CN106323789A - Loading and measuring device for full sea depth simulation frictional wearing bed stand - Google Patents
Loading and measuring device for full sea depth simulation frictional wearing bed stand Download PDFInfo
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- CN106323789A CN106323789A CN201610933937.3A CN201610933937A CN106323789A CN 106323789 A CN106323789 A CN 106323789A CN 201610933937 A CN201610933937 A CN 201610933937A CN 106323789 A CN106323789 A CN 106323789A
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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
- G01N3/56—Investigating resistance to wear or abrasion
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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
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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
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Abstract
The invention discloses a loading and measuring device for a full sea depth simulation frictional wearing bed stand. The loading and measuring device mainly comprises a test force loading component and a measuring component, wherein the loading component can realize same-lateral and different-axis type loading through an annular loading cylinder, so that the sealing quantity can be reduced while the rigidity of a driving shaft can be guaranteed; the driving shaft is made from a compound material and has a non-contact type sealing structure; the interference of contact sealing on the transferring and measurement for the friction torque can be eliminated; the test force measuring component is used for converting the measurement for the loading force into the measurement for the displacement of a piston rod on the exterior of a high-pressure kettle; the transferring and measuring processes of the loading force are relatively independent from each other, so that the interference of frictional force and friction torque generated by the high-pressure sealing on the loading force measurement can be eliminated. On the full sea depth simulation frictional wearing bed stand, the loading and measuring device provided by the invention can realize the accurate transferring and accurate measurement for the friction torque and the frictional force between the interior and exterior of the high-pressure kettle, so that the problem of friction test under deep sea environment can be solved.
Description
Technical field
The invention belongs to friction-wear test platform design field, be specifically related to a kind of simulate under supertension marine environment rub
The spring charging assembly of testing stand is damaged in scouring.
Background technology
Along with land all kinds of resources are the most exhausted, carry out the exploration of marine resources, exploitation to improving human survival and development
Environment has its own strategic significance.2016, the Department of Science and Technology of China started the research work of the deep associated equipment in full sea.Because ocean
Equipment, especially deep sea equipment are the bases of marine technology development, and deep-sea material is the basis that marine settings is developed.Mesh
Before, in deep sea equipment, Partial key unit, the friction pair of device directly work, such as the cunning of sea water pump under harsh marine environment
Boots/swash plate, plunger/plunger bushing, latent device buoyancy adjustment assembly, mooring cable etc., the fretting wear of material, corrode and interact
Seriously govern efficiency and the reliability of deep sea equipment.Then, existing tribology theory not yet extends to field, deep-sea, and people lack
Weary tribological property to material, the particularly new material such as macromolecule, pottery in the water environment of deep-sea, the assembly of failure mechanism
Understanding.The land design experiences of friction pair is difficult to be suitable for big depth conditions high pressure low temperature environment, inappropriate theory may cause
The inefficacy that deep sea equipment critical movements is secondary, thus reduce the reliability of deep sea equipment.
Therefore, synchronize to carry out friction-wear test and dynamic corrosion test, explore material rubbing under extreme marine environment
Wiping abrasional behavior, rule and military service failure mechanism, from having urgent demand, but report the most both at home and abroad is temporarily without relevant complete
The research of the deep tribology in sea and the deep simulation in full sea friction test platform.
Accordingly, it would be desirable to be badly in need of carrying out the development work of " the deep simulation in full sea friction test platform ".Simulating ocean environment friction mill
Damaging testing machine and use high-pressure pump compression sea water, simulate Deep-sea high voltage in autoclave, test test specimen is placed in autoclave body, adds
Carry assembly, measurement assembly is positioned at outside autoclave body.Therefore, test force, loading force need the inside and outside accurate transfer of autoclave body with
Accurately measure.But, moving component superhigh pressure sealing on autoclave mostly is contact and seals, and contact seals axially rubbing of generation
Wiping power and moment of friction are difficult to from measurement data reject, and directly affect the certainty of measurement of test force, loading force.How to solve height
Means of press seals and test force, loading force accurate transfer between contradiction, be the key of deep-sea friction test platform design.
Summary of the invention
It is an object of the invention to provide a kind of full sea and deeply simulate the charging assembly of friction-wear test platform, it is intended to solve examination
Test power, contradiction between the transmission of loading force and high pressure sealing, it is achieved accurate inside and outside autoclave body of test force and loading force
Transmission and accurately measurement.
To achieve these goals, the invention provides a kind of full sea and deeply simulate the test force loading of friction-wear test platform
And measurement apparatus, for the test specimen in autoclave being applied test force and this test force being measured, including: test specimen adjusts
Seat, big bearing, straight pin, little bearing, stop sleeve, upper spring seat, axle sleeve, lower spring cup, measurement spring, drive shaft, spring
Decrement measures assembly；
Drive shaft upper axial is radially projecting becomes an erecting bed；Test specimen adjusts seat and is positioned at above erecting bed, test specimen
There is axial spacing in the upper surface of the lower surface and erecting bed that adjust seat；Big bearing, little bearing are respectively positioned on below erecting bed, little axle
Bearing sleeve is in the axis hole of big bearing；The moving-coil upper surface of big bearing contacts with erecting bed lower surface, the moving-coil upper surface of little bearing
And there is axial spacing between lower surface in erecting bed；
Straight pin has at least two, both pass through erecting bed and and erecting bed between there is larger gap so that the two does not connects
Touch, and be uniformly distributed along erecting bed circumference；Straight pin upper end is inserted in test specimen and adjusts seat lower end, and adjusting seat with test specimen is that interference is joined
Closing, straight pin lower end is fixed on the moving-coil upper surface of little bearing；The upper surface of little bearing and test specimen adjust between seat lower surface
Distance is more than erecting bed thickness；
Upper spring seat, measurement spring, lower spring cup are sequentially arranged at inside stop sleeve from top to bottom, measure spring upper and lower two
End abuts with upper spring seat and lower spring cup respectively；Stop sleeve top is provided with perforate, and upper spring seat upper surface is exposed in perforate
Place, the bottom of upper spring seat is limited in stop sleeve by the top of stop sleeve；
The circle of determining of big bearing is fixed on stop sleeve upper surface, and the circle of determining of little bearing is fixed on the upper surface of upper spring seat,
The opening diameter at stop sleeve top is more than the external diameter of little bearing；
The shaft portion of drive shaft sequentially passes through little bearing, upper spring seat, measurement spring, lower spring cup, axle from top to bottom
Set, and and little bearing, upper spring seat, measurement spring, lower spring cup between all there is gap, the shaft portion of drive shaft and axle sleeve
Inwall forms clearance seal, so that sea water leaks at clearance seal takes away fricative heat；
Decrement when spring-compressed measurement assembly is for measuring spring pressurized.
Further, spring-compressed measurement assembly includes micrometer nut, stress nut, piston rod, locking nut；Bottom
There is the part of accurate measurement screw thread for measuring screw rod, measure screw rod and threadeded by accurate measurement with micrometer nut；Locking
Nut sleeve is outside at piston rod and is coaxially disposed, and stress nut is connected by regular screw threads with piston rod；The upper surface of piston rod
Being connected on axle sleeve lower surface, drive shaft passes piston rod.
Further, also include fixing screw, adjust ball, test specimen bearing；
Test specimen bearing is movably mounted to test specimen by fixing screw and adjusts seat upper end, test specimen bearing and test specimen adjustment seat
Offering the ball recess for mounting and adjusting ball on interface, mounting and adjusting ball is installed in ball recess, and test specimen bearing can
To rotate around the centre of sphere adjusting ball.
Further, also include seal and radiating subassembly, seal and radiating subassembly include: locking nut, the first O,
Second O, returning pipe joint, piston rod, J-shaped sealing ring；
Locking nut is enclosed within axle sleeve and piston rod, and the upper surface of piston rod is connected on axle sleeve lower surface；First O
Being enclosed within the annular breach on J-type sealing ring top, J-type seal ring set is on axle sleeve and abuts locking nut upper surface；Locking screw
Female top is provided with external screw thread and docks for carrying out with autoclave installing；Locking nut radially offers connection locking nut and piston
The water return outlet in gap between bar, returning pipe joint is arranged on water return outlet, end face the second seal with O ring.
Further, piston rod radially having through flow hole, through flow hole is positioned at above water return outlet, connection locking nut with
The gap between gap and piston rod and drive shaft between piston rod；
Below water return outlet, labyrinth seal ring it is provided with between piston rod and drive shaft on piston rod inner cylinder face
Gap carries out axial seal；
Logical being positioned between locking nut and piston rod below water return outlet is provided with the 3rd O, locking nut and piston rod it
Between gap carry out movable sealing.
Further, drive shaft is the composite construction of stainless steel base surface spraying hard alloy, and axle sleeve is silicon nitride pottery
Ceramic material.
Further, the matrix of drive shaft is rustless steel 17-4PH, drive shaft surface material for spraying or cladding in matrix
The pottery on surface or hard alloy, axle sleeve is silicon nitride ceramic material.
The technique effect of the present invention has:
1. pilot strength measurement assembly and charging assembly are relatively independent, and measurement normal direction loading force is changed into height by measurement assembly
The displacement of pressure still external pelivimetry piston rod, eliminates frictional force, the moment of friction interference to measuring that high sealing produces, thus protects
The accurate measurement of card loading force；
2. test specimen below rotates simultaneously and moves axially, and its Power Component is positioned at autoclave homonymy, but is not total to
Same drive shaft, elongated drive shaft is used to be subjected only to driving moment；This homonymy, different axle drive structure than conventional friction testing stand
Heteropleural drives structure, had both reduced movable sealing quantity, and also ensure that the rigidity of drive shaft simultaneously, it is to avoid its compressive deformation connects with ancient piece of jade, round, flat and with a hole in its centre face
Touch, produce additional, affect loading force and measure with accurate in the accurate transfer that autoclave body is inside and outside；
3. stress nut constitutes stroke location with measuring screw rod end face, accurately ensures amount of spring compression, thus realizes loading
The accurate transfer of power and accurately measurement, stress nut separates with measuring screw rod, preferably ensures certainty of measurement；
4. drive drive shaft to form clearance seal with autoclave by silicon nitride ceramics liner, add with conventional friction testing stand
Load assembly is compared, and there is not contact and seals；Avoid friction effects test force and the measurement of loading force that high pressure sealing produces
Precision；Also can get rid of the sealing member irregular abrasion during assembly operating simultaneously and cause Fluctuation of Dynamic Friction, disturb loading force
Measurement；
5. rotating driveshaft uses composite structure, and stainless steel base is 17-4PH, and drive shaft surface material is spraying
Or cladding is in the pottery of matrix surface or hard alloy, makes drive shaft can bear high torque, has good tribology simultaneously
Performance；
6. the self adaptation regulation of mental activities assembly being arranged on rotating driveshaft, it is possible to ensure that upper and lower test specimen effectively contacts, and provide
All the time the loading force of contact surface it is perpendicular to.
Accompanying drawing explanation
Accompanying drawing 1 is that the test force of the present invention loads and an application example schematic diagram of measurement apparatus；
Accompanying drawing 2 is test force charging assembly and the cross-sectional schematic of measurement assembly of the present invention；
Accompanying drawing 3 is the sealing of the present invention, cooling assembly cross-sectional schematic；
Accompanying drawing 4 is the loading cylinder piston rod structure cross-sectional schematic of the present invention；
Accompanying drawing 5 is the spring-compressed measurement assembly cross-sectional schematic of the present invention.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, right
The present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, and
It is not used in the restriction present invention.If additionally, technical characteristic involved in each embodiment of invention described below
The conflict of not constituting each other just can be mutually combined.
Accompanying drawing 1 is the test force loading for the present invention and an application example schematic diagram of measurement apparatus, complete in this example
Sea deep simulation friction-wear test platform mainly includes autoclave 1.10, loads and measurement apparatus 1, radiating subassembly 2, amount of spring compression
Measure assembly 3, load cylinder 4, load cylinder 4 and there is piston rod 2.4.This friction-wear test platform is used for simulating deep-sea high-pressure environment,
Synchronization carries out material friction wear test and dynamic corrosion test.The Main Function of autoclave 1.10 is to provide test specimen and rubs
Deep-sea high-pressure environment needed for wear test, it is provided that high pressure dynamic corrosion test desired data acquisition component.Radiating subassembly 2 can carry
Walk overwhelming majority frictional heat, it is ensured that in autoclave, medium temperature meets actual abyssal temperature scope.Spring-compressed measurement group
Part 3 is changed into, by measuring normal force, the displacement measured outside autoclave, gets rid of the interference of additional friction force.Loading cylinder 4 can basis
Test demand, it is provided that and the normal direction loading force that Accommodation is on test specimen work surface.
Refer to Fig. 2, the test force of the deep simulation in the full sea friction-wear test platform of the present embodiment loads and measurement apparatus, bag
Include: test specimen adjusts seat 1.4, big bearing 1.5, straight pin 1.6, little bearing 1.7, stop sleeve 1.8, upper spring seat 1.9, axle sleeve
1.12, lower spring cup 1.13, measurement spring 1.14, drive shaft 1.15, spring-compressed measurement assembly.
Drive shaft 1.15 upper axial is radially projecting becomes an erecting bed 1.15.1；Test specimen adjusts seat 1.4 and is positioned at peace
Above dress platform 1.15.1, there is axial spacing in the upper surface of lower surface and erecting bed 1.15.1 that test specimen adjusts seat 1.4；Big bearing
1.5, little bearing 1.7 is respectively positioned on below erecting bed 1.15.1, and little bearing 1.7 is enclosed within the axis hole of big bearing 1.5；Big bearing 1.5
Moving-coil upper surface contact with erecting bed 1.15.1 lower surface, the moving-coil upper surface of little bearing 1.7 and erecting bed 1.15.1 lower end
Axial spacing is there is between face.
Straight pin 1.6 has at least two, both pass through erecting bed 1.15.1 and and erecting bed 1.15.1 between exist relatively big between
Gap is not so that the two contacts, and is uniformly distributed along erecting bed 1.15.1 circumference；Straight pin 1.6 upper end is inserted in test specimen and adjusts seat 1.4
Lower end, adjusting seat 1.4 with test specimen is interference fit, and straight pin 1.6 lower end is fixed on the moving-coil upper surface of little bearing 1.7；Little axle
Hold the distance between the upper surface of 1.7 and test specimen adjustment seat 1.4 lower surface more than erecting bed thickness.
Upper spring seat 1.9, measurement spring 1.14, lower spring cup 1.13 are sequentially arranged at stop sleeve 1.8 inside from top to bottom,
Measure spring about 1.14 two ends to abut with upper spring seat 1.9 and lower spring cup 1.13 respectively；Stop sleeve 1.8 top is provided with out
Hole, upper spring seat 1.9 upper surface is exposed at tapping, and the bottom of upper spring seat 1.9 is limited in by the top of stop sleeve 1.8 and props up
In support set cylinder 1.8.
The circle of determining of big bearing 1.5 is fixed on stop sleeve 1.8 upper surface, and the circle of determining of little bearing 1.7 is fixed on upper spring seat
The upper surface of 1.9, the opening diameter at stop sleeve 1.8 top is more than the external diameter of little bearing 1.7.
The shaft portion of drive shaft 1.15 sequentially passes through little bearing 1.7, upper spring seat 1.9 from top to bottom, measures spring
1.14, lower spring cup 1.13, axle sleeve 1.12, and with little bearing 1.7, upper spring seat 1.9, measure spring 1.14, lower spring cup
All there is gap between 1.13, the shaft portion of drive shaft 1.15 forms clearance seal with axle sleeve 1.12 inwall so that sea water from
At clearance seal, fricative heat is taken away in leakage.
Refer to Fig. 2, test specimen bearing 1.18 is movably mounted to test specimen by fixing screw 1.16 and adjusts seat 1.4 upper end,
Test specimen bearing 1.18 and test specimen adjust and offer the ball recess for mounting and adjusting ball 1.17 on the interface of seat 1.4, install
Adjusting ball 1.17 to be installed in ball recess, test specimen bearing 1.18 can rotate around the centre of sphere adjusting ball 1.17.
Refer to Fig. 3, seal and radiating subassembly includes: locking nut the 1.11, first O the 2.1, second O
2.3.1, returning pipe joint 2.3, piston rod 2.4, J-shaped sealing ring 2.6.
Locking nut 1.11 is enclosed within axle sleeve 1.12 and piston rod 2.4, and the upper surface of piston rod 2.4 is connected to axle sleeve 1.12
On lower surface；First O set 2.1 is on the annular breach on J-type sealing ring 2.6 top, and J-type sealing ring 2.6 is enclosed within axle sleeve
On 1.12 and abutting locking nut 1.11 upper surface；Locking nut 1.11 top is provided with external screw thread for installing with autoclave
Docking；Locking nut 1.11 radially offers the water return outlet in gap, return pipe between connection locking nut 1.11 and piston rod 2.4
Joint 2.3 is arranged on water return outlet, and end face seals with the second O 2.3.1.
Refer to Fig. 4, piston rod 2.4 radially have through flow hole 2.4.1, through flow hole 2.4.1 and is positioned at above water return outlet,
The gap between gap and piston rod and drive shaft between connection locking nut 1.11 and piston rod 2.4.Piston rod 2.4 inner circle
Below water return outlet, it is provided with labyrinth seal ring 2.4.2 on cylinder the gap between piston rod and drive shaft is carried out the closeest
Envelope.Logical being positioned at below water return outlet between locking nut 1.11 and piston rod 2.4 is provided with the 3rd O 2.5, locking nut 1.11 with
Gap between piston rod 2.4 carries out movable sealing.
Refer to Fig. 5, decrement when spring-compressed measurement assembly 3 is for measuring spring pressurized.Spring-compressed measures
Amount assembly 3 includes micrometer nut 3.1, stress nut 3.2, piston rod 2.4, locking nut 1.11；Bottom has accurate measurement spiral shell
The part of stricture of vagina, for measuring screw rod 1.11.1, is measured screw rod 1.11.1 and is threadeded by accurate measurement with micrometer nut 3.1；Locking
Nut 1.11 is enclosed within piston rod 2.4 outside and is coaxially disposed, and stress nut 3.2 is connected by regular screw threads with piston rod 2.4；Live
The upper surface of stopper rod 2.4 is connected on axle sleeve 1.12 lower surface, and drive shaft 1.15 is through piston rod 2.4.
Principle and the effect of the present invention are discussed in detail below against each accompanying drawing.
As it is shown in figure 1, each device and assembly are installed on autoclave.
Such as Fig. 2, self adaptation regulation of mental activities assembly is adjusted seat 1.4, test specimen bearing 1.18, epoxy resin cure part 1.1, examination by test specimen
Part 1.2, polyformaldehyde straight pin 1.3, adjustment ball 1.17 form, wherein 1.1,1.2,1.3 composition test specimen assembly.Test specimen assembly and examination
Part bearing 1.18 is connected by straight pin interference.Test specimen bearing 1.18 can rotate around the centre of sphere adjusting ball 1.17, it is ensured that upper and lower
Test specimen is fully contacted and provides the loading force being perpendicular to work surface.It is interference fit that straight pin 1.3 and test specimen adjust seat 1.4, with
There is larger gap between drive shaft 1.15, with little bearing 1.7 by being welded to connect, little bearing 1.7 and test specimen adjust seat 1.4 it
Spacing is more than erecting bed thickness, and this structure can guarantee that drive shaft, the most mobile, is not subject to additional friction force.Little bearing
1.7 determine circle is arranged on upper spring seat 1.9, and the circle of determining of big bearing 1.5 is arranged on stop sleeve 1.8 by interference fit.Axle
Set inner cylinder face forms clearance seal with drive shaft 1.15, and the Seawater that gap location is revealed passes through radiating subassembly (shown in accompanying drawing 3
Assembly) lead back water tank.
When carrying out friction-wear test, loading force transmittance process is as follows: loading cylinder provides thrust to promote axle sleeve 1.12 toward high
Moving in pressure still, compression spring 1.14, spring force passes to little bearing 1.7 by upper spring support 1.9, and thrust ball bearing is by axle
The test specimen acting on rotation to power adjusts seat 1.4, axial force is changed into eventually through self adaptation regulation of mental activities assembly and is perpendicular to all the time
The loading force of work surface.Spring force is equal to loading force, and spring-compressed measurement assembly (its structure is as shown in Figure 5) is positioned at high pressure
Outside kettle, indirectly obtaining loading force than measuring loading cylinder pressure, measurement is done by the frictional force eliminating high pressure sealing generation
Disturb；Driving moment transmittance process is as follows: servomotor drives drive shaft 1.15 to rotate by shaft coupling, torque rotational speed meter etc., drives
Moving axis drives test specimen to adjust seat 1.4 by straight pin 1.6 and rotates, and test specimen adjusts seat and drives self adaptation to adjust by fixing screw 1.16
Heart assembly rotates, and is finally completed test specimen and drives.Because all there is gap between drive shaft 1.15 and axle sleeve 1.12 and straight pin 1.6,
It is not directly contacted with, therefore test specimen friction square is equal to driving moment, equal to torque rotational speed meter institute measuring moment.High pressure sea water effect
The axial force produced at drive shaft 1.15 end face successively passes to autoclave 1.10 by big bearing 1.5, stop sleeve 1.8, little
All the time there is axial spacing between moving-coil end face and the drive shaft 1.15 of bearing 1.7, act directly on little than drive shaft 1.15
On bearing 1.7, spring rate is less, is conducive to improving loading force certainty of measurement.Elongated drive shaft 1.15 moment the most driven, no
By axial force, directly driving drive shaft 1.15 than loading cylinder, drive shaft stability is more preferable, will not be because of compressive deformation and other portions
Part contact produces additional.
Accompanying drawing 3 is for sealing, cooling down assembly, including drive shaft the 1.15, first O 2.1, axle sleeve the 1.12, second O
2.3.1, returning pipe joint 2.3, piston rod the 2.4, the 3rd O 2.5, J-shaped sealing ring 2.6, autoclave 1.10, locking nut
1.11.Drive shaft 1.15 and axle sleeve 1.12 are clearance seal, and drive shaft 1.15 uses composite structure, stainless steel-based surface
Coated with hard alloy, axle sleeve 1.12 uses silicon nitride ceramics to make, and this makes this have good wearability to friction pair and rub
Wipe and learn performance, simultaneously drive axle and can bear relatively large driving force square.The sea water that drive shaft and axle sleeve gap location are revealed enters piston rod
Behind gap between 2.4 and drive shaft 1.15, realized axially by the labyrinth seal ring 2.4.2 on piston rod 2.4 inner cylinder face
Seal.Have radial through-flow hole 2.4.1 on piston rod 2.4, reveal water and flow through through flow hole entrance piston rod 2.4 and locking nut
Gap between 1.11, locking nut lower end completes movable sealing by the 3rd O 2.5, reveals water and connects eventually through return pipe
2.3 lead back water tank.Cycle water energy takes away overwhelming majority frictional heat, and assembly radiating is good, and in autoclave, medium temperature meets
Actual abyssal environment temperature range.
Accompanying drawing 5 is spring-compressed measurement assembly, and spring-compressed measurement assembly includes drive shaft 1.15, micrometer nut
3.1, stress nut 3.2, piston rod 2.4, measurement screw rod 1.11.1 (position as shown in label 1.11.1, locking nut 1.11 bottom
Put), load cylinder 4；Measure screw rod 1.11.1 to be threadeded by accurate measurement with micrometer nut 3.1, its certainty of measurement such as Fig. 5 institute
Show, be the principle having used screw micrometer, directly the bottom of locking nut 1.11 is made measurement screw rod 1.11.1 as master
Chi, directly can will arrange and read the decrement of compression spring the most intuitively with micrometer nut 3.1 as vernier.Stress
Nut 3.2 is connected by regular screw threads with piston rod 2.4.
When needs provide normal direction loading force to test specimen, the present embodiment is 2000N, and the decrement of corresponding spring 1.14 is
20mm.First unclamping stress nut 3.2, turn micrometer nut 3.1 makes it be displaced outwardly 20mm, now rotates stress nut 3.2,
Make itself and micrometer nut 3.1 end contact, then rotate backward micrometer nut 3.1 and cause it to move to least significant end, start-up loading cylinder 4
Making piston rod 2.4 stretch out, until stress nut 3.2 and measurement screw rod 1.11.1 end contact position, now spring 1.14 is carried
The loading force of confession is 2000N.I.e. stress nut constitutes stroke location with measuring screw rod, thus ensures amount of spring compression, this survey
In amount assembly, stress nut 3.2 separates with measuring screw rod 3.1, effectively protects the certainty of measurement measuring screw rod.
As it will be easily appreciated by one skilled in the art that and the foregoing is only presently preferred embodiments of the present invention, not in order to
Limit the present invention, all any amendment, equivalent and improvement etc. made within the spirit and principles in the present invention, all should comprise
Within protection scope of the present invention.
Claims (7)
1. test force loading and a measurement apparatus for friction-wear test platform is simulated in full sea deeply, for the test specimen in autoclave
Apply test force and this test force is measured, it is characterised in that including: test specimen adjusts seat, big bearing, straight pin, little
Bearing, stop sleeve, upper spring seat, axle sleeve, lower spring cup, measurement spring, drive shaft, spring-compressed measurement assembly；
Drive shaft upper axial is radially projecting becomes an erecting bed；Test specimen adjusts seat and is positioned at above erecting bed, and test specimen adjusts
Axial spacing is there is in the lower surface of seat with the upper surface of erecting bed；Big bearing, little bearing are respectively positioned on below erecting bed, little bearing holder (housing, cover)
In the axis hole of big bearing；The moving-coil upper surface of big bearing contacts with erecting bed lower surface, the moving-coil upper surface of little bearing and peace
Axial spacing is there is in dress between platform lower surface；
Straight pin has at least two, both pass through erecting bed and with there is larger gap between erecting bed so that the two does not contacts, and
It is uniformly distributed along erecting bed circumference；Straight pin upper end is inserted in test specimen and adjusts seat lower end, and adjusting seat with test specimen is interference fit, cylinder
Pin lower end is fixed on the moving-coil upper surface of little bearing；The distance that the upper surface of little bearing and test specimen adjust between seat lower surface is more than
Erecting bed thickness；
Upper spring seat, measurement spring, lower spring cup are sequentially arranged at inside stop sleeve from top to bottom, measure the upper and lower two ends of spring and divide
Do not abut with upper spring seat and lower spring cup；Stop sleeve top is provided with perforate, and upper spring seat upper surface is exposed at tapping, on
The bottom of spring base is limited in stop sleeve by the top of stop sleeve；
The circle of determining of big bearing is fixed on stop sleeve upper surface, and the circle of determining of little bearing is fixed on the upper surface of upper spring seat, supports
The opening diameter at sleeve top is more than the external diameter of little bearing；
The shaft portion of drive shaft sequentially passes through little bearing, upper spring seat, measurement spring, lower spring cup, axle sleeve from top to bottom, and
And all there is gap between little bearing, upper spring seat, measurement spring, lower spring cup, the shaft portion of drive shaft and sleeve lining
Form clearance seal, so that sea water leaks at clearance seal takes away fricative heat；
Decrement when spring-compressed measurement assembly is for measuring spring pressurized.
A kind of full sea the most as claimed in claim 1 is deeply simulated the test force of friction-wear test platform and is loaded and measurement apparatus, its
Being characterised by, spring-compressed measurement assembly includes micrometer nut, stress nut, piston rod, locking nut；Bottom has precision
The part measuring screw thread is measurement screw rod, measures screw rod and is threadeded by accurate measurement with micrometer nut；Locking nut is enclosed within
Piston rod is outside and is coaxially disposed, and stress nut is connected by regular screw threads with piston rod；The upper surface of piston rod is connected to axle
On set lower surface, drive shaft passes piston rod.
A kind of full sea the most as claimed in claim 1 is deeply simulated the test force of friction-wear test platform and is loaded and measurement apparatus, its
It is characterised by, also includes fixing screw, adjust ball, test specimen bearing；
Test specimen bearing is movably mounted to test specimen by fixing screw and adjusts seat upper end, test specimen bearing and the docking of test specimen adjustment seat
Offering the ball recess for mounting and adjusting ball on face, mounting and adjusting ball is installed in ball recess, and test specimen bearing can be around
The centre of sphere adjusting ball rotates.
4. a kind of full sea as described in claims 1 to 3 any one deeply simulate friction-wear test platform test force load and
Measurement apparatus, it is characterised in that also include sealing and radiating subassembly, seal and radiating subassembly includes: locking nut, an O shape
Circle, the second O, returning pipe joint, piston rod, J-shaped sealing ring；
Locking nut is enclosed within axle sleeve and piston rod, and the upper surface of piston rod is connected on axle sleeve lower surface；First O is enclosed within
On the annular breach on J-type sealing ring top, J-type seal ring set is on axle sleeve and abuts locking nut upper surface；On locking nut
Portion is provided with external screw thread and docks for carrying out with autoclave installing；Locking nut radially offer connection locking nut and piston rod it
Between the water return outlet in gap, returning pipe joint is arranged on water return outlet, end face the second seal with O ring.
A kind of full sea the most as claimed in claim 4 is deeply simulated the test force of friction-wear test platform and is loaded and measurement apparatus, its
Being characterised by, piston rod radially has through flow hole, and through flow hole is positioned at above water return outlet, connection locking nut and piston rod it
Between gap and piston rod and drive shaft between gap；
Below water return outlet, it is provided with labyrinth seal ring on piston rod inner cylinder face the gap between piston rod and drive shaft is entered
Row axial seal；
Logical being positioned between locking nut and piston rod below water return outlet is provided with the 3rd O, between locking nut and piston rod
Gap carries out movable sealing.
A kind of full sea the most as claimed in claim 4 is deeply simulated the test force of friction-wear test platform and is loaded and measurement apparatus, its
Being characterised by, drive shaft is the composite construction of stainless steel base surface spraying hard alloy, and axle sleeve is silicon nitride ceramic material.
A kind of full sea the most as claimed in claim 4 is deeply simulated the test force of friction-wear test platform and is loaded and measurement apparatus, its
Being characterised by, the matrix of drive shaft is rustless steel 17-4PH, drive shaft surface material be spraying or cladding in the pottery of matrix surface
Porcelain or hard alloy, axle sleeve is silicon nitride ceramic material.
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| CN201610933937.3A CN106323789B (en) | 2016-10-31 | 2016-10-31 | A kind of load and measuring device of the deep simulation friction-wear test platform in full sea |
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| CN201610933937.3A CN106323789B (en) | 2016-10-31 | 2016-10-31 | A kind of load and measuring device of the deep simulation friction-wear test platform in full sea |
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| CN106323789B CN106323789B (en) | 2019-03-05 |
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| CN108593536A (en) * | 2018-04-22 | 2018-09-28 | 北京工业大学 | A kind of dynamic electric Chemical cover experimental rig |
| CN109374402A (en) * | 2018-12-19 | 2019-02-22 | 中国航空综合技术研究所 | A kind of bellows tension and compression testing device and test method |
| CN109966991A (en) * | 2017-12-27 | 2019-07-05 | 核动力运行研究所 | Accurate device for measuring force in a kind of autoclave |
| CN110426302A (en) * | 2019-06-28 | 2019-11-08 | 武汉船用机械有限责任公司 | Friction wear test tool |
| CN114563295A (en) * | 2022-03-07 | 2022-05-31 | 湖南科技大学 | Friction wear test bench under simulation seabed high pressure contains muddy environment of silt |
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| CN104280232A (en) * | 2014-10-16 | 2015-01-14 | 中国海洋大学 | High-back-pressure seawater hydraulic frictional wear test bed |
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Cited By (8)
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| CN109966991A (en) * | 2017-12-27 | 2019-07-05 | 核动力运行研究所 | Accurate device for measuring force in a kind of autoclave |
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| CN109374402A (en) * | 2018-12-19 | 2019-02-22 | 中国航空综合技术研究所 | A kind of bellows tension and compression testing device and test method |
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| CN114563295A (en) * | 2022-03-07 | 2022-05-31 | 湖南科技大学 | Friction wear test bench under simulation seabed high pressure contains muddy environment of silt |
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