CN107389441A - A kind of Tensile Strength of Rock test system - Google Patents
A kind of Tensile Strength of Rock test system Download PDFInfo
- Publication number
- CN107389441A CN107389441A CN201710547936.XA CN201710547936A CN107389441A CN 107389441 A CN107389441 A CN 107389441A CN 201710547936 A CN201710547936 A CN 201710547936A CN 107389441 A CN107389441 A CN 107389441A
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- CN
- China
- Prior art keywords
- column
- saddle
- footstock
- cushioning support
- fixing groove
- 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.)
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Classifications
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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
- G01N3/02—Details
- G01N3/04—Chucks
-
- 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
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
Abstract
The invention provides a kind of Tensile Strength of Rock test system, it is characterised in that including base, footstock, the first column, the second column, the first fixing groove, the second fixing groove, Pressure Block and clamping bearing；First column, the bottom of the second column are separately fixed at the base, the footstock is slidably connected on first column, the second column, first column, the second column cylinder on the clamping bearing is installed respectively, first fixing groove described in the floor installation, the footstock installs second fixing groove, and the footstock is fixed on the Pressure Block.Heretofore described system can not only carry out quick accurate fixed to rock sample in advance, and can also adjust the stability of loading rock sample at initial stage in itself by system, reach not only accurate but also easily test purpose.
Description
Technical field
The present invention relates to a kind of test device technical field, more particularly to a kind of Tensile Strength of Rock test system.
Background technology
In engineering practice, typically allowable tensile stress does not occur, but tensile failure is still engineering rock mass and nature rock mass
One of main damage form, and the ability of rock resistance tension is minimum.Therefore, tensile strength is an important rock mass
Mechanical index.It still establishes Strength Criterion For Rock, determines indispensable power in strength envelope and building stone selection
Learn parameter.The complexity and accuracy of direct tensile tests are limited to, at present, the measure of Tensile Strength of Rock is typically using Brazil
Diametral compression test (Braziliantest), this is also the Rock Under Uniaxial Compression tensile strength that ISRM (ISRM) is recommended
One of method of testing, however, during carrying out Brazilian diametral compression test in laboratory, people generally place between bearing plate is loaded
Two steel bars, by the line load loading of steel bar, make sample that tensile failure occur, so as to carry out the test of tensile strength, still
In test process, due to lacking unified fixing device, the particularly circular test specimen of rock sample is difficult to be fixed on two up and down
Between steel bar, carry out greatly inconvenience to calibration tape, simultaneously as artificial rough adjustment, it is difficult along rock to make linear load
Radial loaded, the precision for the Tensile Strength of Rock finally measured is difficult to ensure that.
The content of the invention
The embodiments of the invention provide a kind of Tensile Strength of Rock test system, the system can not only be in advance to rock sample
Quick and precisely fixed, and the stability at rock loading initial stage can also be adjusted in itself by system, reach not only accurate but also just
Prompt test purpose.
To achieve these goals, this invention takes following technical scheme：
A kind of Tensile Strength of Rock test system, it is characterised in that including base, footstock, the first column, the second column,
First fixing groove, the second fixing groove, Pressure Block and clamping bearing；First column, the bottom of the second column are separately fixed at
The base, the footstock are slidably connected on first column, the second column, first column, the post of the second column
The clamping bearing, the first fixing groove described in the floor installation are installed respectively, the footstock installation described second is fixed on body
Groove, the footstock are fixed on the Pressure Block.
Further, rock sample is placed in first fixing groove, under the transversely acting of the clamping bearing, be used for
Ensure the fixation of the rock sample.
Further, cushioning support-saddle is set on the footstock, the cushioning support-saddle by the transmission rod provided with rubber blanket with
The cylinder friction agrees with.
Further, described cushioning support-saddle is provided with cushioning support-saddle button, and the cushioning support-saddle button is described for controlling
The friction of rubber blanket and the cylinder and separate.
Further, described clamping bearing is spring, and the spring one end is fixed on the cylinder, and one end is provided with folder
Plate is held, the spring is provided with sheath, and the sheath is fixed on the cylinder.
Further, insertion steel bar in first fixing groove, the second fixing groove, described steel bar is triangular pyramidal steel
Bar.
Further, the first described column, the second column are rigid hollow axle.
Further, described cushioning support-saddle is spring, and described rubber blanket is arc compounded rubber pad.
Further, the system at work, first presses cushioning support-saddle button, by inwardly extruding transmission rod, makes arc
Shape compounded rubber pad is separated with rigid hollow axle, and footstock is moved into specified location, then presses cushioning support-saddle button, by slow
The effect of support spring is rushed, arc compounded rubber pad is agreed with rigid hollow axle friction, the fixation for footstock；Then by rock
Stone test specimen is fixed on the inside of grip block, in the presence of the cushioning support-saddle spring of both ends, ensures that the geometric center of rock sample passes through
Bottom triangular pyramidal steel bar, makes rock sample fully be fixed on base；Cushioning support-saddle button is pressed again, under making footstock slow
At the top of to rock sample, rock sample is placed under the triangular pyramidal steel bar of top, press cushioning support-saddle button again, by described in
System is placed in above and below forcing press between increased pressure board, when increased pressure board upper and lower end fully contacts with Pressure Block and base respectively, again
Cushioning support-saddle button is pressed, after separation arc compounded rubber pad agrees with rigid hollow axle friction, it is strong to carry out rock sample tension
Degree test.
Bearing is clamped in the present invention it can be seen from the technical scheme of the offer of the invention described above can ensure that rock sample is steady
Admittedly be placed in lower wall base, avoid it from occurring at test initial stage compared with large disturbances, ensure that the required precision of test, meanwhile,
Top triangular pyramidal steel bar can be inserted into the fixing groove of top, easily and accurately can be applied linear load in the presence of cushioning support-saddle
It is added on rock sample, improves the Efficiency and accuracy of test.
The additional aspect of the present invention and advantage will be set forth in part in the description, and these will become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment
Accompanying drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for this
For the those of ordinary skill of field, without having to pay creative labor, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 is a kind of front view of Tensile Strength of Rock test system provided in an embodiment of the present invention；
Fig. 2 is a kind of top view of Tensile Strength of Rock test system provided in an embodiment of the present invention.
【Reference】
1. base, 2. footstocks, 3. rigid hollow axles, 4. Pressure Blocks, 5. rigid sheaths, 6. clamping support springs, 7. clampings
Plate, 8. top fixing grooves, 9. bottom fixing grooves, 10. top triangular pyramidal steel bars, 11. bottom triangular pyramidal steel bars, 12. bufferings
Bearing button, 13. cushioning support-saddle springs, 14. middle part fixing bolts, 15. arc compounded rubber pads, 16. transmission rods, 17. rocks
Test specimen, the movable bolt in 18. edges.
Embodiment
Embodiments of the present invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element is represented to same or similar label eventually or there is the element of same or like function.Below by ginseng
The embodiment for examining accompanying drawing description is exemplary, is only used for explaining the present invention, and is not construed as limiting the claims.
Those skilled in the art of the present technique are appreciated that unless expressly stated, singulative " one " used herein, " one
It is individual ", " described " and "the" may also comprise plural form.It is to be further understood that what is used in the specification of the present invention arranges
Diction " comprising " refer to the feature, integer, step, operation, element and/or component be present, but it is not excluded that in the presence of or addition
One or more other features, integer, step, operation, element, component and/or their groups.It should be understood that when we claim member
Part is " connected " or during " coupled " to another element, and it can be directly connected or coupled to other elements, or there may also be
Intermediary element.In addition, " connection " used herein or " coupling " can include wireless connection or coupling.Wording used herein
"and/or" includes any cell of one or more associated list items and all combined.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology art
Language and scientific terminology) with the general understanding identical meaning with the those of ordinary skill in art of the present invention.Should also
Understand, those terms defined in such as general dictionary, which should be understood that, to be had and the meaning in the context of prior art
The consistent meaning of justice, and unless defined as here, will not be with idealizing or the implication of overly formal be explained.
For ease of the understanding to the embodiment of the present invention, done further by taking several specific embodiments as an example below in conjunction with accompanying drawing
Explanation, and each embodiment does not form the restriction to the embodiment of the present invention.
Fig. 1 is a kind of front view of Tensile Strength of Rock test system provided in an embodiment of the present invention；As shown in Figure 1：
Rigid hollow axle 3 is fixed on base 1, and rigid sheath 5 is fixed on rigid hollow axle 3, and clamping support spring 6 one end is consolidated
Due to rigid hollow axle 3, one end is rigidly connected with grip block 7, is placed in rigid sheath 5；
Bottom fixing groove 8 is rigidly connected with base 1, and bottom triangular pyramidal steel bar 11 inserts bottom fixing groove 9 can be to rock
The bottom of test specimen 17 applies linear load；Top fixing groove 8 is rigidly connected with footstock 2, and top triangular pyramidal steel bar 10 is inserted into top
Portion's fixing groove 8 can apply linear load to the top of rock sample 17；
Pressure Block 4 is fixed on the middle part of footstock 2, footstock 2 and the nested encryptions of rigid hollow axle 3, under vertical uniform load q, holds
Wedge 4 drives footstock 2 and top triangular pyramidal steel bar 10 to move down, and rock sample 17 is gradually produced tensile failure, so as to
Determine its tensile strength.
Fig. 2 is a kind of top view of Tensile Strength of Rock test system provided in an embodiment of the present invention.As shown in Figure 2：
Cushioning support-saddle button 12 is rigidly connected with transmission rod 16, and transmission rod 16 is soft by the movable bolt 18 in edge in turning point
Property connection, be fixed at anti-symmetry point by middle part fixing bolt 14 on footstock 2, top is fixed in the one end of cushioning support-saddle spring 13
Seat 2, one end is flexibly connected with transmission rod 16 by the movable bolt 18 in edge, and cushioning support-saddle arc compounded rubber pad 15 is fixed on biography
The top of power bar 16, in the presence of cushioning support-saddle spring 13, agree with the friction of rigid hollow axle 3, in the presence of side friction,
Footstock 2 can be fixed on the optional position of rigid hollow axle 3, and when pressing cushioning support-saddle button 12, footstock 2 being capable of rapid decrease
Or specified location is risen to, therefore tensile strength test can be carried out to normal diameter test specimen and arbitrary dimension test specimen.
In system of the present invention, the connected mode between each part is to be rigidly connected.
The system at work, must first press cushioning support-saddle button 12, by inwardly extruding transmission rod, make cushioning support-saddle arc
Shape compounded rubber pad 15 is separated with rigid hollow axle 3, and footstock 2 is moved into specified location upwards, presses cushioning support-saddle button 12,
By the transversely acting of cushioning support-saddle spring 13, arc compounded rubber pad 15 is rubbed with rigid hollow axle 3 and agree with, so as to fixed
Footstock 2；Rock sample 17 is fixed on the inner side of lower section grip block 7, the buffering branch that modulus of elasticity is consistent at both ends and length is consistent
In the presence of seat spring 13, it is ensured that the geometric center of rock sample fills rock sample by bottom triangular pyramidal steel bar 11
Divide and be fixed on base 1；Cushioning support-saddle button 12 is pressed, to the top of rock sample 17 under allowing footstock 2 slowly, puts rock sample
Under top triangular pyramidal steel bar 10, cushioning support-saddle button 12 is pressed again, whole system is in stable state, now will
Whole system is placed in above and below universal testing machine between increased pressure board, when increased pressure board upper and lower end is abundant with Pressure Block 4 and base 1 respectively
During contact, cushioning support-saddle button 12 is pressed again, eliminates friction effect, and in pressure very little, whole system can ensure that rock tries
Lateral extrusion skew will not occur for part, so not only improve the efficiency of Tensile Strength of Rock test, and ensure that its measurement
Precision.
Those skilled in the art will be understood that the connected mode of each part of said apparatus is only for example, and other are existing or modern
The connected mode for each part of said apparatus being likely to occur afterwards is such as applicable to the embodiment of the present invention, should also be included in the present invention and protect
Protect within scope, and be incorporated herein by reference herein.
In summary, rock sample can not only be fixed in advance for the embodiment of the present invention, and can also pass through device sheet
Body adjusts the loading orientation of linear load, reaches not only accurate but also convenient test purpose.
In the present invention, clamping bearing can ensure that rock sample is firmly seated in base, avoid it in test hair at initial stage
Give birth to compared with large disturbances, ensure that the required precision of test, meanwhile, top triangular pyramidal steel bar can be inserted into the fixing groove of top, slow
Rushing in the presence of bearing easily and accurately can be applied to linear load on rock sample, improve the efficiency of test and accurate
Degree.
One of ordinary skill in the art will appreciate that：Accompanying drawing is the schematic diagram of one embodiment, module in accompanying drawing or
Flow is not necessarily implemented necessary to the present invention.
One of ordinary skill in the art will appreciate that：Part in system described in the embodiment of the present invention can be according to embodiment
Description is distributed in the system of embodiment, can also carry out one or more devices that respective change is disposed other than the present embodiment
In.The part of above-described embodiment can be merged into a part, can also be further split into multiple subassemblies.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, the change or replacement that can readily occur in,
It should all be included within the scope of the present invention.Therefore, protection scope of the present invention should be with scope of the claims
It is defined.
Claims (9)
1. a kind of Tensile Strength of Rock test system, it is characterised in that including base, footstock, the first column, the second column,
One fixing groove, the second fixing groove, Pressure Block and clamping bearing；First column, the bottom of the second column are separately fixed at institute
Base is stated, the footstock is slidably connected on first column, the second column, first column, the cylinder of the second column
Upper to install the clamping bearing respectively, the first fixing groove described in the floor installation, the footstock installs second fixing groove,
The footstock is fixed on the Pressure Block.
2. system according to claim 1, it is characterised in that rock sample is placed in first fixing groove, it is described
Under the transversely acting for clamping bearing, for ensureing the fixation of the rock sample.
3. system according to claim 1, it is characterised in that cushioning support-saddle, the cushioning support-saddle are set on the footstock
Agreed with by the transmission rod provided with rubber blanket and the cylinder friction.
4. system according to claim 3, it is characterised in that described cushioning support-saddle is provided with cushioning support-saddle button, described
Cushioning support-saddle button is used to control the friction of the rubber blanket and the cylinder and separated.
5. system according to claim 1, it is characterised in that described clamping bearing is spring, and the spring one end is consolidated
It is scheduled on the cylinder, one end is provided with grip block, and the spring is provided with sheath, and the sheath is fixed on the cylinder.
6. system according to claim 1, it is characterised in that insertion steel bar in first fixing groove, the second fixing groove,
Described steel bar is triangular pyramidal steel bar.
7. system according to claim 1, it is characterised in that described the first column, the second column are rigid hollow axle.
8. system according to claim 3, it is characterised in that described cushioning support-saddle is spring, and described rubber blanket is
Arc compounded rubber pad.
9. system according to claim 1, it is characterised in that the system at work, first presses cushioning support-saddle button,
By inwardly extruding transmission rod, arc compounded rubber pad is departed from rigid hollow axle, footstock is moved to specified location, then
Cushioning support-saddle button is pressed, by the effect of cushioning support-saddle spring, arc compounded rubber pad is agreed with rigid hollow axle friction,
For fixing footstock；Then rock sample is fixed on the inside of grip block, in the presence of the cushioning support-saddle spring of both ends, ensures rock
The geometric center of stone test specimen makes rock sample fully be fixed on base by bottom triangular pyramidal steel bar；Buffering is pressed again
Bearing button, to rock sample top under making footstock slow, rock sample is placed under the triangular pyramidal steel bar of top, press again
Lower cushioning support-saddle button, the system is placed in above and below testing machine between increased pressure board, when increased pressure board upper and lower end respectively with Pressure Block
When fully being contacted with base, cushioning support-saddle button is pressed again, and separation arc compounded rubber pad agrees with rigid hollow axle friction
Afterwards, rock sample tensile strength test is carried out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710547936.XA CN107389441A (en) | 2017-07-06 | 2017-07-06 | A kind of Tensile Strength of Rock test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710547936.XA CN107389441A (en) | 2017-07-06 | 2017-07-06 | A kind of Tensile Strength of Rock test system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107389441A true CN107389441A (en) | 2017-11-24 |
Family
ID=60335443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710547936.XA Pending CN107389441A (en) | 2017-07-06 | 2017-07-06 | A kind of Tensile Strength of Rock test system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108318335A (en) * | 2018-03-30 | 2018-07-24 | 河南理工大学 | A kind of Brazil's spilt test specimen holder mold |
| CN109374434A (en) * | 2018-09-05 | 2019-02-22 | 华北水利水电大学 | Asphalt concrete pavement material shearing performance test device |
| CN110646279A (en) * | 2019-09-12 | 2020-01-03 | 山东大学 | Brazilian splitting test clamp |
| CN113203627A (en) * | 2021-05-10 | 2021-08-03 | 北京科技大学 | Method for testing and evaluating mechanical heterogeneity of rock based on acoustic emission |
| CN113340734A (en) * | 2021-06-11 | 2021-09-03 | 湖北中烟工业有限责任公司 | Tobacco leaf penetrating strength's survey device |
| CN113447331A (en) * | 2021-07-05 | 2021-09-28 | 长沙理工大学 | Rock splitting device with controllable splitting surface and splitting method |
| CN114279830A (en) * | 2021-11-23 | 2022-04-05 | 中铁二十局集团第四工程有限公司 | Rock anisotropic tensile strength testing device and using method thereof |
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| CN103471909A (en) * | 2013-10-10 | 2013-12-25 | 山东科技大学 | Test auxiliary device for testing tensile strength of rock through Brazilian test |
| CN103616295A (en) * | 2013-12-10 | 2014-03-05 | 山东科技大学 | Testing device and testing method for mechanical parameters of non-standard rock test piece |
| CN105445101A (en) * | 2015-11-12 | 2016-03-30 | 中国矿业大学 | Experiment clamp capable of being adjusted and aligned and used for determining tensile strength of rocks with splitting method and method for determining tensile strength of rocks |
| US20160231215A1 (en) * | 2015-02-09 | 2016-08-11 | Sichuan University | Device for fixing rock sample |
| CN206876483U (en) * | 2017-07-06 | 2018-01-12 | 防灾科技学院 | A kind of Tensile Strength of Rock test device |
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2017
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| GB448130A (en) * | 1934-12-01 | 1936-06-02 | Harry Quinney | Improvements in or relating to mechanical testing machines for making impact tests on materials |
| SU1348709A1 (en) * | 1985-10-05 | 1987-10-30 | Всесоюзный научно-исследовательский горно-металлургический институт цветных металлов | Device for determining physical and mechanical properties of rocks and hard materials |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108318335A (en) * | 2018-03-30 | 2018-07-24 | 河南理工大学 | A kind of Brazil's spilt test specimen holder mold |
| CN109374434A (en) * | 2018-09-05 | 2019-02-22 | 华北水利水电大学 | Asphalt concrete pavement material shearing performance test device |
| CN110646279A (en) * | 2019-09-12 | 2020-01-03 | 山东大学 | Brazilian splitting test clamp |
| CN110646279B (en) * | 2019-09-12 | 2023-11-28 | 山东大学 | Brazil split test fixture |
| CN113203627A (en) * | 2021-05-10 | 2021-08-03 | 北京科技大学 | Method for testing and evaluating mechanical heterogeneity of rock based on acoustic emission |
| CN113340734A (en) * | 2021-06-11 | 2021-09-03 | 湖北中烟工业有限责任公司 | Tobacco leaf penetrating strength's survey device |
| CN113340734B (en) * | 2021-06-11 | 2022-05-17 | 湖北中烟工业有限责任公司 | Tobacco leaf penetrating strength's survey device |
| CN113447331A (en) * | 2021-07-05 | 2021-09-28 | 长沙理工大学 | Rock splitting device with controllable splitting surface and splitting method |
| CN114279830A (en) * | 2021-11-23 | 2022-04-05 | 中铁二十局集团第四工程有限公司 | Rock anisotropic tensile strength testing device and using method thereof |
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