second oil inlet end of supercharging device and is tested
Part connection；Displacement sensor 4 is set in supercharging device 5, for detecting the piston position in supercharging device 5；Temperature sensor 6
It is set in supercharging device 5, for detecting the temperature in supercharging device 5；Pressure sensor (7.1 and 7.2) is set to pressurization dress
It sets between 5 and test specimen；Check valve 11 can only be flowed for limiting fuel-displaced direction from Pneumatic booster pump 12 toward 5 direction of supercharging device
It is dynamic.
1 oil outlet of hydraulic power station also passes through the third oil inlet of pressure reducing valve 9 and the first electromagnetic switch valve 8 and supercharging device 5
End connection；Second electromagnetic switch valve 10 is for controlling Pneumatic booster pump 12；It further include environmental cabinet 14, for simulating test specimen
Practical service environment.
The present invention amplifies the pressure value of mature servo techniques, achievable by the control of magnification ratio
The accelerated fatigue test of 4000bar, 15HZ；Lower friction temperature between servo the cylinder piston and cylinder barrel is acted in order to solve high voltagehigh frequency
Excessively high problem devises the double-deck cylinder barrel technology with cooling device, by electromagnetic switch valve and pressure reducing valve by servo valve oil inlet
Divide a branch to introduce cooling assembling device, flows back to fuel tank with servo valve oil return opening to after the cooling of servoBcylinder high pressure section；The present invention
Testboard to be related to servoBcylinder completely separable by servo valve working chamber and high pressure chest, high-pressure side cylinder body selects S316L stainless steel
Matter is suitable for any test(ing) medium (water, acid or other corrosive medias).
The problem of present invention by test specimen leakage when relieving fatigue test in order to cause test to be interrupted, using gas-liquid booster pump pair
ServoBcylinder high pressure chest carries out fluid infusion, and program setting is more than 90% (can set) when servo-cylinder displacement, automatically turns on gas-liquid booster pump
Fluid infusion is carried out to servoBcylinder high pressure chest, because fatigue test pressure is always high low switching, when pressure is defeated lower than gas-liquid booster pump
Out when pressure, servo the cylinder piston toward pushing back, can be pushed into 40% (can set) stopping.
Working principle of the embodiment of the present invention is as follows:
Hydraulic power station output pressure and flow, control software by servo valve, displacement sensor, temperature sensor and
Output controls Curve, peak valley pressure and the frequency of pulsating detection to servo valve after the signal acquisition of pressure sensor, processing
Rate, accumulator can effectively reduce influence of the pressure oscillation to test.
Because under high-frequency and high-voltage, supercharging device high-voltage end temperature can rise quickly, the present invention will by the first electromagnetic switch valve
The low temperature oil a-road-through of hydraulic power station crosses the laggard horizontal high voltage end cooling bath of pressure reducing valve, cools down to high-voltage end, flows through high-voltage end
High temperature oil be back to hydraulic power station together with T mouthfuls of oil return pipes；Temperature sensor extremely controls the temperature value real-time Transmission of high-voltage end
Software processed will call the police prompt when high-voltage end temperature is more than 100 DEG C (can set), (can set when high-voltage end temperature is more than 150 DEG C
It is fixed) when, by automatic shutdown protection supercharging device；
Testing fatigue medium of the invention is individually mounted in tested media case, before testing fatigue, in order to eliminate pipeline
And influence of the air to test in workpiece, it needs first to carry out preliminary filling exhaust, process is as follows: tested media is defeated by gas booster pump
Out, it send through check valve to workpiece, the air in pipeline and test specimen can be discharged with medium, will after the completion of preliminary filling exhaust
Carry out testing fatigue.
Testing fatigue lasts longer (then one week short, some months when long), and piston position in supercharging device is tried with fatigue
That tests deviate for past high-voltage end slowly, and when deviation value is more than certain value, testing fatigue will be forced to stop, in this way can be significantly
Reduce testing efficiency.In order to solve this problem, the present invention works as piston position by displacement sensor real-time detection piston position
More than 90% (can set), automatically turns on 12 Pneumatic booster pumps and fluid infusion is carried out to supercharging device high-voltage tube；Testing fatigue pressure one
Fluctuation status can be directly handled, when testing pressure higher than gas boosting pump output pressure, closed check valve, not fluid infusion at this time, when
When testing pressure lower than gas boosting pump output pressure, check valve is opened, and carries out fluid infusion, and piston can be pushed away slowly down, works as work
When filling in position arrival 40% (can set), 12 Pneumatic booster pumps are automatically closed, continue to test.
Testing fatigue is very big to the performance test of workpiece, and underproof workpiece does not reach in testing fatigue requires the testing time
When can leak, in the case where workpiece leakage failure, it is too fast and stop automatically that control software can detect that supercharging device displacement rises
Machine protects equipment safety；Environmental cabinet is set for simulation workpiece practical service environment temperature.
Although above having used general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements without departing from theon the basis of the spirit of the present invention are fallen within the scope of the claimed invention.
Claims (9)
- The test macro 1. one kind accelerates fatigue characterized by comprisingHydraulic power subsystem, including hydraulic power station (1) and servo valve (3)；Pressurization and detection subsystem, including supercharging device (5) and displacement sensor (4)；AndMedium is pressurized subsystem, including Pneumatic booster pump (12) and tested media case (13)；Wherein, hydraulic power station (1) oil outlet passes through the servo valve (3) and (5) first oil inlet end of supercharging device Connection, (5) first oil outlet of supercharging device are connect by the servo valve (3) with the hydraulic power station (1) oil inlet end, (5) second oil outlet of supercharging device is connect with the hydraulic power station (1) oil inlet end；The tested media case (13) passes through Pneumatic booster pump (12) is connect with (5) second oil inlet end of supercharging device and test specimen；Institute's displacement sensors (4) setting In the supercharging device (5), for detecting the piston position in supercharging device (5).
- 2. accelerate fatigue test macro as described in claim 1, it is characterised in that: hydraulic power station (1) oil outlet is also It is connect by pressure reducing valve (9) with the third oil inlet end of the supercharging device (5).
- 3. accelerate fatigue test macro as claimed in claim 2, it is characterised in that: further include the first electromagnetic switch valve (8).
- 4. accelerate fatigue test macro as described in claim 1, it is characterised in that: it further include accumulator (2.1,2.2), setting Between the servo valve (3) and hydraulic power station (1).
- 5. accelerate fatigue test macro as described in claim 1, it is characterised in that: further include temperature sensor (6), be set to In the supercharging device (5).
- 6. accelerate fatigue test macro as described in claim 1, it is characterised in that: it further include pressure sensor (7.1,7.2), It is set between the supercharging device (5) and test specimen.
- 7. accelerate fatigue test macro as described in claim 1, it is characterised in that: further include check valve (11), be set to institute It states between Pneumatic booster pump (12) and supercharging device (5).
- 8. accelerate fatigue test macro as described in claim 1, it is characterised in that: further include the second electromagnetic switch valve (10).
- 9. accelerate fatigue test macro as described in claim 1, it is characterised in that: further include environmental cabinet (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910002564.1A CN109520872A (en) | 2019-01-02 | 2019-01-02 | One kind accelerates fatigue test macro |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910002564.1A CN109520872A (en) | 2019-01-02 | 2019-01-02 | One kind accelerates fatigue test macro |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109520872A true CN109520872A (en) | 2019-03-26 |
Family
ID=65798862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910002564.1A Pending CN109520872A (en) | 2019-01-02 | 2019-01-02 | One kind accelerates fatigue test macro |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114046297A (en) * | 2022-01-11 | 2022-02-15 | 成都飞机工业（集团）有限责任公司 | Bidirectional servo control hydraulic pressure boosting type water hammer generator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114046297A (en) * | 2022-01-11 | 2022-02-15 | 成都飞机工业（集团）有限责任公司 | Bidirectional servo control hydraulic pressure boosting type water hammer generator |
| CN114046297B (en) * | 2022-01-11 | 2022-05-10 | 成都飞机工业（集团）有限责任公司 | Bidirectional servo control hydraulic pressure pressurization type water hammer generator |
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