CN103439198A - Shear creep test device for soft coal and rock material - Google Patents
Shear creep test device for soft coal and rock material Download PDFInfo
- Publication number
- CN103439198A CN103439198A CN201310401744XA CN201310401744A CN103439198A CN 103439198 A CN103439198 A CN 103439198A CN 201310401744X A CN201310401744X A CN 201310401744XA CN 201310401744 A CN201310401744 A CN 201310401744A CN 103439198 A CN103439198 A CN 103439198A
- Authority
- CN
- China
- Prior art keywords
- load
- posting
- transfer mechanism
- test unit
- load transfer
- 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.)
- Granted
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 32
- 239000003245 coal Substances 0.000 title claims abstract description 24
- 239000000463 material Substances 0.000 title claims abstract description 23
- 239000011435 rock Substances 0.000 title abstract description 4
- 238000012544 monitoring process Methods 0.000 claims abstract description 22
- 238000012546 transfer Methods 0.000 claims description 23
- 230000005540 biological transmission Effects 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 230000000295 complement effect Effects 0.000 claims description 2
- 238000013480 data collection Methods 0.000 claims description 2
- 238000001179 sorption measurement Methods 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 238000010008 shearing Methods 0.000 abstract description 2
- 238000011160 research Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a shear creep test device for a soft coal and rock material, comprising a loading mechanism, a load transmitting mechanism, a dead load mechanism, a monitoring system and a rack, wherein the loading mechanism and the load transmitting mechanism are in contact through concave-convex surfaces, rigid cylinders are arranged between the load transmitting mechanism and the dead load mechanism, the monitoring system is fixed above the load transmitting mechanism and is connected with a dynamic data acquisition system, and the rack supports the dead load mechanism and the loading mechanism. The test device has the characteristics of light structure, stable load, high data monitoring precision and the like, and can be used for experimental study of mechanical properties of shearing, shear creep and the like of the soft coal and rock material from macroscopic and microcosmic aspects respectively.
Description
Technical field
The present invention relates to weak coal and rock shear creep test technical field of measurement and test, relate in particular to a kind of weak coal petrography material shear creep test device.
Background technology
The variation that internal microstructure is out of shape, is reached in the grand mesomechanics characteristic of coal petrography material and its grand thin sight occurred under external force is closely related.Shearing and the research of shear creep attribute testing are exactly to study the impact that its internal microstructure growth in the shear failure process of coal petrography material, development, yardstick expansion, change of properties etc. produce the coal petrography material damage.The loading system of existing coal petrography class material shear creep attribute testing equipment relies on the external pressure machine, has the shortcomings such as creep loading is unstable, complex structure, precision deficiency, makes very inconvenience of experimental study.In addition, existing coal petrography class material shear creep test equipment can not be realized integrated, the dynamically thin sight monitoring in real time to internal structure change in its creep process, be difficult to monitor the Progressive failure process of coal petrography class material, can't be from mechanical characteristic Evolution grand, that carefully see two angles while Study on Coal rock-like materials.
Summary of the invention
The technical matters that the present invention solves is to make up the deficiency of existing testing equipment, the simplified apparatus structure, realizes realizing the combination of grand, thin sight research dynamic Real-Time Monitoring, and improve the practicality of testing equipment.
In order to overcome the above problems, design of the present invention is:
A kind of weak coal petrography material shear creep test device, mainly comprise load maintainer, load transfer mechanism, dead load mechanism, mechanism for monitoring and frame.Described load maintainer, load transfer mechanism, dead load mechanism are arranged in frame, and load transfer mechanism is assemblied on the load maintainer of bottom.Dead load mechanism is positioned on load transfer mechanism.Described mechanism for monitoring is fixed on load transfer mechanism.
A kind of weak coal petrography material shear creep test device of the present invention, realized system independent loads, unloading by load maintainer; By dead load mechanism, the suffered load of test specimen can realize relatively constant under small deformation; Small-sized microcosmic monitoring arrangement in mechanism for monitoring has been realized coal petrography class material at the record that is subject to micro-crack evolution situation under shear-type load; By high-precision digital-display measurement mechanism and the data acquisition software of establishment voluntarily, realized the mobilism monitoring of coal petrography class material detrusion; This test unit can be realized the laboratory examination research of coal petrography class material shear creep characteristic, is a kind of simple in structure, the experimental facilities of high precision, high reliability.
The accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment of the present invention;
Fig. 2 is the left view (removal frame) of Fig. 1.
Mark in figure:
1, load maintainer; 2, posting bed die; 3, posting mold; 4, circle rolls part; 5, load transfer mechanism; 6, pressure transmission plate; 7, constant voltage ring; 8, web joint; 9, bolt; 10, dead load mechanism; 11, fixed support; 12, digital display measuring equipment; 13, microcosmic supervising device; 14, mechanism for monitoring; 15, bearing bottom plate; 16, pressure-bearing top board; 17, bracing frame; 18, nut; 19, sounding rod; 20, magnet base.
Embodiment
When considered in conjunction with the accompanying drawings, by the detailed description with reference to following, can be more complete understand the present invention and more easily learn wherein many other advantages, but accompanying drawing described herein is used to provide a further understanding of the present invention, form a part of the present invention, schematic description and description of the present invention the present invention does not form inappropriate limitation of the present invention for explaining.
For making above-mentioned purpose, feature and advantage can be more obvious, understandable, below in conjunction with Fig. 1-2 and embodiment, the present invention is further detailed explanation:
The present invention is a kind of weak coal petrography material shear creep test device, mainly comprises load maintainer 1, load transfer mechanism 5, dead load mechanism 10, mechanism for monitoring 14 and frame.Described load maintainer 1, load transfer mechanism 5, dead load mechanism 10 are arranged in frame.Load transfer mechanism 5 is assemblied on the load maintainer 1 of bottom.Dead load mechanism 10 is positioned on load transfer mechanism 5, between be provided with the rigidity circle and roll part 4.Described mechanism for monitoring 14 is fixed on load transfer mechanism 5.
Described frame is comprised of the bracing frame 17 of both sides, the pressure-bearing top board 16 that is fixedly mounted on the bearing bottom plate 15 of bracing frame 17 bottoms and is assemblied in bracing frame 17 tops; Pressure-bearing top board 16 is fixed tightly on bracing frame 17 by nut 18.
Described load maintainer 1 is placed in the centre on bearing bottom plate 15.As a kind of preferred, load maintainer 1 is the high precision numerical control hydraulic loading device.There is a projection at load maintainer 1 upper surface center.
Described load transfer mechanism 5 comprises posting bed die 2, posting mold 3; Posting bed die 2 lower surface centers be provided with one with load maintainer 1 on the groove that is complementary of projection; Load maintainer 1 with posting bed die 2 by the male and fomale(M&F) contact free, and with bearing bottom plate 15 center-aligned.Described posting mold 3 is the oblique angle mould with fixed angle with described posting bed die 2, between the oblique angle mould of posting bed die 2 and posting mold 3, lays subjects.
Described dead load mechanism 10 comprises constant voltage ring 7, pressure transmission plate 6 and web joint 8.Web joint 8 is fastening by constant voltage ring 7 bottoms by bolt 9 with pressure transmission plate 6, and constant voltage ring 7 tops are threaded connection on pressure-bearing top board 16 up.As a kind of preferred, described constant voltage ring is elastic circular ring.Circle rolls part 4 and freely is emitted on posting mold 3 upper surfaces, and with pressure transmission plate 6 contact frees.As a kind of preferred, it is steel roller that described rigidity circle rolls part.
Described mechanism for monitoring 14 comprises digital display measuring equipment 12 and microcosmic supervising device 13, and sounding rod 19 is installed on digital display measuring equipment 12.Mechanism for monitoring 14 is fixed on load transfer mechanism 5 by stationary installation.As a kind of preferred, described stationary installation forms a multi-function magnetic seat support by fixed support 11 and magnet base 20.Fixed support 11 relies on magnet base 20 sorptions on posting bed die 2 surfaces of load transfer mechanism 5, and by fixture, is connected with microcosmic supervising device 13 with digital display measuring equipment 12.During work, digital display measuring equipment 12, by sounding rod 19 and posting mold 3 Surface Contacts, is measured the macroscopic deformation amount of subjects, automatic data collection.Fine sight supervising device 13 is arranged in and subjects equal height level by fixed support 11, from the real-time dynamic surveillance experimental subjects of thin sight angle internal crack evolution properties.The variable quantity that digital display measuring equipment 12 and microcosmic supervising device 13 detect, (do not belong to content of the present invention, do not show in figure) is connected with dynamic measuring system and computer.
During a kind of weak coal petrography material shear creep test device specific works that the present invention relates to, the coal petrography material test specimen is placed between posting bed die 2 and posting mold 3, suitably rising load maintainer 1, make load maintainer 1 and posting bed die 2 close contacts, posting bed die 2 and posting mold 3 and coal petrography material test specimen close contact, circle roll part 4 and posting mold 3 and pressure transmission plate 6 close contacts; By regulating fixed support 11, make the sounding rod 19 of digital display measuring equipment 12 vertical, the other end contacts with posting mold 3.By regulating fixed support 11, make fine sight supervising device 13 in correct position, monitoring experiment object internal crack dynamic evolution simultaneously.By the load maintainer 1 that raises gradually, increase the suffered shear-type load of test specimen, the deflection of the test specimen of dynamic monitoring simultaneously and the dynamic evolution in test specimen crack, realize the dynamic monitoring research of coal petrography class material shear failure characteristic.
As mentioned above, embodiments of the invention are explained, but, as long as not breaking away from fact inventive point of the present invention and effect can have a lot of distortion, this will be readily apparent to persons skilled in the art.Therefore, within such variation also all is included in protection scope of the present invention.
Claims (9)
1. a weak coal petrography material shear creep test device, is characterized in that: mainly comprise load maintainer, load transfer mechanism, dead load mechanism, mechanism for monitoring and frame; Described load maintainer, load transfer mechanism, dead load mechanism are arranged in frame, and load transfer mechanism is assemblied on the load maintainer of bottom; Dead load mechanism is positioned on load transfer mechanism; Described mechanism for monitoring is fixed on load transfer mechanism.
2. test unit according to claim 1 is characterized in that: described frame is comprised of the bracing frame of both sides, the pressure-bearing top board that is fixedly mounted on the bearing bottom plate of bracing frame bottom and is assemblied in the bracing frame top; The pressure-bearing top board is fixed tightly on bracing frame by nut.
3. test unit according to claim 2, it is characterized in that: described load maintainer is the numerical control hydraulic charger; Load maintainer is placed in the centre on bearing bottom plate, at load maintainer upper surface center, has a projection.
4. test unit according to claim 3, it is characterized in that: described load transfer mechanism comprises posting bed die, posting mold; Posting bed die lower surface center be provided with one with load maintainer on the groove that is complementary of projection; Load maintainer and posting bed die be by the male and fomale(M&F) contact free, and with the bearing bottom plate center-aligned; Described posting mold and described posting bed die are the oblique angle mould with fixed angle; Lay subjects between the oblique angle mould of posting bed die and posting mold.
5. test unit according to claim 1 and 2 is characterized in that: described dead load mechanism comprises constant voltage ring, pressure transmission plate and web joint; Web joint and pressure transmission plate are fastening by constant voltage ring bottom by bolt, and constant voltage ring top is threaded connection on pressure-bearing top board up; Described constant voltage ring is elastic circular ring.
6. according to the described test unit of claim 1 or 4, it is characterized in that: be provided with the rigidity circle and roll part between dead load mechanism and load transfer mechanism; Described rigidity circle rolls part and freely is emitted on posting mold upper surface, and with pressure transmission plate contact free.
7. test unit according to claim 6, it is characterized in that: it is steel roller that described circle rolls part.
8. according to the described test unit of claim 1 or 4, it is characterized in that: described mechanism for monitoring comprises digital display measuring equipment and microcosmic supervising device, and mechanism for monitoring is fixed on load transfer mechanism by stationary installation; Sounding rod is installed on digital display measuring equipment; Described stationary installation forms a multi-function magnetic seat support by fixed support and magnet base; Fixed support relies on the posting bottom mold surface of magnet base sorption at load transfer mechanism, and by fixture, is connected with the microcosmic supervising device with digital display measuring equipment.
9. test unit according to claim 8, it is characterized in that: during work, described digital display measuring equipment contacts with the posting top mold surface by sounding rod, measures the macroscopic deformation amount of subjects, automatic data collection; Fine sight supervising device is arranged in and subjects equal height level by fixed support, from the real-time dynamic surveillance experimental subjects of thin sight angle internal crack evolution properties; The variable quantity that digital display measuring equipment and microcosmic supervising device detect, be connected with dynamic measuring system and computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310401744.XA CN103439198B (en) | 2013-09-06 | 2013-09-06 | A kind of weak coal petrography material shear creep test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310401744.XA CN103439198B (en) | 2013-09-06 | 2013-09-06 | A kind of weak coal petrography material shear creep test device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103439198A true CN103439198A (en) | 2013-12-11 |
| CN103439198B CN103439198B (en) | 2016-02-17 |
Family
ID=49692898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310401744.XA Expired - Fee Related CN103439198B (en) | 2013-09-06 | 2013-09-06 | A kind of weak coal petrography material shear creep test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103439198B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104191313A (en) * | 2014-08-26 | 2014-12-10 | 广东工业大学 | Metal plate circle shear slitting three-way-force measuring device and method thereof |
| CN104458446A (en) * | 2014-12-10 | 2015-03-25 | 中国科学院工程热物理研究所 | Device and method for testing shearing characteristics of non-metallic materials |
| CN108931436A (en) * | 2018-06-01 | 2018-12-04 | 陕西省地质环境监测总站 | A kind of bias-load and shear creep compound action experimental rig of soft rock |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101105432A (en) * | 2007-06-13 | 2008-01-16 | 长安大学 | Cutting creep instrument |
| CN102116721A (en) * | 2010-01-04 | 2011-07-06 | 中国科学院地质与地球物理研究所 | Rock shear creep testing system capable of cyclic pulling and pressing fluctuating load |
| CN102297812A (en) * | 2011-05-20 | 2011-12-28 | 长安大学 | Torsional shear test device for asphalt pavement material and structure |
-
2013
- 2013-09-06 CN CN201310401744.XA patent/CN103439198B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101105432A (en) * | 2007-06-13 | 2008-01-16 | 长安大学 | Cutting creep instrument |
| CN102116721A (en) * | 2010-01-04 | 2011-07-06 | 中国科学院地质与地球物理研究所 | Rock shear creep testing system capable of cyclic pulling and pressing fluctuating load |
| CN102297812A (en) * | 2011-05-20 | 2011-12-28 | 长安大学 | Torsional shear test device for asphalt pavement material and structure |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104191313A (en) * | 2014-08-26 | 2014-12-10 | 广东工业大学 | Metal plate circle shear slitting three-way-force measuring device and method thereof |
| CN104191313B (en) * | 2014-08-26 | 2017-03-01 | 广东工业大学 | Sheet metal circle shear cutting processing three-dimensional force measuring device and its method |
| CN104458446A (en) * | 2014-12-10 | 2015-03-25 | 中国科学院工程热物理研究所 | Device and method for testing shearing characteristics of non-metallic materials |
| CN108931436A (en) * | 2018-06-01 | 2018-12-04 | 陕西省地质环境监测总站 | A kind of bias-load and shear creep compound action experimental rig of soft rock |
| CN108931436B (en) * | 2018-06-01 | 2021-02-26 | 陕西省地质环境监测总站 | Eccentric loading and shear creep combined action test device for soft rock |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103439198B (en) | 2016-02-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104180750B (en) | Accurate tester of superconductive-bulk magnetic-repulsion under micro gap and test method thereof | |
| CN103776685A (en) | Static force load testing device for concrete beam | |
| CN103954262A (en) | Device for measuring radial deformation of cylindrical test piece | |
| CN102607946A (en) | Device for large-scale true tri-axial test of original grading rockfill body and use method of method | |
| CN102749169A (en) | Simple and easy pressure calibration device of annular pressure sensor | |
| CN104165612A (en) | Novel displacement sensor transformation and amplification device | |
| CN103163016A (en) | Auxiliary device for carrying out axial tension test on quasi brittle materials | |
| CN203949656U (en) | A kind of cylinder specimen radial deformation measurement mechanism | |
| CN110174304B (en) | Multifunctional test system for concrete creep | |
| CN103439198B (en) | A kind of weak coal petrography material shear creep test device | |
| CN111272583A (en) | Compression-shear testing machine | |
| CN103926158A (en) | Cartilage creep mechanical performance testing device | |
| CN203455227U (en) | Point load test instrument | |
| CN205015236U (en) | Compound load normal position nanometer indentation testing arrangement of drawing - bending | |
| CN203785964U (en) | Digital portable press | |
| CN203502308U (en) | Shear creep test device for soft coal and rock material | |
| CN201795762U (en) | Roundness measuring instrument | |
| CN204064275U (en) | A kind of New Displacement Transducer conversion and multiplying arrangement | |
| CN202886200U (en) | Medium-sized rock-servo-controlled true triaxial test device | |
| CN103913384A (en) | Axial rigidity measuring apparatus of ball screw assembly | |
| CN106644329B (en) | 120MN bridge support testing machine for high-precision dynamic measurement | |
| CN202582983U (en) | Mobile beam locking device of compression testing machine | |
| CN101629797A (en) | Instrument for measuring one-side bulge quantity of bearing | |
| CN108931436B (en) | Eccentric loading and shear creep combined action test device for soft rock | |
| CN203249614U (en) | Compression deformation measuring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160217 Termination date: 20180906 |