CN205209376U - A big gun hole plugging device for exploding model test - Google Patents
A big gun hole plugging device for exploding model test Download PDFInfo
- Publication number
- CN205209376U CN205209376U CN201521031057.4U CN201521031057U CN205209376U CN 205209376 U CN205209376 U CN 205209376U CN 201521031057 U CN201521031057 U CN 201521031057U CN 205209376 U CN205209376 U CN 205209376U
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- China
- Prior art keywords
- big gun
- gun hole
- silica gel
- model test
- steel component
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- 238000012360 testing method Methods 0.000 title claims abstract description 48
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 29
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 29
- 239000000741 silica gel Substances 0.000 claims abstract description 29
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 29
- 239000010959 steel Substances 0.000 claims abstract description 29
- 230000000694 effects Effects 0.000 claims abstract description 19
- 238000007789 sealing Methods 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 11
- 238000005422 blasting Methods 0.000 abstract description 9
- 238000004880 explosion Methods 0.000 abstract description 8
- 238000011160 research Methods 0.000 abstract description 8
- 230000000007 visual effect Effects 0.000 abstract description 8
- 230000009471 action Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 2
- 235000019504 cigarettes Nutrition 0.000 abstract 2
- 238000010030 laminating Methods 0.000 abstract 2
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 238000005474 detonation Methods 0.000 description 12
- 239000007789 gas Substances 0.000 description 12
- 230000008569 process Effects 0.000 description 7
- 239000003517 fume Substances 0.000 description 6
- 239000002360 explosive Substances 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 230000006378 damage Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000001066 destructive effect Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a big gun hole plugging device for exploding model test, including columnar order steel component and " protruding " type silica gel gasket. Wherein, the one end of columnar order steel component have with the recess of " protruding " type silica gel gasket intercoordination, the other end has a circular slotted hole, can insert the bolt and promoted. In assembling the recess of columnar order steel member with " protruding " type silica gel gasket, with its promotion and compress tightly the model test piece under the exogenic action. At this in -process, " protruding " type silica gel gasket is compressed tightly the deformation, because the silica gel material has good laminating nature with smooth model test piece surface, the silica gel gasket covers the big gun hole to with the peripheral closely laminating in big gun hole. Realizing effective jam in pair model test piece big gun hole, at photomechanics's explosion test in -process, can effectively guaranteeing the leakproofness of big gun hole department, spilling over of restraint big gun hole department big gun cigarette (exploding the vitality body) reduces the influence of big gun cigarette to surveing the visual field, strengthens exploding the vitality body and to the effect effect of test piece, reaches better blasting effect, provides simple, a convenient practical device for science, accurate research.
Description
Technical field
The present invention relates to a kind of optical measurement mechanics experimental rig, particularly relate to the experimental rig considering to need clear visual field in the effect of detonation gas quasistatic blast cracking, process of the test.
Background technology
Along with developing rapidly of modern test technology and computer technology, the research for material demolition mechanism obtains a very large progress.Blasting fracgmentation process is a complicated Dynamic Evolution, in this course, the complexity of the high temperature generated after explosive charge, gases at high pressure product and rock dynamic constitutive and interactional complexity between explosive and rock, make the research of blast mechanism seem very complicated and difficult.Present stage, the blast action of explosive mainly comprises the action use of Explosive stress wave and the quasistatic effect of detonation gas.Although based on the two one of developed different blast mechanism, substantially known together at present, thinking that explosion destroys is the two coefficient result.Therefore, in laboratory's model test of explosion, need the quasistatic effect considering detonation gas, wherein carrying out good blocking to big gun hole, prevent the too early leakage of detonation gas, is a key component of research experiment.
In optical measurement mechanics test, need to use high-speed camera and record is carried out to model test piece explosion destructive process, thus draw the time-histories relation of the related physical quantities such as Crack Extension displacement, speed, crack tip stress intensity factor.This just needs, in explosion destructive process, to have good visual field in the observation area of test specimen, namely will reduce the blasting fume of explosion generation to greatest extent to the impact of visual field.Therefore, the flash ranging for explosion is tested, and good blocking can suppress blasting fume on the impact of visual field preferably.
For taking into full account the quasistatic effect of detonation gas, reduce the impact of blasting fume testing of alignment Visually Inspected field, make model test respond well, test data sheet is complete, and spy has invented this experimental rig.
Summary of the invention
In view of existing experimental rig is difficult to effectively block test specimen big gun hole in model test, the object of the invention is to the quasistatic effect considering the detonation gas in blasting process for research, provide a kind of combine with optical measurement mechanics can effectively block big gun hole and reduce the experimental rig that blasting fume affects visual field.
For a big gun hole plugging device for bang model test, comprise column type steel component and " convex " type silica gel pad, the coupling of " convex " type silica gel pad is assembled on column type steel component, forms overall structure.One end of described column type steel component has a groove be coupled with " convex " type silica gel pad, can make both strong bonded, and can dismantle at any time; The other end of described column type steel component has a circular slotted eye, and bolt can insert wherein.Described " convex " type silica gel pad has good deformation performance, and stickiness is better, deforms and fits with model test piece intimate surface, realize the blocking to big gun hole under the pressure effect of column type steel component.
Described column type steel component can be moved by turning bolt, thus compresses test specimen.
Described column type steel component is the test component that can repeatedly utilize.
Described " convex " type silica gel pad can disassemble from column type steel component at any time, changes at any time.
A kind of advantage of big gun hole plugging device in explosion flash ranging test for bang model test of the present invention is: after (1) adopts this experimental provision, can realize the effective blocking to model test piece, effectively ensure the effect of detonation gas; (2) after adopting this device, the spilling of blasting fume can be reduced, reduce blasting fume to the impact of flash ranging visual field; (3) pressure of this device to model test piece can be controlled by turning bolt, being applicable to the model test piece of various thickness; (4) the column type steel component in this device is permanent component, and test substantially can not produce it and damage, and can repeatedly use for a long time; (5) " convex " type silica gel pad is easy to dismounting and changes, and according to " convex " type silica gel pad of the prefabricated different outer diameter dimension of the size in big gun hole, can be applicable to the model test piece of various big gun hole dimension; (6) whole experimental provision structure is simple, easy to operate, and has the larger scope of application.
Accompanying drawing explanation
Fig. 1 is the stereogram of center pillar type steel component of the present invention;
Fig. 2 is the cut away view of center pillar type steel component of the present invention;
Fig. 3 is the stereogram of " convex " type silica gel pad in the present invention;
Fig. 4 is the integrally-built stereogram of the present invention
Fig. 5 is the integrally-built cut away view of the present invention;
Fig. 6 is effect figure of the present invention.
Note: the unit marked in figure is millimeter.
Detailed description of the invention
Center of the present invention is: block both sides, big gun hole in the mode retrained, and prevents the too early leakage of detonation gas in process of the test to greatest extent, and the impact of quasistatic effect for demolition effect of detonation gas is considered in research.Adopt optical measurement mechanics method to observe explosive damage process, application of the present invention can reduce detonation gas spilling to the impact of test flash ranging visual field, for the effect of research detonation gas in blast action provides research technique.
Below in conjunction with accompanying drawing 1, Fig. 2, Fig. 3 and Fig. 4, the present invention is described in further detail:
For a big gun hole plugging device for bang model test, mainly comprise two parts: a part is column type steel component (as shown in Figure 1); Another part is " convex " type silica gel pad (as shown in Figure 2).There is a circular slotted eye column type steel component one end, can inserting bolt being pushed, and plays the effect compressing test specimen; " convex " type silica gel pad can fit tightly the big gun hole periphery in model test piece, plays the effect of sealing.
" convex " type silica gel pad is assembled in the groove be coupled with it of column type steel component one end, forms overall structure (as shown in Figure 3).For a concrete test, need to use two to such device, be clamped in both sides, big gun hole respectively, silica gel pad covers and is close to big gun hole (overall diameter of silica gel pad is at least the twice of blasthole diameter).Figure 4 shows that the present invention effect figure in test, the other end of column type steel component has a circular slotted eye, bolt can insert wherein, tight a bolt and can promote column type steel component, and compress " convex " type silica gel pad of column type steel component leading portion, make it deform and be close to big gun hole.Because " convex " type silica gel pad has good deformation characteristic and stickiness, both sides, big gun hole can be fitted tightly under pressure, effectively realize the sealing to big gun hole.
After having exploded, apparatus of the present invention are unloaded by loose bolts.Under detonation, " convex " type silica gel pad sustains damage destruction, after being taken off, replaces new " convex " type silica gel pad for subsequent use.When once testing on carrying out, again operate according to above step.
The above; be only the present invention's preferably detailed description of the invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.
Claims (7)
1. for a big gun hole plugging device for bang model test, it is characterized in that, comprise column type steel component and " convex " type silica gel pad, column type steel component is promoted by the external force of bolt, plays the effect of compression; " convex " type silica gel pad can fit tightly the big gun hole periphery in model test piece, plays the effect of sealing.
2. a kind of big gun hole plugging device for bang model test according to claim 1, is characterized in that one end of described column type steel component is prefabricated with groove.
3. a kind of big gun hole plugging device for bang model test according to claim 2, is characterized in that described groove and " convex " type silica gel pad are coupled, silica gel pad can be made to be assembled on column type steel beam column, rigid flexible system.
4. a kind of big gun hole plugging device for bang model test according to claim 1, is characterized in that the other end of described column type steel component has circular slotted eye.
5. a kind of big gun hole plugging device for bang model test according to claim 4, it is characterized in that in the circular slotted eye on described column type steel component can inserting bolt, by tighting a bolt to column type steel component applied thrust.
6. a kind of big gun hole plugging device for bang model test according to claim 1, it is characterized in that described " convex " type silica gel pad has well flexible and stickiness, under the extruding of column type steel component, certain distortion occur and fit very well with model test piece surface.
7. a kind of big gun hole plugging device for bang model test according to claim 1, it is characterized in that the combination of needs two coupled columns type steel component and " convex " type silica gel pad with the use of, be clamped in model test piece two side gun hole place respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521031057.4U CN205209376U (en) | 2015-12-11 | 2015-12-11 | A big gun hole plugging device for exploding model test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521031057.4U CN205209376U (en) | 2015-12-11 | 2015-12-11 | A big gun hole plugging device for exploding model test |
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| Publication Number | Publication Date |
|---|---|
| CN205209376U true CN205209376U (en) | 2016-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521031057.4U Expired - Fee Related CN205209376U (en) | 2015-12-11 | 2015-12-11 | A big gun hole plugging device for exploding model test |
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| CN (1) | CN205209376U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107576232A (en) * | 2017-08-14 | 2018-01-12 | 中国矿业大学(北京) | It is a kind of to reduce the device that blasting fume disturbs in explosively loading caustic thread test |
| CN109975141A (en) * | 2019-04-11 | 2019-07-05 | 中国矿业大学(北京) | A kind of Experiment Analysis System and method for test specimen strain in blasting process |
| CN110118699A (en) * | 2019-04-30 | 2019-08-13 | 广州供电局有限公司 | Cable armored cassette detection device |
| CN111595519A (en) * | 2019-02-21 | 2020-08-28 | 成都鼎桥通信技术有限公司 | Sealing detection jig and sealing detection method for porous shell |
| CN113654892A (en) * | 2021-08-31 | 2021-11-16 | 武汉大学 | Blasting dynamic response simulator |
-
2015
- 2015-12-11 CN CN201521031057.4U patent/CN205209376U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107576232A (en) * | 2017-08-14 | 2018-01-12 | 中国矿业大学(北京) | It is a kind of to reduce the device that blasting fume disturbs in explosively loading caustic thread test |
| CN111595519A (en) * | 2019-02-21 | 2020-08-28 | 成都鼎桥通信技术有限公司 | Sealing detection jig and sealing detection method for porous shell |
| CN109975141A (en) * | 2019-04-11 | 2019-07-05 | 中国矿业大学(北京) | A kind of Experiment Analysis System and method for test specimen strain in blasting process |
| CN110118699A (en) * | 2019-04-30 | 2019-08-13 | 广州供电局有限公司 | Cable armored cassette detection device |
| CN113654892A (en) * | 2021-08-31 | 2021-11-16 | 武汉大学 | Blasting dynamic response simulator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160504 Termination date: 20161211 |