CN206248027U - Measure the device of rock endoporus radial deformation - Google Patents
Measure the device of rock endoporus radial deformation Download PDFInfo
- Publication number
- CN206248027U CN206248027U CN201621399618.0U CN201621399618U CN206248027U CN 206248027 U CN206248027 U CN 206248027U CN 201621399618 U CN201621399618 U CN 201621399618U CN 206248027 U CN206248027 U CN 206248027U
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- disk
- electrode plate
- radial deformation
- rock
- ring
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Abstract
The utility model discloses it is a kind of measure rock endoporus radial deformation device, including can be positioned in rock sample endoporus to be measured and can deform with rock sample endoporus radial deformation to be measured ring-type extensometer, for make the ring-type extensometer be attached at rock sample inner hole wall to be measured adhering device and for sense ring-type extensometer deformation sensor.The device of measurement rock endoporus radial deformation of the present utility model, can be positioned in rock sample endoporus to be measured, and be provided with adhering device so that extensometer is in close contact with rock sample endoporus inwall to be measured, and measurement rock sample endoporus radial deformation facilitates, and measurement result is accurate.
Description
Technical field
The utility model is related to a kind of rock sample deformation test device, more particularly to a kind of measurement rock endoporus radial deformation
Device.
Background technology
When the rock mechanics for carrying out endoporus are tested, it is necessary to the deformation to endoporus is tested, due to rock sample
Hole size is small, and closed state is in when endoporus is tested, and is difficult directly to monitor its deformation, and extensometer is not easy to be fixed on rock
In sample internal orifice dimension, measurement endoporus radial deformation is very inconvenient and measurement result is not accurate.
Therefore, it is necessary to be improved extensometer of the prior art, make it easier to detect rock sample endoporus radial deformation,
And measurement result is accurate.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of device for measuring rock endoporus radial deformation, makes it
It is easy to detect rock sample endoporus radial deformation, and measurement result is accurate.
The device of measurement rock endoporus radial deformation of the present utility model, including can be positioned in rock sample endoporus to be measured and can
The ring-type extensometer that deforms with rock sample endoporus radial deformation to be measured, for making the ring-type extensometer be attached in rock sample to be measured
The adhering device of hole wall and the sensor for sensing the deformation of ring-type extensometer；
The ring-type is extended and is calculated as the annulus for being provided with opening, and annulus open at one end is provided with slide bar, and the slide bar can be along it
Itself axially opposing opening other end single-degree-of-freedom is slided.
Further, the adhering device includes main framing, secondary skeleton, the first disk and the second disk；First disk,
The center of circle of the second disk and the ring-type extensometer three is conllinear, and the distance of the second disk to ring-type extensometer is less than the first disk
To the distance of ring-type extensometer, extension spring is provided between the first disk and the second disk；One end of the main framing is hinged
In the ring-type extensometer, the other end is articulated with the first disk；One end of described skeleton is articulated with the second disk, other end hinge
It is connected to main framing.
Further, the one side of second disk dorsad the first disk is provided with support bar.
Further, the sensor capacitance formula sensor, the electric capacity of the capacitance type sensor can be with the sliding bar
And change.
Further, the capacitance type sensor includes being arranged at the battery lead plate of the annulus opening without slide bar end, the electricity
Pole plate includes first electrode plate and second electrode plate, and the slide bar stretches between first electrode plate and second electrode plate and can be along it
Itself is axially slided in electrode plate surface single-degree-of-freedom.
Further, the diameter of axle of the slide bar is less than the distance between first electrode plate and second electrode plate, and slide bar is near electricity
The end diameter of axle of pole plate is increased to can contact the slide plate to be formed and can be slided along electrode plate surface single-degree-of-freedom with battery lead plate.
Further, also including spacing between the first electrode plate and second electrode plate for preventing the slide plate from skidding off
Device.
Further, the stopping means includes the spring being arranged between the slide plate and annulus openend.
Further, the stopping means is also spacing between the first electrode plate and second electrode plate including being arranged at
Plate.
The beneficial effects of the utility model：The device of measurement rock endoporus radial deformation of the present utility model, can be positioned over
In rock sample endoporus to be measured, and adhering device is provided with so that extensometer is in close contact with rock sample endoporus inwall to be measured, measure rock
Sample endoporus radial deformation is convenient, and measurement result is accurate.
Brief description of the drawings
The utility model is further described with reference to the accompanying drawings and examples：
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the mplifying structure schematic diagram near capacitance type sensor in Fig. 2.
Specific embodiment
Fig. 1 be structural representation of the present utility model, Fig. 2 for Fig. 1 top view, Fig. 3 be Fig. 2 in capacitance type sensor it is attached
Near mplifying structure schematic diagram, as shown in the figure：The device of measurement rock endoporus radial deformation of the present utility model, including can place
In in rock sample endoporus to be measured and can deform with rock sample endoporus radial deformation to be measured ring-type extensometer 2, for making the ring-type
Extensometer 2 is attached at the adhering device and the sensor 3 for sensing the deformation of ring-type extensometer 2 of rock sample inner hole wall to be measured；Ring-type
Extensometer 2 is to be provided with the annulus of opening, and annulus open at one end is provided with slide bar 2-1, and slide bar 2-1 axially opposing can be opened along its own
Mouth other end single-degree-of-freedom is slided, and causes annulus to increase or reduce to realize ring-type extensometer 2 with rock to be measured by sliding bar
Sample endoporus radial deformation and deform；Sensor 3 can select capacitance type sensor, resistance sensor or optical pickocff, when
Right sensor can connect and connect the ancillary equipment such as central processing unit and display and be easy to observation to calibrate to deformation numerical value；Test rock
Ring-type extensometer is put into rock sample internal orifice dimension to be measured during sample endoporus radial direction deformation, ring-type extensometer is attached by adhering device
In rock sample endoporus hole wall to be measured, rock sample endoporus radial deformation to be measured causes ring-type extensometer to become big or diminish, and ring-type extensometer becomes
It is big or diminish and cause sliding bar, then ring sliding bar is measured by sensor be scaled rock sample endoporus radial deformation, it is also possible to
By ring-type extensometer be designed as in the prior art other can become structure that is big or diminishing；The utility model can be positioned over rock to be measured
In sample endoporus, measurement rock sample endoporus radial deformation is convenient, and measurement result is accurate.
In the present embodiment, the adhering device includes main framing 1, secondary skeleton 6, the first disk 4 and the second disk 7；It is described
The center of circle of the first disk 4, the second disk 7 and the three of ring-type extensometer 2 is conllinear, the second disk 7 to ring-type extensometer away from
With a distance from less than the first disk 4 to ring-type extensometer, extension spring 5 is provided between the first disk 4 and the second disk 7；Institute
The one end for stating main framing 1 is articulated with the ring-type extensometer 2, and the other end is articulated with the first disk 4；Described one end of skeleton 6
The second disk 7 is articulated with, the other end is articulated with main framing 1；Under the pulling force effect of extension spring, the first disk and the second disk
There is close trend so that secondary skeleton promotes the trend that main framing formation is expanded outwardly to be pasted all the time so as to ensure ring-type extensometer
Rock sample inner hole wall to be measured is invested, stress can be passed to main framing by ring-type extensometer when rock sample endoporus hole wall deformation to be measured reduces
And secondary skeleton causes the increase of distance between the first disk and the second disk the level of stretch of extension spring is increased to enter row buffering,
And due to the transmission by main framing and time skeleton, when rock sample endoporus to be measured radially diminishes, adhering device is extended to ring-type
The resistance for counting deformation is small；This structure ensures that no matter radial displacement becomes big or diminishes in experimentation, can paste ring-type extensometer
In hole wall, correct deformation is measured.
In the present embodiment, the one side of second disk 7 dorsad the first disk 4 is provided with support bar 8, and support bar 8 can be with
The structure of adjustable in length is set to, concrete structure uses prior art, no longer repeated herein；Support bar 8 can be with
Fixed and support adhering device, makes its structure more stablize, and pulls support bar 8 to increase the level of stretch of extension spring 5, so that
Ring-type extensometer 2 diminishes, and is easy to for ring-type extensometer 2 to be put into rock sample endoporus to be measured or is taken out from rock sample endoporus to be measured.
In the present embodiment, the capacitance type sensor of the sensor 3, its electric capacity can change with sliding bar；Can be in cunning
The front of motor of bar sets a first electrode plate axially vertical with slide bar, set without slide bar end in ring-type extensometer opening and
The parallel second electrode plate (not indicated in figure) of first electrode plate, the change for causing distance between battery lead plate by sliding bar is drawn
Capacitance variations are played, result is measured by the relation between capacitance variations and the deformation of ring-type extensometer is demarcated, it is also possible to set
Other structures for causing capacitive sensor electrode plate facing area or relative distance to change with sliding bar are set to, can be real
Existing the purpose of this utility model；Capacitance type sensor high impedance, low power feature make the minimum energy that its needs is input into, and can feel
The micro-strain of rock sample endoporus radial direction should be arrived, sensitivity is good；Itself generates heat for capacitance type sensor relative resistance formula sensor
It is small, thus temperature stability is good；Due to the electrostatic attraction very little between battery lead plate, moving part does that can to obtain very little very thin, therefore
Its intrinsic frequency is very high, and dynamic response time is short, can be advantageously implemented to rock sample endoporus radially in several megahertzs of operation at frequencies
The dynamic measurement of deformation.
In the present embodiment, the capacitance type sensor includes being arranged at the battery lead plate of the annulus opening without slide bar end, institute
Stating battery lead plate includes first electrode plate 31 and the second electrode plate 32 that is parallel to each other with first electrode plate, and the slide bar 21 stretches into the
Between one battery lead plate 31 and second electrode plate 32 and can along its own axial direction electrode plate surface single-degree-of-freedom slide, certain slide bar
21 are needed to be made of the exhausted magnetic material of insulation, and medium can be directly used air as between battery lead plate；Can when slide bar 21 is slided
With the change for causing the change of facing area between first electrode plate 31 and second electrode plate 32 so as to cause electric capacity, according to formula
Electric capacity C=ε S/d (ε is the dielectric constant of medium between battery lead plate, and S is pole plate facing area, and d is the distance between battery lead plate), work as ε
It is linear relationship between the change of electric capacity C and the change of facing area S during with d for fixed value, is easy to demarcate.
In the present embodiment, the diameter of axle of the slide bar 21 is less than the distance between first electrode plate 31 and second electrode plate 32,
Slide bar 21 is increased near the end diameter of axle of battery lead plate can be contacted to be formed and can be slided along electrode plate surface single-degree-of-freedom with battery lead plate
Slide plate；Reduce the friction area between slide bar and battery lead plate so as to reduce the error that friction is caused to electric capacity.
In the present embodiment, also including for prevent the slide plate skid off the first electrode plate 31 and second electrode plate 32 it
Between stopping means；When the increase of ring-type extensometer causes slide bar to skid off between first electrode plate and second electrode plate, electric capacity is not
Change with the slip of slide bar again, beyond range of the present utility model.
In the present embodiment, the stopping means includes being arranged at spring between the slide plate and annulus openend, can be with
In slide plate and without compression spring 34 is set between slide bar end, extension spring (figure can also be set in slide plate and between having slide bar end
In do not indicate)；The structure not only can anti-limited slip plate skid off between the first electrode plate and second electrode plate, can also aid in
Play the pretension effect that ring-type extensometer is attached at rock sample endoporus hole wall to be measured.
In the present embodiment, the stopping means also includes being arranged between the first electrode plate 31 and second electrode plate 32
Limiting plate 33；Prevent ring-type extensometer from deforming excessive and causing spring to exceed elastic deformation scope.
Finally illustrate, above example is only used to illustrate the technical solution of the utility model and unrestricted, although ginseng
The utility model has been 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, without deviating from the objective and model of technical solutions of the utility model
Enclose, it all should cover in the middle of right of the present utility model.
Claims (10)
1. it is a kind of measure rock endoporus radial deformation device, it is characterised in that：Including that can be positioned in rock sample endoporus to be measured simultaneously
The ring-type extensometer that can deform with rock sample endoporus radial deformation to be measured, for making the ring-type extensometer be attached at rock sample to be measured
The adhering device of inner hole wall and the sensor for sensing the deformation of ring-type extensometer.
2. it is according to claim 1 measurement rock endoporus radial deformation device, it is characterised in that：The ring-type extensometer
To be provided with the annulus of opening, annulus open at one end is provided with slide bar, and the slide bar can be along its own axially opposing opening other end
Single-degree-of-freedom is slided.
3. it is according to claim 2 measurement rock endoporus radial deformation device, it is characterised in that：The adhering device bag
Include main framing, secondary skeleton, the first disk and the second disk；First disk, the second disk and the ring-type extensometer three
The center of circle it is conllinear, the distance of the second disk to ring-type extensometer is less than the first disk to the distance of ring-type extensometer, the first disk
And second be provided with extension spring between disk；One end of the main framing is articulated with the ring-type extensometer, and the other end is hinged
In the first disk；One end of described skeleton is articulated with the second disk, and the other end is articulated with main framing.
4. it is according to claim 3 measurement rock endoporus radial deformation device, it is characterised in that：The second disk back of the body
The one side of the first disk is provided with support bar.
5. it is according to claim 1 it is a kind of measure rock endoporus radial deformation device, it is characterised in that：The sensor
Capacitance type sensor, the electric capacity of the capacitance type sensor can change with the sliding bar.
6. it is according to claim 5 measurement rock endoporus radial deformation device, it is characterised in that：The capacitive sensing
Device includes being arranged at the battery lead plate of the annulus opening without slide bar end, and the battery lead plate includes first electrode plate and second electrode
Plate, the slide bar stretches between first electrode plate and second electrode plate and can be along its own axial direction in electrode plate surface single-degree-of-freedom
Slide.
7. it is according to claim 6 measurement rock endoporus radial deformation device, it is characterised in that：The diameter of axle of the slide bar
Less than the distance between first electrode plate and second electrode plate, slide bar is increased near the end diameter of axle of battery lead plate can be with battery lead plate
Contact forms the slide plate that can be slided along electrode plate surface single-degree-of-freedom.
8. it is according to claim 7 measurement rock endoporus radial deformation device, it is characterised in that：Also include for preventing
The slide plate skids off the stopping means between the first electrode plate and second electrode plate.
9. it is according to claim 8 measurement rock endoporus radial deformation device, it is characterised in that：The stopping means bag
Include the spring being arranged between the slide plate and annulus openend.
10. it is according to claim 9 measurement rock endoporus radial deformation device, it is characterised in that：The stopping means
Also include the limiting plate being arranged between the first electrode plate and second electrode plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621399618.0U CN206248027U (en) | 2016-12-19 | 2016-12-19 | Measure the device of rock endoporus radial deformation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621399618.0U CN206248027U (en) | 2016-12-19 | 2016-12-19 | Measure the device of rock endoporus radial deformation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206248027U true CN206248027U (en) | 2017-06-13 |
Family
ID=59008628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621399618.0U Expired - Fee Related CN206248027U (en) | 2016-12-19 | 2016-12-19 | Measure the device of rock endoporus radial deformation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206248027U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106595468A (en) * | 2016-12-19 | 2017-04-26 | 重庆科技学院 | Apparatus for testing radial deformation of inner pore of built-in rock sample |
| CN112554871A (en) * | 2020-11-26 | 2021-03-26 | 中国科学院武汉岩土力学研究所 | Drilling hole diameter measuring device and measuring method thereof |
| CN112629398A (en) * | 2020-11-23 | 2021-04-09 | 南方科技大学 | Device and system for measuring radial deformation of rock soil |
-
2016
- 2016-12-19 CN CN201621399618.0U patent/CN206248027U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106595468A (en) * | 2016-12-19 | 2017-04-26 | 重庆科技学院 | Apparatus for testing radial deformation of inner pore of built-in rock sample |
| CN112629398A (en) * | 2020-11-23 | 2021-04-09 | 南方科技大学 | Device and system for measuring radial deformation of rock soil |
| CN112629398B (en) * | 2020-11-23 | 2022-08-26 | 南方科技大学 | Device and system for measuring radial deformation of rock soil |
| CN112554871A (en) * | 2020-11-26 | 2021-03-26 | 中国科学院武汉岩土力学研究所 | Drilling hole diameter measuring device and measuring method thereof |
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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: 20170613 Termination date: 20191219 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |