CN111537149B - Intelligent center rod telescopic experiment platform - Google Patents
Intelligent center rod telescopic experiment platform Download PDFInfo
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- CN111537149B CN111537149B CN202010512668.XA CN202010512668A CN111537149B CN 111537149 B CN111537149 B CN 111537149B CN 202010512668 A CN202010512668 A CN 202010512668A CN 111537149 B CN111537149 B CN 111537149B
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- 238000002474 experimental method Methods 0.000 title claims abstract description 24
- 238000012360 testing method Methods 0.000 claims abstract description 71
- 238000007789 sealing Methods 0.000 claims abstract description 31
- 230000007246 mechanism Effects 0.000 claims abstract description 29
- 238000007689 inspection Methods 0.000 claims abstract description 12
- 230000009471 action Effects 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 230000005484 gravity Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 210000001503 joint Anatomy 0.000 abstract description 3
- 238000005553 drilling Methods 0.000 description 10
- 238000011065 in-situ storage Methods 0.000 description 10
- 230000007613 environmental effect Effects 0.000 description 4
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 239000011435 rock Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
Abstract
The invention relates to an intelligent center rod telescopic experiment platform which comprises a linear driving mechanism, a box body and a pressure experiment cabin for simulating a fidelity cabin of a fidelity corer, wherein the pressure experiment cabin comprises a cabin outer barrel and a center rod, and the cabin outer barrel is arranged in the box body; the linear driving mechanism is arranged outside the box body, an output part of the linear driving mechanism is connected with the central rod to drive the central rod to axially and linearly move, and a tension testing device is arranged between the output part and the central rod. According to the invention, the tension testing device is arranged between the driving mechanism and the center rod, so that the sealing effect of the pressure-maintaining inspection cabin under different tension conditions can be verified; the quick plug-in structure is simple to operate and reliable in performance, can realize quick butt joint of the center rod and the pull rod, and is beneficial to improving the working efficiency.
Description
Technical Field
The invention relates to the technical field of coring device test systems, in particular to an intelligent center rod telescopic test platform.
Background
The physical mechanics, chemical biology and other characteristics of the deep rock are closely related to the in-situ environmental conditions, the in-situ environmental loss in the coring process can cause the physical and chemical properties of the rock core to be distorted and irreversible, the core and key point of the coring process is how to acquire the in-situ rock core under the deep environmental conditions, and the in-situ loading test and analysis are carried out in the in-situ fidelity state.
At present, the in-situ fidelity coring device utilizes a drilling tool to drill a core, stores the core in a core storage tube, and realizes the simulation of the in-situ environment of the core through a pressure maintaining, heat preserving and moisture preserving device connected with the core storage tube. Before core drilling, the pressure maintaining capability of the core drilling machine needs to be verified, so that a pressure maintaining capability test platform of a pressure maintaining chamber is generated.
The pressure resistance testing platform of the pressure maintaining cabin generally comprises a pressure maintaining checking cabin and a hydraulic system, and the pressure maintaining performance of the pressure maintaining checking cabin is verified by injecting high-pressure liquid into the pressure maintaining checking cabin through the hydraulic system. The pressure-retaining pressure inspection cabin has various structures, and can comprise a central rod, a flap valve, a core barrel and other parts like a pressure-retaining corer for verifying the action reliability of the central rod and the flap valve. The core barrel can be driven to move upwards by the extraction center rod, and the flap valve is automatically closed after the core barrel is lifted to a certain height.
The lower end of the center rod is provided with an outer step, the upper end of the core barrel is provided with an inner step matched with the outer step, and when the center rod is lifted upwards until the outer step is propped against the inner step, the center rod can drive the core barrel to synchronously move upwards. Meanwhile, as the outer step and the inner step are propped against each other, the outer wall of the center rod and the inner wall of the core barrel can form a seal at the propping part. The sealing performance of the abutting part is related to the tensile force applied by the central rod. However, the pressure resistance test platform of the existing pressure protection cabin cannot verify the sealing effect of the pressure protection cabin under different tensile conditions.
Disclosure of Invention
The invention aims to provide an intelligent center rod telescopic experiment platform which can verify the sealing effect of a pressure-maintaining inspection cabin under different tensile conditions.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the intelligent center rod telescopic experiment platform comprises a linear driving mechanism, a box body and a pressure experiment cabin for simulating a fidelity cabin of the fidelity corer, wherein the pressure experiment cabin comprises a cabin outer barrel and a center rod, an output part of the linear driving mechanism is connected with the center rod to drive the center rod to axially and linearly move, and a tension testing device is arranged between the output part and the center rod.
Preferably, the linear driving mechanism is an air cylinder, an oil cylinder or a linear motor.
Further, the output member of the linear drive mechanism is connected to the center rod by a pull rod.
Further, one end of the tension testing device is in threaded connection with an output part of the linear driving mechanism, and the other end of the tension testing device is in threaded connection with the pull rod.
Further, the pull rod is connected with the central rod through a quick plug-in structure.
Further, the quick plug-in structure comprises a plug part, a jack part matched with the plug part and at least two spring buckles, wherein the plug part and the jack part are respectively connected with one of a pull rod and a center rod;
the plug part and the jack part can be axially clamped and fixed through the spring buckle.
Further, the spring buckle is arranged on the plug part; the spring buckle comprises a clamping block and a radially arranged spring;
the outer side wall of the plug part is provided with a groove for the fixture block to avoid, one end of the spring is fixedly connected with the groove wall of the groove, and the other end of the spring is fixedly connected with the fixture block; under the action of the spring, one part of the clamping block is positioned in the groove, and the other part of the clamping block protrudes outwards from the outer side wall of the plug part;
the outer side of the clamping block is provided with an inclined plane so as to realize that when the plug part is inserted into the jack part, the axial force of the jack part acting on the inclined plane can generate a radial component force so as to push the clamping block to move radially to be completely immersed into the groove;
the jack part is provided with a jack, the wall of the jack is coaxially provided with an annular groove, and the cross section shape of the annular groove is matched with the outer part of the clamping block exposed out of the plug part.
Further, the intelligent center rod telescopic experiment platform further comprises a box body, the cabin outer cylinder is installed inside the box body, the linear driving mechanism is installed outside the box body, and a preformed hole for an experiment pipeline to pass through is formed in the box body.
Further, a liquid injection hole is formed in the side wall of the outer barrel of the cabin, and a flap valve for realizing sealing and closing of the lower end of the pressure-maintaining inspection cabin is arranged at the lower end of the outer barrel of the cabin; the flap valve comprises a valve seat, a valve clack and an elastic piece, one end of the valve clack is movably connected with the outer side wall of the upper end of the valve seat, and the top of the valve seat is provided with a valve port sealing surface matched with the valve clack;
the core barrel is arranged in the cabin outer barrel, and when the core barrel is positioned in the valve seat, the valve clack is opened for 90 degrees and is positioned between the core barrel and the cabin outer barrel;
the lower end of the central rod extends into the core barrel, the lower end of the central rod is provided with an outer step, and the core barrel is provided with an inner step matched with the outer step;
when the center rod is lifted upwards through the linear driving mechanism until the outer step abuts against the inner step, the core barrel can be driven to synchronously move upwards by the lifting center rod;
when the core barrel is lifted to a certain height, the valve clack returns to the top surface of the valve seat to be in sealing contact with the sealing surface of the valve port under the action of the elastic element and gravity;
when the central rod is lifted to the stroke end, the outer wall of the upper end of the core barrel is in sealing fit with the inner wall of the cabin outer barrel.
Further, a medium inlet and a medium outlet are arranged on the box body.
Further, the cabin outer cylinder comprises a first test piece, a second test piece and an intermediate connecting piece, wherein the first test piece is positioned above the second test piece, and the intermediate connecting piece is of a cylindrical structure;
the first test piece is connected with the second test piece through the middle connecting piece, and the liquid injection hole is formed in the wall of the middle connecting piece.
Compared with the prior art, the invention has the following beneficial effects:
1, a tension testing device is arranged between a driving mechanism and a center rod, so that the sealing effect of a pressure-maintaining inspection cabin under different tension conditions can be verified;
2, the quick plug-in structure is simple to operate and reliable in performance, can realize quick butt joint of the central rod and the pull rod, and is beneficial to improving the working efficiency.
The upper end and the lower end of the pressure-maintaining test cabin are connected by the middle connecting piece, so that drilling on the pressure-maintaining test cabin can be avoided, damage to the pressure-maintaining test cabin is prevented, and the accuracy of experiments can be improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the structure with the tie rod separated from the center rod;
FIG. 3 is an enlarged view of a portion of FIG. 2 at C;
FIG. 4 is a schematic view of the structure of the tie rod and the center rod when they are plugged together;
FIG. 5 is a partial enlarged view at D in FIG. 4;
FIG. 6 is a schematic view of the structure of the hold down test pod with the center pole not lifted;
FIG. 7 is an enlarged view of a portion of FIG. 6 at A;
FIG. 8 is a schematic view of the structure of the hold down test pod when the center pole is raised to the end of travel;
FIG. 9 is a partial enlarged view at B in FIG. 8;
FIG. 10 is a cross-sectional view of the first embodiment;
FIG. 11 is a schematic view of the warranty inspection chamber with the outer barrel broken into upper and lower sections;
FIG. 12 is a schematic view of the structure of the intermediate connector;
FIG. 13 is a schematic view of the structure of a pressure test chamber in the second embodiment;
fig. 14 is a cross-sectional view of the second embodiment.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings, in order to make the objects, technical solutions and advantages of the present invention more apparent.
Detailed description of the preferred embodiments
As shown in fig. 1, the intelligent center rod telescopic experiment platform disclosed by the invention comprises a linear driving mechanism 8, a box 81 and a pressure experiment cabin 10 for simulating a fidelity cabin of a fidelity corer, wherein the pressure experiment cabin 10 is arranged inside the box 81. The case 81 is an explosion-proof case. The pressure experiment cabin 10 comprises a cabin outer cylinder and a central rod 2, a mounting seat 80 is arranged in a box 81, and the cabin outer cylinder is fixed on the mounting seat 80.
The linear driving mechanism 8 is installed outside the box 81, an output part of the linear driving mechanism is connected with the central rod 2 to drive the central rod 2 to axially and linearly move, and a tensile force testing device 6 is arranged between the output part and the central rod 2. The tension testing device 6 may be a tension meter.
The linear driving mechanism 8 may be a cylinder, an oil cylinder or a linear motor. In the present embodiment, the output member of the linear drive mechanism is connected to the center rod 2 via a tie rod 7. Taking the linear driving mechanism 8 as an oil cylinder for example, the cylinder body of the oil cylinder is fixedly connected with the outside of the box body 81, the output part of the linear driving mechanism is a piston rod 801, one end of the tension testing device 6 is in threaded connection with the piston rod 801, and the other end of the tension testing device 6 is in threaded connection with the pull rod 7.
To facilitate the connection of the pull rod 7 to the central rod 2, the pull rod 7 is connected to the central rod 2 by a quick-connect structure. As shown in fig. 2-5, the quick plugging structure in this embodiment includes a plug portion 24, a jack portion 71 adapted to the plug portion 24, and at least two spring buckles 9, where the plug portion 24 and the jack portion 71 can be axially clamped and fixed by the spring buckles 9.
The plug portion 24 and the socket portion 71 are connected to one of the tie rod 7 and the center rod 2, respectively. By connected is meant that the two separate components are connected together or integrally manufactured. By way of example, the plug portion 24 is connected to the central rod 2 and the socket portion 71 is connected to the tie rod 7, the plug portion 24 may be integrally formed with the central rod 2, or the plug portion 24 and the central rod 2 may be two separate components and then connected as a single unit. Of course, the plug portion 24 may also be connected to the pull rod 7, and the socket portion 71 to the central rod 2.
In the present embodiment, the plug portion 24 is integrally formed with the center rod 2, and the insertion hole portion 71 is integrally formed with the tie rod 7. The spring buckle 9 is arranged on the plug part 24; the spring catch 9 comprises a catch 91 and a radially arranged spring 92. The outer side wall of the plug part 24 is provided with a groove 25 for the clamping block 91 to avoid, one end of a spring 92 is fixedly connected with the wall of the groove 25, and the other end of the spring 92 is fixedly connected with the clamping block 91; under the action of the spring 92, a part of the clamping block 91 is located in the groove 25, and the other part of the clamping block 91 protrudes outwards from the outer side wall of the plug part 24.
The outer side of the clamping block 91 is provided with an inclined plane 93, so that when the plug part 24 is inserted into the jack part 71, the axial force of the jack part 71 acting on the inclined plane 93 can generate a radial component force so as to push the clamping block 91 to move radially to be completely immersed into the groove 25;
the jack portion 71 is provided with a jack 76, the hole wall 74 of the jack 76 is coaxially provided with an annular groove 75, and the cross section shape of the annular groove 75 is matched with the outer part of the clamping block 91 exposed out of the plug portion 24. The cross-sectional shape of the annular groove 75 may be triangular, and the first groove wall 73 of the annular groove 75 is adapted to the inclined surface 93 of the clamping block 91, and the second groove wall 74 of the annular groove 75 is adapted to the inclined surface 93 of the clamping block 91.
For ease of insertion, the outer side wall of the plug portion 24 is an outer tapered surface 26, and the hole wall 74 of the insertion hole 76 of the insertion hole portion 71 is an inner tapered surface matching the outer tapered surface 26. The junction of the plug portion 24 and the central rod 2 forms a limit step 27 for abutment against the plug portion end face 72.
As shown in fig. 3 and 5, when the pull rod 7 needs to be connected with the central rod 2, the pull rod 7 is abutted with the central rod 2, the jack portion 71 acts on the inclined surface 93 to generate a radial component force to push the clamping block 91 to gradually move radially until the clamping block 91 is completely immersed into the groove 25, and when the annular groove 75 moves to be opposite to the clamping block 91, the clamping block 91 loses the action of the jack portion 71 and moves radially until a part of the external force is clamped into the annular groove 75 under the action of the spring 92; at this time, the plug end face 72 also just abuts against the limit step 27, and is inserted in place.
Since the clamping block 91 is partially positioned in the groove 25 of the plug part 24 and partially positioned in the annular groove 75 of the jack part 71, the pull rod 7 and the central rod 2 can be prevented from moving relatively in the axial direction, and the pull rod 7 and the central rod 2 can be quickly clamped and fixed in the axial direction. The number of the spring clips 9 is set as required, and 2, 3 or more may be set. To ensure a uniform force, the spring catches 9 are arranged at equal intervals in the circumferential direction.
The invention has simple operation, can realize the rapid butt joint of the central rod and the pull rod in the outer cylinder only by axially moving the pull rod when in use, and can improve the working efficiency.
As shown in fig. 6 to 9, the pressure test chamber 10 in this embodiment directly adopts a pressure maintaining test chamber, and the pressure maintaining test chamber includes an outer cylinder 1, a center rod 2, a core cylinder 3, and a flap valve 5 for sealing and closing the lower end of the test chamber.
The pressure maintaining experimental cabin comprises an outer barrel 1, namely a cabin body outer barrel of the pressure experimental cabin 10. The outer barrel 1 is a drilling machine outer barrel assembled by a plurality of threaded sleeves and used for simulating an in-situ fidelity coring device. The flap valve 5 comprises a valve seat 51, a valve clack 52 and an elastic piece 53, one end of the valve clack 52 is movably connected with the outer side wall of the upper end of the valve seat 51, and the top of the valve seat 51 is provided with a valve port sealing surface matched with the valve clack 52. The elastic member 53 is a spring plate or a torsion spring.
The lower end of the center rod 2 extends into the core barrel 3, the lower end of the center rod 2 is provided with an outer step 23, the upper end of the core barrel 3 is provided with an inner step 32 matched with the outer step 23, and when the center rod 2 is lifted upwards until the outer step 23 abuts against the inner step 32, the center rod 2 can drive the core barrel 3 to synchronously move upwards. Meanwhile, the outer step 23 is abutted against the inner step 32, so that the outer wall of the center rod 2 and the inner wall of the core barrel 3 can form a seal at the abutted part. The sealing properties of the abutment are related to the axial pressure between the central rod 2 and the core barrel 3. And the axial pressure between the center rod 2 and the core barrel 3 is determined by the tensile force exerted by the center rod 2. The tension of the central rod 2 can be applied by the tension testing device 6, so that the sealing performance of the pressure test chamber 10 under different tension conditions can be verified.
As shown in fig. 6 and 7, in the initial state, the core barrel 3 is located at the lower end of the outer barrel 1 and is located in the valve seat 51. When the core barrel 3 is positioned in the valve seat 51, the valve clack 52 is opened by 90 degrees and is positioned between the core barrel 3 and the outer barrel 1; when the core barrel 3 is lifted to a certain height through the central rod 2, the valve clack 52 returns to the top surface of the valve seat 51 to be in sealing contact with the sealing surface of the valve port under the action of the elastic piece 53 and gravity, so that the valve is closed.
As shown in fig. 8 and 9, when the central rod 2 continues to be lifted upwards to the stroke end, the outer wall of the upper end of the core barrel 3 is in sealing fit with the inner wall of the outer barrel 1. Two sealing rings 22 are arranged on the outer wall of the upper end of the core barrel 3 to realize the sealing with the wall of the outer barrel 1. At this time, the outer wall of the central rod 2 and the inner wall of the core barrel 3 form a seal at the abutting part of the outer step 23 and the inner step 32, so that the upper end of the outer barrel 1 is sealed. The lower end of the outer barrel 1 is closed by a flap valve 5, so that a sealed space for storing the core is formed in the outer barrel 1.
The inner wall of the outer barrel 1 is provided with a first limiting step 16 for axially limiting the core barrel 3, and when the upper end face 21 of the core barrel abuts against the first limiting step 16, the center rod 2 is lifted to the stroke end.
In order to increase the sealing specific pressure of the flap valve 5, the pressure-maintaining inspection cabin further comprises a trigger mechanism 4, the trigger mechanism 4 comprises a trigger inner barrel 41, a trigger block 42 and a trigger spring 43, a through hole is formed in the side wall of the trigger inner barrel 41, the trigger block 42 is placed in the through hole, and a protruding portion 31 matched with the trigger block 42 is formed in the outer side wall of the bottom of the core barrel 3; the inner wall of the outer cylinder 1 is provided with an avoidance port 15 which is matched with the trigger block 42, the trigger block 42 is positioned above the valve clack 52, and the avoidance port 15 is positioned above the trigger block 42. The bottom of the avoidance port 15 is provided with a guiding inclined plane which is convenient for the trigger block 42 to slide into the avoidance port 15 from bottom to top, and is also convenient for the trigger block 42 to slide out of the avoidance port 15 from top to bottom.
The trigger spring 43 is sleeved outside the trigger inner cylinder 41, a shoulder 44 is arranged on the outer wall of the trigger inner cylinder 41, the trigger spring 43 is compressed between the shoulder 44 and the step surface of the inner wall of the outer cylinder 1, and the trigger spring 43 is positioned above the trigger block 42;
when the core barrel 3 is positioned in the valve seat 51, the trigger inner barrel 41 is positioned between the core barrel 3 and the outer barrel 1, the lower end of the trigger inner barrel 41 is matched with the spigot of the valve seat 51, and the trigger block 42 protrudes outwards from the inner side wall of the trigger inner barrel 41;
when the core barrel 3 is lifted up to the first height, the protruding part 31 of the core barrel 3 abuts against the trigger block 42, so that the trigger inner barrel 41 can be driven to synchronously move upwards;
when the core barrel 3 is continuously lifted up to the second height, the trigger block 42 is pushed into the avoiding opening 15 by the protruding part 31, so that the trigger block 42 avoids the protruding part 31;
when the core barrel 3 is lifted up until the bottom of the core barrel 3 passes over the avoiding opening 15, the trigger block 42 loses the acting force of the core barrel 3, and the trigger inner barrel 41 drives the trigger block 42 to fall back and press on the closed valve clack 52 under the action of gravity and the trigger spring 43.
In order to perform the pressure test, a high-pressure liquid needs to be injected into the pressure maintaining test chamber. As shown in fig. 10, in this case, a drill is required to drill a hole 101 in the side wall of the outer cylinder 1, and the hole 101 is used as a liquid injection hole to connect with a hydraulic line. To facilitate connection to the fluid line, the hole 101 is a threaded hole. Of course, the box 81 is provided with a first preformed hole 82 through which the experiment pipeline passes.
In another embodiment, in order to simulate the in-situ environmental temperature, the tank 81 is provided with a medium inlet 83 and a medium outlet 84, and the pressure test chamber 10 can be heated or cooled by injecting a medium with a certain temperature into the tank 1 through the tank 81 so as to simulate the in-situ temperature environment.
Detailed description of the preferred embodiments
In the first embodiment, the pressure-maintaining inspection cabin is connected with the hydraulic pipeline by drilling holes in the cylinder wall, and the pressure-maintaining inspection cabin can be damaged by drilling holes of the drilling machine, so that the experimental result is unrealistic.
As shown in fig. 12, 13 and 14, in this embodiment, the outer barrel of the cabin body includes a first test piece 11, a second test piece 12 and an intermediate connecting piece 13, where the first test piece 11 is the upper end of the outer barrel 1 of the pressure-maintaining inspection cabin, the second test piece 12 is the lower end of the outer barrel 1 of the pressure-maintaining inspection cabin, and the intermediate connecting piece 13 is a cylindrical structure; the first test piece 11 is connected with the second test piece 12 through the middle connecting piece 13, and the liquid injection hole 14 is formed in the wall of the middle connecting piece 13 and is used for being externally connected with a hydraulic source, so that drilling on the test piece can be avoided, damage to the test piece is prevented, the pressure environment of the test piece can be reduced, and the test result is more real.
As shown in fig. 11, in the present embodiment, the pressure maintaining experiment chamber outer tube 1 is split into a first test piece 11 and a second test piece 12 from the screw connection of the outer tube 1. The first limiting step 16 is located on the first test piece 11, and the flap valve 5 and the triggering mechanism 4 are located on the second test piece 12. When the core rod 2 is lifted to the stroke end, the outer wall of the upper end of the core barrel 3 is in sealing fit with the inner wall of the first test piece 11.
The intermediate connecting member 13 has an internal thread at one end and an external thread at the other end to achieve threaded connection with the first test piece 11 and the second test piece 12. And a sealing ring is arranged between the middle connecting piece 13 and the first test piece 11 and the second test piece 12, and the sealing performance can be improved by the threaded sealing and the sealing of the sealing ring.
According to the embodiment, the upper end and the lower end of the pressure-maintaining test cabin are connected by the middle connecting piece, so that drilling on the pressure-maintaining test cabin can be avoided, damage to the pressure-maintaining test cabin is prevented, and the accuracy of an experiment can be improved.
There are, of course, many other embodiments of the invention that can be made by those skilled in the art in light of the above teachings without departing from the spirit or essential scope thereof, but that such modifications and variations are to be considered within the scope of the appended claims.
Claims (6)
1. The utility model provides an intelligent center pole flexible experiment platform, is including the pressure experiment cabin that is used for simulating the fidelity cabin of fidelity corer, and pressure experiment cabin includes cabin body urceolus and center pole, its characterized in that: the device also comprises a linear driving mechanism and a box body, wherein the outer barrel of the cabin body is arranged in the box body;
the linear driving mechanism is arranged outside the box body, an output part of the linear driving mechanism is connected with the central rod to drive the central rod to axially and linearly move, and a tension testing device is arranged between the output part and the central rod;
the output part of the linear driving mechanism is connected with the central rod through a pull rod;
the pull rod is connected with the central rod through a quick plug-in structure;
the quick plug-in structure comprises a plug part, a jack part matched with the plug part and at least two spring buckles, wherein the plug part and the jack part are respectively connected with one of a pull rod and a center rod;
the plug part and the jack part can be axially clamped and fixed through the spring buckle;
the spring buckle is arranged on the plug part; the spring buckle comprises a clamping block and a radially arranged spring;
the outer side wall of the plug part is provided with a groove for the fixture block to avoid, one end of the spring is fixedly connected with the groove wall of the groove, and the other end of the spring is fixedly connected with the fixture block; under the action of the spring, one part of the clamping block is positioned in the groove, and the other part of the clamping block protrudes outwards from the outer side wall of the plug part;
the outer side of the clamping block is provided with an inclined plane so as to realize that when the plug part is inserted into the jack part, the axial force of the jack part acting on the inclined plane can generate a radial component force so as to push the clamping block to move radially to be completely immersed into the groove;
the jack part is provided with a jack, the wall of the jack is coaxially provided with an annular groove, and the cross section shape of the annular groove is matched with the outer part of the clamping block exposed out of the plug part; the first groove wall and the second groove wall of the annular groove are respectively matched with the inclined planes on the clamping blocks;
the outer side wall of the plug part is an outer conical surface, the hole wall of the jack on the jack part is an inner conical surface matched with the outer conical surface, and a limiting step for supporting the end face of the plug part is formed at the joint of the plug part and the central rod.
2. The intelligent center pole telescoping test platform of claim 1, wherein: the linear driving mechanism is an air cylinder, an oil cylinder or a linear motor.
3. The intelligent center pole telescoping test platform of claim 1, wherein: one end of the tension testing device is in threaded connection with an output part of the linear driving mechanism, and the other end of the tension testing device is in threaded connection with the pull rod.
4. The intelligent center pole telescoping test platform of claim 1, wherein: the side wall of the outer barrel of the cabin body is provided with a liquid injection hole, and the box body is provided with a first preformed hole for the experimental pipeline to pass through; the lower end of the cabin outer cylinder is provided with a flap valve for realizing the sealing and closing of the lower end of the pressure-maintaining inspection cabin; the flap valve comprises a valve seat, a valve clack and an elastic piece, one end of the valve clack is movably connected with the outer side wall of the upper end of the valve seat, and the top of the valve seat is provided with a valve port sealing surface matched with the valve clack;
the core barrel is arranged in the cabin outer barrel, and when the core barrel is positioned in the valve seat, the valve clack is opened for 90 degrees and is positioned between the core barrel and the cabin outer barrel;
the lower end of the central rod extends into the core barrel, the lower end of the central rod is provided with an outer step, and the core barrel is provided with an inner step matched with the outer step;
when the center rod is lifted upwards through the linear driving mechanism until the outer step abuts against the inner step, the core barrel can be driven to synchronously move upwards by the lifting center rod;
when the core barrel is lifted to a certain height, the valve clack returns to the top surface of the valve seat to be in sealing contact with the sealing surface of the valve port under the action of the elastic element and gravity;
when the central rod is lifted to the stroke end, the outer wall of the upper end of the core barrel is in sealing fit with the inner wall of the cabin outer barrel.
5. The intelligent center pole extension experiment platform of claim 1 or 4, wherein: the box body is provided with a medium inlet and a medium outlet.
6. The intelligent center pole extension experiment platform of claim 4, wherein: the cabin outer cylinder comprises a first test piece, a second test piece and an intermediate connecting piece, the first test piece is positioned above the second test piece, and the intermediate connecting piece is of a cylindrical structure;
the first test piece is connected with the second test piece through the middle connecting piece, and the liquid injection hole is formed in the wall of the middle connecting piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010512668.XA CN111537149B (en) | 2020-06-08 | 2020-06-08 | Intelligent center rod telescopic experiment platform |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010512668.XA CN111537149B (en) | 2020-06-08 | 2020-06-08 | Intelligent center rod telescopic experiment platform |
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| Publication Number | Publication Date |
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| CN111537149A CN111537149A (en) | 2020-08-14 |
| CN111537149B true CN111537149B (en) | 2024-03-22 |
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| CN202010512668.XA Active CN111537149B (en) | 2020-06-08 | 2020-06-08 | Intelligent center rod telescopic experiment platform |
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Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1289969A (en) * | 1969-01-27 | 1972-09-20 | ||
| US4548069A (en) * | 1983-04-26 | 1985-10-22 | Damco Testers, Inc. | Pipe testing tool |
| CN1707257A (en) * | 2005-04-14 | 2005-12-14 | 张荣华 | Detection standardization experimental apparatus platform for high-temperature high-pressure chemical sensor |
| EP1770320A1 (en) * | 2005-09-29 | 2007-04-04 | Johannes Schäfer vormals Stettiner Schraubenwerke GmbH & Co. KG | Releasable plug-in coupling for pipes |
| CN201425537Y (en) * | 2009-05-31 | 2010-03-17 | 天津豪钢机械工程有限公司 | Leak tightness test device for hatch covers |
| CN201636477U (en) * | 2010-04-21 | 2010-11-17 | 浙江锦帆船舶配件制造有限公司 | Quick connector |
| CN202403904U (en) * | 2011-12-26 | 2012-08-29 | 西安庆安电气控制有限责任公司 | Device for testing sealing joint |
| CN108916393A (en) * | 2018-08-13 | 2018-11-30 | 四川大学 | The reverse turning bed structure of automatic trigger |
| CN109596288A (en) * | 2019-02-15 | 2019-04-09 | 中车青岛四方机车车辆股份有限公司 | A kind of sealing property detection device and detection method |
| CN208921355U (en) * | 2018-11-19 | 2019-05-31 | 西安市鹰航机械制造有限责任公司 | A kind of wing body Butt sealing experimental cabin |
| CN209707244U (en) * | 2019-04-10 | 2019-11-29 | 遵义师范学院 | A kind of ground tension and compression test device |
| CN110749434A (en) * | 2019-11-26 | 2020-02-04 | 四川大学 | System and method for testing pressure maintaining characteristic of pressure maintaining cabin of coring device |
| WO2020034355A1 (en) * | 2018-08-13 | 2020-02-20 | 四川大学 | Pressure-maintaining-cylinder lower-end sealing structure |
| WO2020034351A1 (en) * | 2018-08-13 | 2020-02-20 | 四川大学 | Rock core storage cylinder |
| CN211954567U (en) * | 2020-06-08 | 2020-11-17 | 四川大学 | Intelligent central rod telescopic experiment platform |
-
2020
- 2020-06-08 CN CN202010512668.XA patent/CN111537149B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1289969A (en) * | 1969-01-27 | 1972-09-20 | ||
| US4548069A (en) * | 1983-04-26 | 1985-10-22 | Damco Testers, Inc. | Pipe testing tool |
| CN1707257A (en) * | 2005-04-14 | 2005-12-14 | 张荣华 | Detection standardization experimental apparatus platform for high-temperature high-pressure chemical sensor |
| EP1770320A1 (en) * | 2005-09-29 | 2007-04-04 | Johannes Schäfer vormals Stettiner Schraubenwerke GmbH & Co. KG | Releasable plug-in coupling for pipes |
| CN201425537Y (en) * | 2009-05-31 | 2010-03-17 | 天津豪钢机械工程有限公司 | Leak tightness test device for hatch covers |
| CN201636477U (en) * | 2010-04-21 | 2010-11-17 | 浙江锦帆船舶配件制造有限公司 | Quick connector |
| CN202403904U (en) * | 2011-12-26 | 2012-08-29 | 西安庆安电气控制有限责任公司 | Device for testing sealing joint |
| CN108916393A (en) * | 2018-08-13 | 2018-11-30 | 四川大学 | The reverse turning bed structure of automatic trigger |
| WO2020034355A1 (en) * | 2018-08-13 | 2020-02-20 | 四川大学 | Pressure-maintaining-cylinder lower-end sealing structure |
| WO2020034351A1 (en) * | 2018-08-13 | 2020-02-20 | 四川大学 | Rock core storage cylinder |
| CN208921355U (en) * | 2018-11-19 | 2019-05-31 | 西安市鹰航机械制造有限责任公司 | A kind of wing body Butt sealing experimental cabin |
| CN109596288A (en) * | 2019-02-15 | 2019-04-09 | 中车青岛四方机车车辆股份有限公司 | A kind of sealing property detection device and detection method |
| CN209707244U (en) * | 2019-04-10 | 2019-11-29 | 遵义师范学院 | A kind of ground tension and compression test device |
| CN110749434A (en) * | 2019-11-26 | 2020-02-04 | 四川大学 | System and method for testing pressure maintaining characteristic of pressure maintaining cabin of coring device |
| CN211954567U (en) * | 2020-06-08 | 2020-11-17 | 四川大学 | Intelligent central rod telescopic experiment platform |
Non-Patent Citations (1)
| Title |
|---|
| 深海硬岩岩芯保真取样技术的研究;万步炎 等;矿业研究与开发;20091231;第29卷(第06期);第47-50页 * |
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