CN204439504U - A kind of pressure-bearing frame of true triaxial permeability determination cube rock sample - Google Patents
A kind of pressure-bearing frame of true triaxial permeability determination cube rock sample Download PDFInfo
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- CN204439504U CN204439504U CN201520144719.2U CN201520144719U CN204439504U CN 204439504 U CN204439504 U CN 204439504U CN 201520144719 U CN201520144719 U CN 201520144719U CN 204439504 U CN204439504 U CN 204439504U
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- pressure
- rock sample
- bearing
- cube rock
- true triaxial
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Abstract
The utility model relates to a kind of pressure-bearing frame of true triaxial permeability determination cube rock sample, it is characterized in that: cube rock sample is placed in the pressure-bearing Rack Body of closed cylindrical shape, described pressure-bearing frame upper and lower part is bearing plate, bearing plate is provided with a circle king-bolt hole in order to connect and fixed stress charger, and pressure-bearing machine frame inside surrounding and upper and lower position are provided with arc cushion block.Open a circular channel in the middle part of described arc cushion block, be connected with hydraulic cylinder, around described circular channel, be provided with clip, be provided with a circle stove bolt hole in clip in order to be closely connected circular channel and hydraulic cylinder.The utility model effectively can solve pressure in indoor cube rock sample true triaxial permeability determination process and transmit uneven problem, reduces empirical risk, greatly improves stability and the accuracy of indoor cube rock sample true triaxial permeability determination.
Description
Technical field
The utility model relates to a kind of pressure-bearing frame, especially a kind of pressure-bearing frame of true triaxial permeability determination cube rock sample.
Background technology
Pressure-bearing frame is the important component part of rock sample permeability determination device.Conventional plan three-axis penetration rate determinator is cylindric, and the bearing plate being fixed on device both sides can produce microdeformation in stress applying process, causes the Stress non-homogeneity distribution being carried in rock sample surface, affects experimental result.Existing true triaxial permeability determination device generally adopts three pairs of parallel boot plates to apply pressure to six of cube rock sample faces, the rule of the load plate that this three couple is parallel or rigid boundary is dull and stereotyped, or the irregular flat board of flexible boundary, but they respectively have shortcoming: when larger stress loading is when the regular washer of rigid boundary, not only can produce friction loss between flat board and rock sample, but also the uneven distribution of stress can be caused in the corner of rock sample; Equally, when larger stress loading then can produce irregular deformation when the irregular washer of flexible boundary, the accuracy of permeability determination is greatly reduced.
Utility model content
The purpose of this utility model overcomes the deficiencies in the prior art, a kind of pressure-bearing frame of true triaxial permeability determination cube rock sample is provided, efficiently solve pressure in indoor cube rock sample true triaxial permeability determination process and transmit uneven problem, reduce empirical risk, substantially increase stability and the accuracy of indoor cube rock sample true triaxial permeability determination.
According to the technical scheme that the utility model provides, the pressure-bearing frame of described true triaxial permeability determination cube rock sample, it is characterized in that: cube rock sample is placed in the pressure-bearing Rack Body of closed cylindrical shape, in described pressure-bearing frame, bottom is bearing plate, bearing plate is provided with a circle king-bolt hole in order to connect and fixed stress charger, pressure-bearing machine frame inside surrounding and upper and lower position are provided with arc cushion block, a circular channel is opened in the middle part of described arc cushion block, be connected with hydraulic cylinder, clip is provided with around described circular channel, a circle stove bolt hole is provided with in order to be closely connected circular channel and hydraulic cylinder in clip.
The utility model has the advantages that: (1) arc cushion block can effectively disperse the stress of corner to concentrate, and keeps bearing plate not deform; (2) reduce the friction loss in stress loading process between bearing plate and rock sample, improve the degree of accuracy of experiment.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment perspective view.
Fig. 2 is the top plan view of the utility model embodiment three-dimensional structure diagram.
Fig. 3 is the sectional view of Fig. 2 along vertical centering control axis.
Fig. 4 is the structural drawing of arc cushion block.
In figure, 1-cube rock sample; 2-bearing plate; 3-king-bolt hole; 4-clip; 5-stove bolt hole; 6-arc cushion block; 7-circular channel; 8-hydraulic cylinder.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in detail:
A kind of pressure-bearing frame of true triaxial permeability determination cube rock sample mainly comprises cube rock sample 1, bearing plate 2, king-bolt hole 3, clip 4, stove bolt hole 5, arc cushion block 6, circular channel 7, hydraulic cylinder 8.
Cube rock sample 1 is placed in pressure-bearing Rack Body, when the stress loading device in the upper and lower orientation of pressure-bearing frame starts cube rock sample 1 on-load pressure, first stress loading device is seated on the bearing plate 2 of pressure-bearing frame upper and lower parts, effectively can cushion the heavy burden of stress loading device to pressure-bearing frame like this.After the relative position of stress loading device and bearing plate 2 is fixing, nut is screwed in the circle king-bolt hole 3 on bearing plate 2 with the position of fixed stress charger.When hydraulic cylinder in stress loading device 8 pairs of cube rock samples 1 apply pressure, hydraulic cylinder 8 first by the circular channel 7 on arc cushion block 6 by pressure-loaded on arc cushion block 6, arc cushion block 6 is provided with clip 4, there is again a circle stove bolt hole 5 in clip 4, can screw in stove bolt hole 5 with nut when hydraulic cylinder 8 contacts with arc cushion block 6 like this and cause stress loading failure in order to be closely connected circular channel 7 and hydraulic cylinder 8 thus to prevent device in stress loading to be subjected to displacement.Pressure can be passed to the cube rock sample 1 of close contact with it thus reach uniform load pressure by arc cushion block 6 uniformly, reduces the object of experiment risk.
Claims (5)
1. the pressure-bearing frame of a true triaxial permeability determination cube rock sample, it is characterized in that: cube rock sample is placed in the pressure-bearing Rack Body of closed cylindrical shape, described pressure-bearing frame upper and lower part is bearing plate, bearing plate is provided with a circle king-bolt hole in order to connect and fixed stress charger, pressure-bearing machine frame inside surrounding and upper and lower position are provided with arc cushion block, a circular channel is opened in the middle part of described arc cushion block, be connected with hydraulic cylinder, be provided with clip around described circular channel, be provided with a circle stove bolt hole in clip in order to be closely connected circular channel and hydraulic cylinder.
2. the pressure-bearing frame of true triaxial permeability determination cube rock sample according to claim 1, is characterized in that: cube rock sample is placed in the pressure-bearing Rack Body of closed cylindrical shape.
3. the pressure-bearing frame of true triaxial permeability determination cube rock sample according to claim 2, it is characterized in that: described pressure-bearing frame upper and lower part is bearing plate, bearing plate is provided with a circle king-bolt hole in order to connect and fixed stress charger, and pressure-bearing machine frame inside surrounding and upper and lower position are provided with arc cushion block.
4. the pressure-bearing frame of true triaxial permeability determination cube rock sample according to claim 3, is characterized in that: open a circular channel in the middle part of described arc cushion block, be connected with hydraulic cylinder.
5. the pressure-bearing frame of true triaxial permeability determination cube rock sample according to claim 4, is characterized in that: be provided with clip around described circular channel, is provided with a circle stove bolt hole in order to be closely connected circular channel and hydraulic cylinder in clip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520144719.2U CN204439504U (en) | 2015-03-16 | 2015-03-16 | A kind of pressure-bearing frame of true triaxial permeability determination cube rock sample |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520144719.2U CN204439504U (en) | 2015-03-16 | 2015-03-16 | A kind of pressure-bearing frame of true triaxial permeability determination cube rock sample |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204439504U true CN204439504U (en) | 2015-07-01 |
Family
ID=53607357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520144719.2U Expired - Fee Related CN204439504U (en) | 2015-03-16 | 2015-03-16 | A kind of pressure-bearing frame of true triaxial permeability determination cube rock sample |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204439504U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018141236A1 (en) * | 2017-02-06 | 2018-08-09 | 江苏拓创科研仪器有限公司 | Hydraulic fracturing combined carrying test device |
-
2015
- 2015-03-16 CN CN201520144719.2U patent/CN204439504U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018141236A1 (en) * | 2017-02-06 | 2018-08-09 | 江苏拓创科研仪器有限公司 | Hydraulic fracturing combined carrying test device |
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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 |
Granted publication date: 20150701 Termination date: 20170316 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |