CN205941222U - Isolated triaxial test device - Google Patents
Isolated triaxial test device Download PDFInfo
- Publication number
- CN205941222U CN205941222U CN201620911670.3U CN201620911670U CN205941222U CN 205941222 U CN205941222 U CN 205941222U CN 201620911670 U CN201620911670 U CN 201620911670U CN 205941222 U CN205941222 U CN 205941222U
- Authority
- CN
- China
- Prior art keywords
- pressure
- sample
- pressure chamber
- separation sleeve
- transparent cover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses an isolated triaxial test device relates to one kind to the rock with thoughtlessly congeal the device that geomaterials carries out mechanical testing under the pressure state. The structure of this device mainly is: upper and lower part at the pressure chamber do not is connected with the upper and lower whole space that approximately constitutes, along the central line from the bottom up in whole space, has set gradually down pressure head, sample and has gone up the pressure head, pushes down the flexible pad of overhead cover to keep apart through the separation sleeve and the inner wall of pressure chamber, pressure device injects hydraulic pressure oil into to the space of pressure chamber and separation sleeve formation, paste foil gage and strain gauge connection in the sample side, the test is met an emergency, experiment axial pressure is applyed through last pressure head to the sample to the press. The utility model discloses a pressure oil need not relapse the oil charge oil extraction in being in an inclosed space, and the sample does not need the parcel yet, since simple structure, small, light in weight, and easy operation is convenient, has improved work efficiency greatly.
Description
Technical field
This utility model is related to a kind of dress that under pressure state, rock and concrete material are carried out with mechanical property test
Put, more particularly, to a kind of isolated Triaxial tester.
Background technology
The rock and concrete material mechanical property under the real bearing state in nature and engineering and this state
It can be the important indicator of geotechnical engineering design；The main method obtaining this index is exactly in the state of applying certain lateral pressure
Compressive strength test is carried out to sample, i.e. the upper described triaxial shear strength test of specialty.The usual way of three axle compression tests
It is that sample is placed in pressure chamber, to the hydraulic oil pressurization in pressure chamber, lateral pressure is formed to sample, then apply axial force
Mechanical property test is carried out to it.In the assay device of known structure, the pressure that sample is placed on full of hydraulic oil is indoor, sample
It is isolated material parcel in case hydraulic oil penetrates into and affects result of the test；Equipped with transparent cover, cylindrical is afterburning alive on pressure chamber top
Plug applies axial force through transparent cover hole to sample.The assay device of this structure has three big deficiencies：One is that each test will be filled
Oily oil extraction, two is to need tight parcel sample and not necessarily effective, and three is that the big weight of assay device volume is also big.Therefore, grasp
Make loaded down with trivial details time-consuming, intrinsic weakness that inefficiency is exactly this structure.
Utility model content
The purpose of this utility model is that the shortcoming and defect of the Triaxial tester overcoming said structure, provides one kind
Isolated Triaxial tester, neither needs repeatedly oil-filled oil extraction it is not required that parcel sample, small volume, lightweight simultaneously.
The purpose of this utility model is realized in：
Devise the pressure chamber of cylinder type, the separation sleeve that a kind of built-in soft elastomeric material is made, the two ends of separation sleeve
For lipped configuration, play the effect of sealing ring.When pressure chamber is oil-filled, separation sleeve by fluid be sealed in separation sleeve and pressure chamber it
Between, then be allowed to be connected with pressue device by setting pipe joint on hydraulic fluid port, prevent the indoor fluid of pressure from flowing out it is ensured that pressing
Power oil is in the space of an isolation, so that sample is separated with pressure oil all the time.
Specifically, this device includes forcing press, pressue device, hydraulic oil, pipe joint, foil gauge and deformeter；
It is provided with seaming chuck, upper transparent cover, pressure chamber, plug, plug seat, separation sleeve, sample, lower transparent cover, push-down head and bullet
Property pad；
Its position and annexation are：
It is connected to upper and lower transparent cover in the top and the bottom of pressure chamber and constitutes an overall space, along the center of overall space
Line from top to bottom, is disposed with push-down head, sample and seaming chuck, push-down head is cased with cushion, and passes through separation sleeve and pressure
The inwall isolation of power room；
2 screwed holes are provided with the side wall of pressure chamber, stifled equipped with 1 plug seat and 1 on one of screwed hole
Head；Another screwed hole passes through pipe joint and pressue device connects, the space injection hydraulic oil that pressure chamber and separation sleeve are formed；
It is pasted onto the foil gauge of sample side and deformeter connects, test strain；
Forcing press passes through seaming chuck and applies experiment axial compressive force namely normal pressure to sample.
Using method：
When specifically used, first separation sleeve is loaded in pressure chamber, then the two ends upper transparent cover and lower transparent cover being attached to pressure chamber
And tighten, prevent from racking separation sleeve during pressure rise；Then the sample posting foil gauge is placed on push-down head, connects and lead
Line, puts into together in pressure chamber, places into seaming chuck；By pipe joint to oil-filled in oil pocket, plug of screwing on after being full of, now will
Wire is connected with deformeter it is possible to start to test.
This utility model has following advantages and good effect：
Pressure oil is in it is not necessary to oil-filled oil extraction repeatedly in an airtight space, and sample is also without parcel；Due to knot
Structure is simple, small volume, lightweight, simple to operation, substantially increases work efficiency.
Brief description
Fig. 1 is structural representation of the present utility model.
In figure：
1 seaming chuck；
Transparent cover on 2；
3 pressure chamberes；
4 plugs；
5 plug seats；
6 separation sleeves；
7 samples；
8 times transparent covers；
9 push-down heads；
10 cushions；
A forcing press, B pressue device, C hydraulic oil, D pipe joint, E foil gauge, F deformeter.
Specific embodiment
Describe in detail with reference to the accompanying drawings and examples：
First, overall
As Fig. 1, this device includes forcing press A, pressue device B, hydraulic oil C, pipe joint D, foil gauge E and deformeter F；
Be provided with seaming chuck 1, upper transparent cover 2, pressure chamber 3, plug 4, plug seat 5, separation sleeve 6, sample 7, lower transparent cover 8, under
Pressure head 9 and cushion 10；
Its position and annexation are：
It is connected to upper and lower transparent cover 2,8 in the top and the bottom of pressure chamber 3 and constitutes an overall space, along overall space
Centrage from top to bottom, is disposed with push-down head 9, sample 7 and seaming chuck 1, push-down head 9 is cased with cushion 10, and passes through
The inwall isolation of separation sleeve 6 and pressure chamber 3；
2 screwed holes are provided with the side wall of pressure chamber 3, equipped with 1 plug seat 5 and 1 on one of screwed hole
Plug 4；Another screwed hole passes through pipe joint D and pressue device B and connects, the space injection that pressure chamber 3 and separation sleeve 6 are formed
Hydraulic oil C；
The foil gauge E and deformeter F that are pasted onto sample 7 side connect, test stress；
Forcing press A passes through seaming chuck 1 and applies experiment axial compressive force namely normal pressure to sample 7.
2nd, functional part
1st, seaming chuck 1
Seaming chuck 1 is a kind of cylinder, and diameter is identical with sample 7, its grinding two end surfaces.
A part for seaming chuck 1 is stretched in separation sleeve 6 and is fitted tightly with sample 7, when having pressure in separation sleeve 6, its energy
Ensure that this pressure is only applied to the side of sample 7 as lateral pressure；The pilot hole with upper transparent cover 2 for one section of the centre of seaming chuck 1
It is in clearance fit state, it both can relatively have been gone up transparent cover 2 and slide, do not have excessive gap it is ensured that flexible material system again
The separation sleeve 6 becoming will not be pressure extruded gap and destroy；Transparent cover 2 is stretched out in the upper end of seaming chuck 1, and the length stretched out is more than examination
Deformation after sample 7 stress, that is, ensure that seaming chuck 1 stretches out outside transparent cover 2 all the time, it is applied to sample 7 for transmitting forcing press A
Axial compressive force（Normal pressure）.
2nd, upper transparent cover 2
Upper transparent cover 2 carries the helicitic texture being adapted to pressure chamber 3 top, is screwed on pressure chamber 3；
Upper transparent cover 2 and lower transparent cover 8 constitute a sky closed together with pressure chamber 3, seaming chuck 1, sample 7, push-down head 9
Between, separation sleeve 6 is enclosed in this space, so that hydraulic oil C is in the confined air between pressure chamber 3 and separation sleeve 6 all the time
Interior, when the hydraulic oil C in separation sleeve 6 has pressure, can guarantee that hydraulic oil C does not leak out；Guiding is had in upper transparent cover 2
Hole, pilot hole and seaming chuck 1 are in clearance fit state it is ensured that seaming chuck 1 slides along pilot hole, and make that sample 7 is subject to is reason
The axial force thought.
3rd, pressure chamber 3
Pressure chamber 3 be a kind of with separation sleeve 6 height identical cylinder, be provided with and upper transparent cover 2 and lower transparent cover 8 at two ends
The external screw thread of female thread adaptation, is provided with 2 screwed holes on the wall of side；
The inwall of pressure chamber 3 is fitted with the lip type close structure at separation sleeve 6 two ends, thus playing the effect of sealing；Pressure
Room 3 two ends are external thread structure, are adapted to the female thread of upper transparent cover 2 and lower transparent cover 8, upper transparent cover 2 and lower transparent cover 8 are screwed in pressure chamber
3 above and below；2 screwed holes are had on the side wall of pressure chamber 3, equipped with plug seat 5 on a screwed hole, for oil-filled when
Aerofluxuss；Another screwed hole is used for oil-filled and pressurization, can fill different types of pipe joint as needed and by oil pipe and add
Pressure device is connected；Pressure chamber 3 is used for accommodating separation sleeve 6, bears pressure in process of the test.
4th, plug 4
Plug 4 is screw-like structure, and end has groove, and groove is built with O-ring seal；
When needing to separation sleeve 6 internal-filling liquid force feed C, back out plug 4, the air in set is discharged by plug seat 5；Oil-filled
After the completion of, plug 4 of screwing on, O-ring seal plays sealing function it is ensured that hydraulic fluid leak will not occur under pressure.
5th, plug seat 5
Plug seat 5 one end is external thread structure, is screwed on the screwed hole of pressure chamber 3；The other end is female thread structure, and stifled
4 external screw thread adaptation, makes plug 4 can be screwed on plug seat 5.
The effect of plug seat 5 is exactly to provide an installing space for plug 4, and there is a through hole at its center, when less than dress
Can be with aerofluxuss during plug 4, after plug 4 of screwing on, this hole is just enclosed it is ensured that pressure chamber 3 is in closed state.
6th, separation sleeve 6
Separation sleeve 6 is the annulus sealing ring that a kind of two ends are lip type structure, by the elastomeric material system of the softness of rubber one class
Become；The two ends of separation sleeve 6 are added by two lip-shaped sealed rings similar to the lip-shaped sealed ring it is also possible to regard as of hydraulic packing
Between coupling part constitute.
This structure makes the hydraulic oil C entering between pressure chamber 3 and separation sleeve 6 be in closed state；When hydraulic oil does not have
When having pressure, the elastic packing relying on separation sleeve 6 lip is it is ensured that hydraulic oil will not leak；When there being pressure, pressure is by lip pressure
Tightly on the inwall of pressure chamber, the more big then sealing effectiveness of pressure is better.
Because separation sleeve 6 is flexible, the oil pressure applying during test is fully transmitted to as lateral pressure and is wrapped by it
Sample 7 on；And after laying down pressure, separation sleeve 6 relies on natural resiliency to recover ortho states, the sample 7 after test just can be easily
Take out, then place into new sample 7；In the process, hydraulic oil C is in closed state all the time, eliminates constantly oil-filled
The process of oil extraction.
7th, sample 7
Sample 7 is tested person main body, is shaped as cylinder.
Determine that its draw ratio is 2 according to national standard：1, in the allowed band of GB, two ends polish diameter, seaming chuck 1
All it is consistent with sample 7 with the diameter of push-down head 9 and the internal diameter of separation sleeve 6；During test, sample 7 side surface posts on request
Foil gauge E, wire is connected on deformeter F along the wire guide extraction of push-down head 8.
8th, lower transparent cover 8
Lower transparent cover 8 is as the structure of upper transparent cover 2.
9th, push-down head 9
Push-down head 9 is stepped cylindrical, and upper diameter is identical with sample 7, and lower diameter is slightly larger, above puts cushion 10,
For supporting pressure chamber 3 so as to will not gliding but having certain cushion space；The two ends of push-down head 9 polish, and are used for bearing pressure
Machine A is applied to the axial compressive force of sample 7；A part for push-down head 9 is stretched in separation sleeve 6 and is fitted tightly with sample 7, works as separation sleeve
When having pressure in 6, it is ensured that this pressure is only applied to the side of sample 7 as lateral pressure；One section of the centre of push-down head 9 with
The pilot hole of lower transparent cover 8 is in clearance fit state, and it both can descend transparent cover 8 to slide relatively, do not have excessive gap again, permissible
Ensure that the separation sleeve 6 that flexible material is made will not be pressure extruded gap and destroy；Wire guide is had on the side wall of push-down head 9,
The pressure head body that this hole deviation wears pressure head 9 leads directly to bottom, and after sample 7 posts foil gauge E, the wire of foil gauge E leads to along this hole
Deformeter F.
10th, cushion 10
Cushion 10 is the O-ring that a rubber is made, and it is enclosed within the step surface of push-down head 9, supports pressure chamber 3,
So that pressure chamber 3 will not be glided, can have certain cushioning effect simultaneously again.
Claims (3)
1. a kind of isolated Triaxial tester, including forcing press（A）, pressue device（B）, hydraulic oil（C）, pipe joint（D）, should
Become piece（E）And deformeter（F）；
It is provided with seaming chuck（1）, upper transparent cover（2）, pressure chamber（3）, plug（4）, plug seat（5）, separation sleeve（6）, sample（7）、
Lower transparent cover（8）, push-down head（9）And cushion（10）；
Its position and annexation are：
In pressure chamber（3）Top and the bottom be connected to upper and lower transparent cover（2、8）Constitute an overall space, along overall space
Centrage from top to bottom, is disposed with push-down head（9）, sample（7）And seaming chuck（1）, push-down head（9）On be cased with cushion
（10）, and pass through separation sleeve（6）With pressure chamber（3）Inwall isolation；
In pressure chamber（3）Side wall on be provided with 2 screwed holes, equipped with 1 plug seat on one of screwed hole（5）With 1
Plug（4）；Another screwed hole passes through pipe joint（D）And pressue device（B）Connect, to pressure chamber（3）And separation sleeve（6）Formed
Space injection hydraulic oil（C）And pressurization；
It is pasted onto sample（7）The foil gauge of side（E）And deformeter（F）Connect, test strain；
Forcing press（A）By seaming chuck（1）To sample（7）Apply experiment axial compressive force namely normal pressure.
2. a kind of isolated Triaxial tester as described in claim 1 it is characterised in that：
Described pressure chamber（3）It is a kind of and separation sleeve（6）Height identical cylinder, is provided with and upper transparent cover at two ends（2）With
Lower transparent cover（8）Female thread adaptation external screw thread, 2 screwed holes are provided with the wall of side.
3. a kind of isolated Triaxial tester as described in claim 1 it is characterised in that：
Described separation sleeve（6）It is the annulus sealing ring that a kind of two ends are lip type structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620911670.3U CN205941222U (en) | 2016-08-22 | 2016-08-22 | Isolated triaxial test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620911670.3U CN205941222U (en) | 2016-08-22 | 2016-08-22 | Isolated triaxial test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205941222U true CN205941222U (en) | 2017-02-08 |
Family
ID=57948588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620911670.3U Active CN205941222U (en) | 2016-08-22 | 2016-08-22 | Isolated triaxial test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205941222U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106153469A (en) * | 2016-08-22 | 2016-11-23 | 中国科学院武汉岩土力学研究所 | Isolated Triaxial tester |
-
2016
- 2016-08-22 CN CN201620911670.3U patent/CN205941222U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106153469A (en) * | 2016-08-22 | 2016-11-23 | 中国科学院武汉岩土力学研究所 | Isolated Triaxial tester |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206410979U (en) | Core holder for simulating hydraulic fracturing and permeability test | |
| CN106153469A (en) | Isolated Triaxial tester | |
| CN102564702B (en) | Device and system for testing packer in formation tester | |
| CN202110016U (en) | Underwater separate connector testing device | |
| CN110630248B (en) | Cementing quality evaluation device and method for well cementation two-interface | |
| CN110308052B (en) | Hollow rock sample radial seepage test device and test method based on acoustic emission technology | |
| CN205941222U (en) | Isolated triaxial test device | |
| CN201963249U (en) | Water injection packer capable of being used for washing well | |
| CN204789164U (en) | Testable rock coefficient of heat conductivity's conventional triaxial test device | |
| CN105952409A (en) | Hydraulic wellhead polished rod stuffing box self-tightening device | |
| CN105092383B (en) | Packing element sets visual test device | |
| CN202153181U (en) | Packer testing device | |
| CN102252793B (en) | Testing device of underwater separation connector | |
| CN2929163Y (en) | Hydropower compression type packer | |
| CN203688163U (en) | Leakage-testing sealing device of engine cylinder cover VVT valve hole | |
| CN205778681U (en) | A kind of fluid pressure type wellhead polish rod packing box Self tightening device | |
| CN202330175U (en) | Reciprocating oil seal pressure-resistant detection device | |
| CN207007659U (en) | A kind of axle servo seepage apparatus of coal seam containing gas dynamic disturbances fluid structurecoupling three | |
| CN206847858U (en) | A kind of device using closure pipe end endoporus leak test | |
| CN206756545U (en) | A kind of artificial core clamps evaluating apparatus | |
| CN202039838U (en) | Plug water separator with multiple conical indenter sections | |
| CN206772563U (en) | downhole tool oil immersion simulation test device | |
| CN105372135B (en) | High-temperature packer rubber cylinder test detection tool | |
| CN201106434Y (en) | Self-checking packer | |
| CN203479645U (en) | Torsion-resistant test shaft |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |