Material taking device for rock mechanics experiment

Abstract

The invention relates to the technical field of mechanical tests, in particular to a material taking device for rock mechanics experiments, which comprises a first position adjusting assembly, a sampling assembly and a separating assembly, and the output end of the first position adjusting assembly is connected with the sampling assembly. The sampling assembly comprises a first electric telescopic rod, a position adjusting disc, a motor, a driving rod and a sampling barrel, the separating assembly comprises a material pushing disc, a material pushing rod and a limiting frame, the limiting frame is fixedly arranged at the output end of the first position adjusting assembly, a baffle is arranged on the limiting frame, the baffle corresponds to the material pushing rod in position, and a gap exists between the baffle and the top of the material pushing rod. When the rock sampling device is used, the whole sampling process does not need to be held by hands, the physical strength of workers is saved, and a rock sample can be driven by the separation assembly to quickly leave the sampling barrel and cannot be clamped.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical testing, and in particular to a sampling device for rock mechanics experiments. Background Art

[0002] Rock mechanics research requires sampling specific areas of rock, typically using a drill or laser. Existing sampling devices require workers to manually support the machine and apply downward pressure. This vibration can strain the worker's arm muscles and consume significant physical effort. Furthermore, rock samples can become stuck in the sampling tube, making them difficult to remove. Summary of the Invention

[0003] The purpose of the present invention is to provide a sampling device for rock mechanics experiments. The entire sampling process does not require manual support, saving the physical strength of the staff, and the rock sample can quickly leave the sampling tube under the drive of the separation component without getting stuck.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a sampling device for rock mechanics experiments, comprising a first positioning assembly, the output end of which is connected to a sampling assembly for driving the sampling assembly to move in a vertical direction, and a separation assembly; the sampling assembly comprises: a first electric telescopic rod, fixedly arranged at the output end of the first positioning assembly, the output end of the first electric telescopic rod facing downward and connected to the top surface of the positioning disk; a motor, fixedly arranged on the bottom surface of the positioning disk, the output end of the motor facing downward and connected to the top of the drive rod ; A sampling cylinder, fixedly arranged at the bottom of the driving rod; the separation component includes: a pushing plate, arranged inside the sampling cylinder, and capable of sliding along the inner wall of the sampling cylinder; a pushing rod, arranged above the pushing plate, the bottom of the pushing rod is fixedly connected to the pushing plate, the top of the pushing rod passes through the top surface of the sampling cylinder and extends to the top of the sampling cylinder; a limiting frame, fixedly arranged at the output end of the first positioning assembly, a baffle is provided on the limiting frame, the baffle corresponds to the position of the pushing rod, and there is a gap between the baffle and the top of the pushing rod.

[0005] Preferably, there are a plurality of push rods, the baffle is annular in structure, and the driving rod is arranged on the inner side of the baffle with a gap between the driving rod and the baffle.

[0006] Preferably, the push plate is provided with a plurality of ventilation holes, the ventilation holes pass through the top and bottom surfaces of the push plate, the side walls of the push rod are provided with a plurality of ventilation grooves, the top of the push rod is provided with an enlarged portion, the top surface of the enlarged portion is provided with an arc-shaped groove, the bottom surface of the baffle is provided with a plurality of arc-shaped protrusions, and the positions of the plurality of arc-shaped protrusions and the plurality of arc-shaped grooves correspond one to one.

[0007] Preferably, it also includes a knocking assembly, which includes a force storage assembly and several firing assemblies, and several firing assemblies are arranged at equal intervals at the edge of the top surface of the sampling cylinder, and the force storage assembly is arranged above the firing assembly; the force storage assembly includes: a transmission plate, the transmission plate is annular in structure, and several knocking rods are provided on the inner side wall of the transmission plate, and the knocking rods are L-shaped in structure, and each side wall of the pushing rod is provided with a convex plate, and the positions of the several knocking rods and the several convex plates correspond one to one, and there is a gap between the bottom of the knocking rod and the top surface of the convex plate; several limiting rods are all provided on the top surface of the transmission plate, and the bottom of the limiting frame is provided with a limiting plate, and the limiting plate is annular in structure. The limiting plate is arranged between the baffle and the transmission plate, and several of the pushing rods are arranged on the inner sides of the transmission plate and the limiting plate. There are gaps between the transmission plate, the limiting plate and the pushing rods. The bottom of the limiting rod is fixedly connected to the transmission plate, and the top of the limiting rod passes through the limiting plate and extends to the top of the limiting plate. The top of the limiting rod is fixedly connected to the limiting piece, and a spring is sleeved on the outer wall of the limiting rod, and the spring is arranged between the transmission plate and the limiting plate; the firing assembly includes: a first push rod, vertically arranged below the transmission plate; an assembly seat, fixedly arranged on the top surface of the sampling cylinder, and the bottom of the first push rod is rotatably connected to the assembly seat.

[0008] Preferably, an arc-shaped guide surface is provided at the bottom edge of the transmission plate, a first arc-shaped contact head is provided at the top of the first push rod, and a limiting strip is provided at the bottom of the assembly seat away from the driving rod.

[0009] Preferably, the knocking assembly also includes a second positioning assembly, which is arranged at the bottom of the driving rod. The second positioning assembly includes a plurality of second push rods. A first ring is provided at the bottom of the driving rod. The second push rod is provided in the first ring and can slide along the inner wall of the first ring. The second push rod is away from one end of the driving rod and corresponds to the middle position of the first push rod.

[0010] Preferably, the second positioning assembly also includes a plurality of third push rods, a second ring is provided at the bottom of the driving rod, the third push rods are arranged in the second ring and can slide along the inner wall of the second ring, and the end of the third push rod away from the driving rod corresponds to the bottom position of the first push rod.

[0011] Preferably, the second positioning assembly also includes a second electric telescopic rod, an assembly cavity is provided inside the bottom of the driving rod, the second electric telescopic rod is fixedly arranged on the inner top surface of the assembly cavity, the output end of the second electric telescopic rod faces downward and is connected to the top of the transmission member, and an adjustment block is provided at the bottom of the transmission member, and a plurality of assembly holes are provided on the side wall of the bottom of the driving rod, and the plurality of assembly holes respectively correspond to the positions of the plurality of firing assemblies, the first ring and the second ring are both provided in the assembly hole and are fixedly connected to the inner wall of the assembly hole, the first ring is provided above the second ring, and the first ends of the second push rod and the third push rod both extend into the assembly cavity.

[0012] Preferably, the second end of the second push rod is inclined upward, the second end of the third push rod is inclined downward, the top and bottom of the adjustment block are both pointed structures, and the middle width of the adjustment block is greater than half the width of the assembly cavity.

[0013] Preferably, the transmission member includes a pressure plate and a transmission rod, the output end of the second electric telescopic rod is fixedly connected to the top surface of the pressure plate, the bottom surface of the pressure plate is fixedly connected to the top of the transmission rod, the bottom of the transmission rod is fixedly connected to the top of the adjusting block, the first end of the second push rod is provided with a second arc-shaped contact head, and the first end of the third push rod is provided with a third arc-shaped contact head.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] (1) When the present invention is in use, the entire sampling process does not require manual support, which saves the physical strength of the staff, and the rock sample can quickly leave the sampling tube under the drive of the separation component, and the rock sample will not get stuck.

[0016] (2) The present invention also includes a striking assembly. When the rock sample is within the sampling barrel, the rock sample and the inner wall of the sampling barrel are tightly attached to each other. Therefore, when the pusher plate pushes the rock sample downward, it encounters greater resistance. The striking assembly can pre-strike the rock sample downward, causing the rock sample to loosen within the sampling barrel and accelerate the rate at which the rock sample is released from the sampling barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is an axonometric drawing of the present invention;

[0018] Figure 2 This is an axonometric view of the first positioning assembly of the present invention;

[0019] Figure 3 is an axonometric view of the sampling assembly of the present invention;

[0020] Figure 4is an axonometric view of the driving rod in the present invention;

[0021] Figure 5 for Figure 4 A magnified image of the middle figure;

[0022] Figure 6 is an axonometric view of the separation component of the present invention;

[0023] Figure 7 It is an axonometric view of the push rod in the present invention;

[0024] Figure 8 This is an axonometric view of the limiting frame in the present invention;

[0025] Figure 9 is an axonometric view of the striking assembly of the present invention;

[0026] Figure 10 This is an axonometric view of the power storage assembly of the present invention;

[0027] Figure 11 is an axonometric view of the firing assembly of the present invention;

[0028] Figure 12 This is an axonometric view of the second positioning assembly of the present invention;

[0029] Figure 13 This is an axonometric drawing of the adjustment block in the present invention;

[0030] Figure 14 is an axonometric view of the vehicle frame of the present invention;

[0031] Figure 15 It is a front cross-sectional view of the present invention after the sampling assembly collects the rock sample;

[0032] Figure 16 for Figure 15 The enlarged image of the middle B;

[0033] Figure 17 It is a front cross-sectional view of the present invention after the spring is compressed;

[0034] Figure 18 for Figure 17 The enlarged image of C in the middle;

[0035] Figure 19 It is a front cross-sectional view of the present invention after the knock rod collides with the convex plate;

[0036] Figure 20 for Figure 19 The enlarged image of the middle D;

[0037] Figure 21 This is a front cross-sectional view of the present invention after the pushing plate pushes the rock sample out of the sampling tube;

[0038] Figure 22 for Figure 21 Enlarged view of Figure E.

[0039] Reference numerals include:

[0040] 1-first adjustment component, 11-assembly frame, 12-lifting drive, 13-receiving tray, 2-sampling component, 21-first electric telescopic rod, 22-adjusting disk, 23-motor, 24-drive rod, 241-assembly cavity, 242-assembly hole, 25-sampling tube, 26-first ring, 27-second ring, 3-separation component, 31-push tray, 311-vent, 32-push rod, 321-vent groove, 322-expansion part, 3221-arc groove, 323-convex plate, 33-limiting frame, 331-baffle, 3311-arc convex block, 332 -Limiting plate, 4-force storage assembly, 41-transmission plate, 411-arc-shaped guide surface, 42-knocking rod, 43-limiting rod, 44-limiting plate, 45-spring, 5-firing assembly, 51-first push rod, 511-first arc-shaped contact head, 52-assembly seat, 521-limiting bar, 6-second adjustment assembly, 61-second push rod, 611-second arc-shaped contact head, 62-third push rod, 621-third arc-shaped contact head, 63-second electric telescopic rod, 64-transmission part, 641-pressure plate, 642-transmission rod, 65-adjustment block, 7-frame, 8-rock sample. DETAILED DESCRIPTION

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0042] Example 1

[0043] See also Figure 1-22 The present invention provides a technical solution: a sampling device for rock mechanics experiments, comprising a first positioning component 1, a sampling component 2 and a separation component 3. The first positioning component 1 is mounted on a vehicle frame 7, and the present invention can be moved to any position through the vehicle frame 7. The sampling component 2 comprises a first electric telescopic rod 21, a positioning disk 22, a motor 23, a driving rod 24 and a sampling tube 25. The separation component 3 comprises a pushing disk 31, a pushing rod 32 and a limiting frame 33, and a baffle 331 is provided on the limiting frame 33. In this embodiment, the first positioning component 1 comprises an assembly frame 11, a lifting drive 12 and a receiving tray 13. The lifting drive 12 comprises a positioning motor, a threaded rod, a vertical rod and a positioning panel. The first electric telescopic rod 21 and the limiting frame 33 are both fixedly mounted on the bottom of the positioning panel.

[0044] See also Figure 1-8 and Figure 15-22 When sampling is required, the positioning motor drives the threaded rod to rotate forward, which in turn drives the positioning panel downward. The positioning panel, constrained by the vertical rod, does not deflect, and the positioning panel drives the sampling assembly 2 and the separation assembly 3 downward. At this point, the sampling assembly 2 is operating, and the motor 23 drives the drive rod 24 and the sampling barrel 25 to rotate together. After the sampling barrel 25 contacts the rock layer, the rock sample 8 is collected. The rock sample 8 then pushes the push plate 31 upward, and the push plate 31 comes into contact with the inner top surface of the sampling barrel 25. The positioning motor then drives the threaded rod in reverse, and the positioning panel drives the sampling assembly 2 and the separation assembly 3 upward. When the sampling barrel 25 is away from the rock layer and a sufficient distance exists between the sampling barrel 25 and the bottom of the assembly frame 11, the first positioning assembly 1 stops operating. Next, the receiving tray 13 is moved to just below the sampling tube 25. The output end of the first electric telescopic rod 21 is shortened, and the adjustment plate 22 drives the motor 23, the drive rod 24, the sampling tube 25, the pushing tray 31, the pushing rod 32, and the rock sample 8 to move upward. Since the position of the limit frame 33 remains unchanged at this time, the distance between the top of the pushing rod 32 and the baffle 331 becomes smaller and smaller. There are several pushing rods 32, and the baffle 331 is annular. When the tops of the several pushing rods 32 all contact the bottom of the baffle 331, the baffle 331 evenly applies pressure to the several pushing rods 32, driving the pushing rods 32 and the pushing tray 31 to move downward together. The pushing tray 31 pushes the rock sample 8 out of the sampling tube 25, and the rock sample 8 falls into the receiving tray 13 and is collected. In this embodiment, the assembly frame 11 can be laterally moved and repositioned on the vehicle frame 7 and locked to the vehicle frame 7 via a locking assembly (not shown). This facilitates sampling at various locations and ensures stability during the sampling process. During use, the present invention eliminates the need for manual support during the entire sampling process, conserving operator effort. Furthermore, the rock sample can be quickly ejected from the sampling barrel 25 by the separation assembly 3, preventing the rock sample 8 from becoming stuck.

[0045] See also Figure 1-8The pusher plate 31 is provided with a plurality of vent holes 311, and the sidewall of the pusher rod 32 is provided with a plurality of vent grooves 321. Therefore, whether the sampling barrel 25 is rotating to collect samples or the pusher plate 31 is pushing the rock sample 8 out of the sampling barrel 25, the interior of the sampling barrel 25 remains connected to the outside world through the vent holes 311 and the plurality of vent grooves 321, and the movement of the rock sample 8 is not hindered by atmospheric pressure. The top of the pusher rod 32 is provided with an enlarged portion 322, the top surface of which is provided with an arc-shaped groove 3221. The bottom surface of the baffle 331 is provided with a plurality of arc-shaped protrusions 3311. When the top of the push rod 32 contacts the bottom of the baffle 331, the arc-shaped protrusion 3311 enters the arc-shaped groove 3221, ensuring that the pressure applied by the baffle 331 to the push rod 32 is vertically downward, and no relative lateral displacement will occur between the baffle 331 and the enlarged portion 322, and no friction will be generated between the baffle 331 and the enlarged portion 322, thereby extending the service life of the present invention.

[0046] Example 2

[0047] Based on Example 1, please refer to Figure 1-11 and Figure 15-22 The present invention also includes a knocking assembly, which includes a force storage assembly 4 and a plurality of firing assemblies 5. The force storage assembly 4 includes a transmission plate 41, a plurality of knocking rods 42, a plurality of limiting rods 43, a plurality of limiting plates 44 and a plurality of springs 45, and the firing assembly 5 includes a first push rod 51 and an assembly seat 52. A convex plate 323 is provided on the side wall of each push rod 32, and a limiting plate 332 is provided at the bottom of the limiting frame 33. When the rock sample 8 is in the sampling tube 25, the rock sample 8 is tightly fitted with the inner wall of the sampling tube 25, so that the push plate 31 encounters a large resistance when pushing the rock sample 8 downward. The knocking assembly can knock the rock sample 8 downward in advance, so that the rock sample 8 is loosened in the sampling tube 25, thereby accelerating the rate at which the rock sample 8 is separated from the sampling tube 25.

[0048] See also Figure 1-11 and Figure 15-22When the output end of the first electric telescopic rod 21 shortens and the top of the push rod 32 has not yet contacted the bottom of the baffle 331, the first push rod 51 moves upward along with the sampling tube 25, forcing the transmission plate 41 and the plurality of limiting rods 43 to move upward together. As the limiting rod 43 slides upward along the limiting plate 332, the transmission plate 41 and the limiting plate 332 together compress the plurality of springs 45, which store elastic potential energy. At this time, the top of the first push rod 51 is pushed, causing the top of the first push rod 51 to rotate toward the outside of the assembly seat 52. The first push rod 51 no longer applies pressure to the transmission plate 41, and the spring 45 releases its elastic potential energy and extends. The spring 45 drives the transmission plate 41 downward, and the transmission plate 41 drives the plurality of knocking rods 42 to strike the plurality of convex plates 323. The limiting plate 44 can prevent the limiting rod 43 from separating from the limiting plate 332. The convex plates 323 transfer kinetic energy to the pusher rods 32, which then transfer the kinetic energy to the rock sample 8 via the pusher tray 31. This causes the rock sample 8 to instantly move downward a short distance, creating a small gap between the pusher tray 31 and the inner top surface of the sampling barrel 25. This loosens the rock sample 8 from the inner wall of the sampling barrel 25. Once the tops of the pusher rods 32 contact the bottom of the baffle 331, the pusher tray 31 moves downward, rapidly pushing the rock sample 8 out of the sampling barrel 25.

[0049] See also Figure 1-11 and Figure 15-22 , an arc-shaped guide surface 411 is provided at the bottom edge of the transmission plate 41, a first arc-shaped contact head 511 is provided at the top of the first push rod 51, and a limit strip 521 is provided at the bottom of the assembly seat 52 away from the driving rod 24. The arc-shaped guide surface 411 can prompt the first push rod 51 to quickly leave the transmission plate 41 when the first push rod 51 rotates outward. When the rock sample 8 is separated from the sampling tube 25 and the firing assembly 5 needs to be reset, the first push rod 51 is pushed to rotate inward in the opposite direction, the first arc-shaped contact head 511 contacts the arc-shaped guide surface 411 and can slide along the arc-shaped guide surface 411, and the first push rod 51 quickly rotates to a vertical state and resets. The limit strip 521 can clamp the bottom of the first push rod 51 to ensure that when the first push rod 51 is in a vertical state, the bottom will not rotate further to the outside of the assembly seat 52.

[0050] Example 3

[0051] Based on Example 2, please refer to Figure 1-22The striking assembly further includes a second positioning assembly 6, which can drive the first push rod 51 to rotate, causing the spring 45 to release its elastic potential energy or to reset the firing assembly 5. The second positioning assembly 6 includes a plurality of second push rods 61 and a plurality of third push rods 62. A first collar 26 and a second collar 27 are provided at the bottom of the driving rod 24. The second push rod 61 is disposed within the first collar 26, and the third push rod 62 is disposed within the second collar 27. When the second push rod 61 slides outward along the inner wall of the first collar 26, it contacts the middle portion of the first push rod 51 and drives the top of the first push rod 51 to rotate outward from the assembly seat 52, causing the first push rod 51 to disengage from the transmission plate 41. When the third push rod 62 slides outward along the inner wall of the second ring 27, the third push rod 62 contacts the bottom of the first push rod 51 and drives the bottom of the first push rod 51 to rotate outward of the assembly seat 52 until the bottom of the first push rod 51 is in contact with the limit bar 521, and the first push rod 51 rotates to the vertical state and resets.

[0052] See also Figure 1-22 The second adjustment assembly 6 also includes a second electric telescopic rod 63, a transmission member 64, and an adjustment block 65. An assembly cavity 241 is provided inside the bottom of the driving rod 24, and the second electric telescopic rod 63 is fixedly arranged on the inner top surface of the assembly cavity 241. A plurality of assembly holes 242 are provided on the side wall of the bottom of the driving rod 24, and the first collar 26 and the second collar 27 are both arranged in the assembly holes 242. When the output end of the second electric telescopic rod 63 is shortened, the second electric telescopic rod 63 drives the adjustment block 65 to move upward through the transmission member 64. The adjustment block 65 contacts the plurality of second push rods 61 and drives the plurality of second push rods 61 to slide outward along the inner wall of the first collar 26 at the same time, driving the first push rod 51 to rotate and disengage from the transmission plate 41. When the output end of the second electric telescopic rod 63 is extended, the second electric telescopic rod 63 drives the adjusting block 65 to move downward through the transmission member 64. The adjusting block 65 contacts the plurality of third push rods 62 and drives the plurality of third push rods 62 to slide outward along the inner wall of the second ring 27 at the same time, driving the first push rod 51 to rotate to a vertical state and reset.

[0053] See also Figure 1-22The second end of the second push rod 61 is tilted upward, while the second end of the third push rod 62 is tilted downward. The top and bottom of the adjustment block 65 are both pointed, and the width of the middle portion of the adjustment block 65 is greater than half the width of the assembly cavity 241. When the adjustment block 65 moves upward, the pointed end of the top of the adjustment block 65 can quickly insert into the gap between the adjacent ends of the plurality of second push rods 61 extending into the assembly cavity 241. As the plurality of second push rods 61 slide along the top inclined surface of the adjustment block 65, the width of the adjustment block 65 changes and widens, and the plurality of second push rods 61 are squeezed outward by the adjustment block 65. The length of the second push rod 61 is greater than that of the third push rod 62. Therefore, after the second push rod 61 contacts the middle portion of the first push rod 51, it can drive the first push rod 51 to rotate and disengage from the transmission plate 41. At this time, the bottom portion of the first push rod 51 pushes the third push rod 62 to continue extending into the assembly cavity 241, and the third push rod 62 does not hinder the movement of the first and second push rods 51. When the adjustment block 65 moves downward and away from the second push rod 61, the pointed end of the bottom of the adjustment block 65 can be quickly inserted into the gap between the third push rods 62 extending into the assembly cavity 241. When the third push rods 62 slide along the bottom inclined surface of the adjustment block 65, the width of the adjustment block 65 changes and becomes wider. The third push rods 62 are squeezed outward by the adjustment block 65. Therefore, after the third push rods 62 contact the bottom of the first push rod 51, they can drive the first push rod 51 to rotate to a vertical position and reset. The second push rods 61 slide down again by gravity and continue to extend into the assembly cavity 241. The second push rods 61 will not hinder the movement of the first push rod 51 and the third push rods 62.

[0054] See also Figure 1-22 The transmission member 64 includes a pressure plate 641 and a transmission rod 642. When the output end of the second electric telescopic rod 63 is extended or shortened, the pressure plate 641 drives the transmission rod 642 downward or upward, thereby driving the adjustment block 65 downward or upward. The diameter of the transmission rod 642 is much smaller than the diameter of the middle portion of the adjustment block 65. When the plurality of second mandrels 61 slide downward again due to gravity, the plurality of second mandrels 61 can be abutted together at one end. At this point, the transmission rod 642 is located within the gap created by the abutment of the plurality of second mandrels 61, ensuring that the second mandrels 61 do not hinder the return of the first mandrel 51. The second mandrel 61 is provided with a second arc-shaped contact head 611, and the third mandrel 62 is provided with a third arc-shaped contact head 621. When the second push rod 61 or the third push rod 62 approaches the adjusting block 65, the second push rod 61 contacts the inclined surfaces at both ends of the adjusting block 65 through the second arc-shaped contact head 611, and the third push rod 62 contacts the inclined surfaces at both ends of the adjusting block 65 through the third arc-shaped contact head 621, thereby reducing friction and extending the service life of the present invention.

[0055] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0056] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A sampling device for rock mechanics experiments, comprising a first positioning assembly, wherein the output end of the first positioning assembly is connected to a sampling assembly for driving the sampling assembly to move in a vertical direction, characterized in that: Also included are separation components; The sampling assembly comprises: a first electric telescopic rod, fixedly disposed at an output end of the first positioning assembly, the output end of the first electric telescopic rod facing downward and connected to a top surface of the positioning disk; A motor is fixedly arranged on the bottom surface of the adjustment plate, with the output end of the motor facing downward and connected to the top of the driving rod; A sampling cylinder is fixedly arranged at the bottom of the driving rod; The separation component comprises: A pushing plate is provided inside the sampling cylinder and is capable of sliding along the inner wall of the sampling cylinder; A push rod is provided above the push tray, the bottom of the push rod is fixedly connected to the push tray, the top of the push rod passes through the top surface of the sampling cylinder and extends to the top of the sampling cylinder; The limiting frame is fixedly arranged at the output end of the first position adjustment component. The limiting frame is provided with a baffle. The position of the baffle corresponds to the position of the push rod and there is a gap between the baffle and the top of the push rod.

2. The rock mechanics experiment sampling device according to claim 1, characterized in that: There are a plurality of push rods, the baffle is annular in structure, and the driving rod is arranged on the inner side of the baffle with a gap between the driving rod and the baffle.

3. The rock mechanics experiment sampling device according to claim 2, characterized in that: The push plate is provided with a plurality of ventilation holes, and the ventilation holes pass through the top and bottom surfaces of the push plate. The side wall of the push rod is provided with a plurality of ventilation grooves. The top of the push rod is provided with an enlarged portion, and the top surface of the enlarged portion is provided with an arc-shaped groove. The bottom surface of the baffle is provided with a plurality of arc-shaped protrusions, and the positions of the plurality of arc-shaped protrusions and the plurality of arc-shaped grooves correspond one to one.

4. The rock mechanics experiment sampling device according to claim 2, characterized in that: It also includes a knocking assembly, which includes a power storage assembly and a plurality of firing assemblies, wherein the plurality of firing assemblies are arranged at equal intervals on the edge of the top surface of the sampling cylinder, and the power storage assembly is arranged above the firing assembly; The power storage component includes: A transmission plate, the transmission plate is annular in structure, a plurality of knocking rods are provided on the inner side wall of the transmission plate, the knocking rods are L-shaped in structure, a convex plate is provided on the side wall of each of the pusher rods, the positions of the plurality of knocking rods and the plurality of convex plates correspond one to one, and there is a gap between the bottom of the knocking rod and the top surface of the convex plate; A plurality of limit rods are provided on the top surface of the transmission plate, a limit plate is provided at the bottom of the limit frame, the limit plate is annular in structure, the limit plate is provided between the baffle and the transmission plate, a plurality of push rods are provided on the inner sides of the transmission plate and the limit plate, and there is a gap between the transmission plate, the limit plate and the push rod, the bottom of the limit rod is fixedly connected to the transmission plate, the top of the limit rod passes through the limit plate and extends to the top of the limit plate, the top of the limit rod is fixedly connected to the limit sheet, a spring is sleeved on the outer wall of the limit rod, and the spring is provided between the transmission plate and the limit plate; The firing assembly includes: a first push rod, vertically arranged below the transmission plate; The assembly seat is fixedly arranged on the top surface of the sampling cylinder, and the bottom of the first push rod is rotatably connected to the assembly seat.

5. The rock mechanics experiment sampling device according to claim 4, characterized in that: An arc-shaped guide surface is provided at the bottom edge of the transmission plate, a first arc-shaped contact head is provided at the top of the first push rod, and a limiting strip is provided at the bottom of the assembly seat away from the driving rod.

6. The rock mechanics experiment sampling device according to claim 4, characterized in that: The knocking assembly also includes a second positioning assembly, which is arranged at the bottom of the driving rod. The second positioning assembly includes a plurality of second push rods. A first ring is provided at the bottom of the driving rod. The second push rod is provided in the first ring and can slide along the inner wall of the first ring. The second push rod is away from one end of the driving rod and corresponds to the middle position of the first push rod.

7. The rock mechanics experiment sampling device according to claim 6, characterized in that: The second positioning assembly also includes several third push rods. A second ring is provided at the bottom of the driving rod. The third push rod is arranged in the second ring and can slide along the inner wall of the second ring. The end of the third push rod away from the driving rod corresponds to the bottom position of the first push rod.

8. The rock mechanics experiment sampling device according to claim 7, characterized in that: The second positioning assembly also includes a second electric telescopic rod, an assembly cavity is provided inside the bottom of the driving rod, the second electric telescopic rod is fixedly arranged on the inner top surface of the assembly cavity, the output end of the second electric telescopic rod faces downward and is connected to the top of the transmission member, and an adjustment block is provided at the bottom of the transmission member. A plurality of assembly holes are provided on the side wall of the bottom of the driving rod, and the plurality of assembly holes respectively correspond to the positions of the plurality of firing assemblies. The first ring and the second ring are both provided in the assembly hole and are fixedly connected to the inner wall of the assembly hole. The first ring is provided above the second ring, and the first ends of the second push rod and the third push rod both extend into the assembly cavity.

9. The rock mechanics experiment sampling device according to claim 8, characterized in that: The second end of the second push rod is inclined upward, the second end of the third push rod is inclined downward, the top and bottom of the adjustment block are both pointed structures, and the middle width of the adjustment block is greater than half the width of the assembly cavity.

10. The rock mechanics experiment sampling device according to claim 9, characterized in that: The transmission member includes a pressure plate and a transmission rod. The output end of the second electric telescopic rod is fixedly connected to the top surface of the pressure plate, the bottom surface of the pressure plate is fixedly connected to the top of the transmission rod, the bottom of the transmission rod is fixedly connected to the top of the adjustment block, the first end of the second push rod is provided with a second arc-shaped contact head, and the first end of the third push rod is provided with a third arc-shaped contact head.

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