A core breaking device

Abstract

The present invention discloses a rock core breaking device, which belongs to the field of rock core technology. It aims at the problem that the human judgment method usually has large errors and it is difficult to accurately obtain the anti-fracture ability of the rock core, which further affects the accuracy of drilling and acquisition strategy formulation. The present invention comprises a placing shell, an interlocking groove is provided on the bottom surface of the inner wall of the placing shell, a through hole is provided on the bottom surface of the inner wall of the interlocking groove, a rock core is provided in the interlocking groove, a collecting tube is fixed on the bottom surface of the placing shell, the collecting tube corresponds to the through hole, the bottom end of the collecting tube is connected to a storage box, silicone-based oil is provided in the storage box, and a pump body is fixed on the bottom surface of the inner wall of the storage box; the present invention causes the elastic sheet to deform, and the moving rod moves downward after being impacted by the silicone-based oil, thereby driving the pointer to move downward, and the fracture ability of the rock core can be obtained by reading the reading on the scale corresponding to the pointer, thereby accurately obtaining the anti-fracture ability of the rock core and avoiding affecting the accuracy of drilling and acquisition strategy formulation.

Description

Technical Field

[0001] The invention belongs to the technical field of rock cores, and in particular relates to a rock core breaking device. Background Art

[0002] During the acquisition process, existing rock cores will be fractured due to the axial force and radial shear force. When the fracture resistance of the rock core needs to be tested to formulate effective drilling and acquisition strategies, the fractured core fragments are usually removed and spliced ​​into a complete rock core. The fracture resistance of the rock core is then roughly judged by observing the number and shape of the fragments. However, this manual judgment method usually has large errors and it is difficult to accurately obtain the fracture resistance of the rock core, which in turn affects the accuracy of the drilling and acquisition strategy formulation.

[0003] Therefore, a core breaking device is needed to solve the problem in the existing technology that the human judgment method usually has large errors and it is difficult to accurately obtain the fracture resistance of the core, which in turn affects the accuracy of drilling and acquisition strategy formulation. Summary of the Invention

[0004] The object of the present invention is to provide a core breaking device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a core breaking device, comprising a placement shell, an interlocking groove is provided on the bottom surface of the inner wall of the placement shell, a through hole is provided on the bottom surface of the inner wall of the interlocking groove, a core is arranged in the interlocking groove, a collecting tube is fixed on the bottom surface of the placement shell, the collecting tube corresponds to the through hole, the bottom end of the collecting tube is connected to a storage box, silicone-based oil is arranged in the storage box, a pump body is fixed on the bottom surface of the inner wall of the storage box, the output end of the pump body is connected to a drain pipe, the drain pipe passes through the storage box, a breaking component is provided at one end of the placement shell, and a display component is provided on one side of the outer wall of the collection tube.

[0006] Furthermore, the misalignment assembly includes a cylinder, which is fixed to one end of the placement shell, an L-shaped plate is fixed to the output end of the cylinder, a motor is fixed to the L-shaped plate near one end of the placement shell, a push column is fixed to the output end of the motor, the push column moves through one end of the placement shell, and a push plate is fixed to one end of the push column.

[0007] Furthermore, the display assembly includes a side box, which is connected to one side of the outer wall of the collection tube, and two positioning columns are fixed between the top and bottom surfaces of the inner wall of the side box, and a moving rod is movably connected between the two positioning columns, a moving column is fixed near the middle position of the top surface of the moving rod, a pointer is fixed on the top of the outer wall of the moving column, and a scale is fixed on the top surface of the side box.

[0008] Furthermore, an elastic sheet is fixed to the inner side wall of the collecting tube, a connecting rope is fixed to one side of the bottom surface of the elastic sheet, and the bottom end of the connecting rope is fixed to the top surface of the moving rod.

[0009] Furthermore, a number of evenly distributed heating rods are fixed on both sides of the bottom surface of the inner side wall of the storage box.

[0010] Furthermore, a semi-annular plate is fixed to the inner wall of the placement shell away from the motor, and three circumferentially distributed openings are opened on the outer wall of the semi-annular plate. A first piston tube is fixed in the opening, and a first piston is movably connected in the first piston tube. A contact column is fixed to the side of the first piston close to the rock core, and a connecting tube is connected to the end of the first piston tube away from the rock core, and an annular tube is connected between the three connecting tubes.

[0011] Furthermore, a second piston tube is fixed to the other end of the placement shell, a second piston is movably connected inside the second piston tube, a threaded rod is fixed to the bottom surface of the second piston, the threaded rod is movably connected to the bottom surface of the second piston tube, a rotating wheel is fixed to the bottom end of the threaded rod, a connecting tube is connected to the top surface of the second piston tube, and one end of the connecting tube is connected to the annular tube.

[0012] Furthermore, two L-shaped rods are fixed on both sides of the bottom surface of the placement shell, the four L-shaped rods are fixed to the outer side walls of the storage box, and a bottom plate is fixed to the bottom surface of the storage box.

[0013] Furthermore, a filter is fixed on the inner wall of the storage box near the top.

[0014] Compared with the prior art, the core breaking device provided by the present invention has at least the following beneficial effects:

[0015] (1) The pump body and the discharge pipe are provided so that the silicone-based oil can be pumped into the placement shell, thereby facilitating the silicone-based oil to pass through the core fragments after the core is broken. The elastic sheet is provided so that after the core is broken, the silicone-based oil in the placement shell can pass through the space between the broken core fragments and enter the collection tube, thereby impacting the elastic sheet and the moving rod, causing the elastic sheet to deform. The moving rod moves downward after being impacted by the silicone-based oil, thereby driving the pointer to move downward. The fracture capacity of the core can be obtained by reading the reading on the scale corresponding to the pointer, thereby accurately obtaining the fracture resistance of the core and avoiding affecting the accuracy of the drilling and collection strategy.

[0016] (2) By setting up the first piston and contact column, when the air in the annular tube enters the corresponding first piston tube, the air can push the first piston to move, thereby moving the contact column. The contact column contacts the outer wall of the core, increasing the rotational friction of the core, and can effectively simulate the radial shear force generated by the core during core collection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the collecting tube of the present invention;

[0019] Figure 3 For the present invention Figure 2 A schematic diagram of the partially enlarged structure of the middle part;

[0020] Figure 4 It is a schematic diagram of the shell structure of the present invention;

[0021] Figure 5 Schematic diagram of the through-hole structure of the present invention;

[0022] Figure 6 This is a schematic cross-sectional structural diagram of the first piston tube of the present invention;

[0023] Figure 7 This is a schematic diagram of the cross-sectional structure of the second piston tube of the present invention.

[0024] In the picture:

[0025] 100, placement shell; 101, semi-annular plate; 102, opening; 103, first piston tube; 104, first piston; 105, contact column; 106, annular tube; 107, connecting tube;

[0026] 200, second piston tube; 201, connecting tube; 202, second piston; 203, threaded rod; 204, rotating wheel;

[0027] 300, fitting groove; 301, through hole; 302, rock core; 303, collection tube; 304, storage box; 305, pump body; 306, discharge pipe;

[0028] 400, side box; 401, positioning column; 402, moving rod; 403, moving column; 404, pointer; 405, scale;

[0029] 500, cylinder; 501, L-shaped plate; 502, motor; 503, push column; 504, push plate;

[0030] 600, elastic sheet; 601, connecting rope;

[0031] 700, L-shaped rod; 701, bottom plate;

[0032] 800. Heating rod; 801. Filter. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. It should be noted that, in the absence of conflict, the embodiments in this disclosure and the features in the embodiments can be combined, separated, interchanged and / or rearranged with each other. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0034] In the accompanying drawings, the sizes and relative sizes of components may be exaggerated for clarity and / or descriptive purposes. When the exemplary embodiments can be implemented differently, the specific process sequence may be performed in a different order than described. For example, two processes described in succession may be performed substantially simultaneously or in a reverse order from the described order. In addition, the same reference numerals represent the same components.

[0035] The terms used herein are for the purpose of describing specific embodiments and are not intended to be restrictive. As used herein, unless the context clearly indicates otherwise, the singular forms "one (kind, person)" and "said (the)" are also intended to include plural forms. In addition, when the terms "comprise" and / or "include" and their variations are used in this specification, the features, integral bodies, steps, operations, parts, assemblies and / or their groups stated are explained, but the presence or addition of one or more other features, integral bodies, steps, operations, parts, assemblies and / or their groups is not excluded. It should also be noted that, as used herein, the terms "substantially", "approximately" and other similar terms are used as approximate terms and not as degree terms, so that they are used to explain the inherent deviations of the measured values, calculated values ​​and / or the values ​​provided that will be recognized by those of ordinary skill in the art.

[0036] See also Figure 1-Figure 7 The present invention provides a core breaking device, comprising a placement shell 100, wherein the bottom surface of the inner wall of the placement shell 100 is provided with an interlocking groove 300, the bottom surface of the inner wall of the interlocking groove 300 is provided with a through hole 301, a core 302 is arranged in the interlocking groove 300, a collecting tube 303 is fixed to the bottom surface of the placement shell 100, the collecting tube 303 corresponds to the through hole 301, the bottom end of the collecting tube 303 is connected to a storage box 304, silicone-based oil is arranged in the storage box 304, a pump body 305 is fixed to the bottom surface of the inner wall of the storage box 304, the output end of the pump body 305 is connected to a drain pipe 306, the drain pipe 306 passes through the storage box 304, a breaking component is provided at one end of the placement shell 100, and a display component is provided on one side of the outer wall of the collection tube 303.

[0037] Further as Figure 1 As shown, the misalignment assembly includes a cylinder 500, which is fixed to one end of the placement shell 100, and an L-shaped plate 501 is fixed to the output end of the cylinder 500. A motor 502 is fixed to the L-shaped plate 501 close to one end of the placement shell 100, and a push column 503 is fixed to the output end of the motor 502. The push column 503 moves through one end of the placement shell 100, and a push plate 504 is fixed to one end of the push column 503.

[0038] The cylinder 500 and L-shaped plate 501 are configured to allow the motor 502 to be driven by the cylinder 500. This allows the push plate 504 to apply an axial force to the core 302 when the core 302 is placed in the fitting groove 300, thereby facilitating the simulation of the axial force applied to the core 302 during collection. The motor 502, push column 503, and push plate 504 are configured such that when the push plate 504 contacts one end of the core 302, the motor 502 is activated to rotate the core 302, thereby facilitating the simulation of the radial shear force applied to the core 302 during collection. This configuration effectively simulates the forces applied to the core 302 during collection, facilitating the simulation of fractures during collection.

[0039] Further as Figure 3 As shown, the display assembly includes a side box 400, which is connected to one side of the outer wall of the collection tube 303, and two positioning columns 401 are fixed between the top and bottom surfaces of the inner wall of the side box 400, and a moving rod 402 is movably connected between the two positioning columns 401, and a moving column 403 is fixed near the middle position on the top surface of the moving rod 402, a pointer 404 is fixed on the top of the outer wall of the moving column 403, and a scale 405 is fixed on the top surface of the side box 400.

[0040] By setting the positioning column 401, the position of the moving rod 402 can be movably limited. By setting the moving column 403, the pointer 404 and the scale 405, when the moving rod 402 moves, it can drive the pointer 404 to move, and then the pointer 404 corresponds to different positions on the scale 405. By reading the reading on the scale 405 corresponding to the pointer 404, the fracture capacity of the core 302 can be obtained.

[0041] This solution has the following working process: when the core 302 is staggered, the core 302 is first placed in the interlocking groove 300, and one end of the core 302 is located in the semi-annular plate 101. Then, the wheel 204 is manually rotated, and the rotation of the wheel 204 drives the threaded rod 203 to rotate, and the rotation of the threaded rod 203 drives the second piston 202 to rotate, so that the air in the second piston tube 200 is compressed and enters the first piston tube 103 through the connecting tube 201, the annular tube 106 and the connecting tube 107. The air entering the first piston tube 103 pushes the first piston 104 to move, so that one end of the contact column 105 contacts the outer wall of the core 302, thereby increasing the friction force when the core 302 rotates. Then the cylinder 500 is started, and the cylinder 500 drives the L-shaped plate 501 to move, and the movement of the L-shaped plate 501 drives the motor 502 to move, so that the push plate 504 contacts the end of the core 302 close to the motor 502, and then a number of heating rods 800 are started, and the heating rods 800 heat the silicone-based oil. When it is heated to a specified temperature, the pump body 305 is started, and the pump body 305 pumps the silicone-based oil into the placement shell 100 through the discharge pipe 306. Since the core 302 is engaged with the fitting groove 30 0 engagement, preventing the silicone-based oil from entering through-hole 301. Then, motor 502 and cylinder 500 are restarted, causing core 302 to rotate while being pushed. Contact pin 105 increases friction on core 302, simulating the radial shear force during core collection. When the axial force acting on core 302 reaches a preset value, core 302 breaks under the combined effects of radial shear and axial forces. Motor 502 and cylinder 500 are then deactivated. The broken core 302 fragments lie on both sides of the housing 100, creating spaces between the fragments. Silicon-based oil flows through these spaces into through-hole 301 and then into collection tube 303. At this point, the silicone-based oil impacts elastic sheet 600, causing it to deform and, in turn, impact movable rod 402 downward. This downward movement of movable rod 402 drives movable pin 403 downward, which in turn drives pointer 404 downward. Pointer 404 moves downward, pointing to a position on scale 405, recording data. Afterwards, the silicone-based oil passes through the filter 801, so that the fine particles in the silicone-based oil are screened by the filter 801, and then the silicone-based oil falls back into the storage box 304, and then the broken fragments in the placement shell 100 are taken out, and another core 302 of the same length in the same area and at the same depth is placed in the placement shell 100, and the heating rod 800 is controlled to another temperature, and the cylinder 500 applies another force to the core 302, and then the core 302 is tested according to the above steps and the data is recorded. After that, several more sets of data are made, and the forces applied to the core 302 by the heating rod 800 and the cylinder 500 in each set are different, so as to realize the detection of the fracture resistance of the core 302 under different pressures and temperatures.

[0042] According to the above working process, it can be known that: through the provided pump body 305 and the drainage pipe 306, the silicone-based oil can be pumped into the placement shell 100, thereby facilitating the silicone-based oil to pass through the broken core 302 fragments. Through the provided elastic sheet 600, after the core 302 is broken, the silicone-based oil in the placement shell 100 can enter the collection tube 303 through the space between the broken core 302 fragments, and then impact the elastic sheet 600 and the moving rod 402, causing the elastic sheet 600 to deform. The moving rod 402 moves downward after being impacted by the silicone-based oil, thereby driving the pointer 404 to move downward. The fracture capacity of the core 302 can be obtained by reading the reading on the scale 405 corresponding to the pointer 404, thereby accurately obtaining the fracture resistance of the core 302, and avoiding affecting the accuracy of the drilling and collection strategy formulation.

[0043] By providing the first piston 104 and the contact column 105, when the air in the annular tube 106 enters the corresponding first piston tube 103, the air can push the first piston 104 to move, thereby moving the contact column 105. The contact column 105 contacts the outer wall of the core 302, thereby increasing the rotational friction of the core 302 and effectively simulating the radial shear force generated by the core 302 during core collection.

[0044] Further as Figure 2 As shown, an elastic sheet 600 is fixed to the inner wall of the collecting tube 303 , a connecting rope 601 is fixed to one side of the bottom surface of the elastic sheet 600 , and the bottom end of the connecting rope 601 is fixed to the top surface of the moving rod 402 .

[0045] By setting the elastic sheet 600, after the core 302 is broken, the silicone-based oil in the placement shell 100 can enter the collection tube 303 through the space between the fragments of the broken core 302, and then impact the elastic sheet 600 and the moving rod 402, causing the elastic sheet 600 to deform. The moving rod 402 moves downward after being impacted by the silicone-based oil, and then drives the pointer 404 to move downward. The fracture capacity of the core 302 can be obtained by reading the reading on the pointer 404.

[0046] Among them, in the initial state, the elastic sheet 600 is in a horizontal position, and there is a gap between the elastic sheet 600 and the inner wall of the collection tube 303 to ensure that the silicone-based oil can smoothly enter the storage box 304. The setting of the elastic sheet 600 is so that after the device is used, the elastic sheet 600 can restore the elastic force to pull the connecting rope 601 to move, and then pull the moving rod 402 to reset, and finally reset the pointer 404.

[0047] Further as Figure 2 As shown, a number of evenly distributed heating rods 800 are fixed on both sides of the bottom surface of the inner wall of the storage box 304.

[0048] The heating rod 800 is provided to heat the silicon-based oil in the storage box 304 so that the heated silicon-based oil can come into contact with the rock core 302 and the performance of the rock core 302 at different temperatures can be tested.

[0049] Further as Figure 6 As shown, a semi-annular plate 101 is fixed to the inner wall of the placement shell 100 away from the motor 502, and three openings 102 distributed in a circumference are opened on the outer wall of the semi-annular plate 101. A first piston tube 103 is fixed in the opening 102, and a first piston 104 is movably connected in the first piston tube 103. A contact column 105 is fixed to the side of the first piston 104 close to the core 302. A connecting tube 107 is connected to the end of the first piston tube 103 away from the core 302, and an annular tube 106 is connected between the three connecting tubes 107.

[0050] By providing the first piston 104 and the contact column 105, when the air in the annular tube 106 enters the corresponding first piston tube 103, the air can push the first piston 104 to move, thereby moving the contact column 105. The contact column 105 contacts the outer wall of the core 302, thereby increasing the rotational friction of the core 302 and effectively simulating the radial shear force generated by the core 302 during core collection.

[0051] Further as Figure 7 As shown, a second piston tube 200 is fixed to the other end of the placement shell 100, and a second piston 202 is movably connected inside the second piston tube 200. A threaded rod 203 is fixed to the bottom surface of the second piston 202, and the threaded rod 203 is movably connected to the bottom surface of the second piston tube 200. A rotating wheel 204 is fixed to the bottom end of the threaded rod 203. A connecting tube 201 is connected to the top surface of the second piston tube 200, and one end of the connecting tube 201 is connected to the annular tube 106.

[0052] The threaded rod 203 is provided so that when the rotating wheel 204 rotates, the threaded rod 203 can rotate, thereby driving the second piston 202 to move, pushing the air in the second piston tube 200 into the first piston tube 103 .

[0053] Further as Figure 2 As shown, two L-shaped rods 700 are fixed on both sides of the bottom surface of the placement shell 100, and the four L-shaped rods 700 are fixed to the outer side walls of the storage box 304. A bottom plate 701 is fixed to the bottom surface of the storage box 304.

[0054] The L-shaped rod 700 is provided to ensure a stable connection between the placement shell 100 and the storage box 304 , and the bottom plate 701 is provided to enhance the stability of the entire device.

[0055] Further as Figure 2 As shown, a filter screen 801 is fixed to the inner wall of the storage box 304 near the top.

[0056] By providing the filter 801 , the fine particles generated when the core 302 is broken can be filtered by the filter 801 , thereby preventing the fine particles from entering the silicone-based oil.

[0057] In summary: when the core 302 is staggered, the core 302 is first placed in the interlocking groove 300, and one end of the core 302 is located in the semi-annular plate 101. Then, the wheel 204 is manually rotated, and the rotation of the wheel 204 drives the threaded rod 203 to rotate, and the rotation of the threaded rod 203 drives the second piston 202 to rotate, so that the air in the second piston tube 200 is compressed and enters the first piston tube 103 through the connecting tube 201, the annular tube 106 and the connecting tube 107. The air entering the first piston tube 103 pushes the first piston 104 to move, so that one end of the contact column 105 contacts the outer wall of the core 302, thereby increasing the friction force when the core 302 rotates. Then the cylinder 500 is started, and the cylinder 500 drives the L-shaped plate 501 to move, and the movement of the L-shaped plate 501 drives the motor 502 to move, so that the push plate 504 contacts the end of the core 302 close to the motor 502, and then a number of heating rods 800 are started, and the heating rods 800 heat the silicone-based oil. When it is heated to a specified temperature, the pump body 305 is started, and the pump body 305 pumps the silicone-based oil into the placement shell 100 through the discharge pipe 306. Since the core 302 is engaged with the fitting groove 30 0 engagement, preventing the silicone-based oil from entering through-hole 301. Then, motor 502 and cylinder 500 are restarted, causing core 302 to rotate while being pushed. Contact pin 105 increases friction on core 302, simulating the radial shear force during core collection. When the axial force acting on core 302 reaches a preset value, core 302 breaks under the combined effects of radial shear and axial forces. Motor 502 and cylinder 500 are then deactivated. The broken core 302 fragments lie on both sides of the housing 100, creating spaces between the fragments. Silicon-based oil flows through these spaces into through-hole 301 and then into collection tube 303. At this point, the silicone-based oil impacts elastic sheet 600, causing it to deform and, in turn, impact movable rod 402 downward. This downward movement of movable rod 402 drives movable pin 403 downward, which in turn drives pointer 404 downward. Pointer 404 moves downward, pointing to a position on scale 405, recording data. Afterwards, the silicone-based oil passes through the filter 801, so that the fine particles in the silicone-based oil are screened by the filter 801, and then the silicone-based oil falls back into the storage box 304, and then the broken fragments in the placement shell 100 are taken out, and another core 302 of the same length in the same area and at the same depth is placed in the placement shell 100, and the heating rod 800 is controlled to another temperature, and the cylinder 500 applies another force to the core 302, and then the core 302 is tested according to the above steps and the data is recorded. After that, several more sets of data are made, and the forces applied to the core 302 by the heating rod 800 and the cylinder 500 in each set are different, so as to realize the detection of the fracture resistance of the core 302 under different pressures and temperatures.

[0058] The core 302 is fractured to different degrees under different temperatures and pressures, that is, the space between the fragments is different, which is reflected in the silicone oil as a different flow rate of the silicone oil through the fragments, and thus a different force applied to the moving rod 402. Ultimately, the size of the space between the fragments of the core 302 is reflected by the corresponding readings on the pointer 404 and the scale 405, that is, the fracture resistance of the core 302. Strong fracture resistance means that the number of fragments after the core 302 is fractured is small and the space between the fragments is small, while poor fracture resistance means that the number of fragments after the core 302 is fractured is large and the space between the fragments is large. Strong fracture resistance means that the flow rate of the silicone oil through the fragments is small, and the corresponding pointer 404 value is small. Poor fracture resistance means that the flow rate of the silicone oil through the fragments is large, the fragments are widely dispersed, and the corresponding pointer 404 value is large.

[0059] The length of the through hole 301 is shorter than the length of the top of the collecting tube 303 , and the length of the core 302 is longer than the length of the through hole 301 .

[0060] The cylinder 500, the motor 502 and the silicone-based oil can be purchased on the market. They are mature technologies in this field and have been fully disclosed, so they are not repeated in the specification.

[0061] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A core breaking device, comprising a placement shell (100), characterized in that: The bottom surface of the inner wall of the placement shell (100) is provided with an engaging groove (300), the bottom surface of the inner wall of the engaging groove (300) is provided with a through hole (301), a rock core (302) is provided in the engaging groove (300), a collecting tube (303) is fixed to the bottom surface of the placement shell (100), the collecting tube (303) corresponds to the through hole (301), the bottom end of the collecting tube (303) is connected to a storage box (304), silicone-based oil is provided in the storage box (304), a pump body (305) is fixed to the bottom surface of the inner wall of the storage box (304), the output end of the pump body (305) is connected to a drain pipe (306), the drain pipe (306) passes through the storage box (304), a fault component is provided at one end of the placement shell (100), and a display component is provided on one side of the outer wall of the collection tube (303).

2. A core breaking device according to claim 1, characterized in that: The staggered assembly includes a cylinder (500), the cylinder (500) is fixed to one end of the placement shell (100), an L-shaped plate (501) is fixed to the output end of the cylinder (500), a motor (502) is fixed to the end of the L-shaped plate (501) close to the placement shell (100), a push column (503) is fixed to the output end of the motor (502), the push column (503) moves through one end of the placement shell (100), and a push plate (504) is fixed to one end of the push column (503).

3. The core breaking device according to claim 1, characterized in that: The display assembly includes a side box (400), the side box (400) is connected to one side of the outer wall of the collection tube (303), two positioning columns (401) are fixed between the top and bottom surfaces of the inner wall of the side box (400), a moving rod (402) is movably connected between the two positioning columns (401), a moving column (403) is fixed near the middle position of the top surface of the moving rod (402), a pointer (404) is fixed to the top of the outer wall of the moving column (403), and a scale (405) is fixed to the top surface of the side box (400).

4. A core breaking device according to claim 3, characterized in that: An elastic sheet (600) is fixed to the inner wall of the collecting tube (303), a connecting rope (601) is fixed to one side of the bottom surface of the elastic sheet (600), and the bottom end of the connecting rope (601) is fixed to the top surface of the moving rod (402).

5. The core breaking device according to claim 1, characterized in that: A plurality of evenly distributed heating rods (800) are fixed on both sides of the bottom surface of the inner side wall of the storage box (304).

6. The core breaking device according to claim 2, characterized in that: A semi-annular plate (101) is fixed on the inner side wall of the placement shell (100) away from the motor (502), and three openings (102) distributed in a circumference are opened on the outer side wall of the semi-annular plate (101). A first piston tube (103) is fixed in the opening (102), and a first piston (104) is movably connected in the first piston tube (103). A contact column (105) is fixed on the side of the first piston (104) close to the rock core (302). A connecting tube (107) is connected to the end of the first piston tube (103) away from the rock core (302), and an annular tube (106) is connected between the three connecting tubes (107).

7. The core breaking device according to claim 6, characterized in that: A second piston tube (200) is fixed to the other end of the placement shell (100), a second piston (202) is movably connected inside the second piston tube (200), a threaded rod (203) is fixed to the bottom surface of the second piston (202), the threaded rod (203) is movably connected to the bottom surface of the second piston tube (200), a rotating wheel (204) is fixed to the bottom end of the threaded rod (203), a connecting tube (201) is connected through the top surface of the second piston tube (200), and one end of the connecting tube (201) is connected to the annular tube (106).

8. The core breaking device according to claim 1, characterized in that: Two L-shaped rods (700) are fixed to both sides of the bottom surface of the placement shell (100), and the four L-shaped rods (700) are fixed to the outer side walls of the storage box (304). A bottom plate (701) is fixed to the bottom surface of the storage box (304).

9. The core breaking device according to claim 1, characterized in that: A filter screen (801) is fixed on the inner side wall of the storage box (304) near the top.

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