Intelligent holder for rock core measurement and measurement system

Abstract

The invention discloses an intelligent holder for rock core measurement and a measurement system, the intelligent holder comprises a rock core holder main body, the two ends of the rock core holder main body are fixedly connected with transfer pipes, and the outer sides of the ends, away from the rock core holder main body, of the transfer pipes are fixedly connected with limiting rings; a hollow pipe is fixedly connected to the middle of one side of the plugging cover, an assembling disc is fixedly connected to the end, away from the plugging cover, of the hollow pipe, and an impurity removing assembly is arranged between the hollow pipe and the assembling disc and used for cleaning the inner wall of the limiting ring; and the two extension plates are fixedly connected to the two ends of the plugging cover correspondingly. Through structural cooperation of the hollow pipe, the assembly disc and the impurity removal assembly, multiple cleaning of chippings on the inner wall of the conveying pipe can be achieved while the plugging cover is separated, the cleaning strength of the limiting ring is greatly reduced, and the core conveying quality is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of core measurement, in particular to an intelligent clamp and a measurement system for core measurement. Background Art

[0002] According to the needs of geological exploration or engineering, cylindrical rock samples taken out from the hole using annular core drill bits and other coring tools are called cores. Cores are important physical geological data for studying and understanding underground geology and mineral conditions. Through the observation and analysis of cores, we can understand the lithology, physical properties, oil, gas, and water characteristics of underground rock formations, and provide support for oilfield exploration and development, scientific research and production, and engineering implementation;

[0003] At present, when measuring cores, it is necessary to use a core clamp to keep the rock sample fixed and ensure that the measurement operation can proceed smoothly. However, during the contact between the core and the clamp, debris is easily accumulated in the transmission tube, and due to the lack of effective cleaning measures, the debris can easily affect the quality of subsequent rock samples.

[0004] To this end, the present invention provides an intelligent clamp and a measuring system for core measurement to solve the above problems. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an intelligent clamp and a measuring system for core measurement, which solve the above problems.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an intelligent clamp for core measurement, comprising a core clamp body:

[0007] A core holder body, both ends of the core holder body are fixedly connected with a transfer tube, and the outer side of the transfer tube away from one end of the core holder body is fixedly connected with a limit ring;

[0008] A plugging cover, wherein a hollow tube is fixedly connected to the middle of one side of the plugging cover, an end of the hollow tube away from the plugging cover is fixedly connected to an assembly disk, and a de-impurity component is arranged between the hollow tube and the assembly disk, and the de-impurity component is used to clean the inner wall of the limit ring;

[0009] Two extension plates are respectively fixedly connected to the two ends of the blocking cover, one side of the blocking cover is fixedly connected with a force-bearing handle, a positioning component is assembled between the force-bearing handle and the extension plate, and the positioning component is used to position the blocking cover.

[0010] Preferably, the impurity removal component comprises:

[0011] An extension frame, wherein a plurality of extension frames are fixedly connected to the outer side of the extension frame, a displacement slide rod is slidably connected to the middle part of each extension frame, a cleaning plate is fixedly connected to one end of the displacement slide rod, and a compensation plate is fixedly connected to one side of the cleaning plate;

[0012] A linkage ring, the linkage ring is rotatably connected to one side of the assembly disk, one side of the linkage ring is fixedly connected to a mounting shaft rod corresponding to the displacement slide rod, the outer side of the mounting shaft rod is rotatably connected to a linkage plate, and one end of the linkage plate away from the mounting shaft rod is rotatably connected to the bottom end of the corresponding displacement slide rod, a linkage frame is fixedly connected to the middle of one side of the assembly disk, and a linkage through groove is opened in the middle of the linkage frame;

[0013] A transmission shaft, wherein one end of the transmission shaft is rotatably connected to the inside of the hollow tube, one end of the transmission shaft is fixedly connected to an eccentric plate, and the end of the eccentric plate away from the transmission shaft is also movably connected to the inside of the linkage through groove, one end of the hollow tube close to the transmission shaft is laterally rotatably connected to a central shaft, one end of the central shaft located inside the hollow tube is fixedly connected to a transmission worm, and one end of the transmission shaft close to the central shaft is fixedly connected to a matching worm wheel, and the matching worm wheel is meshingly connected to the transmission worm;

[0014] A driving assembly is mounted on the outside of the hollow tube and is used to drive the central shaft to rotate.

[0015] Preferably, the driving assembly comprises:

[0016] A linear guide rod, the linear guide rod is fixedly connected to the outer side of the hollow tube near one end of the transmission shaft, the outer side of the linear guide rod is slidably connected to a displacement seat, the bottom end of the displacement seat is rotatably connected to a rotating shaft, and the bottom end of the rotating shaft is fixedly connected to a traveling wheel;

[0017] A transmission rod, wherein the transmission rod is rotatably connected to the bottom end of the displacement seat in a transverse manner, and one end of the transmission rod is also slidably connected to the middle of the central shaft, and the other end of the transmission rod and the top end of the rotating shaft are fixedly connected with a reversing bevel gear, and the two reversing bevel gears are meshed and connected;

[0018] A stabilizing plate, the stabilizing plate is slidably connected to one side of the hollow tube, the bottom of one end of the stabilizing plate is fixedly connected to a contact frame, the other end inside the hollow tube is rotatably connected to a transmission screw, the outer side of the transmission screw is threadedly connected to a displacement plate, and the end of the stabilizing plate close to the displacement plate is also fixedly connected to the displacement plate, one end of the displacement plate is rotatably connected to a light-conducting rod, and the end of the light-conducting rod away from the displacement plate is also rotatably connected to the displacement seat.

[0019] Preferably, the positioning component includes:

[0020] Two bearing shafts, the two bearing shafts are rotatably connected to the middle parts of the two extension plates respectively, the outer sides of the two bearing shafts are fixedly connected to positioning frames, the side of the bearing shaft away from the positioning frame is obliquely fixedly connected to a transmission plate, and the middle part of the transmission plate is provided with a transmission through groove;

[0021] A force-bearing worm gear is slidably connected to the middle part of the force-bearing handle, one end of the force-bearing worm gear located on the inner side of the force-bearing handle is fixedly connected to a pushing rack, and the two ends of the pushing rack are respectively movably connected to the inside of two transmission through grooves, and a plurality of coil springs are fixedly connected between one side of the pushing rack and the force-bearing handle.

[0022] Preferably, a plurality of limiting holes are opened on the outer side of the limiting ring, a plurality of limiting columns are fixedly connected to the edge of the sealing cover close to the hollow tube, and there is a clearance fit between the limiting columns and the limiting holes.

[0023] Preferably, the cleaning plate and the compensation plate are both arc-shaped structures, and the cleaning plate and the compensation plate are staggered.

[0024] Preferably, the central shaft is a hollow structure, a guide bar is fixedly connected to the inner wall of the central shaft, a guide groove is provided on the outer side of the conductive rod, and the guide bar is also slidably connected to the inside of the guide groove.

[0025] Preferably, one end of the contact frame close to the central shaft is fixedly connected with a stabilizing arc plate, and the inner side of the stabilizing arc plate is provided with anti-slip grooves.

[0026] Preferably, both ends of the top of the pushing frame are fixedly connected with linkage pins, and the pushing frame is movably connected to the inside of the transmission through groove through the linkage pins.

[0027] A measuring system of an intelligent clamp for core measurement, comprising:

[0028] A fluid injection mechanism, used to inject the test fluid into the core sample at a flow rate and pressure;

[0029] A fluid discharge mechanism, used for discharging the test fluid;

[0030] An annular pressure mechanism, used to apply annular pressure to the core;

[0031] The pressure measurement component is used to monitor the pressure changes inside the core in real time.

[0032] Beneficial Effects

[0033] The present invention provides an intelligent clamp and a measuring system for core measurement. Compared with the prior art, the intelligent clamp and a measuring system have the following advantages:

[0034] The intelligent clamp and measuring system for core measurement, through the structural coordination of the hollow tube, the assembly plate and the impurity removal component, can achieve multiple cleaning of the debris on the inner wall of the transfer tube while separating the sealing cover, greatly reducing the cleaning intensity of the limit ring and ensuring the quality of core transmission.

[0035] The intelligent clamp and measuring system for core measurement can cooperate with the limit ring to form a fast positioning of the sealing cover through the structure of the positioning component, and facilitate subsequent disassembly, which greatly improves the overall convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0037] Figure 2 It is a schematic diagram of the internal structure of the transfer tube of the present invention;

[0038] Figure 3 It is a schematic diagram of the assembly structure of the assembly disk of the present invention;

[0039] Figure 4 It is a schematic diagram of the transmission structure of the transmission worm of the present invention;

[0040] Figure 5 It is a schematic diagram of the linkage structure of the conduction rod of the present invention;

[0041] Figure 6 It is a schematic diagram of the assembly structure of the traveling wheel of the present invention;

[0042] Figure 7 It is a schematic diagram of the transmission structure of the linkage plate of the present invention;

[0043] Figure 8 It is a schematic diagram of the connection structure of the positioning frame and the limiting ring of the present invention.

[0044] In the figure, 1, the core holder body; 2, the transfer tube; 3, the limit ring; 4, the plugging cover; 5, the hollow tube; 6, the assembly plate; 7, the impurity removal component; 8, the extension plate; 9, the force grip; 10, the positioning component; 11, the extension frame; 12, the displacement slide rod; 13, the cleaning plate; 14, the compensation plate; 15, the linkage ring; 16, the carrying shaft rod; 17, the linkage plate; 18, the linkage frame; 19, the linkage slot; 20, the transmission shaft rod; 21, the eccentric plate; 22, Central shaft; 23, transmission worm; 24, matching worm wheel; 25, linear guide rod; 26, displacement seat; 27, rotating shaft; 28, traveling wheel; 29, transmission rod; 30, reversing bevel gear; 31, stabilizing plate; 32, contact frame; 33, transmission screw; 34, displacement plate; 35, transmission light rod; 36, load-bearing shaft; 37, positioning frame; 38, transmission plate; 39, transmission slot; 40, force-bearing worm; 41, pushing frame; 42, spiral spring. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] Embodiment 1:

[0047] See also Figure 1-8 , an intelligent clamp for core measurement, comprising a core clamp body 1:

[0048] A core holder body 1, both ends of the core holder body 1 are fixedly connected with a transfer tube 2, and the outer side of the transfer tube 2 away from one end of the core holder body 1 is fixedly connected with a limit ring 3;

[0049] A plugging cover 4, a hollow tube 5 is fixedly connected to the middle of one side of the plugging cover 4, an end of the hollow tube 5 away from the plugging cover 4 is fixedly connected to an assembly disk 6, and a de-impurity component 7 is provided between the hollow tube 5 and the assembly disk 6, and the de-impurity component 7 is used to clean the inner wall of the limit ring 3;

[0050] In this embodiment, a plurality of limiting holes are provided on the outer side of the limiting ring 3, and a plurality of limiting columns are fixedly connected to the edge of the sealing cover 4 close to the hollow tube 5, and there is a clearance fit between the limiting columns and the limiting holes. Through the structural fit of the limiting holes and the limiting columns, when the sealing cover 4 is assembled, the limiting columns are first aligned with the limiting holes. After the limiting columns are moved into the limiting holes, the sealing cover 4 can be initially supported, and the assembly position of the sealing cover 4 can be effectively guided to avoid subsequent repeated debugging.

[0051] Two extension plates 8, the two extension plates 8 are fixedly connected to the two ends of the blocking cover 4 respectively, a force-bearing handle 9 is fixedly connected to one side of the blocking cover 4, a positioning assembly 10 is assembled between the force-bearing handle 9 and the extension plate 8, and the positioning assembly 10 is used to position the blocking cover 4;

[0052] In this embodiment, the core holder body 1 includes a barrel, an end cover, a plug, a rubber sleeve and other components. Its working principle is mainly based on its design and function to clamp and protect the rock sample, and seal the cylinder or end surface to perform seepage characteristics or displacement tests. The specific principle is as follows:

[0053] Clamping and protection: The rock sample is clamped by a specific mechanical structure to ensure that the rock sample remains fixed during the experiment;

[0054] Sealing: forming an effective seal on the cylindrical surface or end surface of the rock sample to prevent the fluid from leaking from the gap between the rock sample and the holder during the experiment;

[0055] Fluid inlet and outlet: Fluid inlet and outlet are designed to inject fluid into or discharge fluid from rock samples during the experiment, simulate the fluid flow in the formation, and then study the seepage characteristics of rock samples or conduct intelligent displacement experiments.

[0056] In this embodiment, the impurity removal component 7 includes:

[0057] An extension frame 11, a plurality of extension frames 11 are fixedly connected to the outer side of the extension frame 11, a displacement slide bar 12 is slidably connected to the middle of each extension frame 11, a cleaning plate 13 is fixedly connected to one end of the displacement slide bar 12, and a compensation plate 14 is fixedly connected to one side of the cleaning plate 13;

[0058] A linkage ring 15 is rotatably connected to one side of the assembly disk 6. A mounting shaft 16 corresponding to the displacement slide rod 12 is fixedly connected to one side of the linkage ring 15. A linkage plate 17 is rotatably connected to the outer side of the mounting shaft 16. One end of the linkage plate 17 away from the mounting shaft 16 is rotatably connected to the bottom end of the corresponding displacement slide rod 12. A linkage frame 18 is fixedly connected to the middle of one side of the assembly disk 6. A linkage through groove 19 is provided in the middle of the linkage frame 18.

[0059] A transmission shaft 20, the transmission shaft 20 is rotatably connected to one end of the hollow tube 5, one end of the transmission shaft 20 is fixedly connected to an eccentric plate 21, and the end of the eccentric plate 21 away from the transmission shaft 20 is also movably connected to the inside of the linkage through groove 19, the end of the hollow tube 5 close to the transmission shaft 20 is rotatably connected to a central shaft 22, the end of the central shaft 22 located inside the hollow tube 5 is fixedly connected to a transmission worm 23, the end of the transmission shaft 20 close to the central shaft 22 is fixedly connected to a matching worm wheel 24, and the matching worm wheel 24 is meshingly connected with the transmission worm 23;

[0060] A driving assembly, which is mounted on the outside of the hollow tube 5 and is used to drive the central shaft 22 to rotate;

[0061] In this embodiment, the cleaning plate 13 and the compensation plate 14 are both arc-shaped structures, and the cleaning plate 13 and the compensation plate 14 are staggered. Through the structural characteristics of the cleaning plate 13 and the compensation plate 14, the cleaning plate 13 and the compensation plate 14 can conform to the shape of the inner wall of the transfer tube 2, and through the staggered setting of the cleaning plate 13 and the compensation plate 14, the gap between the cleaning plates 13 can be compensated by the compensation plate 14;

[0062] In this embodiment, the driving assembly includes:

[0063] A linear guide rod 25, which is fixedly connected to the outer side of the hollow tube 5 near one end of the transmission shaft 20, a displacement seat 26 is slidably connected to the outer side of the linear guide rod 25, a rotating shaft 27 is rotatably connected to the bottom end of the displacement seat 26, and a traveling wheel 28 is fixedly connected to the bottom end of the rotating shaft 27;

[0064] The transmission rod 29 is rotatably connected to the bottom end of the displacement seat 26, and one end of the transmission rod 29 is also slidably connected to the middle of the central shaft 22. The other end of the transmission rod 29 and the top end of the rotating shaft 27 are fixedly connected with a reversing bevel gear 30, and the two reversing bevel gears 30 are meshed and connected;

[0065] The stabilizing plate 31 is slidably connected to one side of the hollow tube 5. The bottom of one end of the stabilizing plate 31 is fixedly connected to a contact frame 32. The other end inside the hollow tube 5 is rotatably connected to a transmission screw 33. The outer side of the transmission screw 33 is threadedly connected to a displacement sheet 34. The end of the stabilizing plate 31 close to the displacement sheet 34 is also fixedly connected to the displacement sheet 34. The end of the displacement sheet 34 is rotatably connected to a transmission light rod 35. The end of the transmission light rod 35 away from the displacement sheet 34 is also rotatably connected to the displacement seat 26.

[0066] In this embodiment, the central shaft 22 is a hollow structure, the inner wall of the central shaft 22 is fixedly connected with a guide bar, the outer side of the transmission rod 29 is provided with a guide groove, and the guide bar is also slidably connected inside the guide groove. Since the guide bar is slidably connected inside the guide groove, when the transmission rod 29 is displaced, the displacement of the transmission rod 29 can be guided by the guide bar, and when the transmission rod 29 rotates, the power of the transmission rod 29 can be transmitted to the central shaft 22 by virtue of the connection between the guide bar and the guide groove.

[0067] In this embodiment, a stabilizing arc plate is fixedly connected to one end of the contact frame 32 close to the central shaft 22, and an anti-slip pattern is provided on the inner side of the stabilizing arc plate. By setting the stabilizing arc plate, the contact range between the contact frame 32 and the central shaft 22 can be increased, thereby increasing the friction between the central shaft 22 and the contact frame 32;

[0068] In this embodiment, the positioning assembly 10 includes:

[0069] Two bearing shafts 36, the two bearing shafts 36 are rotatably connected to the middle of the two extension plates 8, the outer sides of the two bearing shafts 36 are fixedly connected to the positioning frame 37, and the side of the bearing shaft 36 away from the positioning frame 37 is obliquely fixedly connected to the transmission plate 38, and the middle of the transmission plate 38 is provided with a transmission slot 39;

[0070] A force-bearing worm 40, which is slidably connected to the middle of the force-bearing handle 9, and one end of the force-bearing worm 40 located inside the force-bearing handle 9 is fixedly connected to a pushing frame 41, and both ends of the pushing frame 41 are movably connected to the inside of the two transmission through grooves 39, and a plurality of coil springs 42 are fixedly connected between one side of the pushing frame 41 and the force-bearing handle 9;

[0071] In this embodiment, both ends of the top of the push rack 41 are fixedly connected with linkage pins, and the push rack 41 is movably connected to the inside of the transmission slot 39 through the linkage pins. Through the setting of the linkage pins, an anti-falling assembly can be formed between the push rack 41 and the transmission slot 39 to ensure the transmission effect of the push rack 41;

[0072] Embodiment 2:

[0073] This embodiment provides a measurement system of an intelligent clamp for core measurement based on the first embodiment, including:

[0074] A fluid injection mechanism, used to inject the test fluid into the core sample at a flow rate and pressure;

[0075] A fluid discharge mechanism, used for discharging the test fluid;

[0076] An annular pressure mechanism, used to apply annular pressure to the core;

[0077] The pressure measurement component is used to monitor the pressure changes inside the core in real time.

[0078] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0079] Working principle: First, the push rack 41 is pushed by the force-bearing worm 40. Under the connection between the push rack 41 and the transmission slot 39, the transmission plate 38 can be pushed by the displacement of the push rack 41. Since the transmission plate 38 is supported by the bearing shaft 36, the positioning rack 37 can be driven to rotate through the bearing shaft 36, so that the positioning rack 37 is disengaged from the limit ring 3, thereby unlocking the blocking cover 4. Then, the blocking cover 4 is pulled to move the hollow tube 5 and the assembly plate 6 out of the transfer tube 2, and the blocking of the transfer tube 2 is released. The core is then drawn into the core holder body 1 for positioning through the confining pressure of the core holder body 1 and external equipment;

[0080] After the core is positioned, the assembly plate 6 is first moved into the inner cavity of the transfer tube 2, and the traveling wheel 28 is brought into contact with the inner wall of the transfer tube 2. The tunnel pushes the plugging cover 4 to send the hollow tube 5 into the interior of the limiting ring 3. Since the traveling wheel 28 is in contact with the inner wall of the transfer tube 2, when the traveling wheel 28 moves inside the transfer tube 2, it can drive the rotating shaft 27 to rotate, and cooperate with the connection between the two reversing bevel gears 30 to transmit the power of the rotating shaft 27 to the transmission rod 29, and drive the central shaft 22 to rotate through the transmission rod 29. Under the connection between the central shaft 22 and the transmission worm 23, it can be driven by The transmission worm 23 drives the matching worm wheel 24, thereby driving the eccentric plate 21 to rotate through the transmission shaft 20. Under the connection between the eccentric plate 21 and the linkage slot 19, the linkage ring 15 can follow the rotation of the eccentric plate 21 and swing back and forth. Since the linkage plate 17 is connected between the linkage ring 15 and the displacement slide bar 12, when the linkage ring 15 rotates, the linkage plate 17 can push the displacement slide bar 12 to slide back and forth under the support of the extension frame 11, so that the cleaning plate 13 and the compensation plate 14 repeatedly knock on the inner wall of the limit ring 3 to shake off the debris attached to the inner wall of the limit ring 3.

[0081] After the blocking cover 4 is fitted with the limiting ring 3, the force-bearing worm 40 is released. When the pushing frame 41 is displaced, the spiral spring 42 can be stretched. After the force-bearing worm 40 is released, the pushing frame 41 can be reset by the rebound of the spiral spring 42. The connection between the pushing frame 41 and the transmission slot 39 drives the positioning frame 37 to contact the limiting ring 3, thereby realizing the positioning of the blocking cover 4.

[0082] At the same time, the transmission screw 33 is rotated. Under the connection between the displacement sheet 34 and the transmission screw 33, the displacement sheet 34 can be displaced along the transmission screw 33, and the transmission light rod 35 does not need to be connected between the displacement sheet 34 and the displacement seat 26. When the displacement sheet 34 is displaced, the transmission light rod 35 can pull the displacement seat 26 to displace under the limit of the linear guide rod 25, so that the traveling wheel 28 is separated from the inner wall of the transmission tube 2, so that the rotating shaft 27 loses transmission. Under the connection between the displacement sheet 34 and the stabilizing plate 31, when the traveling wheel 28 is away from the inside of the transmission tube 2, the contact frame 32 will contact the central shaft 22, thereby increasing the friction force of the central shaft 22 when rotating.

[0083] When the hollow tube 5 is subsequently pulled out, the traveling wheel 28 cannot drive the rotating shaft 27, so that the cleaning plate 13 and the compensation plate 14 can fit with the transfer tube 2 to drop the debris attached to the inner wall of the transfer tube 2 and push it out of the core clamp body 1, thereby achieving effective cleaning of the transfer tube 2.

[0084] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0085] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent clamp for core measurement, characterized in that: Includes core holder body (1): A core holder body (1), wherein both ends of the core holder body (1) are fixedly connected to a transfer tube (2), and an outer side of the transfer tube (2) away from one end of the core holder body (1) is fixedly connected to a limit ring (3); A plugging cover (4), wherein a hollow tube (5) is fixedly connected to the middle of one side of the plugging cover (4), an end of the hollow tube (5) away from the plugging cover (4) is fixedly connected to an assembly disk (6), and a de-impurity component (7) is provided between the hollow tube (5) and the assembly disk (6), and the de-impurity component (7) is used to clean the inner wall of the limit ring (3); Two extension plates (8), the two extension plates (8) are respectively fixedly connected to the two ends of the blocking cover (4), one side of the blocking cover (4) is fixedly connected with a force-bearing handle (9), a positioning component (10) is assembled between the force-bearing handle (9) and the extension plate (8), and the positioning component (10) is used to position the blocking cover (4).

2. The intelligent clamp for core measurement according to claim 1, characterized in that: The impurity removal component (7) comprises: An extension frame (11), wherein a plurality of extension frames (11) are fixedly connected to the outer side of the extension frame (11), a displacement slide bar (12) is slidably connected to the middle of each extension frame (11), a cleaning plate (13) is fixedly connected to one end of the displacement slide bar (12), and a compensation plate (14) is fixedly connected to one side of the cleaning plate (13); A linkage ring (15), the linkage ring (15) is rotatably connected to one side of the assembly disk (6), one side of the linkage ring (15) is fixedly connected to a carrying shaft rod (16) corresponding to the displacement slide rod (12), the outer side of the carrying shaft rod (16) is rotatably connected to a linkage plate (17), and one end of the linkage plate (17) away from the carrying shaft rod (16) is rotatably connected to the bottom end of the corresponding displacement slide rod (12), a linkage frame (18) is fixedly connected to the middle of one side of the assembly disk (6), and a linkage through groove (19) is provided in the middle of the linkage frame (18); A transmission shaft (20), wherein one end of the transmission shaft (20) is rotatably connected to the inside of the hollow tube (5), one end of the transmission shaft (20) is fixedly connected to an eccentric plate (21), and the end of the eccentric plate (21) away from the transmission shaft (20) is also movably connected to the inside of the linkage through groove (19), one end of the hollow tube (5) close to the transmission shaft (20) is laterally rotatably connected to a central shaft (22), one end of the central shaft (22) located inside the hollow tube (5) is fixedly connected to a transmission worm (23), and one end of the transmission shaft (20) close to the central shaft (22) is fixedly connected to a matching worm wheel (24), and the matching worm wheel (24) is meshingly connected to the transmission worm wheel (23); A driving assembly is mounted on the outside of the hollow tube (5) and is used to drive the central shaft (22) to rotate.

3. The intelligent clamp for core measurement according to claim 2, characterized in that: The drive assembly comprises: A linear guide rod (25), the linear guide rod (25) is fixedly connected to the outer side of the hollow tube (5) near one end of the transmission shaft (20), the outer side of the linear guide rod (25) is slidably connected to a displacement seat (26), the bottom end of the displacement seat (26) is rotatably connected to a rotating shaft (27), and the bottom end of the rotating shaft (27) is fixedly connected to a traveling wheel (28); A transmission rod (29), the transmission rod (29) is rotatably connected to the bottom end of the displacement seat (26) in a transverse manner, and one end of the transmission rod (29) is also slidably connected to the middle of the central shaft (22), the other end of the transmission rod (29) and the top end of the rotating shaft (27) are fixedly connected with a reversing bevel gear (30), and the two reversing bevel gears (30) are meshingly connected; A stabilizing plate (31), wherein the stabilizing plate (31) is slidably connected to one side of the hollow tube (5), the bottom of one end of the stabilizing plate (31) is fixedly connected to a contact frame (32), the other end inside the hollow tube (5) is rotatably connected to a transmission screw (33), the outer side of the transmission screw (33) is threadedly connected to a displacement plate (34), and the end of the stabilizing plate (31) close to the displacement plate (34) is also fixedly connected to the displacement plate (34), one end of the displacement plate (34) is rotatably connected to a transmission light rod (35), and the end of the transmission light rod (35) away from the displacement plate (34) is also rotatably connected to a displacement seat (26).

4. The intelligent clamp for core measurement according to claim 1, characterized in that: The positioning component (10) comprises: Two bearing shafts (36), the two bearing shafts (36) are rotatably connected to the middle parts of the two extension plates (8), the outer sides of the two bearing shafts (36) are fixedly connected to positioning frames (37), and the side of the bearing shafts (36) away from the positioning frames (37) is obliquely fixedly connected to a transmission plate (38), and a transmission through groove (39) is opened in the middle of the transmission plate (38); A force-bearing worm (40), the force-bearing worm (40) is slidably connected to the middle part of the force-bearing handle (9), one end of the force-bearing worm (40) located inside the force-bearing handle (9) is fixedly connected to a pushing frame (41), and the two ends of the pushing frame (41) are respectively movably connected to the inside of two transmission through grooves (39), and a plurality of coil springs (42) are fixedly connected between one side of the pushing frame (41) and the force-bearing handle (9).

5. The intelligent clamp for core measurement according to claim 1, characterized in that: A plurality of limiting holes are provided on the outer side of the limiting ring (3); a plurality of limiting columns are fixedly connected to the edge of the sealing cover (4) close to the hollow tube (5), and there is a clearance fit between the limiting columns and the limiting holes.

6. The intelligent clamp for core measurement according to claim 2, characterized in that: The cleaning plate (13) and the compensation plate (14) are both arc-shaped structures, and the cleaning plate (13) and the compensation plate (14) are staggered.

7. The intelligent clamp for core measurement according to claim 3, characterized in that: The central shaft (22) is a hollow structure, the inner wall of the central shaft (22) is fixedly connected with a guide bar, the outer side of the conductive rod (29) is provided with a guide groove, and the guide bar is also slidably connected inside the guide groove.

8. The intelligent clamp for core measurement according to claim 3, characterized in that: One end of the contact frame (32) close to the central shaft (22) is fixedly connected to a stabilizing arc plate, and the inner side of the stabilizing arc plate is provided with anti-slip grooves.

9. The intelligent clamp for core measurement according to claim 4, characterized in that: Both ends of the top of the pushing frame (41) are fixedly connected with linkage pins, and the pushing frame (41) is movably connected to the inside of the transmission through groove (39) through the linkage pins.

10. A measuring system of an intelligent clamp for core measurement, characterized in that: include: A fluid injection mechanism, used to inject the test fluid into the core sample at a flow rate and pressure; A fluid discharge mechanism, used for discharging the test fluid; An annular pressure mechanism, used to apply annular pressure to the core; The pressure measurement component is used to monitor the pressure changes inside the core in real time.

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