CN104142267B - Ground tensile test device - Google Patents
Ground tensile test device Download PDFInfo
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- CN104142267B CN104142267B CN201310169012.2A CN201310169012A CN104142267B CN 104142267 B CN104142267 B CN 104142267B CN 201310169012 A CN201310169012 A CN 201310169012A CN 104142267 B CN104142267 B CN 104142267B
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Abstract
The present invention relates to ground performance detection field, there is provided a kind of ground tensile test device, for testing I-shaped sample tensile strength, including pedestal, being provided with side by side on pedestal is used for fixation test box and nigration box that card respectively sets the sample both ends, fixation test box has the first action plate that can stretch out sample interlude, nigration box has the second action plate that can stretch out sample interlude, and first action plate be oppositely arranged with the second action plate, nigration box be connected with for drive makes it away from fixation test box direction movement pushing meanss.The present invention is clamped by two test boxs to the formation of I-shaped sample, in the presence of pushing meanss, two test boxs produce the effect of power to the both ends of sample, and then sample interlude produces deformation, the tensile property of sample can easily be detected, and the present apparatus can be tested large dimension specimen, the influence of dimensional effect and boundary effect can be reduced, it is ensured that the accuracy of tensile property detection.
Description
Technical field
The present invention relates to ground performance detection apparatus, more particularly to a kind of ground tensile test device.
Background technology
Drawing crack destruction of the tensile strength of Rock And Soil and Rock And Soil and structures contact surface to Geotechnical Engineering has important
Meaning.At present for tensile strength experimental test frequently with tensile strength test instrument or universal testing machine, but rock
Soil material has discrete material characteristic, cumbersome in terms of sampling clamping and load apply, it is impossible to use existing examination
Equipment tested for tensile strength is tested, and existing testing equipment requires that the size of sample is smaller, and the Rock And Soil of reduced size exists
Dimensional effect and boundary effect influence substantially on it during experimental test.
The content of the invention
It is an object of the invention to the defect for overcoming prior art, there is provided a kind of experiment for testing ground tensile property
Device.
In order to solve the above technical problems, the technical scheme is that：A kind of ground tensile test device is provided, for surveying
It is provided with to be used to block respectively side by side on trial work font sample tensile strength, including pedestal, the pedestal and sets the sample both ends
Fixation test box and nigration box, the fixation test box have the first effect that can stretch out the sample interlude
Plate, the nigration box has the second action plate that can stretch out the sample interlude, and first action plate and institute
State the second action plate to be oppositely arranged, the nigration box is connected with makes it away from the fixation test box direction movement for drive
Pushing meanss.
Further, including the fixation test box and the nigration box are connected and located at measurement between the two
Device.
Further, including a control and data collecting system, the system electrically connects the pushing meanss and institute
State measurement apparatus.
Further, support slide plate is additionally provided with the pedestal, the sample interlude is located on the support slide plate, institute
Stating support slide plate includes the stator being connected with the fixation test box and the moving sheet being connected with the nigration box, institute
Stator is stated to overlap with the moving sheet.
Further, in addition to for putting the drawing crack box of the sample interlude, the drawing crack box have with it is described
The first connection end and synchronization-moving second connection end of the nigration box that fixation test box is fixedly connected, and the drawing
Box is split to be located on the support slide plate.
Specifically, the upper end of first action plate, which has, is easy to the sample end to be placed in the fixation test box
First breach, the second action plate upper end also has be easy to described sample the other end to be placed in the nigration box the
Two breach, first action plate is respectively and fixedly provided with what is be open for lid envelope first breach and second with second action plate
Two cover plates, two connection ends of each cover plate respectively with the drawing crack box are fixedly connected.
Further, the cover plate is provided with the jack for being used for supporting the sample end.
Specifically the drawing crack box is provided with viewing window.
Further, the pedestal is provided with slideway, and the nigration box is slidedly arranged in the slideway.
Specifically, the pushing meanss are constant load instrument, and two loading axis of the constant load instrument support the shifting
Dynamic test box.
The present invention has following technique effect：
The present invention can easily block the both ends for setting I-shaped sample by fixation test box and nigration box,
Form the clamping to sample, i.e. so that the drawing crack section of the interlude sample of sample be located just at two test boxs it
Between, in the presence of pushing meanss, nigration box has an action away from fixation test box, such fixation test box
Second action plate of the first action plate and nigration box also begins to support the both ends of sample, is reached in the active force of pushing meanss
To sample maximum pull when, sample interlude starts drawing crack vestige occur, and nigration box also begins to slow movement, so that just
The tensile property of sample can be tested out.The present apparatus dexterously uses I-shaped sample, and the folder to it is formed by two test boxs
Hold, and then realize follow-up tension test, and the present apparatus can reduce dimensional effect and side with the larger sample of suitable dimensions
The influence of boundary's effect, so as to more accurately measure the tensile property of ground sample.
Brief description of the drawings
Fig. 1 is present pre-ferred embodiments side view；
Fig. 2 is sample front view in the embodiment of the present invention；
Fig. 3 is top view of the embodiment of the present invention；
Fig. 4 is drawing crack of embodiment of the present invention box and cover plate connection diagram.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Referring to Fig. 1 and Fig. 2, the embodiments of the invention provide a kind of ground tensile test device, it is mainly used in testing I-shaped
The tensile property of type sample 1, including a pedestal 2, on the base 2 provided with fixation test box 3 and nigration box 4, two examinations
Test box and be arranged side by side and can block respectively two ends 11 for setting sample, fixation test box 3 has first action plate 31,
Sample interlude 12 can be stretched out by the plate, while nigration box 4 has second action plate 41, sample interlude 12
It can be stretched out by the plate, certain two plates are oppositely arranged, so when sample 1 is placed in the present apparatus, and its both ends 11 is distinguished
It is fastened in two test boxs, and sample interlude 12 is then located just between two test boxs, further nigration box 4 is gone back
A pushing meanss 5 are connected with, the pushing meanss 5 can force nigration box 4 away from fixation test box 3.Surveyed in the present apparatus
Before examination, ground is first made to I-shaped sample 1, then the sample 1 is placed in the present apparatus, the both ends 11 of sample 1 difference position
In in two test boxs, sample interlude 12 is between two test boxs, so can be well to the shape of sample 1 by two test boxs
Into clamping, and sample interlude 12 compared with detailed rules and regulations as drawing crack section, in the presence of pushing meanss 5, nigration box 4 has remote
From the trend of fixation test box 3, so that the both ends 11 of the first action plate 31 and the second action plate 41 respectively to sample 1
Power is acted, and after the active force of pushing meanss 5 reaches the maximum pull of sample, that is, there is shape in sample interlude 12
Become, nigration box 4 starts after slow movement, pushing meanss 5 keep the active force to force nigration box 4 to continue to move to, and enter
And the tensile property of sample 1 can be tested out.Clamping to ground class sample 1 can be realized by the present apparatus, and then easily
The tensile property of ground is measured on ground, and the present apparatus be able to can be effectively reduced with the larger tensile property of sample 1 of test size
The influence that dimensional effect and boundary effect are brought, the test and comparison of tensile property is accurate.Certain fixation test box 3 and movement
Test box 4 can be opened, and the both ends 11 of sample 1 can be freely disposed within.
Further referring to Fig. 2 and Fig. 3, measurement apparatus 6, the survey are provided between fixation test box 3 and nigration box 4
Amount device 6 is connected with two test boxs respectively.The deformation quantity of sample 1 can be measured in real time by measurement apparatus 6, can be resolutely clear
The correlation test data of whole test process are solved, beneficial to analysis test result.Certainly one can also be set up in whole device
Control and data collecting system 7, while the system 7 is electrically connected with pushing meanss 5 and measurement apparatus 6 respectively.In process of the test
In, system 7 can control the amount of force of pushing meanss 5, before the not up to maximum pull of sample 1, and accurate control is pushed away
The increment of the dynamic active force of device 5, after maximum pull is reached, controls the active force of pushing meanss 5 to keep constant, until testing again
Journey terminates, and whole process does not need that artificial operation is very easy substantially；Further, in test process, system 7 can be real-time
The related data and the amount of force of corresponding pushing meanss 5 of measurement apparatus 6 are gathered, and then analyzes result of the test.
Referring to Fig. 1-Fig. 3, further, a support slide plate 21 is set on the base 2, sample interlude 12 is located at support
On slide plate 21.Because the size of sample 1 is larger, if all supported by two test boxs, the frictional force produced in drawing crack is larger, from
And result of the test is influenceed, and under the support of support slide plate 21, the stress of each point can be reduced, and also support slide plate 21 can be done
To higher smoothness, frictional force is effectively reduced, the accuracy of test data is improved.Usually, support slide plate 21 is also classified into solid
Stator 211 and the two parts of moving sheet 212, stator 211 are connected with fixation test box 3, moving sheet 212 and nigration box 4
Connect, and this two parts is superimposed together, after the maximum pull that pushing meanss 5 reach sample 1, nigration box 4 is starting
After movement, moving sheet 212 is moved together with nigration box 4, and closed state is gradually released.
Further referring to Fig. 1, Fig. 2 and Fig. 4, a drawing crack box 8,8, drawing crack box are additionally provided between two test boxs
When supporting on slide plate 21, and test, sample interlude 12 is located just in drawing crack box 8, while drawing crack box 8 also has one
The first connection end 81 and second connection end being fixedly connected with nigration box 4 being fixedly connected with fixation test box 3
82, and second connection end 82 can be with the synchronizing moving of nigration box 4, that is to say, that and drawing crack box 8 can be divided into two parts,
A portion is fixedly connected with fixation test box 3, and another part is fixedly connected with nigration box 4, while the two portions
Divide and do not connect, alternatively this two parts is misplaced, a portion stretches into another part formation stretching structure.Because
Sample 1 in the present embodiment is ground, and ground particle occurs unavoidably in tensile test, has undesirable effect, drawing crack box 4 can
To be prevented effectively from this influence, the ground particle of generation is all located in device substantially.
Further, in the upper end of the first action plate 31 provided with a first breach (not shown), and make second
, can be by the first breach and the so when placing sample 1 with the upper end of plate 41 provided with a second breach (not shown)
Two breach are inserted, it is to avoid some unnecessary troubles, and after the completion of the placement of sample 1, then in first action plate 31 and the
Two cover plates 9 are installed with two action plates 41 respectively, are two groups by 9 points of cover plate, and just to cover the first breach of envelope same for one of which
When fixed with the first connection end 81, and another set then cover envelope the second breach and connection the second connection end 82, so pass through lid
The connection end 81 of fixation test box 3 and first is connected as an entirety by plate 9, while the connection end 82 of nigration box 4 and second
Also it is an entirety.Jack (not shown) is usually additionally provided with the inboard of cover plate 9, jack can support sample 1
End 11, can preferably be exerted a force at the trial, and two test boxs can be played without directly being exerted a force to the end 11 of sample 1 to it
Protective effect, and jack can adjust, and can facilitate and the sample 1 of various sizes is carried out supporting force.Certainly for each
Connection between cover plate 9 and test box or drawing crack box 8 can be set to bolt connection, easy disassembly.Specifically, can be in drawing crack
One viewing window 83 is set on box 8, can be from the viewing whole drawing crack process of the Real Time Observation of window 83 during experiment.
Further, a slideway 22 is additionally provided with the base 2, and nigration box 4 is slidably installed in slideway 22, is so being pushed away
After dynamic device 5 is acted on, nigration box 4 is moved in slideway 22, can be greatly reduced frictional force during its movement, be improved experiment
The accuracy of data.
Referring specifically to Fig. 3, pushing meanss 5 can be set to constant load instrument, and its two loading axis 51 supports nigration
Box.The loading of constant load instrument is more accurate, and load is stable.
The foregoing is only preferred embodiments of the present invention, its structure is not limited to the above-mentioned shape enumerated, it is all
Any modifications, equivalent substitutions and improvements made within the spirit and principles in the present invention etc., should be included in the protection of the present invention
Within the scope of.
Claims (10)
1. a kind of ground tensile test device, for testing I-shaped sample tensile strength, it is characterised in that：Including pedestal, institute
State to be provided with side by side on pedestal and be used for fixation test box and nigration box that card respectively sets the sample both ends, the fixation
Test box has the first action plate that can stretch out the sample interlude, and the nigration box, which has, can make in the sample
Between the second action plate for stretching out of section, and first action plate is oppositely arranged with second action plate, the nigration box
It is connected with the pushing meanss that the fixation test box direction movement is made it away from for driving, the pedestal and is additionally provided with support cunning
Piece, the sample interlude is located on the support slide plate.
2. ground tensile test device as claimed in claim 1, it is characterised in that：Including connect the fixation test box and
The nigration box and located at measurement apparatus between the two.
3. ground tensile test device as claimed in claim 2, it is characterised in that：Including a control and data acquisition system
System, the system electrically connects the pushing meanss and the measurement apparatus.
4. ground tensile test device as claimed in claim 3, it is characterised in that：The support slide plate includes and the fixation
The stator of test box connection and the moving sheet being connected with the nigration box, the stator are folded with the moving sheet
Close.
5. ground tensile test device as claimed in claim 4, it is characterised in that：Also include being used to put in the middle of the sample
The drawing crack box of section, the drawing crack box has the first connection end being fixedly connected with the fixation test box and tried with the movement
Synchronization-moving second connection end of box is tested, and the drawing crack box is located on the support slide plate.
6. ground tensile test device as claimed in claim 5, it is characterised in that：The upper end of first action plate has just
The first breach being placed in the sample end in the fixation test box, the second action plate upper end is also described with being easy to
The second breach that sample the other end is placed in the nigration box, first action plate is distinguished with second action plate
The cover plate for covering envelope first breach and the second breach is fixed with, each cover plate is connected with the two of the drawing crack box respectively
End is fixedly connected.
7. ground tensile test device as claimed in claim 6, it is characterised in that：The cover plate, which is provided with, to be used to support the examination
The jack of sample end.
8. ground tensile test device as claimed in claim 5, it is characterised in that：The drawing crack box is provided with viewing window.
9. the ground tensile test device as described in claim any one of 1-8, it is characterised in that：The pedestal is provided with cunning
Road, the nigration box is slidedly arranged in the slideway.
10. the ground tensile test device as described in claim any one of 1-8, it is characterised in that：The pushing meanss are perseverance
Determine load apparatus, two loading axis of the constant load instrument support the nigration box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310169012.2A CN104142267B (en) | 2013-05-09 | 2013-05-09 | Ground tensile test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310169012.2A CN104142267B (en) | 2013-05-09 | 2013-05-09 | Ground tensile test device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104142267A CN104142267A (en) | 2014-11-12 |
| CN104142267B true CN104142267B (en) | 2017-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310169012.2A Active CN104142267B (en) | 2013-05-09 | 2013-05-09 | Ground tensile test device |
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| Country | Link |
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| CN (1) | CN104142267B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106908315B (en) * | 2017-05-01 | 2019-04-26 | 新昌县品顺机械有限公司 | The principal stress deflection experimental rig and application method of trapezoidal cheuch |
| CN106989991B (en) * | 2017-05-08 | 2019-10-18 | 长兴华强电子股份有限公司 | A kind of iron core strength test tooling |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2147529Y (en) * | 1992-11-13 | 1993-11-24 | 归丁华 | Metal material mechanics performance quick site measuring meter |
| JP3983938B2 (en) * | 1999-06-18 | 2007-09-26 | エスアイアイ・ナノテクノロジー株式会社 | Sample length setting jig for tensile measurement of thermomechanical measuring apparatus and thermomechanical measuring apparatus provided with the same |
| CN100533121C (en) * | 2007-02-08 | 2009-08-26 | 中国科学院化学研究所 | Minisize tension meter for infrared spectrometer |
| DE102008028403A1 (en) * | 2008-06-17 | 2009-12-24 | Bayer Materialscience Ag | Ansatzaufaufnehmer for measuring the change in length of a sample and this measuring method using |
| CN201348587Y (en) * | 2009-01-20 | 2009-11-18 | 兰州大学 | Magnetic suspension direct tensile test device |
| CN201653798U (en) * | 2010-03-31 | 2010-11-24 | 河北理工大学 | Assistant clamp for tensile test of material mechanics tester |
| CN201828459U (en) * | 2010-06-11 | 2011-05-11 | 武汉钢铁(集团)公司 | Measuring device for percentage elongation after fracture of tensile test piece |
| CN201859091U (en) * | 2010-11-19 | 2011-06-08 | 上海腾中机电设备有限公司 | Stretching sample fixture |
| CN102901669A (en) * | 2012-08-23 | 2013-01-30 | 苏州南智传感科技有限公司 | 8-analogue-shaped soil uniaxial tensile tester |
| CN202793921U (en) * | 2012-08-27 | 2013-03-13 | 西安科技大学 | Pavement material shearing intensity and shearing fatigue tester based on 8-shaped test piece |
| CN202814793U (en) * | 2012-09-04 | 2013-03-20 | 天津市奥凯石油机械有限公司 | Tensile testing machine |
| CN202853975U (en) * | 2012-09-06 | 2013-04-03 | 四川建筑职业技术学院 | Hole sleeve combined-pull-type hollow aluminum profile tension and compression fatigue test fixture |
| CN102928290A (en) * | 2012-10-24 | 2013-02-13 | 安徽恒索带业有限公司 | Tension testing device of traction belt |
| CN103091184B (en) * | 2013-02-05 | 2014-12-17 | 天津天东恒科技发展有限公司 | Sub-ultrasonic high-frequency fatigue testing machine |
| CN203287250U (en) * | 2013-05-09 | 2013-11-13 | 深圳市工勘岩土工程有限公司 | Tensile test device for sock-soil |
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2013
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Address after: 1501, Botai gongkan building, 8 Keji South 8th Road, high tech community, Yuehai street, Nanshan District, Shenzhen, Guangdong 518000 Patentee after: SHENZHEN GONGKAN GEOTECHNICAL GROUP Co.,Ltd. Address before: 518026 floors 20-22, middle building, Fujing building, Fuzhong Road, Futian District, Shenzhen, Guangdong Province Patentee before: SHENZHEN GONGKAN GEOTECHNICAL ENGINEERING Co.,Ltd. |
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