CN202420961U - Pressure transmission solid pre-loading mechanism for high temperature triaxial test - Google Patents
Pressure transmission solid pre-loading mechanism for high temperature triaxial test Download PDFInfo
- Publication number
- CN202420961U CN202420961U CN2011205587748U CN201120558774U CN202420961U CN 202420961 U CN202420961 U CN 202420961U CN 2011205587748 U CN2011205587748 U CN 2011205587748U CN 201120558774 U CN201120558774 U CN 201120558774U CN 202420961 U CN202420961 U CN 202420961U
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- pressure head
- high temperature
- cylinder pressure
- head
- pressure chamber
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- 238000012360 testing method Methods 0.000 title claims abstract description 33
- 239000007787 solid Substances 0.000 title claims abstract description 27
- 230000005540 biological transmission Effects 0.000 title claims abstract description 21
- 238000004826 seaming Methods 0.000 claims description 14
- 230000006835 compression Effects 0.000 claims description 12
- 238000007906 compression Methods 0.000 claims description 12
- 238000009413 insulation Methods 0.000 abstract description 7
- 230000000149 penetrating effect Effects 0.000 abstract 3
- 239000000843 powder Substances 0.000 description 9
- 229910052903 pyrophyllite Inorganic materials 0.000 description 9
- 230000007423 decrease Effects 0.000 description 5
- 239000011435 rock Substances 0.000 description 5
- 239000006101 laboratory sample Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000004154 testing of material Methods 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
A pressure transmission solid pre-loading mechanism for high temperature triaxial test mainly comprises a high-temperature pressure chamber, a central cylinder pressure head, a lateral cylinder pressure head, a bottom cylinder pressure head, a shaft pressure head, a confining pressure sleeve, an upper pressure head and a lower pressure head. The bottom cylinder pressure head is located on the lower portion of the high-temperature pressure chamber, and the diameter of the bottom cylinder pressure head is slightly smaller than the inner diameter of the high-temperature pressure chamber, and the bottom cylinder pressure head is capable of penetrating through the high-temperature pressure chamber. The lateral cylinder pressure head and the central cylinder pressure head are located on the upper portion of the high-temperature pressure chamber, the outer diameter of the annular outer periphery of the lateral cylinder pressure head is slightly smaller than the inner diameter of the high-temperature pressure chamber, and the lateral cylinder pressure head is capable of penetrating through the high-temperature pressure chamber. The central cylinder pressure head is located inside the lateral cylinder pressure head and is capable of penetrating through the high-temperature pressure chamber. A test sample and a pressure transmission solid are supported by the lateral cylinder pressure head, the test sample is tightly pressed by the central cylinder pressure head, the pressure transmission solid is compacted under repeated loading of the lateral cylinder pressure head, and accordingly the speed of pre-loading the pressure transmission solid is increased. The pre-loaded pressure transmission solid is compacted and solidified, so that compressibility is reduced, and test precision is improved. The pressure transmission solid pre-loading mechanism for high temperature triaxial test is compact and simple in structure, easy in operation, convenient for pre-loading, and effective in insulation.
Description
Technical field
The utility model relates to a kind of high temperature triaxial test pressure transmission solid and pre-installs mechanism, is particularly useful for the triaxial test of HTHP.
Background technology
The development of rock mechanics is to be accompanied by the development of testing machine and independent with the mechanics of materials gradually all the time, and development, grows up and ripe.In early days; The common material testing machine is adopted in the test of rock mechanics fully; Afterwards, along with the succeeding in developing of various large-scale implosion test machines carried out a large amount of relevant experimental studies, disclosed the characteristic many rarely known by the people of rock, rock mass; Promoted the rock mechanics subject development greatly, become the new branch of science of material impact is arranged in the national economy.Confined pressure triaxial test machine is a kind of as large-scale implosion test machine, has brought into play irreplaceable effect, and its sample dimensions is big, functional diversities, but the prepackage process of its pressure transmission solid is but very difficult, especially under needs insulation and heat insulation situation.
Summary of the invention
Technical matters: the purpose of the utility model is the weak point that overcomes in the prior art, provides a kind of high temperature triaxial test pressure transmission solid simple in structure, that pre-install convenience, insulation and good heat-insulation effect to pre-install mechanism.
Technical scheme: the utility model high temperature triaxial test pressure transmission solid prepackage mechanism; It comprises high temperature pressure chamber, axial compression head, confined pressure cover, push-down head, seaming chuck; Described high temperature pressure chamber interior is provided with the cylindrical cavity that runs through the high temperature pressure chamber; The bottom of high temperature pressure chamber is positioned under the cylindrical cavity place, aperture and is provided with the end cylinder pressure head that is slidingly matched with cylindrical cavity, and end cylinder ram travel can run through whole high temperature pressure chamber; The top of high temperature pressure chamber is positioned on the cylindrical cavity of high temperature pressure chamber the place, aperture and is provided with the hollow side cylinder pressure head that is slidingly matched with cylindrical cavity, and the hollow diameters internal clearance of hollow side cylinder pressure head is provided with the central cylinder pressure head; Side, below, described high temperature pressure chamber has radially spacing hole.
Described hollow side cylinder pressure head is made up of annular pressure head, 4 fins, and the circumference of annular pressure head is provided with a plurality of guide grooves; The hollow diameters of described hollow side cylinder pressure head is 220mm; Have on the described confined pressure cover sidewall with high temperature pressure chamber lower side face diameter to the identical fixed orifice of spacing hole diameter.
Beneficial effect: owing to adopted technique scheme, the utility model has reduced personnel's labor capacity effectively, has improved pressure transmission solid prepackage speed, and is fine and close, solid through the pressure transmission solid of prepackage, reduced compressible amount, improved experimental precision greatly.Its compact conformation is simple, and is easy to operate, and prepackage convenience, insulation and good heat-insulation effect have practicality widely.
Description of drawings
Fig. 1 is the utility model side pressure prepackage mechanism structure synoptic diagram;
Fig. 2 is the side pressure cylinder structure synoptic diagram of the utility model;
Fig. 3 is A-A sectional structure chart of Fig. 2;
Fig. 4 is the confined pressure nested structure synoptic diagram of the utility model.
Among the figure: 1-high temperature pressure chamber; The 2-spacing hole; 3-axial compression head; 4-confined pressure cover; The 4--1 fixed orifice; The 5-push-down head; The 6-test specimen; The 7-seaming chuck; 8-hollow side cylinder pressure head; 8-1-side pressure head; The 8-2-fin; The 8-3-guide groove, the 9-pyrophyllite in powder; 10-salt; 11-central cylinder pressure head; Cylinder pressure head at the bottom of the 12-; 13-red copper radiating tube.
Embodiment
An embodiment to the utility model is further described below in conjunction with accompanying drawing:
As shown in Figure 1; The high temperature triaxial test pressure transmission solid prepackage mechanism of the utility model; Mainly constitute by high temperature pressure chamber 1, axial compression 3, confined pressure cover 4, push-down head 5, seaming chuck 7; 1 inside, described high temperature pressure chamber is provided with the cylindrical cavity that runs through high temperature pressure chamber 1, and the bottom of high temperature pressure chamber 1 is positioned under the cylindrical cavity place, aperture and is provided with the end cylinder pressure head 12 that is slidingly matched with cylindrical cavity, and end cylinder pressure head 12 strokes can run through whole high temperature pressure chamber 1; The top of high temperature pressure chamber 1 is positioned on 1 cylindrical cavity of high temperature pressure chamber the place, aperture and is provided with the hollow side cylinder pressure head 8 that is slidingly matched with cylindrical cavity; Hollow side cylinder pressure head 8 is made up of annular pressure head 8-1,4 fin 8-2; The circumference of annular pressure head 8-1 is provided with a plurality of guide groove 8-3; The hollow diameters of hollow side cylinder pressure head 8 is 220mm, and is shown in Figure 3 like Fig. 2.The hollow diameters internal clearance of hollow side cylinder pressure head 8 is provided with central cylinder pressure head 11; Side, 1 below, described high temperature pressure chamber has radially spacing hole 2.End cylinder pressure head 12 is positioned at 1 inner chamber bottom, high temperature pressure chamber, and its top is confined pressure cover 4, axial compression 3, push-down head 5, test specimen 6, seaming chuck 7 successively.In the space that axial compression 3, push-down head 5, test specimen 6, seaming chuck 7 and high temperature pressure chamber 1 are surrounded by reaching filling pyrophyllite in powder 9, salt 10, pyrophyllite in powder 9 successively down.Side pressure cylinder 8 is positioned at top, high temperature pressure chamber with central cylinder pressure head 11, and it can load from top to bottom, and the central cylinder pressure head is pushed down seaming chuck, side pressure cylinder compacting pressure transmission solid.Described confined pressure overlap have on 4 sidewalls with high temperature pressure chamber 1 lower side face diameter to the identical fixed orifice 4-1 of spacing hole 2 diameters, as shown in Figure 4.
The course of work: at first will reduce to place, aperture under 1 cylindrical cavity of high temperature pressure chamber, and on the cavity inner wall of high temperature pressure indoor 1, evenly smear Hmp grease, and then end cylinder pressure head 12 risen to 20cm place, below, aperture on 1 cylindrical cavity of high temperature pressure chamber at end cylinder pressure head 12; The confined pressure of inwardly packing into earlier cover 4, the axial compression 3 of in confined pressure cover 4, packing into, control end cylinder pressure head 12 descends; Make axial compression 3 upper surface parallel with high temperature pressure chamber 1 upper surface, push-down head 5 is placed in the axial compression 3, end cylinder pressure head 12 once more descends; Make push-down head 5 upper surfaces parallel, test specimen 6 is placed on the push-down head 5 with the upper surface of high temperature pressure chamber 1, and then the end cylinder pressure head 12 that descends; Make the upper surface of test specimen 6 parallel, afterwards, on test specimen 6, lay seaming chuck 7 with the upper surface of high temperature pressure chamber 1; Rising end cylinder pressure head 12, it is outside to make laboratory sample 6 all expose high temperature pressure chamber 1 cavity, decline central cylinder pressure head 11; And observe the movement position of central cylinder pressure head 11 through the gap location between the fin 8-2; When central cylinder pressure head 11 during, use slow decline central cylinder pressure head 11 instead, until being fixed test specimen 6 near seaming chuck 7; It is not rocked; In test specimen 6 outer wrap resistance alloys sheet and insulated thermal insulating layer, first rising central cylinder pressure head 11 rises to 20cm place, below, aperture on 1 cylindrical cavity of high temperature pressure chamber with end cylinder pressure head 12 again; Decline central cylinder pressure head 11; And observe the movement position of central cylinder pressure head 11 through the gap location between the fin 8-2; When central cylinder pressure head 11 during, use slow decline central cylinder pressure head 11 instead, until being fixed test specimen 6 near seaming chuck 7; In the space that high temperature pressure chamber 1 cavity and confined pressure cover 4, axial compression 3, push-down head 5, test specimen 6, seaming chuck 7 are surrounded, repeatedly insert pyrophyllite in powder 9; Whenever insert pyrophyllite in powder 9 and apply the pressure of 10MPa through side pressure cylinder 8, pressurize 30 minutes is full of the side pressure solid in the space that is surrounded; Make side cylinder pressure head 8 push down the side pressure solid; End cylinder pressure head 12, central cylinder pressure head 11, side pressure cylinder 8 link descending; The whole decline of side pressure solid that makes confined pressure cover 4, axial compression 3, push-down head 5, test specimen 6, seaming chuck 7 and installed; Abdicate the prepackage space, on the high temperature pressure chamber interior walls, be provided with and add the partiting thermal insulation material, repeatedly insert pyrophyllite in powder 9 in the space that overlap 4 in high temperature pressure chamber 1 cavity and confined pressure, axial compression 3, push-down head 5, test specimen 6, seaming chuck 7 is surrounded; Whenever insert pyrophyllite in powder 9 and apply the pressure of 10MPa, pressurize 30 minutes through side pressure cylinder 8; When 2cm place, side pressure solid filling to laboratory sample 6 below; Change pyrophyllite in powder 9 into salt 10 and continue to load, in the prepackage process, when the lower limb of side pressure solid filling to laboratory sample 6, middle part and coboundary; An armoured thermocouple is set respectively; After filling exceeds laboratory sample 6 coboundary 2cm, change salt 10 into pyrophyllite in powder 9 again and continue filling, until the coboundary that is filled to seaming chuck 7; End cylinder pressure head 12 dropped to the fixed orifice 4-1 that makes on the confined pressure cover 4 and align, penetrate spacing hole 2 and fixed orifice 14 from the outside, confined pressure cover 4 is fixed, avoid it to drop, the installation of pressure transmission solid with pin with spacing hole 2 on the high temperature pressure chamber 1.
Claims (1)
1. a high temperature triaxial test pressure transmission solid is pre-installed mechanism; It comprises high temperature pressure chamber (1), axial compression head (3), confined pressure cover (4), push-down head (5), seaming chuck (7); It is characterized in that: inside, described high temperature pressure chamber (1) is provided with the cylindrical cavity that runs through high temperature pressure chamber (1); The bottom of high temperature pressure chamber (1) is positioned under the cylindrical cavity place, aperture and is provided with the end cylinder pressure head (12) that is slidingly matched with cylindrical cavity, and end cylinder pressure head (12) stroke can run through whole high temperature pressure chamber (1); The top of high temperature pressure chamber (1) is positioned on the cylindrical cavity of high temperature pressure chamber (1) place, aperture and is provided with the hollow side cylinder pressure head (8) that is slidingly matched with cylindrical cavity, and the hollow diameters internal clearance of hollow side cylinder pressure head (8) is provided with central cylinder pressure head (11); Side, below, described high temperature pressure chamber (1) has radially spacing hole (2).
2. high temperature triaxial test pressure transmission solid according to claim 1 is pre-installed mechanism; It is characterized in that: described hollow side cylinder pressure head (8) is made up of annular pressure head (8-1), 4 fins (8-2), and the circumference of annular pressure head (8-1) is provided with a plurality of guide grooves (8-3).
3. high temperature triaxial test pressure transmission solid according to claim 1 and 2 is pre-installed mechanism, and it is characterized in that: the hollow diameters of described hollow side cylinder pressure head (8) is 220mm.
4. high temperature triaxial test pressure transmission solid according to claim 1 prepackage mechanism is characterized in that: have on described confined pressure cover (4) sidewall with high temperature pressure chamber (1) lower side face diameter to the identical fixed orifice (4-1) of spacing hole (2) diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205587748U CN202420961U (en) | 2011-12-28 | 2011-12-28 | Pressure transmission solid pre-loading mechanism for high temperature triaxial test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205587748U CN202420961U (en) | 2011-12-28 | 2011-12-28 | Pressure transmission solid pre-loading mechanism for high temperature triaxial test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202420961U true CN202420961U (en) | 2012-09-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205587748U Expired - Fee Related CN202420961U (en) | 2011-12-28 | 2011-12-28 | Pressure transmission solid pre-loading mechanism for high temperature triaxial test |
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| Country | Link |
|---|---|
| CN (1) | CN202420961U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102445382A (en) * | 2011-12-28 | 2012-05-09 | 中国矿业大学 | High-temperature triaxial test pressure transmitting solid preassembling mechanism and method |
| CN102928272A (en) * | 2012-10-24 | 2013-02-13 | 河南理工大学 | Briquette coal sample making tool and method |
-
2011
- 2011-12-28 CN CN2011205587748U patent/CN202420961U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102445382A (en) * | 2011-12-28 | 2012-05-09 | 中国矿业大学 | High-temperature triaxial test pressure transmitting solid preassembling mechanism and method |
| CN102928272A (en) * | 2012-10-24 | 2013-02-13 | 河南理工大学 | Briquette coal sample making tool and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20141228 |
|
| EXPY | Termination of patent right or utility model |