CN206410669U - Rock sample radial deformation test device - Google Patents
Rock sample radial deformation test device Download PDFInfo
- Publication number
- CN206410669U CN206410669U CN201720118309.XU CN201720118309U CN206410669U CN 206410669 U CN206410669 U CN 206410669U CN 201720118309 U CN201720118309 U CN 201720118309U CN 206410669 U CN206410669 U CN 206410669U
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- Prior art keywords
- deformation
- rock sample
- annulus
- line
- sensing line
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Abstract
The utility model discloses a kind of rock sample radial deformation test device, the annulus of tangent setting is fixed and formed with rock sample outer wall during including capacitive means, deformation-sensing line and for measuring, deformation-sensing line one end is fixedly connected with annulus, and the other end is formed through the test connection end being connected for the test lead with capacitive means after the circle of rock sample outer wall at least one from the annulus；By the way that the deformation-sensing line annulus tangent with rock sample outer wall is fixed, and deformation-sensing line encloses around rock sample outer wall one and causes deformation-sensing line to be fitted completely with outer wall, the change of rock sample outer wall in process of the test is delivered to the test connection end of deformation-sensing line, so as to change the capacitance size of capacitive means, by demarcating the relation between capacitance variations and deformation, just deformed using the change accurate measurements of electric capacity to rock sample, so that working stability is realized, the high purpose of measuring accuracy.
Description
Technical field
The utility model is related to civil engineering technical field of measurement and test, more particularly to a kind of rock sample radial deformation test device.
Background technology
When carrying out rock mechanics experiment, it is necessary to be monitored to radial deformation, used extensometer is big at present
Majority is ring extensometer, and two edges of a knife of rock ring extensometer are stuck in the two ends of one group of chain, and chain is by elastic circlip
Rock sample outer ring is wound on, when rock sample expands and expanded outwardly, the opening displacement amount between the edge of a knife of measurement chain both ends
The as variable quantity of rock sample section girth.Existing ring extensometer can directly measure the perimeter change feelings of rock
Condition, but common problem is that extensometer termination rock of not fitted completely in the way of circular arc when monitoring circumferential deformation
Sample, so data measured and real data difference are larger, work is not sufficiently stable, and measurement error is big.
Accordingly, it would be desirable to be improved to existing rock sample radial deformation test device, it is set to be surveyed based on capacitance principle
Examination deformation energy reaches working stability, precision more accurately purpose.
Utility model content
In view of this, the utility model provides a kind of rock sample radial deformation test device, and it can be surveyed based on capacitance principle
Examination deformation energy reaches working stability, precision more accurately purpose.
Rock sample radial deformation test device of the present utility model, including capacitive means, deformation-sensing line and during for measuring
The annulus of tangent setting is fixed and is formed with rock sample outer wall, deformation-sensing line one end is fixedly connected with annulus, and the other end is around rock
Sample outer wall at least one is formed through the test connection end that is connected for the test lead with capacitive means after enclosing from annulus.
Further, in addition to the fixing line for being fixed with deformation-sensing line to annulus, fixing line one end forms outside solid
Fixed end, the other end is fixedly connected with annulus.
Further, fixing line is collinearly set and tangent with rock sample outer wall with deformation-sensing line.
Further, the tie point of fixing line and deformation-sensing line and annulus is radially symmetrical 2 points on annulus.
Further, fixing line and deformation-sensing line are non-metal wire.
Further, capacitive means include shell, spring, rigid contact bar and capacitance component, and rigid contact bar is with stretchable
The mobile mode for changing capacitance component capacitance size is arranged in housing and housing is stretched out in end, spring with measurement to deformation
There is the line of induction mode of certain pulling force to be arranged in shell and the formation of rigid contact bar is flexibly supported, and rigid contact bar stretches out
Shell one end is connected with the test connection end of deformation-sensing line.
Further, capacitive means also include being arranged on the magnet that outer casing bottom is used to be fixed on outside.
The beneficial effects of the utility model：Rock sample radial deformation test device of the present utility model, by by deformation-sensing
The line annulus tangent with rock sample outer wall is fixed, and deformation-sensing line encloses around rock sample outer wall one and make it that deformation-sensing line and outer wall are complete
The change of rock sample outer wall in laminating, process of the test is delivered to the test connection end of deformation-sensing line, so as to change capacitive means
Capacitance size, by demarcate capacitance variations and deformation between relation, just using electric capacity change accurate measurements to rock sample change
Shape, so that working stability is realized, the high purpose of measuring accuracy.
Brief description of the drawings
The utility model is further described with reference to the accompanying drawings and examples.
Fig. 1 is the utility model structural front view；
Fig. 2 is the utility model structure top view.
Embodiment
Fig. 1 is the utility model structural front view, and Fig. 2 is the utility model structure top view, as shown in the figure：The present embodiment
Rock sample radial deformation test device, including capacitive means 1, deformation-sensing line 2 and fixed during for measuring and with outside rock sample
Wall forms the annulus 3 of tangent setting, and the one end of deformation-sensing line 2 is fixedly connected with annulus 3, and the other end is enclosed around rock sample outer wall at least one
The test connection end being connected for the test lead with capacitive means 1 is formed through from annulus 3 afterwards；As illustrated, specific
During measurement, annulus 3 is set with rock sample outer wall into tangent, and the one end of deformation-sensing line 2 is connected with annulus 3, and the other end is around rock sample outer wall
After one circle and from being passed through with the tie point side of annulus 3, the test connection end of deformation-sensing line 2 is connected with capacitive means 1, such energy
Deformation-sensing line 2 is affixed on outer wall, measure correct deformation；The principle deformed based on capacity measurement, by demarcating capacitance variations
With the relation of deformation, so as to obtain the deformation of test sample, the wire of capacitive means 1 is connected and display data with computer；
In addition, annulus 3 is on the direction tangent with rock sample outer wall with the tangent anchor ring for referring to annulus 3 of rock sample outer wall, it is ensured that in experiment
During, with the deformation of rock sample, deformation-sensing line 2 remains conllinear with fixing line 4.
In the present embodiment, in addition to the fixing line 4 for being fixed with deformation-sensing line 2 to annulus 3, one end shape of fixing line 4
Into external stability end, the other end is fixedly connected with annulus 3；The one end of fixing line 4 is fixed, and the other end is connected with annulus 3, and length can
Changed according to experiment actual conditions, it coordinates with deformation-sensing line 2 makes annulus 3 and outer wall tangent, and keeps level.
In the present embodiment, fixing line 4 is collinearly set and tangent with rock sample outer wall with deformation-sensing line 2；Holding level.
In the present embodiment, the tie point of fixing line 4 and deformation-sensing line 2 and annulus 3 is radially symmetrical on annulus 3
2 points；Deformation-sensing line 2 is passed through with the tie point side of annulus 3 from it and then is connected with capacitive means 1 after the circle of side wall one, this
Sample allows for the test connection end of deformation-sensing line 2 and the external stability end of fixing line 4 into opposite direction on the same line
On.
In the present embodiment, fixing line 4 and deformation-sensing line 2 are non-metal wire；That is fixing line 4 and deformation-sensing line 2 is equal
Using ductility is small, flexible non-metal wire, it is ensured that will not be deformed in process of the test and influence test data.
In the present embodiment, capacitive means 1 include shell, spring, rigid contact bar and capacitance component, and rigid contact bar is with can
The mobile mode for changing capacitance component capacitance size of stretching is arranged in housing and housing is stretched out in end, and spring is with measurement pair
There is deformation-sensing line 2 mode of certain pulling force to be arranged in shell and the formation of rigid contact bar be flexibly supported, rigid contact
Bar stretches out shell one end and is connected with the test connection end of deformation-sensing line 2；Wherein, shell is insulation crust, and capacitance component includes
It is air dielectric to be oppositely arranged in the middle of two battery lead plates on the inside of insulation crust, battery lead plate, and two fixed plate electrodes pass through wire
It is connected with computer, by capacitance variations data acquisition and inputs to central processing unit, by computer software display data, is connect when rigidly
When feeler lever is stretched, direct facing area between two battery lead plates changes, so as to change the size of electric capacity, by demarcate electric capacity with just
Property contact bar displacement relation, so as to obtain the deformation of test sample；In addition, spring is had in test certain pulling force,
Ensure radially to become hour, deformation-sensing line 2 is fitted all the time with rock sample outer wall.
In the present embodiment, capacitive means 1 also include being arranged on the magnet that outer casing bottom is used to be fixed on outside；Magnet is used for
Fixed capacity is on test apparatus, it is ensured that capacitance level.
Finally illustrate, above example is only unrestricted to illustrate the technical solution of the utility model, although ginseng
The utility model is described in detail according to preferred embodiment, it will be understood by those within the art that, can be to this
The technical scheme of utility model is modified or equivalent substitution, without departing from the objective and model of technical solutions of the utility model
Enclose, it all should cover among right of the present utility model.
Claims (7)
1. a kind of rock sample radial deformation test device, it is characterised in that：During including capacitive means, deformation-sensing line and for measuring
The annulus of tangent setting is fixed and is formed with rock sample outer wall, described deformation-sensing line one end is fixedly connected with annulus, the other end
The test for being formed through being connected for the test lead with capacitive means from the annulus after the circle of rock sample outer wall at least one connects
Connect end.
2. rock sample radial deformation test device according to claim 1, it is characterised in that：Also include being used for and deformation-sensing
The fixing line that line is fixed to annulus, described fixing line one end forms external stability end, and the other end is fixedly connected with annulus.
3. rock sample radial deformation test device according to claim 2, it is characterised in that：The fixing line and the deformation
The line of induction is collinearly set and tangent with rock sample outer wall.
4. rock sample radial deformation test device according to claim 3, it is characterised in that：The fixing line and the deformation
The tie point of the line of induction and annulus is radially symmetrical 2 points on annulus.
5. rock sample radial deformation test device according to claim 4, it is characterised in that：The fixing line and the deformation
The line of induction is non-metal wire.
6. rock sample radial deformation test device according to claim 5, it is characterised in that：The capacitive means include outer
Shell, spring, rigid contact bar and capacitance component, rigid contact bar is in the way of stretchable mobile change capacitance component capacitance size
It is arranged in housing and housing is stretched out in end, the spring is set in the way of having certain pulling force to deformation-sensing line when in measurement
Put in shell and the formation of rigid contact bar is flexibly supported, the rigid contact bar stretches out shell one end and deformation-sensing line
Test connection end connection.
7. rock sample radial deformation test device according to claim 6, it is characterised in that：The capacitive means also include setting
Put is used to be fixed on outside magnet in outer casing bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720118309.XU CN206410669U (en) | 2017-02-08 | 2017-02-08 | Rock sample radial deformation test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720118309.XU CN206410669U (en) | 2017-02-08 | 2017-02-08 | Rock sample radial deformation test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206410669U true CN206410669U (en) | 2017-08-15 |
Family
ID=59557865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720118309.XU Expired - Fee Related CN206410669U (en) | 2017-02-08 | 2017-02-08 | Rock sample radial deformation test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206410669U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106813567A (en) * | 2017-02-08 | 2017-06-09 | 重庆科技学院 | Rock sample radial displacement measurement apparatus |
-
2017
- 2017-02-08 CN CN201720118309.XU patent/CN206410669U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106813567A (en) * | 2017-02-08 | 2017-06-09 | 重庆科技学院 | Rock sample radial displacement measurement apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170815 Termination date: 20190208 |
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| CF01 | Termination of patent right due to non-payment of annual fee |