An intelligent sampling device for mining geological exploration

Abstract

This invention provides an intelligent sampling device for mining geological exploration, belonging to the technical field of geological exploration equipment. It includes: a sampling frame; side support plates vertically fixedly installed at the left and right ends of the sampling frame; a control box fixedly installed at the top front end of the sampling frame; an angle adjustment cylinder vertically fixedly installed on the sampling frame below the control box; and adjusting worm gears longitudinally installed at the middle of the inner sidewalls of both side support plates. This invention achieves the purpose of adjusting the angle of the sampling frame, ensuring that the sampling angle remains perpendicular to the ground, thereby obtaining more accurate soil layer information. This solves the problem that during sampling, due to complex and diverse terrain, manual leveling is required, which is prone to deviation, causing the sampling layer to be skewed and resulting in inaccurate sampling measurements.

Description

Technical Field

[0001] This invention relates to the field of geological exploration equipment technology, and in particular to an intelligent sampling device for mining geological exploration. Background Technology

[0002] Geological exploration involves using various methods to investigate and explore, determine suitable bearing strata, identify geological types based on the bearing capacity of the bearing strata, and discover mineral resources or conduct stratigraphic and geomorphological surveys. Typical geological exploration equipment requires sampling of geological strata to a certain extent. However, due to the complex and diverse terrain, manual leveling is often required during sampling. Manual leveling is prone to deviation, causing the sampling layer to be skewed and resulting in inaccurate sampling measurements. Summary of the Invention

[0003] In view of this, the present invention provides an intelligent sampling device for mining geological exploration to solve the problem that during the sampling process, due to the complex and diverse terrain, it is necessary to manually adjust the level, which is prone to deviation, causing the sampling layer to be skewed and resulting in inaccurate sampling measurements.

[0004] This invention provides an intelligent sampling device for mining geological exploration, specifically comprising: a sampling frame; side support plates vertically fixedly installed at the left and right ends of the sampling frame; a control box fixedly installed at the top front end of the sampling frame; an angle adjustment cylinder vertically fixedly installed on the sampling frame below the control box; an adjustment worm gear longitudinally installed at the middle of the inner sidewall of each of the left and right side support plates; an angle adjustment disc rotatably installed above the adjustment worm gear on the inner side of the side support plate via a rotating shaft; a sampling frame fixedly installed between the left and right angle adjustment discs, the sampling frame being welded from square tubing; a motor head assembly fixedly installed at the upper end of the sampling frame; a lifting sleeve block vertically slidingly clamped at the upper end of the rear sidewall of the sampling frame; a lifting drive frame provided at the upper part of the inner frame of the sampling frame, and a clamping guide frame provided at the lower part of the inner frame of the sampling frame.

[0005] Optionally, omnidirectional wheels are provided at the four corners of the bottom plane of the sampling vehicle frame; a T-shaped directional rail is vertically fixedly installed at the position directly below the angle adjustment cylinder on the front side wall of the sampling vehicle frame.

[0006] Optionally, an energy storage box is provided at the upper end of the side support plate, which provides power to the entire device.

[0007] Optionally, the lower end of the piston rod of the angle adjustment cylinder is vertically fixedly connected to an adjustment block, and the rear end of the adjustment block is vertically slidably engaged with a directional rail; the left and right ends of the adjustment block are respectively provided with transverse adjustment holes that extend from front to back.

[0008] Optionally, the front end of the adjusting worm gear extends out from the front upright plate of the sampling vehicle frame, and the front end of the adjusting worm gear is vertically fixedly connected to an adjusting arm block; the end of the adjusting arm block is vertically provided with a shaft pin, which slides through the transverse adjusting hole.

[0009] Optionally, a worm gear is fixedly installed at the outer end of the angle adjustment disc, and the lower end of the worm gear meshes with the tooth groove portion of the adjusting worm.

[0010] Optionally, guide rails are vertically fixedly installed on the two square tubes at the rear end of the sampling frame, and the front end of the lifting sleeve is slidably engaged with the guide rails by a slider.

[0011] Optionally, a vertical motor is fixedly installed at the bottom front end of the motor head assembly; a balancer is fixedly installed longitudinally at the top end of the motor head assembly, and the balancer is electrically connected to the controller in the control box. The motor will only start after the balancer reaches balance; a guide frame is fixedly installed vertically at the rear end of the motor head assembly; the core rod passes vertically through the middle of the guide frame, and the core rod passes through the middle of the rear end of the motor head assembly and is connected to the motor for rotation via a reducer. A spline groove is annularly opened on the wall of the core rod, and a core sleeve is fixedly connected to the lower end of the core rod. The lower end of the core sleeve is provided with a digging groove.

[0012] Optionally, the upper end of the lifting sleeve is provided with a connecting sleeve, which is rotatably engaged with the upper end of the core-taking sleeve. The core-taking rod is driven through the connecting sleeve, and the upper end of the connecting sleeve is vertically provided with a horizontal hanging shaft.

[0013] Optionally, the rear end of the clamping guide frame is connected to two multi-section clamping arms distributed to the left and right via a rotating shaft; clamping arm seats are vertically installed on the two square tubes at the rear end of the sampling frame at the positions corresponding to the clamping guide frame; clamping plates are connected to the clamping arm seats via guide rods, and the other end of the guide rods is rotatably connected to the end of the clamping arm via a rotating shaft; the opposite side walls of the two clamping plates are both V-groove structures, and clamping rollers are vertically spaced and evenly installed on the staggered groove walls of the two V-grooves. At the same time, the two clamping plates are also staggered front and back, so that the core sleeve is exactly at the center position when aligning and converging; the front end of the clamping arm is fixedly connected to the end of the piston rod of the clamping cylinder fixedly installed on the sampling frame.

[0014] Optionally, a drive arm is rotatably connected to the lifting drive frame via a rotating shaft. The rear end of the drive arm has a through-hole strip-shaped adjustment hole, and the hanging shaft is slidably inserted into the strip-shaped adjustment hole. The rear end of the drive arm is rotatably connected to the upper end of the piston rod of the lifting cylinder, and the lower end of the lifting cylinder is rotatably connected to the lower end of the inner frame of the sampling frame via a rotating shaft.

[0015] Beneficial effects

[0016] 1. In this invention, the end of the adjusting arm block is vertically provided with a shaft pin, which slides through the adjusting hole. The outer end of the angle adjusting disc is fixedly installed with a worm gear, and the lower end of the worm gear meshes with the tooth groove of the adjusting worm. When the balancer transmits horizontal data to the controller, it controls the angle adjusting cylinder to work. By pushing the adjusting block, the adjusting arm block can drive the adjusting worm gear to rotate, while the shaft pin can slide in the adjusting hole, thereby causing the adjusting worm gear to drive the angle adjusting disc to rotate, thereby achieving the purpose of adjusting the angle of the sampling frame so that the sampling angle can be kept perpendicular to the ground, thus obtaining more accurate soil layer information.

[0017] 2. In this invention, a spline groove is annularly formed on the wall of the core rod, and a core sleeve is fixedly connected to the lower end of the core rod. The lower end of the core sleeve is provided with a digging groove. When the motor drives the core rod to rotate, it digs through the core sleeve to facilitate sampling. During the digging process, the core rod can rotate and move vertically in the motor head assembly through the spline groove, thereby achieving the purpose of vertical sampling.

[0018] 3. In this invention, the rear end of the drive arm is rotatably connected to the upper end of the piston rod of the lifting cylinder, and the lower end of the lifting cylinder is rotatably connected to the lower end of the inner frame of the sampling frame through a rotating shaft. In use, the clamping cylinder first clamps the core sleeve part through the clamping plate, and when the motor works, the lifting cylinder works to follow the core sleeve for lifting and lowering operations, so as to achieve the effect of assisting the downward push during tunneling and sampling, and the effect of assisting the lifting during extraction. During the lifting and lowering process, the presence of the clamping roller does not affect the clamping and lifting issues, thereby better ensuring the straightness and verticality of the sampling, so as to ensure the accuracy of the soil layer sampled. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0020] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0021] In the attached diagram:

[0022] Figure 1 This is a schematic diagram of the upper left front axis structure of an embodiment of the present invention.

[0023] Figure 2 This is an embodiment of the present invention. Figure 1 Schematic diagram of the A-section of the middle section.

[0024] Figure 3 This is a schematic diagram of the right rear upper axis structure of an embodiment of the present invention.

[0025] Figure 4 This is an embodiment of the present invention. Figure 3 Schematic diagram of the B-type amplification section.

[0026] Figure 5 This is an axial view of the side support plate in the removed state according to an embodiment of the present invention.

[0027] Figure 6 This is an axial view of the side support plate in the removed state according to an embodiment of the present invention.

[0028] Figure 7 This is a schematic diagram of the clamping guide frame and lifting drive frame portion of an embodiment of the present invention.

[0029] Figure 8 This is an axial view structural diagram of the core-taking rod and the motor head assembly in a separated state according to an embodiment of the present invention.

[0030] Figure 9 This is an embodiment of the present invention. Figure 8 Enlarged structural diagram of section C.

[0031] List of reference numerals

[0032] 1. Sampling frame; 101. Casters; 102. Directional rails; 2. Side support plates; 3. Control box; 4. Angle adjustment cylinder; 401. Adjustment block; 402. Lateral adjustment hole; 5. Adjustment worm gear; 501. Adjustment arm block; 502. Shaft pin; 6. Angle adjustment disc; 601. Worm disc; 7. Sampling frame; 701. Guide rail; 8. Motor head assembly; 801. Motor; 802. Balancer; 803. Guide frame; 8 04. Core-taking rod; 80401. Spline groove; 80402. Core-taking sleeve; 9. Lifting block; 901. Connecting sleeve; 902. Hanging shaft; 10. Clamping guide frame; 1001. Clamping arm; 1002. Clamping arm seat; 1003. Clamping plate; 100301. Clamping roller; 1004. Clamping cylinder; 11. Lifting drive frame; 1101. Drive arm; 1102. Strip-shaped adjustment hole; 1103. Lifting cylinder. Detailed Implementation

[0033] To make the objectives, solutions, and advantages of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Unless otherwise stated, the terms used herein have their ordinary meanings in the art. The same reference numerals in the drawings represent the same parts.

[0034] Example: Please refer to Figures 1 to 9 As shown:

[0035] This invention provides an intelligent sampling device for mining geological exploration, including a sampling frame 1; side support plates 2 are vertically fixedly installed at the left and right ends of the sampling frame 1; a control box 3 is fixedly installed at the top front end of the sampling frame 1; an angle adjustment cylinder 4 is vertically fixedly installed on the sampling frame 1 below the control box 3; an adjustment worm gear 5 is longitudinally installed at the middle of the inner side wall of each of the left and right side support plates 2; an angle adjustment disc 6 is rotatably installed above the adjustment worm gear 5 on the inner side of the side support plate 2 via a rotating shaft; a sampling frame 7 is fixedly installed between the left and right angle adjustment discs 6, the sampling frame 7 being welded from square tubing; a motor head assembly 8 is fixedly installed at the upper end of the sampling frame 7; a lifting sleeve block 9 is vertically slidably clamped at the upper end of the rear side wall of the sampling frame 7; a lifting drive frame 11 is provided at the upper part of the inner frame of the sampling frame 7, and a clamping guide frame 10 is provided at the lower part of the inner frame of the sampling frame 7.

[0036] like Figure 1 and Figure 2 As shown, universal wheels 101 are provided at the four corners of the bottom plane of the sampling vehicle frame 1, which facilitates movement and easy carrying;

[0037] like Figure 1 , Figure 2 and Figure 5 As shown, a T-shaped directional rail 102 is vertically fixedly installed below the angle adjustment cylinder 4 on the front side wall of the sampling vehicle frame 1. An adjustment block 401 is vertically fixedly connected to the lower end of the piston rod of the angle adjustment cylinder 4. The rear end of the adjustment block 401 is vertically slidably engaged with the directional rail 102. Transverse adjustment holes 402 are respectively provided at both ends of the adjustment block 401 to guide it. The front end of the adjustment worm 5 protrudes from the front upright plate of the sampling vehicle frame 1, and an adjustment arm block 501 is vertically fixedly connected to the front end of the adjustment worm 5. A pin 502 is vertically provided at the end of the adjustment arm block 501, and the pin 502 slides through... Connected to the horizontal adjustment hole 402, the outer end of the angle adjustment disc 6 is fixedly installed with a worm gear 601. The lower end of the worm gear 601 meshes with the tooth groove of the adjusting worm 5. When the balancer 802 transmits horizontal data to the controller, it controls the angle adjustment cylinder 4 to work. By pushing the adjustment block 401, the adjustment arm block 501 can drive the adjusting worm 5 to rotate, while the shaft pin 502 can slide in the adjustment hole 402, thereby causing the adjusting worm 5 to drive the angle adjustment disc 6 to rotate, thereby achieving the purpose of adjusting the angle of the sampling frame 7 so that the sampling angle can be kept perpendicular to the ground, thus obtaining more accurate soil layer information.

[0038] like Figure 1 As shown, a battery storage box is provided at the upper end of the side support plate 2, which provides power to the entire device.

[0039] like Figure 3 and Figure 4As shown, guide rails 701 are vertically fixed on the two square tubes at the rear end of the sampling frame 7. The front end of the lifting sleeve block 9 is slidably engaged with the guide rails 701 through a slider to guide the vertical movement of the lifting sleeve block 9, so as to further guide the orientation of the sampling and avoid the problem of uneven soil sampling.

[0040] like Figure 1 , Figure 3 and Figure 4 As shown, a vertical motor 801 is fixedly installed at the bottom front end of the motor head assembly 8; a balancer 802 is fixedly installed longitudinally at the top end of the motor head assembly 8. The balancer 802 is electrically connected to the controller in the control box 3. The motor 801 will only start after the balancer 802 reaches balance; a guide frame 803 is fixedly installed vertically at the rear end of the motor head assembly 8; a core-retrieving rod 804 passes vertically through the middle of the guide frame 803, and the core-retrieving rod 804 passes through the middle of the rear end of the motor head assembly 8 and rotates with the motor 801 through a reducer. The core rod 804 has a spline groove 80401 annularly formed on its wall. The lower end of the core rod 804 is fixedly connected to a core sleeve 80402, which has a tunneling groove at its lower end. When the motor 801 drives the core rod 804 to rotate, it can tunnel through the core sleeve 80402 to facilitate sampling. During the tunneling process, the core rod 804 can rotate and move vertically within the motor head assembly 8 through the spline groove 80401, thereby achieving the purpose of vertical sampling.

[0041] like Figure 4 , Figure 8 and Figure 9 As shown, the upper end of the lifting sleeve 9 is provided with a connecting sleeve 901. The connecting sleeve 901 is rotatably engaged with the upper end of the core-taking sleeve 80402. The core-taking rod 804 is driven through the connecting sleeve 901. The upper end of the connecting sleeve 901 is vertically provided with a horizontal hanging shaft 902, so that the lifting drive frame 11 can adjust the up and down position of the core-taking rod 804 through the lifting sleeve 9, thereby achieving the purpose of controlling the lifting of the core-taking rod 804.

[0042] like Figure 8 and Figure 9As shown, the rear end of the clamping guide frame 10 is connected to two multi-section clamping arms 1001 distributed to the left and right via a rotating shaft; clamping arm seats 1002 are vertically installed on the two square tubes at the rear end of the sampling frame 7, corresponding to the positions of the clamping guide frame 10; clamping plates 1003 are connected to the clamping arm seats 1002 via guide rods, and the other end of the guide rods is rotatably connected to the end of the clamping arms 1001 via a rotating shaft; the side walls of the two clamping plates 1003 are V-groove structures, and clamping rollers 100301 are evenly installed vertically at intervals on the staggered groove walls of the two V-grooves. At the same time, the two clamping plates 1003 are also staggered front and rear, so that the core sleeve 80402 is exactly at the center position during centering and aggregation; the front end of the clamping arm 1001 is fixedly connected to the end of the piston rod of the clamping cylinder 1004 fixedly installed on the sampling frame 7, and the lifting drive frame 11 is rotatably connected to the drive arm 110 via a rotating shaft. 1. The rear end of the drive arm 1101 is provided with a strip-shaped adjustment hole 1102 that runs through the left and right sides. The hanging shaft 902 is slidably inserted into the strip-shaped adjustment hole 1102. The rear end of the drive arm 1101 is rotatably connected to the upper end of the piston rod of the lifting cylinder 1103. The lower end of the lifting cylinder 1103 is rotatably connected to the lower end of the inner frame of the sampling frame 7 through a rotating shaft. In use, the clamping cylinder 1004 first clamps the core sleeve 80402 part through the clamping plate 1003. After the motor 801 works, the lifting cylinder 1103 works to follow the core sleeve 80402 for lifting and lowering operations. This achieves the effect of assisting in pushing down during tunneling and sampling, and assisting in lifting during extraction. During the lifting and lowering process, the presence of the clamping roller 100301 does not affect the clamping and lifting, thus better ensuring the straightness and verticality of the sampling, so as to ensure the accuracy of the soil layer sample.

[0043] The specific usage and function of this embodiment: During use, the equipment is first placed along an inclined surface according to the terrain. The equipment is then turned on, and the balancer 802 begins operation. A shaft pin 502 is vertically provided at the end of the adjusting arm block 501, and the shaft pin 502 slides through the transverse adjustment hole 402. A worm gear 601 is fixedly installed on the outer end of the angle adjustment disc 6, and the lower end of the worm gear 601 meshes with the toothed portion of the adjusting worm 5. When the balancer 802 transmits horizontal data to the controller, it controls the angle adjustment cylinder 4 to operate, pushing the adjusting connecting block 401 so that the adjusting arm block 501 can drive the adjusting worm 5 to rotate. The pivot pin 502 can slide in the transverse adjustment hole 402, thereby causing the adjusting worm 5 to drive the angle adjustment disc 6 to rotate. The middle part of the guide frame 803 vertically passes through the core rod 804. The core rod 804 passes through the middle of the rear end of the motor head assembly 8 and is connected to the motor 801 through a reducer. The core rod 804 has a spline groove 80401 annularly opened on its wall. The lower end of the core rod 804 is fixedly connected to the core sleeve 80402. The lower end of the core sleeve 80402 is provided with a digging groove. When the motor 801 drives the core rod 804 to rotate, the core sleeve 80402 can be used to dig into the soil layer. The tunneling process facilitates sampling. The opposing sidewalls of the two clamping plates 1003 are V-groove structures, and clamping rollers 100301 are vertically spaced and evenly installed on the staggered walls of the two V-grooves. Simultaneously, the two clamping plates 1003 are also staggered front to back, ensuring that the core-taking sleeve 80402 is precisely at the center during alignment. The front end of the clamping arm 1001 is fixedly connected to the end of the piston rod of the clamping cylinder 1004, which is fixedly mounted on the sampling frame 7. A drive arm 1101 is rotatably connected to the lifting drive frame 11 via a rotating shaft. The rear end of the drive arm 1101 has a through-hole strip-shaped adjustment hole. 1102, the hanging shaft 902 is slidably inserted into the strip-shaped adjustment hole 1102; the rear end of the drive arm 1101 is rotatably connected to the upper end of the piston rod of the lifting cylinder 1103, and the lower end of the lifting cylinder 1103 is rotatably connected to the lower end of the inner frame of the sampling frame 7 through a rotating shaft. In use, the clamping cylinder 1004 first clamps the core sleeve 80402 part through the clamping plate 1003, and when the motor 801 works, the lifting cylinder 1103 works to follow the core sleeve 80402 for lifting and lowering operations, so as to achieve the effect of assisting the downward push when tunneling and sampling, and the effect of assisting the lifting when withdrawing.

[0044] Finally, it should be noted that when describing the position of each component and the mating relationship between them, the present invention usually uses one or a pair of components as examples. However, those skilled in the art should understand that such positions, mating relationships, etc., are also applicable to other components or other pairs of components.

[0045] The above description is merely an exemplary embodiment of the present invention and is not intended to limit the scope of protection of the present invention, which is determined by the appended claims.

Claims

1. An intelligent sampling device for mining geological exploration, characterized in that, include: Sampling frame (1); side support plates (2) are fixedly installed vertically upward at the left and right ends of the sampling frame (1); a control box (3) is fixedly installed at the top front end of the sampling frame (1); an angle adjustment cylinder (4) is fixedly installed vertically on the sampling frame (1) below the control box (3); an adjustment worm (5) is installed longitudinally at the middle position of the inner side wall of the left and right side support plates (2); an angle adjustment disc (6) is rotatably installed above the adjustment worm (5) on the inner side of the side support plate (2) via a rotating shaft; a sampling frame (7) is fixedly installed between the left and right angle adjustment discs (6), and the sampling frame (7) is welded from square tubes; an electric motor is fixedly installed at the upper end of the sampling frame (7). The sampling frame (7) has a vertically sliding lifting block (9) mounted on the upper end of the rear side wall of the sampling frame (7); the sampling frame (7) has a lifting drive frame (11) on the upper part of the inner frame and a clamping guide frame (10) on the lower part of the inner frame; the side support plate (2) has a battery box at the upper end, which provides power to the entire equipment; the sampling frame (7) has guide rails (701) vertically fixed on the two square tubes on the left and right sides of the rear end of the sampling frame (7), and the front end of the lifting block (9) is slidably engaged with the guide rails (701) by a slider; the motor head assembly (8) has a vertically fixed motor (801) at the bottom of the front end; the motor head assembly (8) has a balancer (802) vertically fixed on the upper end of the motor head assembly (8), and the balancer (802) has a vertically fixed motor (801) at the bottom of the front end. 02) Electrically connected to the controller in the control box (3), the motor (801) will start after the balancer (802) reaches balance; the rear end of the motor head assembly (8) is vertically fixed with a guide frame (803); the middle part of the guide frame (803) vertically passes through the core rod (804), the core rod (804) passes through the middle of the rear end of the motor head assembly (8) and is connected to the motor (801) through the reducer; the core rod (804) has a spline groove (80401) on its rod wall; the lower end of the core rod (804) is fixedly connected with a core sleeve (80402); the lower end of the core sleeve (80402) is provided with a digging groove; the upper end of the lifting sleeve (9) is provided with a connecting sleeve (90) 1) The upper ends of the connecting sleeve (901) and the core-taking sleeve (80402) are rotatably engaged. The core-taking rod (804) is driven through the connecting sleeve (901). The upper end of the connecting sleeve (901) is vertically provided with a horizontal hanging shaft (902). The lifting drive frame (11) is rotatably connected to the drive arm (1101) through a rotating shaft. The rear end of the drive arm (1101) is provided with a strip-shaped adjustment hole (1102) that runs through the left and right sides. The hanging shaft (902) is slidably inserted into the strip-shaped adjustment hole (1102). The rear end of the drive arm (1101) is rotatably connected to the upper end of the piston rod of the lifting cylinder (1103). The lower end of the lifting cylinder (1103) is rotatably connected to the lower end of the inner frame of the sampling frame (7) through a rotating shaft.The adjusting worm gear (5) drives the angle adjusting disk (6) to rotate, thereby adjusting the angle of the sampling frame (7).

2. The intelligent sampling device for mining geological exploration as described in claim 1, characterized in that: The sampling vehicle frame (1) is provided with universal wheels (101) at the four corners of the bottom plane; a T-shaped directional rail (102) is vertically fixedly installed at the position directly below the angle adjustment cylinder (4) on the front side wall of the sampling vehicle frame (1).

3. The intelligent sampling device for mining geological exploration as described in claim 2, characterized in that: The lower end of the piston rod of the angle adjustment cylinder (4) is vertically fixedly connected to an adjustment block (401), and the rear end of the adjustment block (401) is vertically slidably engaged on the directional rail (102); the left and right ends of the adjustment block (401) are respectively provided with transverse adjustment holes (402) that pass through from front to back.

4. The intelligent sampling device for mining geological exploration as described in claim 3, characterized in that: The front end of the adjusting worm (5) extends out from the front upright plate of the sampling frame (1), and the front end of the adjusting worm (5) is vertically fixedly connected to the adjusting arm block (501); the end of the adjusting arm block (501) is vertically provided with a shaft pin (502), which slides through the transverse adjusting hole (402).

5. The intelligent sampling device for mining geological exploration as described in claim 1, characterized in that: The outer end of the angle adjustment disc (6) is fixedly installed with a worm gear (601), and the lower end of the worm gear (601) meshes with the tooth groove of the adjusting worm (5).

6. The intelligent sampling device for mining geological exploration as described in claim 1, characterized in that: The rear end of the clamping guide frame (10) is connected by a pivot to two left-right distributed multi-section clamping arms (1001); clamping arm seats (1002) are vertically installed on the left and right square tubes at the rear end of the sampling frame (7) at the positions corresponding to the clamping guide frame (10); clamping arm seats (1002) are connected to clamping plates (1003) via guide rods on the clamping arm seats (1002), and the other end of the guide rods is rotatably connected to the end of the clamping arms (1001) via pivots; the left and right sides of the clamping guide frame (1001) are connected by two multi-section clamping arms (1001) via pivots; The opposing sidewalls of the clamping plates (1003) are all V-groove structures, and clamping rollers (100301) are evenly installed vertically at intervals on the groove walls of the two staggered V-grooves. At the same time, the left and right clamping plates (1003) are also staggered in front and behind. When they are aligned and converged, the core sleeve (80402) is exactly at the center position. The front end of the clamping arm (1001) is fixedly connected to the end of the piston rod of the clamping cylinder (1004) fixedly installed on the sampling frame (7).

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