CN109444029A - A kind of fatigue test environment simulator - Google Patents
A kind of fatigue test environment simulator Download PDFInfo
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- CN109444029A CN109444029A CN201811157142.3A CN201811157142A CN109444029A CN 109444029 A CN109444029 A CN 109444029A CN 201811157142 A CN201811157142 A CN 201811157142A CN 109444029 A CN109444029 A CN 109444029A
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- 238000009661 fatigue test Methods 0.000 title claims abstract description 46
- 238000012856 packing Methods 0.000 claims abstract description 43
- 239000004744 fabric Substances 0.000 claims abstract description 42
- 239000000463 material Substances 0.000 claims abstract description 15
- 238000005086 pumping Methods 0.000 claims description 27
- 239000007788 liquid Substances 0.000 claims description 20
- 238000003860 storage Methods 0.000 claims description 11
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 10
- 230000007613 environmental effect Effects 0.000 claims description 9
- 238000012544 monitoring process Methods 0.000 claims description 8
- 238000004088 simulation Methods 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000000741 silica gel Substances 0.000 claims description 4
- 229910002027 silica gel Inorganic materials 0.000 claims description 4
- 238000012360 testing method Methods 0.000 abstract description 30
- 238000007789 sealing Methods 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 7
- 238000000926 separation method Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 51
- 238000004458 analytical method Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 230000009972 noncorrosive effect Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 125000004122 cyclic group Chemical group 0.000 description 2
- 239000002283 diesel fuel Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000003534 oscillatory effect Effects 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 125000002619 bicyclic group Chemical group 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000002050 diffraction method Methods 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000877 morphologic effect Effects 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000011020 pilot scale process Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005211 surface analysis Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/002—Test chambers
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
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Abstract
Fatigue test environment simulator provided by the invention, including cabinet, cabinet are connected with environment simulator；It is provided with sample on cabinet and protrudes into mouth, sample or connects the loudspeaker of sample and sample protrudes into the inner wall of mouth there are gaps.Sample stretches the packing cloth that inlet is provided with annular；The lower end connection sample of packing cloth protrudes into mouth, and the upper end of packing cloth and sample top or the loudspeaker for connecting sample are connected, and packing cloth, which is used to seal sample, protrudes into the gap between mouth and sample or loudspeaker.Fatigue test environment simulator provided by the invention, the sealing sample of the packing cloth made of flexible material protrudes into the gap between mouth and sample or loudspeaker, preferable sealing effect can be played, the intracorporal simulated environment of case and extraneous separation are made, prevents the intracorporal simulated environment of case and the external world from taking a breath；And packing cloth can be deformed with the vibration of sample or loudspeaker, be will not influence the vibration of sample or loudspeaker, do not influenced test result.
Description
Technical field
The present invention relates to a kind of environment simulators, and in particular to one kind is applied to fatigue tester, can be to proving ring
The fatigue test environment simulator that border is effectively simulated.
Background technique
Fatigue rupture is one of the main failure forms of modern project component, the especially fatigue fracture of high-strength material,
High-strength material is for a long time under alternate load effect, fatigue fracture often very unexpected generation, and then is easy to cause great
Catastrophic failure.Meanwhile the failure cause of many engineering components is not only the engineering component failure as caused by fatigue rupture
Often a variety of environmental factors such as temperature, humidity, corrosive environment and the coefficient result of fatigue rupture.Currently on the market
Occur capable of simulating high/low temperature, different humidity, different corrosive environment mechanical test case, but in fatigue test, sample needs one
End is fixed on loudspeaker, and the other end is hanging, and sample is with horn vibration.In the prior art, due to the fatigue test process of oscillatory type
Middle sample and loudspeaker constantly vibrate, and the gap that sample protrudes between mouth and sample or loudspeaker is difficult to seal, and oscillatory type is tired
The labor test period is long, which will cause air and outside air ventilation for a long time in environment simulator, and then influence ring
The accuracy of border control, influences test result.When sample protrude into the gap between mouth and sample or loudspeaker by gasket it is inadequate
After sealing, gasket will affect the vibration of sample or loudspeaker, and then influence test result.
In mechanical equipment development, the nineties are low to the service life of mechanical equipment and intensity requirement, and common engineering component makes
With metal materials such as mild steel, engineering component is usually to be lower than 107It is designed under the fatigue data of cycle circulation, when component passes through
Cross 107When cycle circulation is without destroying, just think that it is no longer broken.With the progress of industrial technology, space flight, automobile, machine
Fatigue life of the fields such as tool to partial component, more stringent requirements are proposed, and actual needs reaches 108More than cycle, sometimes even
Want 1011Cycle.Existing plain fatigue testing machine, upper frequency limit are generally 50Hz, test 109Cycle cyclic test needs 230
It, and Ultrasonic Fatigue Test-Bed can quickly be tested the fatigue life of metal material with the repetition rate of 20KHz, same 109Cycle
Cyclic test is also required to 14h.It is extremely grown it can be seen from the above, testing fatigue test expends the time.
The fracture of fatigue testing specimen is a pair of plane of disruption being mutually matched, and section typically occurs in most weak in metal structure
Place records forming core in relation in fracture whole process including crackle and extension and environmental factor to the shadow of fracture process
The useful informations such as sound.By the morphological analysis to fracture, fracture cause, breaking property, fracture mode, fracture machine can be studied
System, fracture toughness, the stress state of fracture process and crack growth rate etc..Really according to fatigue testing specimen fracture crack source
Recognize, can effective fatigue analysis sample failure cause.Corrosive environment acts on presence or the manufacturing deficiency of lower surface etch pit
Etc. will cause surface fracture, field trash, casting hole etc. often become underbead crack source in material structure.It is studied deeper into ground
Influence of the metallurgy factor of environmental factor and material to fracture process needs further to carry out micro-area composition point to fracture surface
Analysis, main body analysis, crystallography analysis and analysis of stress and strain of fracture etc..Fracture analysis be to engineering material and structure into
The important means of row failure analysis, therefore fracture protect significant.
It can be seen from the above content that tested by plain fatigue testing machine, the test period is very long, tester without
Method guarantee waits off-test near fatigue tester at any time.And because sample resonance and compressor operation during test
The noise of generation, experimenter can not constantly observe sample, once sample fracture, experimenter is also difficult to know.Examination
After sample fracture, lower partial cuts are fallen be easy to cause physical damnification on testing stand, and especially the fracture to formation of crack on surface has
Very big influence；If not taking out fracture for a long time, fracture is easily modeled moisture, etchant gas corrosion or height in environmental cabinet
Temperature oxidation, influences subsequent to analyze fatigue testing specimen fracture.In addition it is noted that being tried even with ultrasonic wave fatigue
The machine of testing is tested, and the test period relative to the experiment of other mechanical tests is also longer.
The existing fatigue test device for capableing of simulation test environment, there is the following two kinds:
The Chinese invention patent of Patent No. CN201510995499.9 discloses a kind of low temperature ultrasonic vibrating fatigue experiment
System, the convection fan for being set to cryogenic box bottom can not only damage the fracture of the lower sample after falling, and
Easily cause safety accident.
The Chinese invention patent of Patent No. CN201621476800.1 discloses bicyclic border fatigue tester, can be simultaneously
Carry out high/low temperature test and salt spray test, using such simulated environment case although available material fatigue life with
Relation data between stress condition, environmental factor, but sample can generate fracture after falling and inevitably destroy, and influence
Failure analysis of the later period to sample.
Such as the above two fatigue test device for capableing of simulation test environment, fracture can not be effectively protected,
And since loudspeaker and sample are vibrated in test, effective sealing of simulated environment case cannot achieve.
Summary of the invention
The environment simulator that fatigue tester is worn in the prior art has following problems: due to fatigue test process pilot scale
Sample and loudspeaker constantly vibrate, and the gap that sample protrudes between mouth and sample or loudspeaker is difficult to seal, when blow-by, in simulation box
Air and outside air take a breath for a long time, the accuracy of environmental Kuznets Curves is low；After being sealed reluctantly by gasket, gasket influences
The vibration of sample or loudspeaker, and then influence test result.To solve the above-mentioned problems, the present invention provides a kind of simple and convenient, real
With effective fatigue test environment simulator, the vibration of sample and loudspeaker is not influenced, while can also effectively be sealed sample and be stretched
Gap between entrance and sample or loudspeaker.
Fatigue test environment simulator provided by the invention, including cabinet, above-mentioned cabinet are connected with environment simulator,
Environment simulator is for simulating the environment such as low temperature, high temperature, etchant gas atmosphere.Sample, which is provided with, on above-mentioned cabinet protrudes into mouth,
Sample protrudes into mouth through sample and can extend into cabinet, said sample or connect the loudspeaker of sample and sample protrude into the inner wall of mouth there are
Gap, guarantee sample or the loudspeaker for connecting sample will not touch sample in vibration and protrude into a mouthful inner wall.Said sample stretches inlet
It is provided with the packing cloth of annular, above-mentioned packing cloth is fabricated from a flexible material；The lower end connection sample of above-mentioned packing cloth protrudes into
Mouthful, the upper end of above-mentioned packing cloth and sample top or the loudspeaker for connecting sample are connected, and packing cloth, which is used to seal sample, protrudes into mouth
Gap between sample or loudspeaker.
Preferably, above-mentioned inlet of stretching is provided with the connection short tube upwardly extended, and the lower end cap of packing cloth is in connection short tube
On, and be tightly connected by clip with short tube is connect；The upper end cap of above-mentioned packing cloth is in sample top or the loudspeaker of connection sample
On, and pass through clip be tightly connected；Above-mentioned packing cloth is made of silica gel.Above-mentioned packing cloth by clip with connect short tube
It is connected, is connected by clip with sample or loudspeaker, connection type is simple and reliable, and quick detachable.And it is close made of silica gel
Feng Bu can play preferable sealing effect；And it is flexible, it can be with loudspeaker or sample vibration deformation.
Preferably, it is provided with observation window on the cabinet, is sealed and installed with transparent panel on the observation window.The transparent panel
It can be glass plate or transparent plastic sheet etc., tester can observe whether sample is broken by observation window.
Preferably, environment simulator includes the air inlet pipe being connected to cabinet and exhaust pipe, and above-mentioned air inlet pipe is connected with gas
Body generating device.The setting of above-mentioned air inlet pipe and exhaust pipe can make gas in cabinet circulate, be generated by gas generating unit
Cold air, hot gas, moisture, dry gas and etchant gas one or more mixed gas, mixed gas pass through air inlet pipe enter
Cabinet is discharged the intracorporal original gas of case from exhaust pipe, and then draws up specific gas environment in cabinet inner module, realizes specific gas
Fatigue test under body environment.
Further preferably, above-mentioned gas generating device includes atmosphere generator, cold air generator, humidifier, dry gas hair
Raw device and hot air generator it is one or more, above-mentioned air inlet pipe is additionally provided with air agitator close to the side of cabinet.It is above-mentioned
Atmosphere generator, cold air generator, humidifier, dry gas generator and hot air generator are used to generate various gas with various,
Above-mentioned air agitator is used for gas test environment that is all kinds of Gas Stirrings are uniform, and then obtaining different.
Further preferably, sensor for monitoring air is provided in above-mentioned air inlet pipe, exhaust pipe and cabinet.Above-mentioned air monitering
The setting of sensor can be used for monitoring test environment, and regulate and control the intracorporal gas of input magazine according to experimental enviroment, and then adjust examination
Test environment.
Preferably, the bottom of above-mentioned cabinet is provided with sample storage chamber, and sample protection liquid, examination are filled in sample storage chamber
Sample storage chamber is used to store the sample of fracture.It is above-mentioned that liquid is protected to can be the not volatile non-corrosive organic liquid such as diesel oil,
Be also possible to other non-corrosive liquid, for protecting fracture, prevent fracture by environment simulator gas attack or
High-temperature oxydation.
Further preferably, said sample storage chamber is setting in the intracorporal pumping case of case, and above-mentioned pumping case is drawing and pulling type；Above-mentioned case
It is provided with the elastic network(s) extended obliquely downward to pumping case in vivo, sample is tumbled through elastic network(s) to pumping case.The setting of above-mentioned elastic network(s),
It can receive the sample of fracture, and play the role of guiding for the rolling of sample, tumble sample to pumping case；It is most important, bullet
Property net can also play the role of protect fracture, it is not in physical damage on elastic network(s) that fracture, which is fallen to,.Above-mentioned pumping case is set
It sets, can be used for storing protection liquid, tester need to only pour into protection liquid in pumping case, reduce the usage amount of protection liquid；
Meanwhile pumping case designs for drawing and pulling type, and tester can extract pumping case out at any time, for taking out sample or addition protection liquid, sample
It takes out and the addition work of protection liquid is simple to operation.
Preferred again, above-mentioned environment simulator includes the air inlet pipe being connected to cabinet and exhaust pipe, is respectively used to defeated
Entering the gas of particular atmosphere and the intracorporal gas of case is discharged, the connector of above-mentioned cabinet and air inlet pipe is located at elastic network(s) lower part,
The connector of above-mentioned cabinet and exhaust pipe is located at elastic network(s) top.Above-mentioned air inlet pipe is located at elastic network(s) lower part, and exhaust pipe is located at bullet
The online portion of property, the gas of entrance first enter back into experimental enviroment locating for sample through elastic network(s), and elastic network(s) can also play homogenating plate
Effect, elastic network(s) flows gas gently in cabinet, is uniformly distributed, and prevents local location and other positions in cabinet
Occur compared to the biggish situation of environment difference.
Preferably, fatigue test environment simulator further includes pedestal, and pedestal is connected with telescopic device, and above-mentioned cabinet is fixed
In the upper end of telescopic device.The setting of above-mentioned pedestal is used for installation casing, when fatigue tester height change, tester
Can be by the telescopic device regulating height of box body on pedestal, and then it is adapted to different fatigue testers, different test heights.
Fatigue test environment simulator provided by the invention compared with prior art, has the advantages that
Fatigue test environment simulator provided by the invention, the sealing sample of the packing cloth made of flexible material protrude into
Mouth and the gap between sample or loudspeaker, can play preferable sealing effect, make the intracorporal simulated environment of case and extraneous separation,
Prevent the intracorporal simulated environment of case and extraneous ventilation；And packing cloth can deform, Bu Huiying with the vibration of sample or loudspeaker
The vibration for ringing sample or loudspeaker, does not influence test result.
Detailed description of the invention
Fig. 1 is the schematic perspective view based on fatigue test environment simulator of the invention.
Fig. 2 is the sectional view based on fatigue test environment simulator of the invention.
Fig. 3 is the main view based on fatigue test environment simulator of the invention.
Fig. 4 is the side view based on fatigue test environment simulator of the invention.
Fig. 5 is the portion the A enlarged drawing in Fig. 2.
Fig. 6 is the portion the B enlarged drawing in Fig. 3.
Wherein, appended drawing reference includes:
1 cabinet；2 samples；3 packing cloths；31 clips；4 loudspeaker；5 pumping cases；6 elastic network(s)s；7 air inlets；8 exhaust outlets；9 bottoms
Seat；91 telescopic devices；10 observation windows.
Specific embodiment
In order to it is clearer illustrate the application general idea, with reference to the accompanying drawings of the specification 1 to 6 in an illustrative manner into
Row is described in detail.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, still, the present invention may be used also
To be implemented using other than the one described here other modes, therefore, protection scope of the present invention is not by described below
Specific embodiment limitation.
In addition, in the description of the present invention, it is to be understood that, term " center ", "upper", "lower", "front", "rear",
The orientation of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " axial direction ", " radial direction ", " circumferential direction "
Or positional relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description of the present invention and simplification of the description, and
It is not that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore
It is not considered as limiting the invention.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected, can also be communication；It can be directly connected, can also indirectly connected through an intermediary, it can be with
It is the interaction relationship of the connection or two elements inside two elements.For the ordinary skill in the art, may be used
To understand the concrete meaning of above-mentioned term in the present invention as the case may be.
Embodiment 1
Fatigue test environment simulator provided in this embodiment, be applied to fatigue tester, fatigue tester it is rod-shaped
Loudspeaker upper end connect ultrasonic oscillator, lower end connect sample, for connect sample and transmitting vibration；Fatigue test environmental simulation
Device can be tightly connected with sample, can also be tightly connected with loudspeaker.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4 and Fig. 6, fatigue test environment simulator includes cabinet 1, when prepared by cabinet 1
It should be noted that guaranteeing that leakproofness is good；Above-mentioned cabinet 1 is connected with environment simulator, environment simulator be for simulate low temperature,
The equipment of the environment such as high temperature, etchant gas atmosphere.It is provided with sample on above-mentioned cabinet 1 and protrudes into mouth, sample 2 protrudes into mouth energy through sample
It enough protrudes into cabinet 1, sample 2 carries out fatigue test in the specific environment in cabinet 1.Said sample 2 connects sample 2
The inner wall that loudspeaker 4 and sample protrude into mouth need to also guarantee that the loudspeaker 4 of sample 2 or connection sample 2 will not be touched in vibration there are gap
Touching sample protrudes into a mouthful inner wall.Said sample stretches the packing cloth 3 that inlet is provided with annular, and above-mentioned packing cloth 3 is by flexible material
It is manufactured, wherein flexible material can be silica gel, rubber or it is other can play sealing, but soft be capable of plastic deformation
Material；The lower end connection sample of above-mentioned packing cloth 3 protrudes into mouth, the upper end of above-mentioned packing cloth 3 and 2 top of sample or connect sample 2
Loudspeaker 4 be connected；The connection of foregoing description should be tightly connected, and packing cloth 3 protrudes into mouth and sample 2 or loudspeaker for sealing sample
Gap between 4.
Wherein, in above-mentioned technology contents, it should be noted that: when sample 2 is fully inserted into cabinet 1,4, loudspeaker
It is protruded into mouth in sample, what packing cloth 3 sealed is the gap that loudspeaker 4 and sample protrude into mouth；When sample 2 partially protrudes into cabinet 1
When, 2 top of sample is located at sample and protrudes into mouth, and what packing cloth 3 sealed is the gap that sample 2 and sample protrude into mouth.
Specifically, the connection of packing cloth 3 can be from being completed with lower component and connection relationship: it is above-mentioned stretch inlet be provided with to
The connection short tube of upper extension, the lower end cap of packing cloth 3 connect on connection short tube, and through clip 31 with short tube sealing is connect
It connects；The upper end cap of above-mentioned packing cloth 3 is tightly connected on the loudspeaker 4 of 2 top of sample or connection sample 2, and through clip 31.On
It states packing cloth 3 and is connected by clip 31 with short tube is connect, is connected by clip 31 with sample 2 or loudspeaker 4, connection type
It is simple and reliable and quick detachable.Certainly, when packing cloth 3 has preferable elasticity, connection can also be respectively fitted over by 3 both ends of packing cloth
On the loudspeaker 4 of short tube and 2 top of sample or connection sample 2,3 elasticity of packing cloth tightens realization and is connected and fixed.Specifically, packing cloth
3 connection type can also change other modes that can be arbitrarily tightly connected, such as flexible strand binding into.Removing for convenience
The connection type of fatigue test environmental cabinet, packing cloth 3 should choose easily disassembled sealed connection mode as far as possible.
Specifically, above-mentioned environment simulator includes the air inlet pipe being connected to cabinet 1 and exhaust pipe, above-mentioned air inlet pipe connection
Have a gas generating unit, gas generating unit include atmosphere generator, cold air generator, humidifier, dry gas generator and
Hot air generator it is one or more, above-mentioned air inlet pipe is also an option that close to the side of cabinet 1 is provided with air agitator.On
The setting of air inlet pipe and exhaust pipe is stated, gas in cabinet 1 can be made to circulate；Cold air, hot gas, wet is generated by gas generating unit
One or more mixed gas of gas, dry gas and etchant gas；Firstly, mixed gas carries out tentatively in air agitator
Stirring；Then mixed gas enters cabinet 1 by air inlet pipe, original gas in cabinet 1 is discharged from exhaust pipe, and then in case
Specific gas environment is simulated in body 1；Finally fatigue test is carried out under the specific gas environment.
More specifically, sensor for monitoring air is provided in above-mentioned air inlet pipe, exhaust pipe and cabinet 1.Above-mentioned air prison
The setting for surveying sensor can be used for monitoring test environment, and regulate and control all kinds of gas ratios in input cabinet 1 according to experimental enviroment
And mixed gas input rate, and then adjust experimental enviroment.When needing automation control, controller can also be set, controlled
Device connects sensor for monitoring air and gas generating unit, and controller is automatically adjusted according to the monitoring data of sensor for monitoring air
The power of each gas generating unit, and then adjust all kinds of gases and enter rate and ratio in cabinet 1.
Specifically, fatigue test environment simulator further includes pedestal 9, pedestal 9 is connected with telescopic device 91, the flexible dress
Setting 91 can be hydraulic cylinder, two support rods being threadedly coupled or the device that arbitrarily can be realized length variation；Above-mentioned cabinet 1 is solid
It is scheduled on the upper end of telescopic device 91, cabinet 1 is according to the telescopic adjustment height of telescopic device 91.The setting of above-mentioned pedestal 9, for pacifying
Vanning body 1, when fatigue tester height change, it is high that tester can adjust cabinet 1 by the telescopic device 91 on pedestal 9
Degree, and then it is adapted to different fatigue testers, different test heights.
Specifically, the cabinet 1 should be arranged are as follows: be able to observe that sample 2.More specific setting may is that be arranged on cabinet 1
There is observation window 10, is installed on observation window 10 with transparent glass or other materials sealing；More specific setting is it may also is that the cabinet
1 in whole or in part plate be to be made of transparent glass.
Specifically, the cabinet 1 can be set are as follows: have INSULATION DESIGN on cabinet 1.More specifically setting may is that in case
The outer wall and inner wall of body 1 are all covered with the insulating layer by cellucotton or the preparation of other thermal insulation materials.
Fatigue test environment simulator provided in this embodiment, the packing cloth 3 made of flexible material seal sample
The gap between mouth and sample 2 or loudspeaker 4 is protruded into, preferable sealing effect can be played, makes simulated environment in cabinet 1 and outer
Boundary separates, and prevents simulated environment and extraneous ventilation in cabinet 1；And packing cloth 3 can with the vibration of sample 2 or loudspeaker 4 and
Deformation, will not influence the vibration of sample 2 or loudspeaker 4, does not influence test result.
Embodiment 2
On the basis of embodiment 1, the present embodiment may be provided for the device of protection fracture, and particular content is as follows:
Fatigue test environment simulator provided in this embodiment is provided with examination in the bottom of cabinet 1 as shown in Figures 1 to 6
2 storage chamber of sample, 2 storage chamber of sample are used to receive and save the sample 2 of fracture；2 storage chamber of sample, which can be, to be arranged in cabinet 1 one
The pumping case 5 of side, above-mentioned pumping case 5 are drawing and pulling type, and tester can extract pumping case 5 out out of cabinet 1；It is filled in pumping case 5
Sample 2 protects liquid, protects liquid to can be the not volatile non-corrosive organic liquid such as diesel oil, is also possible to other non-corrosive
Liquid prevent fracture by the gas attack or high-temperature oxydation in environment simulator for protecting fracture.
Specifically, the elastic network(s) 6 extended obliquely downward to pumping case 5 is provided in above-mentioned cabinet 1, the laterally setting of elastic network(s) 6
It is arranged diagonally downward in cabinet 1, and to 5 direction of pumping case, when sample 2 is fallen on elastic network(s) 6, sample 2 is along elastic network(s) 6
It tumbles to pumping case 5.The setting of above-mentioned elastic network(s) 6, can play the role of guiding, tumble sample 2 to pumping case 5；It is most important,
Elastic network(s) 6 can also play the role of protecting fracture, and it is not in physical damage that fracture, which is fallen on elastic network(s) 6,.
More specifically, above-mentioned environment simulator includes the air inlet pipe being connected to cabinet 1 and exhaust pipe, is respectively used to input
The gas and the gas in discharge cabinet 1 of particular atmosphere, above-mentioned cabinet 1 and the connector of air inlet pipe are located at 6 lower part of elastic network(s),
The connector of above-mentioned cabinet 1 and exhaust pipe is located at 6 top of elastic network(s).Above-mentioned air inlet pipe is located at 6 lower part of elastic network(s), and exhaust pipe is located at
6 top of elastic network(s), the gas of entrance first enter back into experimental enviroment locating for sample 2 through elastic network(s) 6, and elastic network(s) 6 can also play
The effect of homogenating plate, elastic network(s) 6 flow gas gently in cabinet 1, are uniformly distributed, and prevent local location in cabinet 1
The biggish situation of environment difference is compared with other positions to occur.
Fatigue test environment simulator provided in this embodiment is provided with pumping case 5, and storage protection liquid, is used in pumping case 5
The sample 2 for protecting fracture, stores protection liquid using pumping case 5 rather than 1 bottom of cabinet is stuffed entirely with protection liquid, can reduce protection
The usage amount of liquid.Meanwhile pumping case 5 designs for drawing and pulling type, tester can extract pumping case 5 out at any time, for taking out sample 2 or addition
Liquid is protected, the taking-up of sample 2 and the addition work of protection liquid are simple to operation.
Certainly, described above is only that presently preferred embodiments of the present invention is answered the present invention is not limited to enumerate above-described embodiment
When explanation, anyone skilled in the art is all equivalent substitutes for being made, bright under the introduction of this specification
Aobvious variant, all falls within the essential scope of this specification, ought to be by protection of the invention.
Claims (10)
1. a kind of fatigue test environment simulator, which is characterized in that including cabinet, the cabinet is connected with environmental simulation dress
It sets；It it is provided with sample on the cabinet protrudes into mouth, sample protrudes into mouth through sample and protrudes into cabinet, the sample or connection sample
Loudspeaker and sample protrude into the inner wall of mouth, and there are gaps；
The sample protrudes into the packing cloth that mouth is connected with annular, and the packing cloth is fabricated from a flexible material；The packing cloth
Lower end connection sample protrude into mouth, the upper end of the packing cloth and sample top or the loudspeaker for connecting sample are connected.
2. fatigue test environment simulator as described in claim 1, which is characterized in that the inlet of stretching is provided with upwards
The connection short tube of extension, the lower end cap of packing cloth are tightly connected on connection short tube, and through clip with short tube is connect；It is described
The upper end cap of packing cloth passes through clip and is tightly connected on the loudspeaker of sample top or connection sample；The packing cloth be by
Made of silica gel.
3. fatigue test environment simulator as described in claim 1, which is characterized in that be provided with observation on the cabinet
Window is sealed and installed with transparent panel on the observation window.
4. fatigue test environment simulator as described in claim 1, which is characterized in that the environment simulator include with
The air inlet pipe and exhaust pipe, the air inlet pipe of cabinet connection are connected with gas generating unit.
5. fatigue test environment simulator as claimed in claim 4, which is characterized in that the gas generating unit includes gas
One or more, the air inlet pipe of atmosphere generator, cold air generator, humidifier, dry gas generator and hot air generator
Side close to cabinet is additionally provided with air agitator.
6. fatigue test environment simulator as described in claim 4 or 5, which is characterized in that the air inlet pipe, exhaust pipe and
Sensor for monitoring air is provided in cabinet.
7. fatigue test environment simulator as described in claim 1, which is characterized in that the bottom of the cabinet is provided with examination
Sample storage chamber, the sample storage chamber is interior to be filled with sample protection liquid.
8. fatigue test environment simulator as claimed in claim 7, which is characterized in that the sample storage chamber is that setting exists
The intracorporal pumping case of case, the pumping case are drawing and pulling type；It is provided with the elastic network(s) extended obliquely downward to pumping case in the cabinet, tries
Sample is tumbled through elastic network(s) to pumping case.
9. fatigue test environment simulator as claimed in claim 8, which is characterized in that the environment simulator include with
The air inlet pipe and exhaust pipe of cabinet connection are respectively used to the gas and the discharge intracorporal gas of case of input particular atmosphere, described
Cabinet and the connector of air inlet pipe are located at elastic network(s) lower part, and the connector of the cabinet and exhaust pipe is located at elastic network(s) top.
10. fatigue test environment simulator as described in claim 1, which is characterized in that further include pedestal, pedestal is connected with
Telescopic device, the cabinet are fixed on the upper end of telescopic device.
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| CN201811157142.3A CN109444029A (en) | 2018-09-30 | 2018-09-30 | A kind of fatigue test environment simulator |
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