Automatic sample preparation equipment for soft rock sample

Abstract

The invention relates to the technical field of rock sample preparation, and discloses automatic soft rock sample preparation equipment which comprises a sample preparation bin, a sample placing cavity is formed in the sample preparation bin, one end of the inner wall of the sample placing cavity is fixedly connected with a simulation mechanism, and the input end of the simulation mechanism communicates with a preparation mechanism; the preparation mechanism is fixedly connected to one side of the outer wall of the sample preparation bin, the simulation mechanism can conduct weathering erosion simulation on a soft rock sample in the sample placing cavity, the preparation mechanism conducts raw material conveying on the simulation mechanism, and the other end of the inner wall of the sample placing cavity is fixedly connected with a weighing mechanism. The weighing calculation of the soft rock sample before and after weathering erosion simulation is realized. Weathering and corrosion simulation can be performed on the soft rock sample through the simulation mechanism and the connecting assembly, the influence of gas and liquid obliquely flowing in the nature on the soft rock sample can be simulated through a specially designed arc plate structure, and the surface water absorption condition can be synchronously simulated during rainwater erosion simulation.

Description

Technical Field

[0001] The invention relates to the technical field of rock sample preparation, in particular to an automatic sample preparation device for soft rock samples. Background Art

[0002] With the continuous development of engineering construction, it has become crucial to accurately grasp the properties of soft rock. In the field of soft rock research, the preparation of representative soft rock samples is the basis for various tests and analyses. At present, the automated sample preparation technology for soft rock has made certain progress and can simulate to a certain extent the mechanical effects such as crushing, twisting and extrusion that soft rock may be subjected to in actual engineering.

[0003] However, the existing automated sample preparation equipment for soft rock samples has obvious limitations. In the actual natural environment, in addition to being subjected to mechanical effects, soft rock also undergoes complex natural processes such as weathering and rain erosion. These processes will have a significant impact on the physical and chemical properties of the soft rock. The existing automated sample preparation equipment cannot simulate these natural processes, making it impossible to accurately test some important properties of soft rock samples.

[0004] The weathering of soft rocks includes physical weathering, chemical weathering and other forms. Physical weathering will gradually loosen the structure of soft rocks and weaken the connection between particles; chemical weathering will change the mineral composition and chemical composition of soft rocks. Rainwater erosion will further accelerate the destruction of soft rocks, dissolving the soluble substances in the soft rocks and changing the pore structure and permeability of soft rocks.

[0005] Because existing automated sample preparation equipment cannot simulate weathering and rain erosion, researchers cannot guarantee the accuracy of data when testing soft rock properties, which poses a greater risk to the design and construction of soft rock projects. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides an automated sample preparation device for soft rock samples, which solves the problem that the existing automated sample preparation equipment cannot simulate weathering and rain erosion of soft rock samples and the accuracy of soft rock property data cannot be guaranteed.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: an automated sample preparation device for soft rock samples, comprising a sample preparation bin, a sample preparation cavity is provided inside the sample preparation bin, one end of the inner wall of the sample preparation cavity is fixedly connected with a simulation mechanism, the input end of the simulation mechanism is connected with a preparation mechanism, the preparation mechanism is fixedly connected to one side of the outer wall of the sample preparation bin, the simulation mechanism can simulate the weathering and erosion of the soft rock sample inside the sample preparation cavity, the preparation mechanism transfers raw materials to the simulation mechanism, the other end of the inner wall of the sample preparation cavity is fixedly connected with a weighing mechanism to realize weighing and calculation of the soft rock sample before and after the weathering and erosion simulation, and a synchronization component is also provided at the bottom of the weighing mechanism, and the synchronization component follows the simulation mechanism to synchronously simulate the surface water level.

[0008] Preferably, the simulation mechanism includes a slip ring, which is rotatably connected to one end of the outer wall of the sample preparation bin, a tension spring is fixedly connected inside the slip ring, a plurality of sliding plates are evenly fixedly connected inside the tension spring, the sliding plate is slidably connected inside the slip ring, one side of the outer wall of the sliding plate is fixedly connected to one end of a limiting rod, the other end of the limiting rod is fixedly connected to an arc plate, one end of the inner wall of the sample preparation bin is fixedly connected to an arc-shaped orifice plate, one end of the arc plate is rotatably connected to one side of the outer wall of the arc-shaped orifice plate, one side of the outer wall of the slip ring is fixedly connected to a micro motor, the output end of the micro motor passes through the slip ring and is fixedly connected to a round roller, one end of a winding rope is wound around the outer wall of the round roller, and the other end of the winding rope is fixedly connected to a limiting rod on one side.

[0009] Preferably, the weighing mechanism includes an upper circular orifice plate, which is slidably connected to the interior of the sample preparation bin, a compression spring is fixedly connected to one side of the inner wall of the sample preparation bin, a slider is slidably connected to the inner wall of the sample preparation bin, and the compression spring is connected to the upper circular orifice plate via the slider.

[0010] Preferably, the preparation mechanism includes a preparation bin, which is fixedly connected to one side of an outer wall of a sample preparation bin, an air pump is fixedly connected to one side of the outer wall of the preparation bin, an input end of the air pump is connected to the outside world, one side of the output end of the air pump is connected to the preparation bin, and the other side of the output end of the air pump is connected to the sample preparation bin.

[0011] Preferably, the synchronization component includes a lower circular orifice plate, which is rotatably connected to one side of the outer wall of the upper circular orifice plate, one side of the outer wall of the lower circular orifice plate is fixedly connected with an annular serration via an L-shaped rod, one side of the inner wall of the sample preparation chamber is fixedly connected with a servo motor, and the output end of the servo motor is fixedly connected with a driving gear 1.

[0012] Preferably, a fixed shaft seat is fixedly connected to one side of the outer wall of the sample preparation bin, the upper and lower sides of the sample preparation bin are rotatably connected via the fixed shaft seat, a double-headed motor is fixedly connected to one side of the inner wall of the sample preparation bin, a long shaft is fixedly connected to both side output ends of the double-headed motor, driving gear 2 is fixedly connected to both ends of the long shaft, and a connecting component is fixedly connected to the outer wall of the long shaft.

[0013] Preferably, the simulation mechanism also includes a limiting ring, one end of which passes through a plurality of sliding plates in sequence, the other end of which is fixedly connected to one side of the inner wall of the sliding ring, and the winding rope is slidably connected to the inside of the limiting ring.

[0014] Preferably, a mixing channel is provided inside the preparation bin.

[0015] Preferably, the annular saw teeth are meshingly connected with a driving gear.

[0016] Preferably, the connecting assembly comprises a telescopic rod, an output end of the telescopic rod is fixedly connected to a clamping plate, and a clamping groove is provided on one side of the inner wall of the long shaft.

[0017] Working principle: Under the connection of the fixed shaft seat, the upper part of the sample preparation chamber can be offset and rotated, and rotated with the fixed shaft seat as the fixed point to open the upper part of the sample preparation chamber, so that the soft rock sample is put into the sample preparation chamber, and the liquid required for rainwater erosion is filled in the sample preparation chamber. The air pump is started to output one side to extract the outside air, squeeze and transmit the liquid inside the sample preparation chamber, and the other side output end directly extracts air into the sample preparation chamber to simulate the weathering and erosion of the soft rock sample inside the sample preparation chamber, so as to obtain more comprehensive physical and chemical property data of the soft rock sample. According to reports, after the staff placed the soft rock sample into the sample preparation chamber, they used an air pump to extract external air to promote the gas-liquid transmission in the preparation chamber. This part of the gas and liquid flowed out from the holes on the surface of the arc-shaped orifice plate to simulate the weathering and corrosion of the soft rock sample in the sample chamber. During the simulation, the micro motor was started to drive the round roller to tighten the winding rope. The winding rope pulled the limit rod on one side to slide inside the slip ring until multiple arc plates were evenly distributed on the outer wall of the arc-shaped orifice plate. Similarly, when the round roller reversed and loosened the winding rope, the tension spring returned to its original state. Under the trend force, the edges of multiple arc plates fit together, forming a large shielding for the rock sample inside the lofting cavity as a whole, so as to simulate the influence of the inclined flow of gas and liquid on the soft rock sample in nature. The telescopic rod can drive the card plate to move up and down. When the card plate is engaged with the inside of the card slot, the long shafts on both sides are connected. When the slip ring rotates, the lower driving gear 2 is meshed with the annular sawtooth, synchronously driving the lower circular orifice plate to rotate, so that the lower circular orifice plate and the upper circular orifice plate rotate relatively, and the holes on the surfaces of the two overlap intermittently, so that the liquid flows out of the lofting cavity intermittently, so as to perform lofting on the soft rock sample. When simulating rainwater erosion, surface water absorption can be simulated synchronously, and the physical and chemical properties of soft rock samples in different geographical locations can be detected more accurately. The soft rock samples are placed on the upper circular hole plate inside the sample cavity. The compression spring is stretched due to gravity, and the slider is driven to slide downward on the inner wall of the sample cavity during the stretching process. The gravity of the soft rock sample can be observed through the sliding distance of the slider. The height difference of the slider before and after the weathering and erosion simulation of the soft rock sample can be used to observe the gravity change of the soft rock sample before and after the simulation, so as to detect the permeability of the soft rock.

[0018] The present invention provides an automatic sample preparation device for soft rock samples. It has the following beneficial effects:

[0019] 1. The present invention can simulate the weathering and corrosion of soft rock samples through simulation mechanisms and connection components, and can also simulate the influence of the inclined flow of gas and liquid in nature on soft rock samples through a specially designed arc plate structure, as well as simulate the surface water absorption during rainwater erosion simulation.

[0020] 2. The present invention can accurately measure the gravity change of soft rock samples before and after weathering and erosion simulation through the weighing mechanism, through the cooperation of the compression spring, the slider and the upper circular orifice plate, and further detect the data of the soft rock including the permeability.

[0021] 3. Under the action of the fixed shaft seat, the upper part of the sample preparation bin can be rotated to facilitate the placement of rock samples. The double-headed motor drives the long shaft and the driving gear to rotate, which can make the slip ring rotate to simulate the inclined weathering and corrosion of different areas of the soft rock sample. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A three-dimensional diagram of the sample preparation device of the present invention;

[0023] Figure 2 It is a schematic diagram of the sample preparation equipment in the present invention;

[0024] Figure 3 It is a display diagram of the sample preparation equipment in the present invention;

[0025] Figure 4 is a cross-sectional view of the sample preparation device of the present invention;

[0026] Figure 5 for Figure 4 A in the enlarged view;

[0027] Figure 6 is a schematic diagram of the simulation mechanism in the present invention;

[0028] Figure 7 It is a display diagram of the simulation mechanism in the present invention;

[0029] Figure 8 for Figure 7 Enlarged view of point B in .

[0030] Among them, 1. sample preparation chamber; 2. sample placement chamber; 3. telescopic rod; 4. clamping plate; 5. clamping slot; 6. limit ring; 7. slip ring; 8. tension spring; 9. sliding plate; 10. limit rod; 11. arc plate; 12. arc hole plate; 13. micro motor; 14. round roller; 15. winding rope; 16. upper circular hole plate; 17. compression spring; 18. slider; 19. preparation chamber; 20. air pump; 21. lower circular hole plate; 22. L-shaped rod; 23. annular serration; 24. servo motor; 25. driving gear one; 26. fixed shaft seat; 27. long shaft; 28. driving gear two; 29. ​​mixing channel; 30. double-head motor. DETAILED DESCRIPTION

[0031] 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.

[0032] Example:

[0033] Please refer to the attached Figure 1 - Attachment Figure 8 The embodiment of the present invention provides an automatic sample preparation device for soft rock samples, including a sample preparation bin 1, a sample preparation chamber 2 is provided inside the sample preparation bin 1, a simulation mechanism is fixedly connected to one end of the inner wall of the sample preparation chamber 2, an input end of the simulation mechanism is connected to a preparation mechanism, the preparation mechanism is fixedly connected to one side of the outer wall of the sample preparation bin 1, the simulation mechanism simulates weathering and erosion of the soft rock sample inside the sample preparation chamber 2, the preparation mechanism transfers raw materials to the simulation mechanism, a weighing mechanism is fixedly connected to the other end of the inner wall of the sample preparation chamber 2, and the weighing calculation of the soft rock sample before and after the weathering and erosion simulation is realized, and a synchronization component is also provided at the bottom of the weighing mechanism, and the synchronization component follows the simulation mechanism to synchronously simulate the surface water level;

[0034] The simulation mechanism includes a slip ring 7, which is rotatably connected to one end of the outer wall of the sample preparation bin 1, a tension spring 8 is fixedly connected inside the slip ring 7, a plurality of sliding plates 9 are evenly fixedly connected inside the tension spring 8, the sliding plate 9 is slidably connected inside the slip ring 7, one end of the outer wall of the sliding plate 9 is fixedly connected to one end of a limit rod 10, the other end of the limit rod 10 is fixedly connected to an arc plate 11, one end of the inner wall of the sample preparation bin 1 is fixedly connected to an arc-shaped orifice plate 12, one end of the arc plate 11 is rotatably connected to one side of the outer wall of the arc-shaped orifice plate 12, one side of the outer wall of the slip ring 7 is fixedly connected to a micro motor 13, the output end of the micro motor 13 passes through the slip ring 7 and is fixedly connected to a round roller 14, one end of a winding rope 15 is wound around the outer wall of the round roller 14, and the other end of the winding rope 15 is fixedly connected to one side of the limit rod 10;

[0035] Specifically, after the staff places the soft rock sample into the sample preparation chamber 1, the air pump 20 draws outside air to promote the gas-liquid transmission in the preparation chamber 19. This part of the gas and liquid flows out from the holes on the surface of the arc-shaped orifice plate 12, and the weathering and corrosion of the soft rock sample in the sample cavity 2 are simulated. During the simulation, the micro motor 13 is started to drive the round roller 14 to tighten the winding rope 15. The winding rope 15 pulls the limit rod 10 on one side to slide inside the slip ring 7 until multiple arc plates 11 are evenly distributed on the outer wall of the arc-shaped orifice plate 12. Similarly, when the round roller 14 reverses the winding rope 15 to loosen the winding rope 15, under the tendency force of the tension spring 8 to restore its original state, the edges of the multiple arc plates 11 fit together, forming a larger shielding of the rock sample inside the sample cavity 2 as a whole, so as to simulate the influence of the oblique flow of gas and liquid on the soft rock sample in nature.

[0036] The weighing mechanism includes an upper circular orifice plate 16, which is slidably connected to the interior of the sample preparation bin 1, a compression spring 17 is fixedly connected to one side of the inner wall of the sample preparation bin 1, a slider 18 is slidably connected to the inner wall of the sample preparation bin 1, and the compression spring 17 is connected to the upper circular orifice plate 16 through the slider 18;

[0037] Specifically, the soft rock sample is placed on the upper circular hole plate 16 inside the sample cavity 2. The compression spring 17 is stretched due to gravity, and the slider 18 is driven to slide downward on the inner wall of the sample cavity 2 during the stretching process. The gravity of the soft rock sample can be observed through the sliding distance of the slider 18. The height difference of the slider 18 before and after the weathering and erosion simulation of the soft rock sample can be used to observe the gravity change of the soft rock sample before and after the simulation, so as to detect the permeability of the soft rock.

[0038] The preparation mechanism includes a preparation bin 19, which is fixedly connected to one side of the outer wall of the sample preparation bin 1, and an air pump 20 is fixedly connected to one side of the outer wall of the preparation bin 19, the input end of the air pump 20 is connected to the outside, one side of the output end of the air pump 20 is connected to the preparation bin 19, and the other side of the output end of the air pump 20 is connected to the sample preparation bin 1;

[0039] Specifically, the preparation bin 19 is filled with liquid required for rainwater erosion, and the air pump 20 is started to output and extract outside air on one side to squeeze and transmit the liquid inside the preparation bin 19, and the output end on the other side directly extracts air into the sample preparation bin 1 to simulate the weathering and erosion of the soft rock sample in the sampling cavity 2, so as to obtain more comprehensive physical and chemical property data of the soft rock sample.

[0040] The synchronization component includes a lower circular orifice plate 21, which is rotatably connected to one side of the outer wall of the upper circular orifice plate 16, and one side of the outer wall of the lower circular orifice plate 21 is fixedly connected to an annular sawtooth 23 through an L-shaped rod 22, and one side of the inner wall of the sample preparation chamber 1 is fixedly connected to a servo motor 24, and the output end of the servo motor 24 is fixedly connected to a driving gear 1 25, and the annular sawtooth 23 is meshed with the driving gear 1 25;

[0041] Specifically, the servo motor 24 is started to drive the driving gear 25 to mesh and rotate with the annular serrations 23, thereby driving the lower circular orifice plate 21 to rotate. During the rotation of the lower circular orifice plate 21, when the holes on its surface overlap with the holes on the surface of the upper circular orifice plate 16, the liquid inside the sample cavity 2 can flow out. Similarly, when the holes on their surfaces do not overlap, the liquid inside the sample cavity 2 is stored.

[0042] A fixed shaft seat 26 is fixedly connected to one side of the outer wall of the sample preparation bin 1, and the upper and lower sides of the sample preparation bin 1 are rotatably connected through the fixed shaft seat 26. A double-headed motor 30 is fixedly connected to one side of the inner wall of the sample preparation bin 1, and a long shaft 27 is fixedly connected to the output ends of both sides of the double-headed motor 30, and a driving gear 2 28 is fixedly connected to both ends of the long shaft 27. A connecting assembly is fixedly connected to the outer wall of the long shaft 27, and the connecting assembly includes a telescopic rod 3, and a card plate 4 is fixedly connected to the output end of the telescopic rod 3. A card slot 5 is provided on one side of the inner wall of the long shaft 27;

[0043] Specifically, under the connection of the fixed shaft seat 26, the upper part of the sample preparation chamber 1 can be offset and rotated, and rotated with the fixed shaft seat 26 as a fixed point, so that the upper part of the sample chamber 2 is opened, and the soft rock sample is put into the sample chamber 2. The upper output end of the double-headed motor 30 rotates to drive the upper long shaft 27 and the second driving gear 28 to rotate. When the micro motor 13 drives the round roller 14 to loosen in the simulation mechanism, the edges of multiple arc plates 11 fit together, and through the meshing transmission of the second driving gear 28, the slip ring 7 starts to rotate, and the inclined weathering and corrosion of different areas of the soft rock sample can be simulated;

[0044] The telescopic rod 3 can drive the card plate 4 to move up and down. When the card plate 4 is engaged with the inside of the card slot 5, the long shafts 27 on both sides are connected. When the slip ring 7 rotates, the lower driving gear 28 is meshed and connected with the annular serrations 23, and the lower circular orifice plate 21 is synchronously driven to rotate, so that the lower circular orifice plate 21 and the upper circular orifice plate 16 rotate relative to each other, and the holes on the surfaces of the two overlap intermittently, so that the liquid intermittently flows out of the sample chamber 2, so that when simulating rainwater erosion on soft rock samples, surface water absorption can be simulated synchronously, and the physical and chemical properties of soft rock samples in different geographical locations can be more accurately detected.

[0045] The simulation mechanism also includes a limit ring 6, one end of which passes through a plurality of sliding plates 9 in sequence, and the other end of the limit ring 6 is fixedly connected to one side of the inner wall of the sliding ring 7, and the winding rope 15 is slidably connected to the inside of the limit ring 6;

[0046] Specifically, under the limiting effect of the limiting ring 6 on the winding rope 15, the winding and releasing of the winding rope 15 moves along the inner wall of the limiting ring 6. At the same time, the tension generated by the winding rope 15 on the limiting rod 10 also extends along the inner wall of the limiting ring 6, thereby avoiding misalignment of the winding rope 15 and causing uneven force on multiple limiting rods 10.

[0047] A mixing channel 29 is provided inside the preparation bin 19 .

[0048] Specifically, under the action of the mixing channel 29, the liquid inside the preparation chamber 19 is mixed more evenly, making the result data of the erosion simulation more accurate.

[0049] 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 automated sample preparation device for soft rock samples, comprising a sample preparation chamber (1), characterized in that: The sample preparation bin (1) is provided with a sample lofting chamber (2) inside, one end of the inner wall of the sample lofting chamber (2) is fixedly connected to a simulation mechanism, the input end of the simulation mechanism is connected to a preparation mechanism, the preparation mechanism is fixedly connected to one side of the outer wall of the sample preparation bin (1), the simulation mechanism can simulate the weathering and erosion of the soft rock sample inside the sample lofting chamber (2), the preparation mechanism transfers raw materials to the simulation mechanism, the other end of the inner wall of the sample lofting chamber (2) is fixedly connected to a weighing mechanism, so as to realize weighing and calculation of the soft rock sample before and after the weathering and erosion simulation, and a synchronization component is also arranged at the bottom of the weighing mechanism, the synchronization component follows the simulation mechanism to synchronously simulate the surface water level.

2. The automatic sample preparation equipment for soft rock samples according to claim 1, characterized in that: The simulation mechanism comprises a slip ring (7), the slip ring (7) is rotatably connected to one end of the outer wall of the sample preparation chamber (1), a tension spring (8) is fixedly connected to the interior of the slip ring (7), a plurality of sliding plates (9) are evenly fixedly connected to the interior of the tension spring (8), the sliding plates (9) are slidably connected to the interior of the slip ring (7), one end of a limiting rod (10) is fixedly connected to one side of the outer wall of the sliding plate (9), the other end of the limiting rod (10) is fixedly connected to an arc plate (11), and the sample preparation chamber (1) is fixedly connected to the inner wall of the slip ring (7). An arc-shaped orifice plate (12) is fixedly connected to one end of the inner wall of the bin (1), one end of the arc plate (11) is rotatably connected to one side of the outer wall of the arc-shaped orifice plate (12), a micro motor (13) is fixedly connected to one side of the outer wall of the slip ring (7), an output end of the micro motor (13) passes through the slip ring (7) and is fixedly connected to a round roller (14), one end of a winding rope (15) is wound around the outer wall of the round roller (14), and the other end of the winding rope (15) is fixedly connected to a limiting rod (10) on one side.

3. The automatic sample preparation equipment for soft rock samples according to claim 1, characterized in that: The weighing mechanism comprises an upper circular orifice plate (16), the upper circular orifice plate (16) is slidably connected to the interior of the sample preparation bin (1), a compression spring (17) is fixedly connected to one side of the inner wall of the sample preparation bin (1), a slider (18) is slidably connected to the inner wall of the sample preparation bin (1), and the compression spring (17) is connected to the upper circular orifice plate (16) via the slider (18).

4. The automatic sample preparation equipment for soft rock samples according to claim 1, characterized in that: The preparation mechanism comprises a preparation bin (19), the preparation bin (19) being fixedly connected to one side of an outer wall of a sample preparation bin (1), an air pump (20) being fixedly connected to one side of the outer wall of the preparation bin (19), an input end of the air pump (20) being connected to the outside, an output end on one side of the air pump (20) being connected to the preparation bin (19), and an output end on the other side of the air pump (20) being connected to the sample preparation bin (1).

5. The automatic sample preparation equipment for soft rock samples according to claim 3, characterized in that: The synchronization component comprises a lower circular orifice plate (21), the lower circular orifice plate (21) is rotatably connected to one side of the outer wall of the upper circular orifice plate (16), one side of the outer wall of the lower circular orifice plate (21) is fixedly connected to an annular sawtooth (23) via an L-shaped rod (22), one side of the inner wall of the sample preparation chamber (1) is fixedly connected to a servo motor (24), and the output end of the servo motor (24) is fixedly connected to a driving gear 1 (25).

6. The automatic sample preparation equipment for soft rock samples according to claim 1, characterized in that: A fixed shaft seat (26) is fixedly connected to one side of the outer wall of the sample preparation chamber (1), and the upper and lower sides of the sample preparation chamber (1) are rotatably connected via the fixed shaft seat (26). A double-headed motor (30) is fixedly connected to one side of the inner wall of the sample preparation chamber (1), and the output ends of both sides of the double-headed motor (30) are fixedly connected to a long shaft (27), and the two ends of the long shaft (27) are fixedly connected to a second driving gear (28), and the outer wall of the long shaft (27) is fixedly connected to a connecting assembly.

7. The automatic sample preparation equipment for soft rock samples according to claim 2, characterized in that: The simulation mechanism also includes a limiting ring (6), one end of which passes through a plurality of sliding plates (9) in sequence, and the other end of which is fixedly connected to one side of the inner wall of the sliding ring (7), and the winding rope (15) is slidably connected to the inside of the limiting ring (6).

8. The automatic sample preparation equipment for soft rock samples according to claim 4, characterized in that: A mixing channel (29) is provided inside the preparation bin (19).

9. The automatic sample preparation device for soft rock samples according to claim 5, characterized in that: The annular saw teeth (23) are meshingly connected with the driving gear 1 (25).

10. The automatic sample preparation equipment for soft rock samples according to claim 6, characterized in that: The connection assembly comprises a telescopic rod (3), the output end of the telescopic rod (3) is fixedly connected to a clamping plate (4), and a clamping groove (5) is provided on one side of the inner wall of the long shaft (27).

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