A stratified sampling device for geological exploration engineering

Abstract

The present invention belongs to the technical field of detection sampling devices, and specifically discloses a layered sampling device for geological exploration engineering. It is aimed at the problem that the existing sampling devices have poor continuity and low representativeness in taking out samples. It includes: a frame; a mounting platform, which is slidably connected to the frame, and the frame is provided with a hydraulic rod, and the telescopic end of the hydraulic rod is fixedly connected to the mounting platform; a sampling tube, which is detachably mounted on the lower side of the mounting platform; a drilling tube, which is sleeved on the outer side of the sampling tube and rotatably connected thereto; a driving assembly, which is installed on the frame and is used to drive the drilling tube to rotate. The present invention cuts out a rock column through a drilling tube, and uses a sampling tube to receive the rock column therein, thereby reducing the impact of the drilling tube on the rock column when rotating, thereby avoiding the situation where the rock column breaks and causes poor sampling continuity, thereby improving the sampling integrity of the device and ensuring the representativeness of the taken samples.

Description

Technical Field

[0001] The invention relates to the technical field of detection sampling devices, and in particular to a stratified sampling device for geological exploration engineering. Background Art

[0002] The stratified sampling device in geological exploration engineering is a device used to obtain representative rock and soil samples from the strata for geological analysis, mineral exploration, environmental assessment and other work. These devices can help geologists understand the geological structure and material composition at different depths underground. According to different application requirements and technical means, the stratified sampling device can be divided into many types, the common ones include: drilling sampling, in-situ samplers and downhole sampling tools, etc. The commonly used devices for drilling sampling include: spiral drilling rigs, which are suitable for sampling soft soil or loose sediments; impact drilling rigs, which drive the drill bit into the stratum by hammering or vibration, and are suitable for harder rocks or soils; rotary drilling rigs, which use rotary cutting action to drill into the stratum, are suitable for strata of various hardness, and can obtain continuous core samples.

[0003] When the existing rotary drilling rig is taking samples, the drill rod rotates rapidly, and the inner side of the drill rod will constantly rub against the cut rock column. The rock column will break due to the torque applied by the drill rod. After the rock column breaks, its continuity will be poor, and the sample taken out will be incomplete and low in representativeness. Summary of the invention

[0004] In order to overcome the shortcomings mentioned in the above background technology, the present invention provides a stratified sampling device for geological exploration engineering.

[0005] The technical solution of the present invention is: a stratified sampling device for geological exploration engineering, comprising:

[0006] Frame;

[0007] A mounting platform is slidably connected to the frame, the frame is provided with a hydraulic rod, and a telescopic end of the hydraulic rod is fixedly connected to the mounting platform;

[0008] A sampling tube, detachably mounted on the lower side of the mounting platform;

[0009] A drilling tube, which is sleeved on the outside of the sampling tube and rotatably connected thereto;

[0010] A driving assembly is installed on the frame and is used to drive the drilling pipe to rotate.

[0011] Furthermore, the lower side of the drilling tube is a drill head, and the diameter of the inner side of the drill head of the drilling tube is equal to the diameter of the inner side of the sampling tube.

[0012] Furthermore, the driving assembly includes:

[0013] A motor is arranged on the frame, and an output end of the motor is connected to a telescopic rod via a first universal joint;

[0014] A sliding seat is slidably connected to the mounting platform, a first spring is arranged between the sliding seat and the mounting platform, the sliding seat is rotatably connected to a rotating shaft, the rotating shaft and the telescopic rod are connected via a second universal joint, and the rotating shaft and the drilling pipe are driven via a gear ring.

[0015] Furthermore, it also includes:

[0016] There are several puncture posts, and the drilling tube is provided with several installation grooves, and the puncture posts are slidably connected to adjacent installation grooves.

[0017] Furthermore, it also includes:

[0018] A first shell is slidably connected to the mounting platform, wherein a sliding plate is slidably connected inside the first shell;

[0019] The annular shell is rotatably connected to the outer side of the drilling tube, and the plurality of mounting grooves are all connected to the annular shell, and the annular shell is connected to the first shell body.

[0020] Furthermore, the volume of the first shell is greater than the sum of the volumes of all the installation slots.

[0021] Furthermore, it also includes:

[0022] A threaded rod, rotatably connected to the mounting platform, the threaded rod is rotatably connected to the sliding plate, and the threaded rod is threadedly connected to the first housing;

[0023] A first transmission wheel, fixedly connected to the threaded rod;

[0024] The second transmission wheel is fixedly connected to the rotating shaft, and the second transmission wheel and the first transmission wheel transmit power through friction.

[0025] Furthermore, it also includes:

[0026] A sliding member, the mounting platform is provided with a first sliding groove, the sliding member is slidably connected in the first sliding groove, and the sliding member is used to limit the sliding seat.

[0027] Furthermore, it also includes:

[0028] A sliding column, the mounting platform is provided with a second sliding groove, the sliding column is slidably connected to the second sliding groove, a second spring is provided between the sliding column and the mounting platform, and the first sliding groove is connected to the second sliding groove.

[0029] Furthermore, it also includes:

[0030] A second shell, fixedly connected to the mounting platform, the second shell is communicated with the annular shell, the second shell is slidably connected to a sliding rod, and a third spring is arranged between the sliding rod and the second shell;

[0031] There are a plurality of protrusions, all of which are fixedly connected to the first transmission wheel, and the protrusions are used to squeeze the sliding rod.

[0032] The beneficial effects of adopting the above scheme are as follows: the present invention cuts out rock columns through the drilling tube, and uses the sampling tube to collect the rock columns therein, thereby reducing the impact of the drilling tube on the rock columns when rotating, thereby avoiding the situation where the rock column breaks and causes poor sampling continuity, thereby improving the sampling integrity of the device and ensuring the representativeness of the samples taken out.

[0033] The bottom of the rock column is pierced by a plurality of piercing columns, so that the rock column is separated from the rock mass, thereby facilitating the device to take out the rock column and ensure the integrity of the sample.

[0034] The sliding rod is squeezed alternately by a plurality of protrusions, so that the sliding rod vibrates back and forth, and the vibration is transmitted to the piercing column, so that the piercing column can still quickly separate the harder rock from the rock mass. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0036] Figure 2 It is a schematic diagram of the three-dimensional structure of the sliding seat and the rotating shaft of the present invention;

[0037] Figure 3 It is a three-dimensional structural cross-sectional view of the sampling tube and the drilling tube of the present invention;

[0038] Figure 4 It is a schematic diagram of the three-dimensional structure of the sampling tube, the drilling tube and the puncture column of the present invention;

[0039] Figure 5 It is a three-dimensional structural schematic diagram of the threaded rod and the first transmission wheel of the present invention;

[0040] Figure 6 It is a schematic diagram of the three-dimensional structure of the sliding member and the sliding column of the present invention.

[0041] Parts names and serial numbers in the figure: 1-frame, 2-mounting platform, 201-first slide, 202-second slide, 3-hydraulic rod, 4-sampling tube, 5-drilling tube, 501-mounting slot, 6-motor, 7-telescopic rod, 8-sliding seat, 9-rotating shaft, 10-puncture column, 11-first shell, 12-sliding plate, 13-annular shell, 14-threaded rod, 15-first transmission wheel, 16-second transmission wheel, 17-sliding member, 18-sliding column, 19-second shell, 20-sliding rod, 21-protrusion. DETAILED DESCRIPTION

[0042] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and should not be construed as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0043] A stratified sampling device for geological exploration engineering, such as Figure 1-Figure 3 and Figure 6 As shown, it includes: a frame 1; a mounting platform 2, which is slidably connected to the frame 1, and the frame 1 is provided with a hydraulic rod 3, and the telescopic end of the hydraulic rod 3 is fixedly connected to the mounting platform 2; a sampling tube 4, which is detachably mounted on the lower side of the mounting platform 2; a drilling tube 5, which is sleeved on the outer side of the sampling tube 4 and is rotatably connected thereto; a driving assembly, which is installed on the frame 1 and is used to drive the drilling tube 5 to rotate. The lower side of the drilling tube 5 is a drill head, and the diameter of the inner side of the drilling head of the drilling tube 5 is equal to the diameter of the inner side of the sampling tube 4.

[0044] The driving assembly includes: a motor 6, which is arranged on the frame 1, and the output end of the motor 6 is connected to the telescopic rod 7 through a first universal joint; a sliding seat 8, which is slidably connected to the mounting platform 2, and a first spring is arranged between the sliding seat 8 and the mounting platform 2, and the sliding seat 8 is rotatably connected to a rotating shaft 9, and the rotating shaft 9 is connected to the telescopic rod 7 through a second universal joint, and the rotating shaft 9 and the drilling pipe 5 are driven by a gear ring.

[0045] In the above scheme, the purpose is to take out a complete sample from the rock mass to ensure the representativeness of the sample. The frame 1 includes a base, a top plate and four support rods. The support rods also serve as guide rails for the mounting platform 2 to ensure the stable movement of the mounting platform 2. The hydraulic rod 3 is located on the lower side of the top plate of the frame 1. The mounting platform 2 and the sampling tube 4 can be connected by threads, bolts and buckles, etc., and can be set as needed. Lubricating oil can be applied between the drilling tube 5 and the sampling tube 4 to reduce the friction between the two. The thickness of the drill head of the drilling tube 5 is greater than that of other parts to ensure the strength of the drill bit. The diameter of the inner side of the drill head of the drilling tube 5 is equal to the diameter of the inner side of the sampling tube 4, so that the drilling tube 5 cuts the sample from the rock mass and just enters the sampling tube 4. The first universal joint, the second universal joint and the telescopic rod 7 are all used to adapt to the change of the position of the rotating shaft 9 relative to the motor 6, so as to ensure the transmission between the output shaft of the motor 6 and the rotating shaft 9.

[0046] Working process: When using this device, first place this device at the sampling location and fix it, then start the hydraulic rod 3 and the motor 6, the output shaft of the motor 6 drives the telescopic rod 7 to rotate through the first universal joint, the telescopic rod 7 drives the rotating shaft 9 to rotate through the second universal joint, the rotating shaft 9 drives the drilling tube 5 to rotate through the gear ring, and at the same time the telescopic end of the hydraulic rod 3 extends, pushing the installation platform 2 to move downward, the installation platform 2 drives the sampling tube 4 and the drilling tube 5 to move downward, the drilling tube 5 cuts the rock mass, and the rock column enters the sampling tube 4. When the specified depth is reached, the motor 6 is turned off, the telescopic end of the hydraulic rod 3 is shortened and drives the installation platform 2 to move upward, the installation platform 2 drives the sampling tube 4 and the drilling tube 5 to move upward, the sampling tube 4 brings the rock column out of the sampling hole, and then the hydraulic rod 3 is turned off, and then the rock column is taken out from the sampling tube 4.

[0047] Further, such as Figure 4 As shown, it also includes: a plurality of puncture posts 10 ; the drilling tube 5 is provided with a plurality of mounting grooves 501 ; and the puncture posts 10 are slidably connected to adjacent mounting grooves 501 .

[0048] In the above scheme, the purpose is to separate the rock column from the rock mass, so that the device can more easily remove the rock column. The puncture column 10 is in a bullet shape, which is used to improve the penetration of the puncture column 10 on the rock, so that the rock column is more easily separated from the rock mass.

[0049] Further, such as Figure 5 and Figure 6 As shown, it also includes: a first shell 11, which is slidably connected to the mounting platform 2, and a sliding plate 12 is slidably connected inside the first shell 11; an annular shell 13, which is rotatably connected to the outside of the drilling tube 5, and a plurality of mounting grooves 501 are all connected to the annular shell 13, and the annular shell 13 is connected to the first shell 11. The volume of the first shell 11 is greater than the sum of the volumes of all the mounting grooves 501.

[0050] In the above scheme, the purpose is to drive the puncture column 10 to be inserted into the bottom of the rock column. The first housing 11 is slidably connected to the mounting platform 2 through a connecting rod, and the mounting groove 501 and the first housing 11 are filled with liquid for transmission, which can be hydraulic oil or water. The annular shell 13 and the drilling pipe 5 are sealed to prevent liquid leakage. The volume of the first housing 11 is greater than the sum of the volumes of all the mounting grooves 501, so that the liquid in the first housing 11 can push all the puncture columns 10 to fully extend from the mounting grooves 501.

[0051] Further, such as Figure 5 As shown, it also includes: a threaded rod 14, which is rotatably connected to the mounting platform 2, the threaded rod 14 is rotatably connected to the sliding plate 12, and the threaded rod 14 is threadedly connected to the first shell 11; a first transmission wheel 15, which is fixedly connected to the threaded rod 14; a second transmission wheel 16, which is fixedly connected to the rotating shaft 9, and the second transmission wheel 16 and the first transmission wheel 15 are transmitted through friction.

[0052] In the above scheme, the purpose is to provide power for the movement of the sliding plate 12. The threaded rod 14 is located at the lower side of the mounting platform 2. When the threaded rod 14 rotates, the threaded rod 14 drives the first housing 11 to move up and down through the thread, thereby changing the volume of the liquid in the first housing 11 to achieve the purpose of driving the puncture column 10 to move. The outer sides of the second transmission wheel 16 and the first transmission wheel 15 are both provided with friction materials.

[0053] Further, such as Figure 6 As shown, it also includes: a sliding member 17, the mounting platform 2 is provided with a first sliding groove 201, the sliding member 17 is slidably connected in the first sliding groove 201, and the sliding member 17 is used to limit the sliding seat 8.

[0054] In the above scheme, the sliding seat 8 is intended to be blocked to ensure the transmission between the rotating shaft 9 and the drilling pipe 5. The sliding member 17 includes a disc, a round rod and a blocking block. The first spring between the sliding seat 8 and the mounting platform 2 is initially in a compressed state. When the sliding member 17 is separated from the sliding seat 8, the sliding seat 8 moves under the action of the first spring.

[0055] Further, such as Figure 6 As shown, it also includes: a sliding column 18, the mounting platform 2 is provided with a second sliding groove 202, the sliding column 18 is slidably connected to the second sliding groove 202, a second spring is provided between the sliding column 18 and the mounting platform 2, and the first sliding groove 201 is connected to the second sliding groove 202.

[0056] In the above scheme, the purpose is to monitor whether the rock column in the sampling tube 4 reaches the specified length. The second slide groove 202 and the first slide groove 201 are filled with liquid for transmission, which can be hydraulic oil or water, etc. The second spring between the sliding column 18 and the mounting platform 2 is used to reset the sliding column 18, and the second spring can assist the sliding column 18 to push the rock column out of the sampling tube 4.

[0057] Working process: When the device is sampling, when the installation platform 2 moves downward to a certain depth, the rock column squeezes the sliding column 18, and the sliding column 18 moves upward relative to the installation platform 2. The sliding column 18 compresses the second spring adjacent to it, and presses the liquid in the second chute 202 into the first chute 201. The liquid in the first chute 201 increases and pushes the sliding member 17 to move, so that the sliding member 17 is separated from the sliding seat 8. After that, the sliding seat 8 drives the rotating shaft 9 to move under the action of the first spring adjacent to it, and the rotating shaft 9 drives the second transmission wheel 16 to move. The second transmission wheel 16 stops moving after contacting the first transmission wheel 15. At this time, the second transmission wheel 16 drives the first transmission wheel 15 to rotate, and the first transmission wheel 15 drives the threaded rod 14 to rotate. The threaded rod 14 drives the first shell 11 to move upward through the thread. The liquid in the first shell 11 is pressed into the annular shell 13 by the sliding plate 12, and then enters the installation groove 501. The liquid in the installation groove 501 increases, which pushes the puncture column 10 to move, so that the puncture column 10 is inserted into the bottom of the rock column, thereby causing a crack between the rock column and the rock mass, making it easier to remove the rock column.

[0058] After the sampling tube 4 takes out the rock column, the motor 6 drives the rotating shaft 9 to rotate in the opposite direction, and the rotating shaft 9 drives the puncture column 10 to retract, and then the motor 6 is turned off, and then the sliding seat 8 is moved to reset. When the rotating shaft 9 is reset, the drilling tube 5 or the rotating shaft 9 is rotated to make the gear ring and the gear re-engage. At this time, the rock column slides out of the sampling tube 4 under the push of the sliding column 18, and at the same time, the sliding column 18 drives the sliding member 17 to reset and re-limit the sliding seat 8.

[0059] Further, such as Figure 5 As shown, it also includes: a second shell 19, fixedly connected to the mounting platform 2, the second shell 19 is connected to the annular shell 13, the second shell 19 is slidably connected to the sliding rod 20, and a third spring is arranged between the sliding rod 20 and the second shell 19; there are a plurality of protrusions 21, all of which are fixedly connected to the first transmission wheel 15, and the protrusions 21 are used to squeeze the sliding rod 20.

[0060] In the above scheme, the puncture ability of the puncture column 10 on the rock column is improved. A roller can be set on the upper side of the sliding rod 20 to reduce the friction between the sliding rod 20 and the lower side of the first transmission wheel 15, thereby extending the service life of the device. The protrusion 21 can be set to a hemispherical shape or other shapes as long as it can squeeze the sliding rod 20 to move downward. A plurality of protrusions 21 are evenly distributed around the circumference and densely arranged to increase the frequency of the sliding rod 20 vibrating up and down, thereby increasing the frequency of the vibration of the puncture column 10.

[0061] Working process: When the puncture column 10 penetrates the rock column, the first transmission wheel 15 drives the plurality of protrusions 21 to rotate. When the protrusion 21 moves to contact the sliding rod 20, the sliding rod 20 is squeezed to move downward and the third spring adjacent to it is compressed, and the liquid in the second shell 19 is pressed into the annular shell 13, and then enters the installation groove 501, pushing the puncture column 10 to produce a small displacement. When the protrusion 21 separates from the sliding rod 20, the sliding rod 20 is quickly reset under the action of the third spring adjacent to it. At the same time, the sliding rod 20 drives the puncture column 10 to shrink slightly, so that the puncture column 10 vibrates at a high frequency during the process of penetrating the rock column, thereby improving the penetration force of the puncture column 10.

[0062] The present invention provides a thought and method. There are many methods and ways to implement the technical solution. The above is only the preferred implementation mode of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention. All components not specified in this embodiment can be implemented by existing technologies.

Claims

1. A stratified sampling device for geological exploration engineering, Its characteristics include: Frame (1); A mounting platform (2) is slidably connected to the frame (1); the frame (1) is provided with a hydraulic rod (3); a telescopic end of the hydraulic rod (3) is fixedly connected to the mounting platform (2); A sampling tube (4) is detachably mounted on the lower side of the mounting platform (2); A drilling tube (5) is sleeved on the outside of the sampling tube (4) and is rotatably connected thereto; A driving assembly, mounted on the frame (1), and used for driving the drilling pipe (5) to rotate; There are a plurality of puncture posts (10), the drilling tube (5) is provided with a plurality of mounting grooves (501), and the puncture posts (10) are slidably connected to adjacent mounting grooves (501); A motor (6) is arranged on the frame (1), and an output end of the motor (6) is connected to a telescopic rod (7) via a first universal joint; A sliding seat (8) is slidably connected to the mounting platform (2), a first spring is provided between the sliding seat (8) and the mounting platform (2), the sliding seat (8) is rotatably connected to a rotating shaft (9), the rotating shaft (9) and the telescopic rod (7) are connected via a second universal joint, and the rotating shaft (9) and the drilling tube (5) are driven via a gear ring; A first shell (11) is slidably connected to the mounting platform (2), and a sliding plate (12) is slidably connected inside the first shell (11); An annular shell (13) is rotatably connected to the outer side of the drilling tube (5), a plurality of the mounting grooves (501) are all in communication with the annular shell (13), and the annular shell (13) is in communication with the first shell body (11); A threaded rod (14) is rotatably connected to the mounting platform (2), the threaded rod (14) is rotatably connected to the sliding plate (12), and the threaded rod (14) is threadably connected to the first housing (11); A first transmission wheel (15) fixedly connected to the threaded rod (14); A second transmission wheel (16) is fixedly connected to the rotating shaft (9), and transmission is performed between the second transmission wheel (16) and the first transmission wheel (15) through friction; A sliding member (17), the mounting platform (2) being provided with a first sliding groove (201), the sliding member (17) being slidably connected in the first sliding groove (201), and the sliding member (17) being used to limit the sliding seat (8); A sliding column (18), the mounting platform (2) is provided with a second sliding groove (202), the sliding column (18) is slidably connected to the second sliding groove (202), a second spring is provided between the sliding column (18) and the mounting platform (2), and the first sliding groove (201) is connected to the second sliding groove (202); The installation groove (501), the first housing (11), the first slide groove (201) and the second slide groove (202) are all filled with liquid for transmission.

2. A stratified sampling device for geological exploration engineering according to claim 1, characterized in that: The lower side of the drilling tube (5) is a drill head, and the diameter of the inner side of the drill head of the drilling tube (5) is equal to the diameter of the inner side of the sampling tube (4).

3. A stratified sampling device for geological exploration engineering according to claim 2, characterized in that: The volume of the first shell (11) is greater than the sum of the volumes of all the installation grooves (501).

4. A stratified sampling device for geological exploration engineering according to claim 3, characterized in that: Also included are: A second shell (19) is fixedly connected to the mounting platform (2), the second shell (19) is in communication with the annular shell (13), the second shell (19) is slidably connected to a sliding rod (20), and a third spring is provided between the sliding rod (20) and the second shell (19); There are a plurality of protrusions (21), all of which are fixedly connected to the first transmission wheel (15), and the protrusions (21) are used to press the sliding rod (20).

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