CN207163790U - It is a kind of to prepare the experimental bench with random joints crack test specimen - Google Patents
It is a kind of to prepare the experimental bench with random joints crack test specimen Download PDFInfo
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- CN207163790U CN207163790U CN201720483282.4U CN201720483282U CN207163790U CN 207163790 U CN207163790 U CN 207163790U CN 201720483282 U CN201720483282 U CN 201720483282U CN 207163790 U CN207163790 U CN 207163790U
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- experimental bench
- test specimen
- test piece
- discharging opening
- piece mould
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Abstract
The experimental bench with random joints crack test specimen, including experiment table frame, household freezer, freezing case lid, low-temperature storage box, refrigerator tray, Multifunctional electronic scale, pallet, mixer, main drain hole, secondary blowing pipeline, secondary drain hole, discharging controlling device, control panel, test piece mould, shake table, discharging opening, traction draw ring, scraper are prepared the utility model discloses a kind of.It is household freezer on the left of the experimental bench；Control panel is inlaid with experimental bench desktop；Mixer top is connected with main drain hole, and bottom is connected with discharging opening；Discharging controlling device is placed in mixer lower port；The neck pilot specimen mould rectilinear movement of shake table top, is sequentially completed mixture.The utility model solves the problems, such as to make in current analog simulation experiment, and there is joint fissure test specimen to exist, approximation and the emulation for live coal, rock mass are realized, the design of experimental bench is simple and easy to use by Making programme organic combination in addition, efficiency high, overcome the deficiencies in the prior art.
Description
Technical field
The utility model is related to it is a kind of prepare the experimental bench with random joints crack test specimen, for analog simulation test in
Prepare coal, rock test specimen with random joints crack.
Background technology
Coal, rock mass for collection in worksite are fabricated to test specimen progress uniaxial compression, direct shear test is to study its mechanical property
One of important means, but substantial amounts of collection in worksite work takes time and effort, and testing manufacturing artificial test specimen by analog simulation is
One more satisfactory alternative.But preservation in the coal of underground, rock mass due to long-term geologic process, inside exist largely with
The joint fissure of machine distribution, the presence of these joint fissures make coal, rock mass have anisotropism, anisotropy and noncontinuity,
Have influence on coal, the destructive process of rock mass and mechanism.And for the real simulation of joint fissure in coal, rock mass in analog simulation experiment
Where being difficult point, therefore current research mainly is built upon coal, rock mass is that ideal homogeneous is assumed on basic, making
Test specimen does not contain joint fissure, it is not intended that influence of the joint fissure to experimental result；There is scholar in addition in simulation joint fissure
On make some attempts, but make test specimen in crack be not random distribution or simulation material selection it is single, and
Actual conditions still have gap, can not simulate coal, the mechanical characteristics of rock mass and failure mechanism well, while experimentation is answered
It is miscellaneous, the accuracy and operability of experiment are reduced, is unfavorable for popularization and application.
Utility model content
The experimental bench with random joints crack test specimen is prepared the utility model proposes a kind of, the experimental bench can prepare examination
Contact surface in the presence of the true coal of part approximate simulation, rock mass is smooth and contact surface is coarse, by chip filling and without filling out
Fill thing and scattered distribution variform joint fissure, realizes approximation and the emulation for live coal, rock mass, so as to more objective
Reflect its destructive process and mechanism, Making programme organic combination is realized streamlined operation, user by the design of experimental bench in addition
Just it is simple, efficiency high, overcome the deficiencies in the prior art.
The utility model adopts the following technical scheme that.
The utility model includes experiment table frame, household freezer, freezing case lid, low-temperature storage box, refrigerator tray, multifunction electronic
Scale, pallet, mixer, main drain hole, secondary blowing pipeline, secondary drain hole, discharging controlling device, control panel, test piece mould, shake
Dynamic platform, discharging opening, traction draw ring, scraper；Described household freezer is placed on the left of experimental bench, and its inner upper end is equipped with described low temperature
Storage Box, its lower inside are equipped with described refrigerator tray；Described Multifunctional electronic scale is embedded in experimental bench desktop, described support
Disk is placed in above described Multifunctional electronic scale；Described mixer is placed in below described main drain hole；Described secondary blowing
Pipeline upper port is connected with described secondary drain hole, and its top is placed in described experimental bench lower portion, its underpart with it is described
Discharging opening is connected；Described discharging controlling device is placed in described mixer lower port, and described experimental bench frame is fixed at both ends
On frame；Described control panel is located at the experimental bench desktop lower right corner；Described test piece mould be placed in above described shake table and
Immediately below described discharging opening；Described traction draw ring is connected with described test piece mould side；Described scraper both ends are fixed
In on described experiment table frame, being placed on front side of experimental bench, its lower end is in same level height with described test piece mould top
Degree.
Described freezing case lid is the sheet metal institute by wrapping up in PVC board or pressing and bending outside RPUF plate
Plug-type case lid is made, the low-temperature storage box of its upper end can be stored for simulating the material needed for crack, convenient disassembly, and case
Cover with lock, be easy to safety management.
The Multifunctional electronic scale has data importing, data accumulating and Chinese display function, it would be desirable to the title material weighed
And required weight imports electronic scale beforehand through USB interface, bluetooth or NFC label, can enter according to screen prompt during experiment
Row weighs one by one, simple operation, reduces experimenter and weighs mistake.
Described discharging controlling device is by step motor control, by the button on described control panel, described in realization
Discharging opening open and close function, and enhance the stability of described mixer.
Described test piece mould is made up of metallic plate or epoxy resin board, is tightly locked by Quick release, to realize fast assembling-disassembling.
Described traction draw ring is made up of epoxy resin, can draw card of the described test piece mould on described shake table
Moved in groove, it is easy to operate.
Described its lower channel angle of secondary blowing pipeline is larger, ensures the smooth downslide of crack simulation material, and can be with
As mixed serum is from described discharging opening releasing, realize that automation prepares random joints crack test specimen.
There is described shake table the time to preset, amplitude regulatory function.
The utility model solve the experiment of current analog simulation make during coal, rock test specimen can not prefabricated joint fissure,
Or prefabricated joint fissure is not that random distribution and simulation material select the problem of single, the utility model is used to prepare
The test specimen with random joints crack, realize that contact surface for random distribution in true coal, rock mass is smooth and contact
Face is coarse, by the approximation of the variform joint fissure of chip filling and non-filler and scattered distribution and emulation, more
Add true reflection coal, the mechanical characteristics and failure mechanism of rock mass, meet field condition, add the accuracy of analog simulation, and
And the design of experimental bench, by experiment flow organic combination, easy to use, efficiency greatly improves.The utility model can be used for coal, rock
Body Cracking Mechanism, coal wall caving, the analog simulation experiment of slope stability correlative study, using household freezer, prepare simulation joint
The material in crack；Using stepper motor, the open and close function of discharging opening is realized, simple to operate, control is accurate；Test specimen mould
Tool is tightly locked by Quick release, it is possible to achieve the fast assembling-disassembling of test piece mould；Using shake table, be advantageous to the stream of slurries in test piece mould
The timely discharge of air in dynamic and slurries；Using scraper, for scraping off unnecessary slurries, and make surface of test piece smooth.
Brief description of the drawings
When considered in conjunction with the accompanying drawings, the utility model can more completely be more fully understood.Accompanying drawing described herein is used for
Offer further understood to of the present utility model, embodiment and its illustrate be used for explain the utility model, do not form to this reality
With new improper restriction.
Fig. 1 is a kind of in the utility model embodiment to prepare the experimental bench with random joints crack test specimen and integrally illustrate
Figure.
Fig. 2 is household freezer schematic diagram in the utility model embodiment.
Fig. 3 is experimental bench parts thereof schematic diagram in the utility model embodiment
Label symbol explanation in accompanying drawing：
1- experiments table frame, 2- household freezers, 3- freezings case lid, 4- low-temperature storages box, 5- refrigerator trays, 6- multifunction electronics
Scale, 7- pallets, 8- mixers, the main drain holes of 9-, 10- pair blowings pipeline, 11- pairs drain hole, 12- discharging controlling devices, 13-
Control panel, 14- test piece moulds, 15- shake tables, 16- discharging openings, 17- tractions draw ring, 18- scrapers.
Embodiment
To enable above-mentioned purpose of the present utility model, feature and advantage more obvious understandable, below in conjunction with the accompanying drawings and tool
Body embodiment is described in further detail to the utility model.
It is a kind of to prepare the experimental bench with random joints crack test specimen, including experiment table frame, household freezer, low-temperature storage
Box, refrigerator tray, Multifunctional electronic scale, pallet, mixer, main drain hole, secondary blowing pipeline, secondary drain hole, discharging controlling device,
Control panel, test piece mould, shake table, discharging opening, traction draw ring, scraper.
As shown in Figure 1, 2, 3, the household freezer 2 that this preparation has the experimental bench of random joints crack test specimen is placed in experiment
On the left of platform, its inner upper end is equipped with low-temperature storage box 4, and its lower inside is equipped with refrigerator tray 5；Multifunctional electronic scale 6 is embedded in reality
Table surface is tested, pallet 7 is placed in the top of Multifunctional electronic scale 6；Mixer 8 is placed in the main lower section of drain hole 9；On secondary blowing pipeline 10
Port is connected with secondary drain hole 11, and its top is placed in inside experiment table frame 1, and its underpart is connected with discharging opening 16；Discharging control
Device 12 is placed in the lower port of mixer 8, and both ends are fixed on experiment table frame 1；Control panel 13 is located at experimental bench desktop bottom right
Angle；Test piece mould 14 is placed in immediately below the top of shake table 15 and discharging opening 16；Draw ring 17 is drawn with the side of test piece mould 14 to connect
Connect；The both ends of scraper 18 are fixed on described experiment table frame 1, are placed on front side of experimental bench, its lower end and the top of test piece mould 14
In same level height.
Its experimental procedure is as follows：
Test piece mould 14 employed in the present embodiment is that 3 sizes are 100 × 100 × 100mm (length × width × height) mould
The steel die that tool lattice is arranged side by side, can make three test specimens simultaneously.
The refrigerator tray 5 used is the metal dish of 330 × 250 × 25mm (length × width × height) for size, and refrigerator tray 5 is horizontal
It is placed on experimental bench desktop, weighs 230g water using Multifunctional electronic scale 6 and pallet 7 and be poured slowly into refrigerator tray 5, then claim
56g is taken to clean the mica sheet dried, mica sheet is evenly laid out in filling in the refrigerator tray 5 of water, freezing case lid 3 is opened, will be cold
Freeze disk 5 to be flat in household freezer 2, close freezing case lid 3, set -20 DEG C, freeze 36 hours.
By the borneol containing mica freezed be loaded on low-temperature storage box 4 in it is standby, to simulate by chip fill section
Manage crack.
Refrigerator tray 5 is horizontal positioned, weigh 280g water using Multifunctional electronic scale 6 and pallet 7 and be poured slowly into refrigerator tray 5
In, then refrigerator tray 5 is flat in household freezer 2, -20 DEG C are set, is freezed 36 hours.
By the borneol for not containing mica freezed be loaded on low-temperature storage box 4 in it is standby, to simulate non-filler
Joint fissure.
By thickness be 2.0mm paraffin thin slice be placed in it is standby in low-temperature storage box 4, to the joint that simulating contact face is smooth
Crack.
It is 0.02mm by thickness, size is that 250 × 90mm (long × wide) edible wafer is placed in low-temperature storage box 4
It is standby, to the joint fissure that simulating contact face is coarse.
The sub-sieve that ERSHUIPIAN shape calcium chloride is 4.0mm with screen size is screened, sub-sieve will be stayed in after screening
In ERSHUIPIAN shape calcium chloride be placed in it is standby in low-temperature storage box 4, to simulate the joint fissure of scattered distribution.
Appropriate pulverized coal preparation test specimen, cement selection conch board are coordinated as binder materials using cement in the present embodiment
P.O42.5 Portland cements, the sub-sieve that coal dust is 1.0mm with screen size screen standby.
The button pressed on control panel 13 starts mixer 8, and coal dust, cement and water are used into more work(according to required ratio
Energy electronic scale 6 and pallet 7 are weighed, and are passed sequentially through and are stirred 3 minutes in the main addition of drain hole 9 mixer 8, are made according still further to ratio
Carried out weighing the paraffin thin slice of appropriate size, edible wafer, ERSHUIPIAN shape calcium chloride with Multifunctional electronic scale 6 and pallet 7,
Add mixer 8 and continue stirring 20 seconds.
The borneol containing mica is weighed in proportion using Multifunctional electronic scale 6 and pallet 7 and does not contain the borneol of mica, and
Secondary drain hole 11 is added, the bottom of mixer 8 is delivered to via secondary blowing pipeline 10.
The inwall of test piece mould 14 is uniformly painted into lubricating oil, using drawing draw ring 17 by test piece mould 14 along shake table 15
Top neck movement, makes 14 first lattices of test piece mould move to immediately below discharging opening 16, while by pressing control panel 13
On button settings shake table 15 Oscillation Amplitude, and Vibration on Start-up platform 15.
The button pressed on control panel 13 starts discharging controlling device 12, and discharging opening 16 is opened, makes the material prepared
Flow into 14 first lattices of test piece mould immediately below discharging opening 16,14 first lattices of test piece mould, which load, to be finished
Afterwards, by pressing the button on control panel 13, close discharging opening 16, using drawing draw ring 17 by test piece mould 14 along shaking
The neck movement on the dynamic top of platform 15, is loaded the underface that 14 second lattices of test piece mould move to discharging opening 16, until
3 lattices are loaded and finished.
The button pressed on control panel 13 closes mixer 8 and shake table 15.
Neck of the test piece mould 14 along the top of shake table 15 is pulled out using draw ring 17 is drawn, during pull-out, profit
Surface of test piece is struck off with scraper 18, plastic sheeting on cover, is placed on shady place and is stood 24h.
Test specimen is taken out from test piece mould 14, test specimen is conserved at aeration-drying 20 days, completes to split with random joints
The preparation process of gap test specimen.
One kind of embodiment described above, simply the utility model more preferably specific embodiment, is not intended to limit
The utility model, the usual variations and alternatives that those skilled in the art is carried out in the range of technical solutions of the utility model all should
In the scope of protection of the utility model.
Claims (8)
1. a kind of prepare the experimental bench with random joints crack test specimen, it is characterised in that including experiment table frame, household freezer,
Freezing case lid, low-temperature storage box, refrigerator tray, Multifunctional electronic scale, pallet, mixer, main drain hole, secondary blowing pipeline, pair are put
Material mouth, discharging controlling device, control panel, test piece mould, shake table, discharging opening, traction draw ring, scraper；Described household freezer
It is placed on the left of experimental bench, its inner upper end is equipped with described low-temperature storage box, and its lower inside is equipped with described refrigerator tray；It is described
Multifunctional electronic scale be embedded in experimental bench desktop, described pallet is placed in above described Multifunctional electronic scale；Described stirs
The machine of mixing is placed in below described main drain hole；Described secondary blowing pipeline upper port is connected with described secondary drain hole, its top
Described experimental bench lower portion is placed in, its underpart is connected with described discharging opening；Described discharging controlling device is placed in described
Mixer lower port, both ends are fixed on described experiment table frame；Described control panel is located at experimental bench desktop bottom right
Angle；Described test piece mould is placed in above described shake table and immediately below described discharging opening；Described traction draw ring and institute
The test piece mould side connection stated；Described scraper both ends are fixed on described experiment table frame, are placed on front side of experimental bench, its
Lower end is in same level height with described test piece mould top.
2. a kind of the experimental bench with random joints crack test specimen is prepared according to claim 1, it is characterised in that described
Freezing case lid be the plug-type case as made by wrapping up in the sheet metal of PVC board or pressing and bending outside RPUF plate
Lid, the low-temperature storage box of its upper end can be stored for simulating the material needed for crack, convenient disassembly, and lock is carried on case lid,
It is easy to safety management.
3. a kind of the experimental bench with random joints crack test specimen is prepared according to claim 1, it is characterised in that described
Multifunctional electronic scale there are data to import, data accumulating and Chinese display function, it would be desirable to the title material weighed and required weight
Electronic scale is imported beforehand through USB interface, bluetooth or NFC label, can be weighed one by one according to screen prompt during experiment,
Simple operation, reduce experimenter and weigh mistake.
4. a kind of the experimental bench with random joints crack test specimen is prepared according to claim 1, it is characterised in that described
Discharging controlling device by step motor control, by the button on described control panel, realize beating for described discharging opening
Open and close function, and enhance the stability of described mixer.
5. a kind of the experimental bench with random joints crack test specimen is prepared according to claim 1, it is characterised in that described
Test piece mould be made up of metallic plate or epoxy resin board, tightly locked by Quick release, to realize fast assembling-disassembling.
6. a kind of the experimental bench with random joints crack test specimen is prepared according to claim 1, it is characterised in that described
Traction draw ring be made up of epoxy resin, described test piece mould can be drawn and moved in the neck on described shake table, grasped
Facilitate.
7. a kind of the experimental bench with random joints crack test specimen is prepared according to claim 1, it is characterised in that described
Secondary blowing pipeline its lower channel angle it is larger, ensure the smooth downslide of crack simulation material, and can be with mixed serum
Released from described discharging opening, realize that automation prepares random joints crack test specimen.
8. a kind of the experimental bench with random joints crack test specimen is prepared according to claim 1, it is characterised in that described
Shake table have that the time is default, amplitude regulatory function.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720483282.4U CN207163790U (en) | 2017-05-04 | 2017-05-04 | It is a kind of to prepare the experimental bench with random joints crack test specimen |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720483282.4U CN207163790U (en) | 2017-05-04 | 2017-05-04 | It is a kind of to prepare the experimental bench with random joints crack test specimen |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106940267A (en) * | 2017-05-04 | 2017-07-11 | 中国矿业大学(北京) | It is a kind of to prepare the experimental bench with random joints crack test specimen |
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2017
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106940267A (en) * | 2017-05-04 | 2017-07-11 | 中国矿业大学(北京) | It is a kind of to prepare the experimental bench with random joints crack test specimen |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180330 Termination date: 20190504 |
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| CF01 | Termination of patent right due to non-payment of annual fee |