Geological sampling device for mining

Abstract

The invention discloses a geological sampling device for mining, and relates to the related technical field of geological sampling devices.The geological sampling device comprises a sampling auxiliary mechanism arranged below a coring barrel, and the sampling auxiliary mechanism comprises a rotating ring rotationally connected with the coring barrel. Through the cutting supporting pieces arranged on the rotating ring at equal intervals and the blade combination on the cutting supporting pieces, a sample can be slowly cut, abraded, separated and further unfolded, so that the bottom of the sample is lifted to complete segmentation, the sample can be conveniently taken out subsequently, separation of the sample and a rock stratum can be completed according to samples of different textures, and the sampling efficiency is improved. The sample is not influenced by the properties of softness, hardness, brittleness and the like of the rock stratum, and the integral integrity of the sample is kept as far as possible, so that the integrity of the sample is ensured, subsequent detection is facilitated, and uniform sampling of samples with different textures is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field related to geological sampling devices, in particular to a geological sampling device used in mining. Background Art

[0002] Geological environmental exploration is a survey and research activity that uses various means and methods to survey and detect geology, determine the appropriate bearing layer, determine the foundation type based on the bearing capacity of the foundation of the bearing layer, and calculate the foundation parameters. It can find industrially significant deposits in mineral surveys, provide mineral reserves and geological data required for mine construction design to determine the quality and quantity of minerals, and can also conduct surveys and research on geological conditions such as rocks, strata, structures, minerals, hydrology, and landforms in a certain area. During exploration, it is generally necessary to conduct on-site sampling, and after sampling, the samples are transported back to the laboratory for experimental research. On-site sampling requires the use of sampling devices. In the process of geological sampling and drilling, the hardness of the target strata varies. In the prior art, for sampling of harder rock formations, after sampling, the sample is clamped by a self-locking coring tool, and the core barrel is lifted to pull out the core. For softer formations, the sample is clamped or twisted off by a pressurized coring tool. However, in many cases, the sample cannot be taken out relatively completely. At the same time, when taking rock (ore) cores, it is necessary to ensure that the original natural structure and structure are maintained, including the shape, size, and cementation state of mineral particles, as well as porosity, bedding, foliation, and original contact interface characteristics. These characteristics are crucial to reflecting the true nature of minerals and rocks, and help geologists accurately classify ore types and observe the structure and symbiotic relationship of primary minerals. Therefore, during field observations, effective measures should be taken to prevent artificial damage, disturbance, or inversion of rock (ore) cores to ensure that their integrity is fully preserved. The existing self-locking coring tools may be effective for samples with a harder texture, but they may cause the samples to fall when pulled off. Some samples may be harder but more brittle, and after the self-locking coring tools are locked, they may break over a large area, affecting the integrity of the entire sample and the subsequent operation judgment. Summary of the invention

[0003] The object of the present invention is to provide a geological sampling device for mining to solve the problems raised in the background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solution: comprising a sampling auxiliary mechanism disposed below the coring barrel;

[0005] The sampling auxiliary mechanism includes a rotating ring rotatably connected to the coring barrel, and cutting supports are equidistantly arranged at one end of the rotating ring away from the coring barrel. The cutting support includes a rotating rod rotatably connected to the rotating ring, and a connecting plate is rotatably provided at the other end of the rotating rod, and the connecting plate and the rotating rod are fixedly connected by the oil bag. A cutting blade is also fixedly provided on a surface of the rotating rod close to the center of the rotating ring, and a wide-slit blade is fixedly provided on the side of the cutting blade away from the connecting section of the rotating rod and the rotating ring, and the said and the said are fixedly connected by a No. 1 torsion spring, and the said and the said are fixedly connected by a No. 2 torsion spring.

[0006] Preferably, an oil chamber is provided between the rotating ring and the core barrel, fixed blocks are arranged equidistantly in the oil chamber, rotating blocks are arranged equidistantly in the oil chamber and are rotatably provided, each of the rotating blocks is fixedly connected to the corresponding rotating rod, a movable space is provided between each group of the fixed blocks and the corresponding rotating block, and an oil delivery port is provided in the movable space, the oil delivery port is fixedly connected to the rotating rod through a hose, and a pipeline is provided in the rotating rod and is fixedly connected to the corresponding oil bag.

[0007] Preferably, locking telescopic rods are equidistantly arranged and fixed outside the rotating ring, the fixed ends of the locking telescopic rods are fixedly connected to the rotating ring, each of the locking telescopic rods is fixedly connected to the oil chamber, the telescopic ends of the locking telescopic rods can cooperate with locking grooves, and the locking grooves are equidistantly arranged on the drill bit.

[0008] Preferably, a movable groove is further provided in the drill bit, a sealing strip is provided at the rotating part of the rotating ring and the coring barrel, the drill bit is fixedly connected to the drill rod, and a pipeline is provided in the coring barrel and connected to an external oil pump pipeline.

[0009] Compared with the prior art, the present invention has the following beneficial effects: the present invention arranges a sampling auxiliary mechanism at the end of the coring barrel away from the ground, and through the cutting supports equidistantly arranged on its rotating ring, and through the blade combination on the cutting supports, the sample can be slowly cut, ground and separated, and further unfolded, so as to lift the bottom of the sample to complete the division, thereby facilitating the subsequent removal of the sample, so that the separation of the sample and the rock formation can be completed for samples of different textures, and will not be affected by the soft, hard, brittle and other properties of the rock formation, and the overall integrity of the sample can be maintained as much as possible, thereby ensuring the integrity of the sample, facilitating subsequent testing, and facilitating unified sampling of samples of different textures. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0011] Figure 2It is a schematic diagram of the first partial structure of an embodiment of the present invention;

[0012] Figure 3 It is a schematic diagram of a second partial structure of an embodiment of the present invention;

[0013] Figure 4 It is a schematic diagram of the third partial structure of an embodiment of the present invention;

[0014] Figure 5 It is a schematic diagram of a fourth partial structure of an embodiment of the present invention;

[0015] Figure 6 For the embodiment of the present invention Figure 2 The enlarged schematic diagram at A in the middle;

[0016] Figure 7 For the embodiment of the present invention Figure 3 The enlarged schematic diagram of point B in the middle;

[0017] Figure 8 For the embodiment of the present invention Figure 4 The enlarged schematic diagram at C in the middle;

[0018] Fig. 9 For the embodiment of the present invention Figure 5 The enlarged schematic diagram at D in the middle;

[0019] In the figure: 11, drill rod; 12, drill bit; 13, core barrel; 14, rotating ring; 15, locking telescopic rod; 16, cutting support; 17, movable groove; 18, locking groove; 19, rotating rod; 20, connecting plate; 21, oil bag; 22, cutting blade; 23, wide-slit blade; 24, oil chamber; 25, fixed block; 26, rotating block; 27, movable space; 28, oil delivery port; 29, No. 1 torsion spring; 30, No. 2 torsion spring; 61, sampling auxiliary mechanism. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Combined with Figure 1-Figure 9 , the geological sampling device for mining comprises a sampling auxiliary mechanism 61 arranged below the coring barrel 13;

[0022] The sampling auxiliary mechanism 61 includes a rotating ring 14 rotatably connected to the core barrel 13, and a cutting support 16 is arranged equidistantly at one end of the rotating ring 14 away from the core barrel 13. The cutting support 16 includes a rotating rod 19 rotatably connected to the rotating ring 14, and a connecting plate 20 is rotatably provided at the other end of the rotating rod 19, and the connecting plate 20 and the rotating rod 19 are fixedly connected by the oil bag 21. A cutting blade 22 is also fixedly provided on a side of the rotating rod 19 close to the center of the rotating ring 14. A wide-slit blade 23 is fixedly provided on one side of the cutting blade 22 away from the connecting section of the rotating rod 19 and the rotating ring 14. The cutting blade 22 is used to cut samples. The wide-slit blade 23 is used to enlarge the gap cut by the cutting blade 22 to facilitate subsequent further cutting by the cutting blade 22. The 19 and 20 are fixedly connected by a No. 1 torsion spring 29, and the 19 and 14 are fixedly connected by a No. 2 torsion spring 30. The torsion force of the No. 1 torsion spring 29 is greater than that of the No. 2 torsion spring 30.

[0023] Advantageously, an oil chamber 24 is provided between the rotating ring 14 and the core barrel 13, and fixed blocks 25 are arranged and fixedly provided in the oil chamber 24 at equal intervals, and rotating blocks 26 are arranged and rotatably provided in the oil chamber 24 at equal intervals, and each rotating block 26 is fixedly connected to the corresponding rotating rod 19, and an active space 27 is provided between each group of the fixed blocks 25 and the corresponding rotating blocks 26, and the active space 27 is not filled with oil, and the oil chamber 24 is filled with oil, and an oil delivery port 28 is provided in the active space 27, and the oil delivery port 28 is fixedly connected to the rotating rod 19 through a hose, and a pipeline is provided in the rotating rod 19 and fixedly connected to the corresponding oil bag 21.

[0024] Advantageously, locking telescopic rods 15 are evenly arranged and fixed outside the rotating ring 14, and the fixed ends of the locking telescopic rods 15 are fixedly connected to the rotating ring 14. Each of the locking telescopic rods 15 is fixedly connected to the oil chamber 24, and the telescopic ends of the locking telescopic rods 15 can cooperate with locking grooves 18, and the locking grooves 18 are evenly arranged on the drill bit 12.

[0025] Advantageously, a movable groove 17 is further provided in the drill bit 12, and the movable groove 17 is used to facilitate the movement of the cutting support 16. A sealing strip is provided at the rotating part of the rotating ring 14 and the core barrel 13. The drill bit 12 is fixedly connected to the drill rod 11. A pipeline is provided in the core barrel 13 and is connected to the external oil pump pipeline.

[0026] Method of use of the present invention:

[0027] In the initial state:

[0028] The cutting support 16 does not enter the center range of the rotating ring 14, the locking telescopic rod 15 is in a fully retracted state, the oil bag 21 is not filled with oil, the activity space 27 is not filled with oil, the protruding part of the rotating block 26 does not completely enter the activity space 27, and the oil chamber 24 is filled with oil.

[0029] When the present invention is needed, the user needs to drill the drill rod 11 and the drill bit 12 into the formation until the depth required for sampling is reached, take out the components in the drill rod 11 and put them into the core barrel 13, and then the drill rod 11 continues to rotate under the drive of the external components, and a circular hole will be left in the drill rod 11 and the drill bit 12 from which the original components have been taken out, so that as the drill rod 11 and the drill bit 12 continue to rotate downward, the sample will be drilled, and as the drill rod 11 and the drill bit 12 continue to drill, the sample will enter the core barrel 13, until the required length is obtained, the drill rod 11 and the drill bit 12 stop drilling downward, at which time the sampled sample will be in the core barrel 13 and maintain a certain length, After the drilling stops, the drill rod 11 and the drill bit 12 no longer move downward, but still keep rotating. At this time, the external oil pump will be started, and the oil will be input into the oil chamber 24 through the pipeline connected to the external oil pump in the core barrel 13. After the additional oil enters the oil chamber 24, the oil will enter each of the locking telescopic rods 15. After the oil enters the locking telescopic rods 15, the locking telescopic rods 15 will begin to extend. As the locking telescopic rods 15 extend, the moving end of the locking telescopic rods 15 will contact the inner wall of the drill bit 12. As the drill bit 12 continues to rotate, the telescopic end of the locking telescopic rod 15 will be embedded in the locking groove 18, so that the locking telescopic rods 15 and the locking telescopic rods 15 are locked. The locking groove 18 cooperates, and the locking telescopic rod 15 drives the rotating ring 14 to rotate. At the same time, with the input of oil, the oil in the oil chamber 24 will push open the rotating block 26, so that the rotating block 26 drives the cutting support 16 to rotate. As the cutting support 16 rotates, the cutting blade 22 on the cutting support 16 will first contact the sample. As the rotating ring 14 rotates continuously driven by the drill bit 12, the cutting blade 22 will cut a slit on the sample, and the wide-slit blade 23 will further expand the width of the slit along the slit, making it convenient for the rotating rod 19 to continue to rotate, and the cutting blade 22 will further close to the sample to continue cutting, and so on. After waiting for a certain period of time, , the sample is completely separated from the rock formation, and the rotating block 26 is completely pushed open. At this time, the oil delivery port 28 is at the other end of the rotating block 26, and the oil delivery port 28 is in a connected state with the oil chamber 24. The oil in the oil chamber 24 will enter the oil delivery port 28, so that the oil entering the oil bag 21 begins to expand, until the oil bag 21 is fully expanded, the cutting support 16 will expand into a fan shape, thereby blocking the bottom end of the rotating ring 14 as much as possible, so as to support the sample. At this time, the user takes up the coring barrel 13 and pumps out excess oil. When the excess oil in 24 starts to be pumped out by an external oil pump, since the torsion of the No. 1 torsion spring 29 is greater than that of the No. 2 torsion spring 30,The No. 1 torsion spring 29 will drive the connecting plate 20 to rotate, thereby squeezing the oil bag 21 to reset through the connecting plate 20, thereby squeezing out the excess oil in the oil bag 21, and the rotating block 26 does not rotate. As the oil pump continues to pump, the rotating block 26 will reset under the action of the No. 2 torsion spring 30, thereby resetting the cutting support assembly 16, thereby obtaining a relatively complete sample in this way, successively improving the sampling rate, ensuring the integrity of the sample and facilitating subsequent testing.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A geological sampling device for mining, comprising a sampling auxiliary mechanism (61) arranged below a coring barrel (13), characterized in that: The sampling auxiliary mechanism (61) comprises a rotating ring (14) rotatably connected to the coring barrel (13); cutting supports (16) are arranged equidistantly at one end of the rotating ring (14) away from the coring barrel (13); the cutting supports (16) comprise a rotating rod (19) rotatably connected to the rotating ring (14); a connecting plate (20) is rotatably provided at the other end of the rotating rod (19); and a connecting plate (20) is provided between the connecting plate (20) and the rotating rod (19) via the connecting plate (20). The oil bag (21) is fixedly connected, a cutting blade (22) is fixedly provided on a side of the rotating rod (19) close to the center of the rotating ring (14), a wide-slit blade (23) is fixedly provided on a side of the cutting blade (22) away from the connecting section of the rotating rod (19) and the rotating ring (14), the (19) and the (20) are fixedly connected via a No. 1 torsion spring (29), and the (19) and the (14) are fixedly connected via a No. 2 torsion spring (30).

2. A geological sampling device for mining according to claim 1, characterized in that: An oil chamber (24) is provided between the rotating ring (14) and the core removal barrel (13), fixed blocks (25) are arranged and fixed at equal intervals in the oil chamber (24), and rotating blocks (26) are arranged and rotatably provided in the oil chamber (24).

3. A geological sampling device for mining according to claim 2, characterized in that: Each of the rotating blocks (26) is fixedly connected to the corresponding rotating rod (19), a movable space (27) is provided between each group of the fixed blocks (25) and the corresponding rotating block (26), and an oil delivery port (28) is provided in the movable space (27).

4. A geological sampling device for mining according to claim 3, characterized in that: The oil delivery port (28) is fixedly connected to the rotating rod (19) via a hose, and a pipeline is provided inside the rotating rod (19) and is fixedly connected to the corresponding oil bag (21).

5. A geological sampling device for mining according to claim 2, characterized in that: Locking telescopic rods (15) are evenly arranged and fixed outside the rotating ring (14), and the fixed ends of the locking telescopic rods (15) are fixedly connected to the rotating ring (14), and each of the locking telescopic rods (15) is fixedly connected to the oil chamber (24).

6. A geological sampling device for mining according to claim 5, characterized in that: The telescopic end of the locking telescopic rod (15) can cooperate with a locking groove (18), and the locking grooves (18) are arranged at equal intervals on the drill bit (12).

7. A geological sampling device for mining according to claim 6, characterized in that: A movable groove (17) is also provided in the drill bit (12), and a sealing strip is provided at the rotating position of the rotating ring (14) and the coring barrel (13).

8. A geological sampling device for mining according to claim 7, characterized in that: The drill bit (12) is fixedly connected to the drill rod (11); a pipeline is arranged inside the core barrel (13) and is connected to an external oil pump pipeline.

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