CN218823657U - Segmentation confined pressure auxiliary device is applyed to no axial compression of cylindrical rock sample - Google Patents
Segmentation confined pressure auxiliary device is applyed to no axial compression of cylindrical rock sample Download PDFInfo
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- CN218823657U CN218823657U CN202222810935.9U CN202222810935U CN218823657U CN 218823657 U CN218823657 U CN 218823657U CN 202222810935 U CN202222810935 U CN 202222810935U CN 218823657 U CN218823657 U CN 218823657U
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Abstract
The utility model discloses a no axle load of cylindrical rock appearance is applyed segmentation and is enclosed pressure auxiliary device mainly including supporting base, pressure-bearing slide rail, first enclosed pressure device, second enclosed pressure device and other auxiliary device. An oil tank, a first oil cylinder and a horizontal positioning chute are arranged in the supporting base. The bearing slide rail is connected with the supporting base through a first coupler, and a segmented positioning slide rail and an electromagnetic relay are arranged in the bearing slide rail. The first confining pressure device is fixedly connected with the pressure-bearing slide rail through a fixed buckle, and the second confining pressure device is connected in the first confining pressure device. And a tabletting and a feedback control system are arranged in the second confining pressure device. The utility model discloses utilize first confined pressure device and second confined pressure device to mutually support, can convenient and fast exert even confined pressure to the cylindric rock sample to can exert the segmentation confined pressure under no axle pressure state, help obtaining more accords with the uneven engineering state of deep rock mass atress, improve the experiment effect.
Description
Technical Field
The utility model belongs to the technical field of the experimental auxiliary device of rock mechanics, specifically a section confined pressure auxiliary device is applyed to no axle load of cylindrical rock sample.
Background
In order to guarantee future energy safety in China, exploitation and utilization of deep resources have risen to the strategic position of China. In order to safely and efficiently exploit and utilize deep-land energy, researches on physical and mechanical characteristics, deformation mechanisms, failure modes and the like of deep-land rock masses must be carried out. Because the deep rock mass is in complex environments such as high temperature, high stress, water adding and the like, more real test data and results can be obtained only based on the engineering environment of the deep rock mass in laboratory tests.
At present, a great deal of research work has been carried out on the complex engineering environment of deep rock masses, for example, a true triaxial dynamic compression shear test device and method for rock under the condition of deep complex structure exist at present, which can simulate the condition of 5000-meter buried depth ground stress and is used for simulating the state of the rock under the condition of deep complex structure; for another example, at present, there is a thermal-hydraulic-mechanical coupling triaxial experimental apparatus for dynamic impact compression of rock-soil mass, which can simulate a multi-field coupling environment to perform dynamic mechanical property experiments of rocks under complex conditions. Through comparative analysis, the current test device and method can find that the actual state of the deep rock mass with uneven stress is not fully considered, the same confining pressure is applied to the same rock sample, and the research on the physical and mechanical properties of the rock under the segmented confining pressure state is not carried out; in addition, the loading confining pressure mode of the existing confining pressure loading device is complex, the applied confining pressure effect is poor, and the accuracy of the test result is influenced.
Therefore, based on the above problem, the utility model provides a no axial compression of cylinder rock specimen applys segmentation confined pressure auxiliary device.
Disclosure of Invention
Technical problem to be solved
The utility model provides a no axle load of cylindrical rock sample is applyed segmentation confined pressure auxiliary device to solve current rock mechanics test equipment and can not apply segmentation confined pressure and the confined pressure effect of applying poor, the inefficiency, influence test result scheduling problem.
(II) technical scheme
The utility model discloses a no axle load of cylindrical rock sample applys segmentation confined pressure auxiliary device, the device is including supporting base, pressure-bearing slide rail, first confined pressure device, second confined pressure device and other auxiliary device, its characterized in that: the upper end of the supporting base is connected with a pressure-bearing slide rail, a first confining pressure device is arranged in the pressure-bearing slide rail, and a second confining pressure device is arranged in the first confining pressure device; wherein:
two oil tanks are symmetrically arranged on the supporting base, an oil outlet pipe and an oil return pipe are respectively arranged at the lower part and the upper part of the side surface of each oil tank, and a supporting baffle is arranged at the upper end of each oil tank; first oil cylinders are respectively arranged on the lower sides of the two oil tanks, first piston rods are connected in the first oil cylinders, the first piston rods are fixed in the circular guide rails, and one ends of the first piston rods are connected with telescopic fixing claws; second oil cylinders are symmetrically arranged on two sides of the oil tank, second piston rods are arranged in the second oil cylinders, horizontal positioning chutes are connected to the top ends of the second piston rods, and first screw rods and first servo motors are arranged inside the horizontal positioning chutes and at one ends of the horizontal positioning chutes respectively and are connected with each other; the first screw rod is connected with a horizontal position adjusting slide block, a hydraulic motor fixing sleeve is arranged on the horizontal position adjusting slide block, and a hydraulic motor is arranged in the hydraulic motor fixing sleeve;
a second servo motor, a second screw rod, a segmented position adjusting slide rail and a guide slide bar are arranged in the pressure-bearing slide rail, the second servo motor is fixed at the bottom end of the pressure-bearing slide rail and connected with the segmented position adjusting slide rail, and the second screw rod is fixed in the segmented position adjusting slide rail and connected with the second servo motor through a second coupler; the second screw rod is connected with a segmented position adjusting sliding block, an electromagnetic relay is arranged in the segmented position adjusting sliding block, the segmented position adjusting sliding block is connected with a tensioning buckle, and the guide sliding rods are symmetrically distributed in the pressure-bearing sliding rail;
an annular oil tank, a first confining pressure controller, a first confining pressure oil inlet pipe, a first confining pressure oil cylinder, a first confining pressure oil return pipe and a first confining pressure piston rod are arranged in the first confining pressure device and are connected with one another, and U-shaped guide rods are symmetrically arranged on one side of the annular oil tank;
and a second confining pressure controller, a feedback control system, a rectangular oil tank, an integrated oil cylinder, a second confining pressure piston rod, a pressing sheet and a second confining pressure oil return pipe are arranged in the second confining pressure device and are connected with each other.
Preferably, the supporting baffle is provided with a rock sample placing platform.
Preferably, the annular oil tank is symmetrically provided with oil inlet external ports.
Preferably, the pressure-bearing slide rail is connected with the support base through a first coupler.
Preferably, the first confining pressure device is connected with the pressure-bearing sliding rail through a fixed buckle.
Preferably, the second confining pressure device is connected with the first confining pressure device through a first confining pressure piston rod.
Preferably, the number of the first confining pressure oil cylinders in the first confining pressure device is 36, and the effective stroke of the first confining pressure oil cylinders is 0-20 mm.
Preferably, the number of the pressing sheets in the second confining pressure device is 40, each pressing sheet is connected with 6 second confining pressure piston rods, the pressing sheet material is alloy steel, and the outer surface of the pressing sheet material is provided with a layer of flexible material.
(III) advantageous effects
1) The utility model provides a no axle load of cylindrical rock sample applys segmentation confined pressure auxiliary device through the cooperation between first confined pressure device and second confined pressure device, can applys the segmentation confined pressure to cylindrical rock sample under no axle pressure condition, is favorable to imitating the inhomogeneous engineering state of deep ground rock body atress better, obtains the experimental data and the result that accord with reality more, provides more reliable theoretical reference for engineering practice.
2) This device utilizes the preforming of integrated form to exert the confining pressure to the cylindrical rock sample to the preforming surface is with flexible material, can be better with the laminating of rock sample, helps exerting even reliable confining pressure, improves the accuracy of test result.
3) The device can feed back the change condition of the confining pressure of the cylindrical rock sample in real time when the confining pressure is applied, and finishes data arrangement and model drawing through a system in a computer, so that real-time visual monitoring of the cylindrical rock sample in the test is realized.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic cross-sectional view of a pressure-bearing slide rail.
Fig. 3 is a schematic structural view of the first confining pressure device.
Fig. 4 is a schematic structural view of the second confining pressure device.
Fig. 5 is a schematic view of the working structure of the utility model when installing rock sample.
Fig. 6 is a schematic diagram of the working structure of the present invention during horizontal loading.
Fig. 7 is a schematic diagram of the working structure of the present invention during vertical loading.
Element number description: 1. a support base; 2. a pressure-bearing slide rail; 3. a first confining pressure device; 4. a second confining pressure device; 5. an oil tank; 6. an oil outlet pipe; 7. an oil return pipe; 8. a support baffle; 9. a first oil cylinder; 10. a first piston rod; 11. a circular guide rail; 12. a fixed jaw; 13. a second oil cylinder; 14. a second piston rod; 15. a horizontal positioning chute; 16. a first lead screw; 17. a first servo motor; 18. a first coupling; 19. a hydraulic motor; 20. a hydraulic motor fixing sleeve; 21. a horizontal position-adjusting slide block; 22. a second servo motor; 23. a second coupling; 24. a second lead screw; 25. a slide rail is adjusted in a segmented mode; 26. a segmented position adjusting slide block; 27. an electromagnetic relay; 28. tensioning the buckle; 29. a guide slide bar; 30. fixing the buckle; 31. an annular fuel tank; 32. a first confining pressure controller; 33. a first confining pressure oil inlet pipe; 34. a first confining pressure oil cylinder; 35. a first confining pressure oil return pipe; 36. a U-shaped guide bar; 37. a first confining pressure piston rod; 38. a second confining pressure controller; 39. a feedback control system; 40. a rectangular oil tank; 41. an integrated oil cylinder; 42. a second confining pressure piston rod; 43. tabletting; 44. a second confining pressure oil return pipe; 45. an oil inlet external port; 46. a rock sample placement table; 47. a cylindrical rock sample.
Detailed Description
The embodiments are described for better understanding of the technical contents of the present invention, and the contents are only a part of the preferred embodiments of the technical solutions of the present invention, and are not used to limit the technical contents of the present invention. All other embodiments obtained by a person skilled in the art without making any creative effort based on the preferred embodiments listed in the present disclosure belong to the protection scope of the present disclosure.
As shown in fig. 1-4, the utility model discloses a no axle load of cylindrical rock sample applys segmentation confined pressure auxiliary device, the device is including supporting base 1, pressure-bearing slide rail 2, first confined pressure device 3, second confined pressure device 4, its characterized in that: the upper end of the supporting base 1 is connected with a pressure-bearing slide rail 2, a first confining pressure device 3 is arranged inside the pressure-bearing slide rail 2, and a second confining pressure device 4 is arranged inside the first confining pressure device 3.
Support and be equipped with two oil tanks 5 on the base 1 symmetrically, 5 side lower parts of oil tank and upper portion are equipped with out oil pipe 6 respectively and return oil pipe 7, and 5 upper ends of oil tank are equipped with supporting baffle 8, and supporting baffle 8 is last to be equipped with the rock specimen and to place platform 46, and cylindrical rock specimen 47 is exerted and is arranged in the rock specimen before the confined pressure and place on the platform 46.
The lower sides of the two oil tanks 5 are respectively provided with a first oil cylinder 9, a first piston rod 10 is connected in the first oil cylinder 9, the first piston rod 10 is fixed in a circular guide rail 11, one end of the first piston rod is connected with a telescopic fixing claw 12, and the fixing claw 12 can fix the device. The two sides of the oil tank 5 are symmetrically provided with second oil cylinders 13, and the second oil cylinders 13 are sequentially connected with a second piston rod 14, a horizontal positioning chute 15, a first screw rod 16, a first servo motor 17 and a horizontal positioning slide block 21 which are matched with each other to adjust the height and the horizontal position of the cylindrical rock sample 47. The horizontal positioning sliding block 21 is provided with a first coupler 18, a hydraulic motor 19 and a hydraulic motor fixing sleeve 20, the pressure-bearing sliding rail 2 is connected with the supporting base 1 through the first coupler 18, and the hydraulic motor 19 can adjust the space angle of the cylindrical rock sample 47.
The pressure-bearing slide rail 2 is internally provided with a second servo motor 22, a second coupler 23, a second screw rod 24, a sectional positioning slide rail 25, a sectional positioning slide block 26, an electromagnetic relay 27, a tensioning buckle 28 and a guide slide rod 29 which are matched with each other to fix and adjust the position of the first confining pressure device 3, and the guide slide rod 29 can improve the stability of the first confining pressure device 3.
All the accessories in the pressure-bearing slide rail 2 in the embodiment are 10 sets, 5 first confining pressure devices 3 can be fixed at the same time, and segmented confining pressure is applied to the cylindrical rock sample with the diameter of 50mm and the height of 100 mm.
The first confining pressure device 3 is connected with the pressure-bearing slide rail 2 through a fixing buckle 30, and an annular oil tank 31, a first confining pressure controller 32, a first confining pressure oil inlet pipe 33, a first confining pressure oil cylinder 34, a first confining pressure oil return pipe 35 and a first confining pressure piston rod 37 are arranged in the first confining pressure device and are mutually connected and matched to form a first confining pressure loading device.
Preferably, the annular oil tank 31 is symmetrically provided with U-shaped guide rods 36 on one side to enhance the bearing capacity of the first confining pressure device 3.
Preferably, the other side of the annular oil tank 31 is symmetrically provided with oil inlet external ports 45 so as to supplement the first confining pressure device 3 with hydraulic oil.
In this embodiment, the loading confining pressure devices in the first confining pressure device 3 have 36 sets and the effective working stroke is 0-20 mm.
The second confining pressure device 4 is connected with the first confining pressure device 3 through a first confining pressure piston rod 37, and a second confining pressure controller 38, a feedback control system 39, a rectangular oil tank 40, an integrated oil cylinder 41, a second confining pressure piston rod 42, a pressing sheet 43 and a second confining pressure oil return pipe 44 are arranged in the second confining pressure device and are connected with each other to form a second confining pressure loading device.
Preferably, each pressing plate 43 is connected with 6 second confining pressure piston rods 38, and the pressing plate 43 is made of alloy steel and has a layer of flexible material on the outer surface thereof so as to be better contacted with the cylindrical rock sample 47 to improve the confining pressure loading effect.
In the embodiment, the confining pressure loading devices in the second confining pressure device 4 are 40 sets, and the effective working stroke is 0-2 mm.
In this embodiment, 36 second confining pressure devices 4 are connected in the first confining pressure device 3, and the first confining pressure device 3 and the second confining pressure devices 4 are mutually matched to complete the segmented confining pressure loading of the cylindrical rock sample 47.
As shown in FIGS. 5 to 7, the utility model mainly comprises the following steps:
step one, adjusting a pressure-bearing slide rail 2 to a vertical position as shown in fig. 5, placing a cylindrical rock sample 47, adjusting the position of a first confining pressure device 3, and applying primary confining pressure;
fixing the confining pressure device on the test device by using the fixing claws 12 on the supporting base 1, and connecting the confining pressure device with external auxiliary equipment such as a controller, a pressure pump and a computer;
step three, if the test is carried out, the pressure-bearing slide rail 2 is adjusted to the horizontal position shown in the figure 6; if the vertical loading is carried out, the pressure-bearing slide rail 2 is adjusted to the vertical position shown in fig. 7, then the first confining pressure device 3 and the second confining pressure device 4 are adjusted, and preset segmented confining pressure is applied to the cylindrical rock sample 47;
step four, performing tests according to the test scheme, monitoring the test data in real time by the feedback control system 39 and feeding the data back to the computer, and automatically analyzing the test data by the analysis system to obtain an analysis result chart;
and step five, finishing the test of the cylindrical rock sample 47, and finishing the test bed to prepare for the next rock sample test.
Claims (8)
1. The utility model provides a no axle load of cylindrical rock sample applys segmentation confined pressure auxiliary device, includes support base, pressure-bearing slide rail, first confined pressure device, second confined pressure device and auxiliary device, its characterized in that: the upper end of the supporting base is connected with a pressure-bearing slide rail, a first confining pressure device is arranged in the pressure-bearing slide rail, and a second confining pressure device is arranged in the first confining pressure device; wherein:
two oil tanks are symmetrically arranged on the supporting base, an oil outlet pipe and an oil return pipe are respectively arranged at the lower part and the upper part of the side surface of each oil tank, and a supporting baffle is arranged at the upper end of each oil tank; first oil cylinders are respectively arranged at the lower sides of the two oil tanks, a first piston rod is connected in each first oil cylinder, each first piston rod is fixed in each circular guide rail, and one end of each first piston rod is connected with a telescopic fixing claw; second oil cylinders are symmetrically arranged on two sides of the oil tank, second piston rods are arranged in the second oil cylinders, horizontal positioning chutes are connected to the top ends of the second piston rods, and first screw rods and first servo motors are arranged inside the horizontal positioning chutes and at one ends of the horizontal positioning chutes respectively and are connected with each other; the first screw rod is connected with a horizontal position adjusting slide block, a hydraulic motor fixing sleeve is arranged on the horizontal position adjusting slide block, and a hydraulic motor is arranged in the hydraulic motor fixing sleeve;
a second servo motor, a second screw rod, a segmented position adjusting slide rail and a guide slide bar are arranged in the pressure-bearing slide rail, the second servo motor is fixed at the bottom end of the pressure-bearing slide rail and connected with the segmented position adjusting slide rail, and the second screw rod is fixed in the segmented position adjusting slide rail and connected with the second servo motor through a second coupler; the second screw rod is connected with a segmented position adjusting sliding block, an electromagnetic relay is arranged in the segmented position adjusting sliding block, the segmented position adjusting sliding block is connected with a tensioning buckle, and the guide sliding rods are symmetrically distributed in the pressure-bearing sliding rail;
an annular oil tank, a first confining pressure controller, a first confining pressure oil inlet pipe, a first confining pressure oil cylinder, a first confining pressure oil return pipe and a first confining pressure piston rod are arranged in the first confining pressure device and are connected with one another, and U-shaped guide rods are symmetrically arranged on one side of the annular oil tank;
and a second confining pressure controller, a feedback control system, a rectangular oil tank, an integrated oil cylinder, a second confining pressure piston rod, a pressing sheet and a second confining pressure oil return pipe are arranged in the second confining pressure device and are connected with each other.
2. The device for assisting the axial-pressure-free application of the segmented confining pressure for the cylindrical rock sample as claimed in claim 1, is characterized in that: and the supporting baffle is provided with a rock sample placing platform.
3. The device for assisting the axial-pressure-free application of the segmented confining pressure for the cylindrical rock sample as claimed in claim 1, is characterized in that: and oil inlet external ports are symmetrically arranged on the annular oil tank.
4. The device for assisting the axial-pressure-free application of the segmented confining pressure for the cylindrical rock sample as claimed in claim 1, is characterized in that: the pressure-bearing slide rail is connected with the supporting base through the first coupler.
5. The device for assisting the axial-pressure-free application of the segmented confining pressure for the cylindrical rock sample as claimed in claim 1, is characterized in that: the first confining pressure device is connected with the pressure-bearing slide rail through a fixed buckle.
6. The device for assisting in applying segmented confining pressure on a cylindrical rock sample without axial pressure as claimed in claim 1, is characterized in that: the second confining pressure device is connected with the first confining pressure device through the first confining pressure piston rod.
7. The device for assisting the axial-pressure-free application of the segmented confining pressure for the cylindrical rock sample as claimed in claim 1, is characterized in that: the number of the first confining pressure oil cylinders in the first confining pressure device is 36, and the effective stroke of the first confining pressure oil cylinders is 0-20 mm.
8. The device for assisting the axial-pressure-free application of the segmented confining pressure for the cylindrical rock sample as claimed in claim 1, is characterized in that: the number of the pressing sheets in the second confining pressure device is 40, each pressing sheet is connected with 6 second confining pressure piston rods, the pressing sheet material is alloy steel, and a layer of flexible material is arranged on the outer surface of the pressing sheet material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222810935.9U CN218823657U (en) | 2022-10-25 | 2022-10-25 | Segmentation confined pressure auxiliary device is applyed to no axial compression of cylindrical rock sample |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222810935.9U CN218823657U (en) | 2022-10-25 | 2022-10-25 | Segmentation confined pressure auxiliary device is applyed to no axial compression of cylindrical rock sample |
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| Publication Number | Publication Date |
|---|---|
| CN218823657U true CN218823657U (en) | 2023-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222810935.9U Active CN218823657U (en) | 2022-10-25 | 2022-10-25 | Segmentation confined pressure auxiliary device is applyed to no axial compression of cylindrical rock sample |
Country Status (1)
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|---|---|
| CN (1) | CN218823657U (en) |
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- 2022-10-25 CN CN202222810935.9U patent/CN218823657U/en active Active
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