CN106483020A - High Temperature High Pressure fretting fatigue testing machine - Google Patents
High Temperature High Pressure fretting fatigue testing machine Download PDFInfo
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- CN106483020A CN106483020A CN201611075732.2A CN201611075732A CN106483020A CN 106483020 A CN106483020 A CN 106483020A CN 201611075732 A CN201611075732 A CN 201611075732A CN 106483020 A CN106483020 A CN 106483020A
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- 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
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- 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
- G01N3/02—Details
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- 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
- G01N3/02—Details
- G01N3/04—Chucks
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- 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
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
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- 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
- G01N2203/005—Electromagnetic means
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- 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
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- 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
- G01N2203/022—Environment of the test
- G01N2203/023—Pressure
- G01N2203/0232—High pressure
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- 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
- G01N2203/022—Environment of the test
- G01N2203/0236—Other environments
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- 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
- G01N2203/04—Chucks, fixtures, jaws, holders or anvils
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
The invention discloses a kind of High Temperature High Pressure fretting fatigue testing machine, can be used for the fretting fatigue testing under high-temperature high pressure water, steam or liquid environment, the normal direction force loading device adopting in this testing machine only need to select the linear electric motors of side crops industry just to can achieve that carrying out constant normal force to sample loads, the force value of loss after wearing and tearing between compress gasket and sample is compensated in real time in whole process of the test, it can significantly increase load control and certainty of measurement, obtain stable normal force and load force value, and then improve the bulk testing precision of this fretting fatigue testing machine.
Description
Technical field
The present invention relates to a kind of High Temperature High Pressure fretting fatigue testing machine.
Background technology
Fine motion（fretting）It is exactly a kind of wear phenomenon occurring in two contact surfaces, typically occurred in small
, in the contact surface of continuous relative motion, typically its displacement amplitude is micron dimension, generally at more than tens to one hundred micron
Between.Fretting fatigue refers to component in the presence of cyclic loading, because a certain position in surface and other contact surfaces generation are little
Amplitude leads to component fatigue intensity decreases or the phenomenon of early fracture relative to slip.Fretting fatigue（Fretting Fatigue,
FF）Phenomenon is widely present in the fields such as machinery, traffic, electric power, Aero-Space, or even biomedical engineering, and it can accelerate zero
The fatigue crack initiation of part and extension, thus substantially reducing service life, or even cause catastrophic failure, therefore fretting damage quilt
Cancer referred to as in industry.Research shows, fine motion can make the fatigue life reduction by 20% ~ 80% of component, even lower.Therefore, it is
The derogatory behaviour of system ground research fretting fatigue and safeguard procedures, have important theory significance and engineering application value.
But the abrasion of industrial circle inner part is it occur frequently that in high temperature and/or high pressure chemical environment of water or gaseous environment
In, on conventional mechanics machine, the data between measured part can not be suitable for.Not being directed in prior art should
Plant the fretting fatigue testing machine of high temperature chemical environment of water or environment of high temperature gas in industrial circle, the application is directed to the problems referred to above
And propose, provide a whole set of assay device for fretting fatigue testing under high-temperature pressure chemical environment of water, high-temperature pressure gaseous environment.
Additionally, in fretting fatigue testing, keeping normal force to load steadily in the long term most important, this is quantitatively characterizing fine motion
Key on material fatigue life impact.And the fretting fatigue normal force loading method commonly used at present is bolt loading or NOL ring
Load, the shortcoming of this method is：With the carrying out of test, will wear and tear between pad and sample, therefore lead to both
Between normal force cannot keep constant, can persistently reduce, or even normal force be zero.This method at normal temperatures and pressures or
Perhaps using the loss being manually adjusted compensation normal force, but in high temperature high pressure enclosed environment, manually can cannot be carried out
Adjustment compensates, and manually adjusts compensation and can not accomplish real-time adjustment.
Content of the invention
The invention aims to overcoming the shortcoming of prior art, provide a kind of High Temperature High Pressure fretting fatigue testing machine.
For reaching above-mentioned purpose, the technical solution used in the present invention is：A kind of High Temperature High Pressure fretting fatigue testing machine, including
Support, oscilaltion ground are located at the main shaft on described support, the pressure vessel that is fixedly arranged on described support, described pressure vessel tool
There is the closed environment chamber that can fill high temperature and high pressure environment, described main shaft stretches in described environmental chamber, it is solid that sample passes through fixture
It is scheduled on described main shaft and is set in described environmental chamber, described testing machine is also included for carrying out normal force to described sample
The normal direction force loading device loading, described normal direction force loading device includes：
Compress gasket, described compress gasket has two groups, and this compress gasket described in two groups is separately positioned on described sample radially
Different both sides are radially to compress described sample respectively；
Pad guide plate, its relatively described fixture is fixedly provided in described environmental chamber, and described pad guide plate opens up
There is the accepting groove being available for described sample and radially penetrating, be located at described accepting groove both sides respectively and be connected with described accepting groove
Two gathering sills, compress gasket described in two groups is arranged in the described gathering sill of both sides with being slidably matched respectively；
Pressure holding mechanism, described pressure holding mechanism has two groups, is respectively used to apply compress gasket described in two groups with thrust, described pressure holding
Mechanism includes the linear electric motors being installed on described support, the pressure self-balancing on the motor shaft being fixed in described linear electric motors draws
Stretch axle, described pressure self-balancing tensile axis have the outfan stretching into described environmental chamber, described outfan is permanently connected
Force sensor, described pressure holding mechanism also includes the connecting shaft that one end is fixed in described force transducer, described connecting shaft another
End is for pushing described compress gasket to apply the compression end of thrust；
Described normal direction force loading device also include can according to two groups force transducer feedback pressure value control two groups described in
The controller of linear electric motors working condition.
Preferably, the described compression end of connecting shaft described in both sides stretches into respectively in axial direction and applies in described gathering sill accordingly
Plus described compress gasket is with thrust.
Preferably, the contact end face that described compress gasket is contacted with described sample is arc surface, plane or sphere, both sides
The centerline collineation of described compress gasket and the radial centre lines extension along described sample.
Preferably, described pad guide plate is in the form of annular discs, and described accepting groove is in the U-shaped towards its radial outside for the opening,
Described pad guide plate is fixed on described fixture.
Preferably, between described compress gasket and described gathering sill, gap is ordinatedly arranged.
Preferably, described pressure vessel is the autoclave that can fill high temperature and high pressure gas or liquid environment, described high pressure
Kettle includes the kettle being fixedly installed on described support, the kettle cover that can ordinatedly open and close on described kettle, described fatigue
The described main shaft of testing machine stretches into through described kettle cover in the inner chamber of described autoclave.
Further, described fixture be fixedly mounted on described kettle cover by described sample be fixedly mounted on described fixture with
Between described main shaft, described pad guide plate is arranged with described kettle cover, described fixture with being relatively fixed.
As a kind of specific embodiment, described fixture includes clamping fixture seat, is fixedly connected described clamping fixture seat and described kettle
Many connecting posts of lid, described pad guide plate is fixedly provided in many described connecting posts.
Further, described fatigue machine also includes the adjustable crossbeam of relatively described support upper-lower position, described kettle cover
It is arranged on described crossbeam；Described main shaft can be additionally provided with use on described crossbeam vertically up and down on described crossbeam
In ordering about the lift drive mechanism that described main shaft vertically lifts.
Further, described lift drive mechanism includes being arranged on the oil cylinder on described crossbeam top, the stretching of described oil cylinder
Contracting bar is extended downwardly from and is connected with described main shaft, is additionally provided with another force transducer between described main shaft and described expansion link,
Described main shaft adopts another pressure self-balancing tensile axis, and the top of described oil cylinder is additionally provided with displacement transducer.
Due to the utilization of technique scheme, the present invention compared with prior art has following advantages：The high temperature of the present invention
High pressure fretting fatigue testing machine, can be used for the fretting fatigue testing under high-temperature high pressure water, steam or liquid environment, in this testing machine
Using normal direction force loading device only need to select side crops industry linear electric motors just can achieve normal force constant load, mend in real time
Repay the force value of loss after wearing and tearing between compress gasket and sample, keep normal force to be worth constant, it can significantly carry
Top load controls and certainty of measurement, obtains stable normal force and loads force value, and then improves the entirety of this fretting fatigue testing machine
Test accuracy.
Brief description
Accompanying drawing 1 is the overall structure schematic perspective view of the fatigue machine of the present invention；
Accompanying drawing 2 is the front view of the fatigue machine of the present invention；
Accompanying drawing 3 is the diagrammatic side-view cross-sectional schematic diagram of the fatigue machine of the present invention；
Accompanying drawing 4 is the enlarged diagram of normal direction force loading device part in accompanying drawing 3；
Accompanying drawing 5 is the scheme of installation of sample；
Accompanying drawing 6 is the schematic diagram of pad guide plate；
Accompanying drawing 7,8,9,10 is respectively the loading adjustment principle schematic of normal direction force loading device.
Wherein：10th, support；20th, crossbeam；30th, column；40th, oil cylinder；50th, displacement transducer；60th, force transducer；70th, even
Acting flange；80th, connect column；
1st, autoclave；11st, kettle；12nd, kettle cover；2nd, main shaft；3rd, sample；4th, fixture；41st, clamping fixture seat；42nd, connecting post；5th, compress
Pad；6th, pad guide plate；61st, accepting groove；62nd, gathering sill；7th, pressure holding mechanism；71st, linear electric motors；72nd, pressure self-balancing draws
Stretch axle；73rd, force transducer；74th, connecting shaft；8th, controller.
Specific embodiment
Come with specific embodiment below in conjunction with the accompanying drawings technical scheme is further elaborated.
Referring to Fig. 1 to shown in 6, a kind of High Temperature High Pressure fretting fatigue testing machine, it includes support 10, is fixedly provided in machine
The two root posts 30 that vertically extend on seat 10, oscilaltion it is arranged on column 30 relatively support 10 upper-lower position
Adjustable crossbeam 20, crossbeam 20 is provided with main shaft 2, and main shaft 2 can be arranged on to oscilaltion on crossbeam 20.The top of crossbeam 20
Be additionally provided with the lift drive mechanism for drive shaft 2 oscilaltion, herein, lift drive mechanism adopt for oil cylinder 40, oil
The expansion link of cylinder 40 is extended downwardly from and is connected with main shaft 2, reciprocal under certain amplitude or load, frequency for providing and controlling
Motion.It is additionally provided with force transducer 60, what main shaft 2 adopted herein stretches for pressure self-balancing between main shaft 2 and above-mentioned expansion link
Axle；The cylinder body top of oil cylinder 40 is additionally provided with displacement transducer 50, to detect main shaft 2 displacement vertically.
Referring to shown in Fig. 1 to Fig. 6, this fatigue machine also includes the pressure vessel being fixedly arranged on support 10, and this pressure holds
Utensil has the closed environment chamber that can fill high temperature and high pressure gas or liquid environment, here, pressure vessel adopt for high pressure
Kettle 1, this autoclave 1 includes the kettle 11 being fixedly provided on support 10, the kettle cover that can coordinate keying on kettle 11
12, kettle cover 12 ordinatedly covers on kettle 11 just so that the inner chamber of kettle 11 is closed and can fill high temperature and high pressure gas or liquid
Environment, controls the ambient parameter in the environmental chamber of autoclave 1 by other setting water circulation with water chemistry detecting system.
Main shaft 2 stretches into through kettle cover 12 in the environmental chamber of autoclave 1, and sample 3 is fixed on main shaft 2 by fixture 4
And be set in the environmental chamber of autoclave 1.Herein, because main shaft 2 employing is pressure self-balancing tensile axis, it has pressure
Self-balancing, it is thus possible to offset autoclave 1 inside and outside differential pressure, eliminates the thrust that pressure reduction produces, and it is high to be capable of high temperature
Dynamic sealing under pressure ring border, comes Actuator Division and the fixture 4, Ke Yibao in kettle of joint test machine using this pressure self-balancing tensile axis
By autoclave 1 inside and outside differential pressure, load is not affected in the Actuator Division reciprocatory movement of card fatigue machine.
Referring to shown in Fig. 1, Fig. 2, kettle cover 12 is connected on crossbeam 20 in crossbeam 20 its phase of drive by loading and unloading container mechanism
The lifting of kettle 11 is realized open and close.Specifically, above-mentioned handling container mechanism includes adpting flange 70 and Duo Gen connects column 80,
Adpting flange 70 is bolted to connection in crossbeam 20 lower surface, and the lower end connecting column 80 is fixedly connected on kettle cover 12,
Its upper end passes through through hole on adpting flange 70 and passes through nut locking, and so, in installation autoclave 1, crossbeam 20 is to moving down
Dynamic, kettle cover 12 lands, when connecting the nut on column 80 and not contacting with the surface of adpting flange 70, you can determine kettle cover 12 and
Kettle 11 cooperation is installed.When connection column 80 can avoid it to be fixedly connected with the above-mentioned setting of adpting flange 70, kettle cover is installed
During 12, after kettle cover 12 is installed with kettle 11 cooperation, crossbeam 20 excessively move and so that whole device is in stress shape
State, causes the damage of assay device.
Referring to shown in each accompanying drawing, this fatigue machine also includes adding for the normal force carrying out normal force loading to sample 3
Carry and put, this normal direction force loading device includes：
Compress gasket 5, this compress gasket 5 has two groups, is separately positioned on sample 3 different both sides radially radially to press respectively
Tight sample 3.The contact end face that compress gasket 5 is contacted with sample 3 can be arc surface, plane or sphere, the class of contact end face
Type is determined with specific reference to test requirements document.The centerline collineation of the both sides compress gasket 5 and radial centre lines with sample 3 are prolonged
Stretch, to apply normal force to sample 3 when guaranteeing to compress two compress gaskets 5 respectively from both sides；
Pad guide plate 6, this pad guide plate 6 opposed jaw 4 is fixedly provided in the environmental chamber of autoclave 1, for
Two compress gasket 5 is provided to compress motion guide during sample 3.Specifically, shown in Figure 6, this pad guide plate 6 is in disk
Shape, offer thereon the accepting groove 61 being available for sample 3 and radially penetrating, respectively be located at accepting groove 61 both sides and with accepting groove 61 phase
Two gathering sills 62 of connection, accepting groove 61 is in the U-shaped towards its radial outside for the opening, and sample 3 is radially into accepting groove
61, and the compress gasket 5 of both sides is slidably cooperatively disposed in the gathering sill 62 of both sides respectively, compress gasket 5 and gathering sill
Can ordinatedly arrange in gap between 62, this gap width should be when ensureing in high-temperature expansion can slidably on the premise of to the greatest extent may be used
Can little.In the present embodiment, pad guide plate 6 is fixedly provided on fixture 4, and specifically, fixture 4 includes clamping fixture seat 41 He
It is fixedly connected on many connecting posts 42 between clamping fixture seat 41 and autoclave 1 kettle cover 12, pad guide plate 6 is fixed on above-mentioned
In many connecting posts 42, as shown in Figure 5；
Pressure holding mechanism 7, this pressure holding mechanism 7 has two groups, to be respectively used to apply both sides compress gasket 5 with thrust, thus applying
Sample 3 is with normal force.Referring to shown in Fig. 3, Fig. 4, Mei Zu pressure holding mechanism 7 all includes the straight-line electric being fixedly provided on support 10
Machine 71, the pressure self-balancing tensile axis 72 being fixedly arranged on the motor shaft of linear electric motors 71, this pressure self-balancing tensile axis 72 has
Stretch into the outfan in the environmental chamber of autoclave 1, this outfan is permanently connected force sensor 73；This pressure holding mechanism 7
Also include connecting shaft 74, one end of this connecting shaft 74 is fixed in force transducer 73, and the other end of connecting shaft 73 is for pushing pressure
Tight pad 5 is to apply the compression end of thrust.When carrying out normal force loading, the compression end of the connecting shaft 73 of both sides is respectively along axle
Apply corresponding compress gasket 5 to stretching into thrust in corresponding gathering sill 62.
This normal direction force loading device also includes controller 8, and this controller 8 is connected with force transducer 73 signal of both sides, with
When be connected with linear electric motors 71 signal of both sides.This controller 8 can be controlled according to the pressure value of two load cells 73 feedback
Make the working condition of two groups of linear electric motors 71 so that both sides compress gasket 5 apply sample 3 normal force be maintained at setting value or
Person is maintained in set point.
The work process of High Temperature High Pressure fretting fatigue testing machine of explanation the present embodiment and operation principle briefly below：
First, fixture 4 is attached on the kettle cover 12 of autoclave 1, pad guide plate 6 is installed simultaneously, then sample 3 is attached to press from both sides
Between tool seat 41 and main shaft 2, and sample 3 is made to pass radially through the accepting groove 61 of pad guide plate 6, then by two compress gaskets
5 are respectively implanted in two gathering sills 61 of pad guide plate 6 so that gentle touchdown between both sides compress gasket 5 and sample 3, install
When the line of centres that both sides compress gasket 5 contacted with sample 3 should be made should to extend along the radial centre lines of sample 3 as far as possible.Again
Then, crossbeam 20 is fallen the installation so that kettle cover 12 is matched with kettle 11 with respect to support 10 and forms airtight environmental chamber,
Ambient parameter in the environmental chamber of autoclave 1 is controlled by water circulation and water chemistry detecting system so that in environmental chamber
Full ambient condition meets test requirements document.
Followed by the loading of normal force, when initial, shown in Figure 7, now the compression end of connecting shaft 74 is not yet stretched
Enter in the gathering sill 62 of pad guide plate 6, now normal force F0=0.First determine compression end and compress gasket 5 end of connecting shaft 74
The distance between face S, controller 8 switches to displacement control mode.As shown in figure 8, controller 8 controls the linear electric motors 71 of both sides
After being operated so that the displacement of the compression end of connecting shaft 74 reaches S, linear electric motors 71 temporarily cease work, now compression end and pressure
Gentle touchdown between the end face of tight pad 5, normal force F0=0.
Then, controller 8 switches to force control mode, and controller 8 receives the pressure value of force transducer 73 feedback of both sides
To control the working condition of linear electric motors 71.Specific as follows：As shown in figure 9, controller 8 control two groups of linear electric motors 71 to work and
Connecting shaft 74 move toward one another of both sides is made respectively to move closer to the compress gasket 5 of both sides, 73 points of the force transducer of both sides
Pressure value F not detected to controller 8 Real-time Feedback0, when pressure value F detecting0Less than the default stress value F of test1
When, controller 8 controls linear electric motors 71 described in two to work and continue to order about two connecting shaft 74 move toward one another, until force transducer 73
Feed back to pressure value F of controller 80Equal to F1When, as shown in Figure 10, controller 8 controls two linear electric motors 71 stop motion to protect
Hold this pressure value, start fretting fatigue testing.
During fretting fatigue testing, this normal direction force loading device remains that compress gasket 5 puts on sample 3
Normal force is maintained in set point, and this set point is F0=F1± f, wherein f fluctuate for the normal force value that fatigue test sets
Range value.Specifically, pressure value F that two force transducers 73 detect to controller 8 Real-time Feedback respectively0, work as F1-f≤F0≤F1
During+f, controller 8 controls linear electric motors 71 to keep the state of stop motion；Work as F0≤F1During-f, controller 8 controls linear electric motors
71 work and order about two connecting shaft 74 move toward one another and increase pressure value；Work as F0≥F1During-f, controller 8 controls linear electric motors 71
Work and order about two connecting shafts 74 and move in the opposite direction and reduce pressure value.So just ensure that whole fretting fatigue testing
During normal force constant load.
To sum up, the High Temperature High Pressure fretting fatigue testing machine of the present invention, has the advantage that：
（1）This fretting fatigue testing machine can be simulated nuclear power station one, secondary circuit temperature, under press water electrochemical conditions, be carried out fine motion
Fatigue test；
（2）Fretting fatigue testing is carried out using this fretting fatigue testing machine, the way of contact between sample 3 and compress gasket 5 can
To be point, line, surface contact, measurement can obtain the Fatigue life cycles number of each sample, multigroup sample, and different parameters are permissible
Obtain the Fatigue Life Curve of sample, i.e. S-N curve；
（3）This fatigue machine simple for structure, its perpendicularity and levelness conveniently adjusted, to ensure the same of fatigue machine
Axle degree, perpendicularity；
（4）The normal direction force loading device adopting in this fatigue machine, it need to select the linear electric motors of side crops industry just to can achieve
The constant load of normal force, compensates the force value of loss after wearing and tearing between compress gasket and sample in real time, it is possible to increase
Load controls and certainty of measurement, obtains stable normal force and loads force value；
（5）Using the design of pressure self-balancing tensile axis, it is possible to achieve the counteracting of autoclave 1 inside and outside differential pressure, eliminate what pressure reduction produced
Thrust, improves the precision of test further.
Above-described embodiment only technology design to illustrate the invention and feature, its object is to allow person skilled in the art
Scholar will appreciate that present disclosure and implements according to this, can not be limited the scope of the invention with this.All according to the present invention
Equivalence changes or modification that spirit is made, all should be included within the scope of the present invention.
Claims (10)
1. a kind of High Temperature High Pressure fretting fatigue testing machine, including support, main shaft on described support for the oscilaltion ground, fixed
Pressure vessel on described support, described pressure vessel has the closed environment chamber that can fill high temperature and high pressure environment, described
Main shaft stretches in described environmental chamber, and sample is fixed on described main shaft by fixture and is set in described environmental chamber, its
It is characterised by, described testing machine also includes the normal direction force loading device for described sample is carried out with normal force loading, described method
Include to force loading device：
Compress gasket, described compress gasket has two groups, and this compress gasket described in two groups is separately positioned on described sample radially
Different both sides are radially to compress described sample respectively；
Pad guide plate, its relatively described fixture is fixedly provided in described environmental chamber, and described pad guide plate opens up
There is the accepting groove being available for described sample and radially penetrating, be located at described accepting groove both sides respectively and be connected with described accepting groove
Two gathering sills, compress gasket described in two groups is arranged in the described gathering sill of both sides with being slidably matched respectively；
Pressure holding mechanism, described pressure holding mechanism has two groups, is respectively used to apply compress gasket described in two groups with thrust, described pressure holding
Mechanism includes the linear electric motors being installed on described support, the pressure self-balancing on the motor shaft being fixed in described linear electric motors draws
Stretch axle, described pressure self-balancing tensile axis have the outfan stretching into described environmental chamber, described outfan is permanently connected
Force sensor, described pressure holding mechanism also includes the connecting shaft that one end is fixed in described force transducer, described connecting shaft another
End is for pushing described compress gasket to apply the compression end of thrust；
Described normal direction force loading device also include can according to two groups force transducer feedback pressure value control two groups described in
The controller of linear electric motors working condition.
2. High Temperature High Pressure fretting fatigue testing machine described in 1 is wanted according to right it is characterised in that：Connecting shaft described in both sides described
Compression end stretches into respectively in axial direction and applies described compress gasket with thrust in described gathering sill accordingly.
3. High Temperature High Pressure fretting fatigue testing machine described in 1 is wanted according to right it is characterised in that：Described compress gasket and described examination
The contact end face that sample contacts is arc surface, plane or sphere, the centerline collineation of compress gasket described in both sides and along described examination
The radial centre lines of sample extend.
4. High Temperature High Pressure fretting fatigue testing machine described in 1 is wanted according to right it is characterised in that：Described pad guide plate is in disk
Shape, described accepting groove is in the U-shaped towards its radial outside for the opening, and described pad guide plate is fixed on described fixture.
5. High Temperature High Pressure fretting fatigue testing machine described in 1 is wanted according to right it is characterised in that：Described compress gasket is led with described
To between groove, gap is ordinatedly arranged.
6. High Temperature High Pressure fretting fatigue testing machine described in 1 is wanted according to right it is characterised in that：Described pressure vessel is to fill
It is full of the autoclave of high temperature and high pressure gas or liquid environment, kettle that described autoclave includes being fixedly installed on described support, set
The kettle cover that can ordinatedly open and close on described kettle, the described main shaft of described fatigue machine passes through described kettle cover to stretch into institute
State in the inner chamber of autoclave.
7. High Temperature High Pressure fretting fatigue testing machine described in 6 is wanted according to right it is characterised in that：Described fixture is fixedly mounted on institute
State and on kettle cover, described sample is fixedly mounted between described fixture and described main shaft, described pad guide plate and described kettle
Lid, described fixture are arranged with being relatively fixed.
8. High Temperature High Pressure fretting fatigue testing machine described in 7 is wanted according to right it is characterised in that：Described fixture include clamping fixture seat,
It is fixedly connected many connecting posts of described clamping fixture seat and described kettle cover, described pad guide plate is fixedly provided in many described companies
Connect on post.
9. High Temperature High Pressure fretting fatigue testing machine described in 6 is wanted according to right it is characterised in that：Described fatigue machine also includes
The adjustable crossbeam of relatively described support upper-lower position, described kettle cover is arranged on described crossbeam；Described main shaft can be vertically
Up and down on described crossbeam, described crossbeam is additionally provided with and drives for ordering about the lifting that described main shaft vertically lifts
Mechanism.
10. High Temperature High Pressure fretting fatigue testing machine described in 9 is wanted according to right it is characterised in that：Described lift drive mechanism bag
Include the oil cylinder being arranged on described crossbeam top, the expansion link of described oil cylinder is extended downwardly from and is connected with described main shaft, described master
It is additionally provided with another force transducer, described main shaft adopts another pressure self-balancing tensile axis, described between axle and described expansion link
The top of oil cylinder is additionally provided with displacement transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611075732.2A CN106483020B (en) | 2016-11-30 | 2016-11-30 | High-temperature high-pressure fretting fatigue testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611075732.2A CN106483020B (en) | 2016-11-30 | 2016-11-30 | High-temperature high-pressure fretting fatigue testing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106483020A true CN106483020A (en) | 2017-03-08 |
| CN106483020B CN106483020B (en) | 2023-08-22 |
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| CN106990004A (en) * | 2017-04-26 | 2017-07-28 | 中国科学院金属研究所 | It is a kind of with the fretting fatigue testing device of HTHP recirculated water and its application |
| CN107589008A (en) * | 2017-11-03 | 2018-01-16 | 苏州热工研究院有限公司 | A kind of force measuring device being applied under high temperature and high pressure environment |
| CN107703014A (en) * | 2017-11-03 | 2018-02-16 | 岭东核电有限公司 | High temperature and high pressure environment impact wear testing machine |
| CN108458824A (en) * | 2018-03-14 | 2018-08-28 | 哈尔滨工业大学 | Linear motor normal direction force test device |
| CN109100219A (en) * | 2018-05-31 | 2018-12-28 | 西北工业大学 | Fretting fatigue testing device and method |
| CN109443948A (en) * | 2018-12-13 | 2019-03-08 | 西安科技大学 | Croop property pilot system and test method under a kind of high temperature and high pressure environment |
| CN110208125A (en) * | 2019-06-19 | 2019-09-06 | 中国科学院金属研究所 | A kind of high-temperature high pressure water fretting fatigue normal pressure bringing device and its application method |
| CN110907298A (en) * | 2019-11-20 | 2020-03-24 | 北京建筑大学 | Biaxial loading fretting fatigue test system and method |
| CN111693449A (en) * | 2020-06-22 | 2020-09-22 | 中国核动力研究设计院 | Telescopic corrosion kettle and corrosion test method for liquid lead-bismuth alloy |
| CN112683650A (en) * | 2020-12-09 | 2021-04-20 | 国核电站运行服务技术有限公司 | Normal fretting wear test device for high-temperature and high-pressure water environment |
| CN114486600A (en) * | 2022-04-18 | 2022-05-13 | 齐鲁工业大学 | Stepless variable load type axial loading system and bearing fretting wear testing machine |
| CN109307632B (en) * | 2018-11-16 | 2024-04-26 | 上海凯尔孚应力腐蚀试验设备有限公司 | High-temperature high-pressure composite fretting wear test device |
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|---|---|---|---|---|
| CN106990004A (en) * | 2017-04-26 | 2017-07-28 | 中国科学院金属研究所 | It is a kind of with the fretting fatigue testing device of HTHP recirculated water and its application |
| CN107589008A (en) * | 2017-11-03 | 2018-01-16 | 苏州热工研究院有限公司 | A kind of force measuring device being applied under high temperature and high pressure environment |
| CN107703014A (en) * | 2017-11-03 | 2018-02-16 | 岭东核电有限公司 | High temperature and high pressure environment impact wear testing machine |
| CN107703014B (en) * | 2017-11-03 | 2024-04-09 | 岭东核电有限公司 | Impact abrasion tester for high-temperature and high-pressure environment |
| CN107589008B (en) * | 2017-11-03 | 2023-08-22 | 苏州热工研究院有限公司 | Force measuring device suitable for under high temperature high pressure environment |
| CN108458824A (en) * | 2018-03-14 | 2018-08-28 | 哈尔滨工业大学 | Linear motor normal direction force test device |
| CN109100219B (en) * | 2018-05-31 | 2021-04-27 | 西北工业大学 | Fretting fatigue test device and method |
| CN109100219A (en) * | 2018-05-31 | 2018-12-28 | 西北工业大学 | Fretting fatigue testing device and method |
| CN109307632B (en) * | 2018-11-16 | 2024-04-26 | 上海凯尔孚应力腐蚀试验设备有限公司 | High-temperature high-pressure composite fretting wear test device |
| CN109443948A (en) * | 2018-12-13 | 2019-03-08 | 西安科技大学 | Croop property pilot system and test method under a kind of high temperature and high pressure environment |
| CN109443948B (en) * | 2018-12-13 | 2023-04-07 | 西安科技大学 | Creep performance test system and test method under high-temperature and high-pressure environment |
| CN110208125B (en) * | 2019-06-19 | 2023-12-08 | 中国科学院金属研究所 | High-temperature high-pressure water micro-fatigue positive pressure applying device and using method thereof |
| CN110208125A (en) * | 2019-06-19 | 2019-09-06 | 中国科学院金属研究所 | A kind of high-temperature high pressure water fretting fatigue normal pressure bringing device and its application method |
| CN110907298B (en) * | 2019-11-20 | 2022-01-18 | 北京建筑大学 | Biaxial loading fretting fatigue test system and method |
| CN110907298A (en) * | 2019-11-20 | 2020-03-24 | 北京建筑大学 | Biaxial loading fretting fatigue test system and method |
| CN111693449B (en) * | 2020-06-22 | 2022-05-17 | 中国核动力研究设计院 | Telescopic corrosion kettle and corrosion test method for liquid lead-bismuth alloy |
| CN111693449A (en) * | 2020-06-22 | 2020-09-22 | 中国核动力研究设计院 | Telescopic corrosion kettle and corrosion test method for liquid lead-bismuth alloy |
| CN112683650A (en) * | 2020-12-09 | 2021-04-20 | 国核电站运行服务技术有限公司 | Normal fretting wear test device for high-temperature and high-pressure water environment |
| CN114486600A (en) * | 2022-04-18 | 2022-05-13 | 齐鲁工业大学 | Stepless variable load type axial loading system and bearing fretting wear testing machine |
| CN114486600B (en) * | 2022-04-18 | 2022-07-05 | 齐鲁工业大学 | Stepless variable-load axial loading system and bearing fretting wear testing machine |
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