Intelligent drilling core directional sampling device for solid mineral exploration

Abstract

The application discloses a kind of intelligent drilling core directional sampling devices for solid mineral exploration, it is related to core directional sampling technical field, including tube body, the both ends of the tube body are respectively threadedly connected with round shell and drill bit for drilling;The circumferential outer wall of the tube body is fixedly connected with the knocking assembly for facilitating the quick discharge of core body, the knocking assembly is distributed on the circumferential outer wall of the tube body with equal interval, in the present application, the discharge system of "efficient vibration, buffering protection" is formed by the interlinking cooperation between knocking assembly and flow guide assembly, in the knocking assembly, the combination of round plate and divergent spoke can uniformly transmit knocking force to knocking platform, cooperate with the elastic reset action of spring in mounting groove, realize the effect of "single-point knocking, all-around vibration diffusion", can fully break the negative pressure suction force between core body and tube inner wall, avoid the core jam caused by traditional local knocking.

Description

Technical Field

[0001] This invention relates to the field of core directional sampling technology, and more specifically, to an intelligent drilling core directional sampling device for solid mineral exploration. Background Technology

[0002] Core sampling is a crucial method for obtaining underground geological information in fields such as geological exploration, mineral resource development, and engineering geological investigation. Analysis of core samples reveals key information such as the lithology, structure, and texture of underground rock strata, as well as the distribution of mineral resources, providing a basis for subsequent geological research and engineering construction.

[0003] Currently, existing sampling devices, after core sampling, encounter a negative pressure suction between the core and the inner wall of the sampling device during unloading, preventing the core from being discharged. Workers often use water pressure at the end of the device combined with tapping the outer wall to generate vibration and expel the core quickly. However, this method has several problems: firstly, the striking force is difficult to control; excessive local force can deform or damage the outer wall, shortening the device's lifespan; and secondly, the limited local vibration range cannot effectively break the negative pressure suction between the core and the inner wall, leading to core jamming and low unloading efficiency. Thirdly, concentrated local vibration can be transmitted to the core, causing single-point fractures, compromising its integrity and affecting the accuracy of subsequent geological analysis. Therefore, there is an urgent need for an intelligent drilling core directional sampling device for solid mineral exploration to solve these problems. Summary of the Invention

[0004] In response to the problems in related technologies, this invention proposes an intelligent drilling core directional sampling device for solid mineral exploration to overcome the aforementioned technical problems existing in the existing related technologies.

[0005] The technical solution of this invention is implemented as follows:

[0006] A smart drilling core directional sampling device for solid mineral exploration includes a tube body, with a round shell and a drill bit for drilling respectively threaded to both ends of the tube body;

[0007] The outer circumferential wall of the tube is fixedly connected with a striking component that facilitates rapid unloading of the core body. The striking components are evenly distributed on the outer circumferential wall of the tube.

[0008] A flow guiding component is fixedly connected to the outer circumference of the pipe body to facilitate rapid and stable drilling of the pipe body, and the flow guiding component is located below the striking component.

[0009] Preferably, the knocking assembly comprises a knocking platform arranged on the circumferential outer wall of the pipe body, the circumferential outer wall of the pipe body is provided with a mounting groove, one side of the knocking platform is located inside the mounting groove, and the upper and lower ends of the knocking platform are fixedly connected with first ring plates.

[0010] Preferably, the inside of the mounting groove is provided with a spring, and one side of the outer wall of the knocking platform is in contact with the outer wall of the spring.

[0011] Preferably, the cross section of the knocking platform is a right trapezoid, and one side of the outer wall of the knocking platform located inside the mounting groove is fixedly connected with a second ring plate for supporting and limiting the spring.

[0012] Preferably, one side of the outer wall of the knocking platform is fixedly connected with an elastic ring plate, the cross section of the elastic ring plate is arc-shaped, the elastic ring plate is located above the second ring plate, and an elastic deformation area is formed between the elastic ring plate and the mounting groove.

[0013] Preferably, the circumferential outer wall of the knocking assembly is fixedly connected with circular plates and spokes distributed in a ring shape at equal distances, the spokes are fixedly connected with the circular plates, and the spokes are distributed in a diverging manner along the center of the circular plates.

[0014] Preferably, the inside of the circular shell is fixedly connected with a control panel, the inside of the control panel is provided with an inclination sensor for detecting a drilling angle and a GNSS positioning and orientation module for determining a drilling area, and the circumferential outer wall of the circular shell is provided with a display screen for displaying inclination angle information and drilling area information.

[0015] Preferably, the flow guide assembly comprises flow guide vanes arranged in a spiral manner on the circumferential outer wall of the pipe body, and the cross section of the flow guide vanes is isosceles trapezoidal.

[0016] Preferably, one side of the flow guide vane is provided with a groove, and the cross section of the groove is U-shaped.

[0017] Preferably, the pitch of the flow guide vane is small at both ends and large in the middle.

[0018] The beneficial effects of the present application are as follows:

[0019] The intelligent drilling core directional sampling device for solid mineral exploration provided by the application has a flow guide assembly on the outer wall of the pipe body, which adopts a "small at both ends and large in the middle" pitch layout for the spiral flow guide blades, cooperates with the isosceles trapezoidal cross section, and can form an efficient rock debris dredging channel during drilling, that is, the small pitch sections at both ends can enhance the radial support force of the pipe body, avoid the pipe body from shaking and deviating in a high-pressure drilling environment, ensure the stability of the drilling trajectory, and expand the flow space of the rock debris and the mud in the middle large pitch section, thereby reducing the frictional resistance between the pipe body and the rock stratum, and simultaneously, the U-shaped groove opened on one side of the blade further optimizes the fluid mechanics characteristics, which can not only avoid the drilling jam caused by the accumulation of rock debris in the blade gap, but also accelerate the discharge of the rock debris through the flow guide effect of the inner wall of the groove, and the cooperative action of these designs can keep the pipe body in a stable and efficient drilling state at all times, ensure that the core body enters the pipe body smoothly and completely, significantly shorten the time consumption of single sampling, and improve the overall efficiency of the exploration operation.

[0020] The intelligent drilling core directional sampling device for solid mineral exploration provided by the application has a flow guide assembly on the outer wall of the pipe body, which adopts a "small at both ends and large in the middle" pitch layout for the spiral flow guide blades, cooperates with the isosceles trapezoidal cross section, and can form an efficient rock debris dredging channel during drilling, that is, the small pitch sections at both ends can enhance the radial support force of the pipe body, avoid the pipe body from shaking and deviating in a high-pressure drilling environment, ensure the stability of the drilling trajectory, and expand the flow space of the rock debris and the mud in the middle large pitch section, thereby reducing the frictional resistance between the pipe body and the rock stratum, and simultaneously, the U-shaped groove opened on one side of the blade further optimizes the fluid mechanics characteristics, which can not only avoid the drilling jam caused by the accumulation of rock debris in the blade gap, but also accelerate the discharge of the rock debris through the flow guide effect of the inner wall of the groove, and the cooperative action of these designs can keep the pipe body in a stable and efficient drilling state at all times, ensure that the core body enters the pipe body smoothly and completely, significantly shorten the time consumption of single sampling, and improve the overall efficiency of the exploration operation.

[0021] This invention provides an intelligent drilling core directional sampling device for solid mineral exploration. By integrating a control panel inside a cylindrical shell, it deeply integrates a GNSS positioning and orientation module with an inclination sensor. This allows for real-time acquisition and simultaneous display of the precise location and drilling angle data of the drilling area on a screen. Based on this dynamic data, operators can adjust the drilling direction in a timely manner. This solves the problems of traditional sampling devices lacking precise positioning and angle monitoring functions, which lead to sampling areas deviating from the target exploration layer and core strikes not matching the actual rock structure. It not only ensures that the obtained core samples accurately reflect the geological characteristics of the target area, providing precise basis for mineral resource distribution analysis and rock structure research, but also reduces human judgment errors through intelligent data visualization, improving the technological level and data reliability of exploration operations. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 For the present invention Figure 1 A magnified structural diagram of point A in the middle.

[0025] Figure 3 This is a schematic diagram of the overall structure of the circular shell and drill bit after disassembly according to the present invention.

[0026] Figure 4 This is a front view structural diagram of the present invention.

[0027] Figure 5 This is a partial half-sectional view of the tube body of the present invention.

[0028] Figure 6 For the present invention Figure 5 A magnified structural diagram at point B in the middle.

[0029] Figure 7 This is a partially enlarged structural diagram of the striking component of the present invention.

[0030] Figure 8 This is a schematic diagram of the process of the core body being discharged from the tube according to the present invention.

[0031] In the picture:

[0032] 1, pipe body; 2, round shell; 3, knocking assembly; 301, knocking table; 302, round plate; 303, spoke; 304, first ring plate; 305, elastic ring plate; 306, second ring plate; 307, annular groove; 308, mounting groove; 309, spring; 4, flow guide assembly; 401, flow guide blade; 402, groove; 5, drill bit; 6, control panel; 7, display screen; 8, core body. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art belong to the scope of protection of the present application.

[0034] Please refer to Figures 1-8 An intelligent drilling core directional sampling device for solid mineral exploration, comprising a pipe body 1, a round shell 2 and a drill bit 5 for drilling are threadedly connected to both ends of the pipe body 1;

[0035] The circumferential outer wall of the pipe body 1 is fixedly connected with a knocking assembly 3 for facilitating quick unloading of the core body 8, and the knocking assembly 3 is distributed at equal intervals on the circumferential outer wall of the pipe body 1;

[0036] The circumferential outer wall of the pipe body 1 is fixedly connected with a flow guide assembly 4 for facilitating quick and stable drilling of the pipe body 1, and the flow guide assembly 4 is located below the knocking assembly 3, which provides stable guarantee for the drilling process, and through optimizing the interaction between the pipe body 1 and the rock stratum, it can quickly dredge the cuttings and mud during drilling, reduce the drilling resistance of the pipe body 1, and at the same time, enhance the support stability of the pipe body 1 in the complex underground environment, prevent the pipe body 1 from shaking and deviating, ensure the accuracy of the drilling trajectory, ensure the smooth entry of the core body 8 into the pipe body 1, avoid sampling failure or core damage caused by unstable drilling, and balance the drilling efficiency and sampling quality.

[0037] Further, the knocking assembly 3 comprises a knocking table 301 arranged on the circumferential outer wall of the pipe body 1, the circumferential outer wall of the pipe body 1 is provided with a mounting groove 308, one side of the knocking table 301 is located inside the mounting groove 308, the upper and lower ends of the knocking table 301 are fixedly connected with first ring plates 304, the inner walls of the upper and lower sides of the mounting groove 308 are provided with annular grooves 307, the first ring plates 304 are slidably connected with the annular grooves 307, the inside of the mounting groove 308 is provided with a spring 309, the outer wall of one side of the knocking table 301 is in contact with the outer wall of the spring 309, the cross section of the knocking table 301 is a right trapezoid, the outer wall of one side of the knocking table 301 located inside the mounting groove 308 is fixedly connected with a second ring plate 306 for supporting and limiting the spring 309, when the knocking table 301 is subjected to a vibration force, it will move towards the inside of the mounting groove 308 of the pipe body 1, at this time, the spring 309 inside the mounting groove 308 will be elastically deformed under the extrusion of the knocking table 301, and the first ring plates 304 at the upper and lower ends of the knocking table 301 will slide along the annular grooves 307 on the inner walls of the upper and lower sides of the mounting groove 308, so as to ensure that the knocking table 301 moves stably without deviation, after one round of knocking is completed, the deformed spring 309 will quickly reset, thereby driving the knocking table 301 to impact the pipe body 1 in the opposite direction, so as to realize the effect of "single-point knocking and all-around vibration diffusion" of the knocking table 301, which can ensure that the pipe body 1 is uniformly stressed and the vibration coverage is comprehensive, and can effectively break the negative pressure suction force between the core body 8 and the inner wall of the pipe body 1, so as to avoid the problems that in the traditional unloading mode, only partial vibration stress is caused, which leads to difficult elimination of negative pressure and causes the core body 8 to be stuck and unable to be discharged, and also easily causes the core body 8 to be broken due to single-point stress.

[0038] Further, the outer wall of one side of the knocking table 301 is fixedly connected with an elastic annular plate 305, the cross section of the elastic annular plate 305 is arc-shaped, the elastic annular plate 305 is located above the second ring plate 306, and an elastic deformation area is formed between the elastic annular plate 305 and the mounting groove 308, the arc-shaped elastic annular plate 305 on one side of the knocking table 301 will also be elastically deformed during the impact process, so as to further amplify the vibration effect caused by the impact, effectively break the negative pressure suction force between the core body 8 and the inner wall of the pipe body 1, and improve the unloading rate of the core body 8.

[0039] Further, the circumferential outer wall of the knocking assembly 3 is fixedly connected with circular plates 302 and spokes 303 which are arranged in a ring shape at equal distances, the spokes 303 are fixedly connected with the circular plates 302, and the spokes 303 are distributed in a diverging manner along the center of the circular plates 302, the knocking hammer is directly applied to the circular plates 302 in the knocking assembly 3, and since the spokes 303 are distributed in a diverging manner along the center of the circular plates 302, the vibration force generated during the impact can be more uniformly diffused to the entire knocking table 301.

[0040] Further, the inside of the circular shell 2 is fixedly connected with a control panel 6, the inside of the control panel 6 is provided with an inclination sensor for detecting the drilling angle and a GNSS positioning orientation module for determining the drilling area, the circumferential outer wall of the circular shell 2 is provided with a display screen 7 for displaying the inclination angle information and the drilling area information, the drilling area is accurately determined through the GNSS positioning orientation module in the control panel 6 inside the circular shell 2, and the inclination sensor in the control panel 6 detects the drilling angle in real time, and the related positioning information and angle data are synchronously displayed on the display screen 7 on the circumferential outer wall of the circular shell 2, so that the drilling direction can be adjusted according to the real-time data of the display screen 7, the problem of insufficient sample representativeness caused by fuzzy positioning and angle deviation in traditional sampling is avoided, and the directional accuracy and intelligent level of drilling sampling are significantly improved.

[0041] Further, the pitch of the guide vane 401 is small at both ends and large in the middle, so that the density of the guide vane 401 near the knocking assembly 3 is larger, and the vibration generated by the knocking assembly 3 can be fully absorbed, so that the absorbed vibration force fully acts on the core body 8, and the unloading efficiency is accelerated.

[0042] Further, the guide assembly 4 includes guide vanes 401 spirally distributed on the circumferential outer wall of the pipe body 1, the cross section of the guide vane 401 is isosceles trapezoidal, and a groove 402 is formed in one side of the guide vane 401, and the cross section of the groove 402 is U-shaped. The guide vanes 401 spirally distributed have a pitch design of small at both ends and large in the middle, and cooperate with the isosceles trapezoidal cross section, so that the generated cuttings and mud can be quickly dredged during drilling, the frictional resistance between the pipe body 1 and the rock stratum is reduced, the support force on the pipe body 1 is enhanced through the small pitch segments at both ends, the pipe body 1 is prevented from shaking and deviating during drilling, the U-shaped groove 402 formed in one side of the guide vane 401 further enlarges the flow space of the cuttings and mud, the drilling progress is prevented from being affected by the cuttings blockage, the pipe body 1 can quickly and stably complete the drilling, and the core body 8 is smoothly guided into the inside of the pipe body 1 to realize sampling.

[0043] As described above, when the device is used, the staff first assembles the device, the pipe body 1 is threadedly connected with the circular shell 2 and the drill bit 5 at both ends, the drilling area is accurately determined through the GNSS positioning orientation module in the control panel 6 inside the circular shell 2, the drilling angle is detected in real time by the inclination sensor in the control panel 6, the related positioning information and angle data are synchronously displayed on the display screen 7 on the circumferential outer wall of the circular shell 2, the drilling direction can be adjusted according to the real-time data of the display screen 7, the problem of insufficient sample representativeness caused by fuzzy positioning and angle deviation in traditional sampling is avoided, and the directional accuracy and intelligent level of drilling sampling are significantly improved.

[0044] When the staff starts drilling, the drill bit 5 is rotated and drilled by the pipe body 1, and the guide assembly 4 below the percussion assembly 3 on the circumferential outer wall of the pipe body 1 begins to play a role. The spiral guide vanes 401 are designed with a large pitch in the middle and a small pitch at both ends, matched with an isosceles trapezoidal cross section, which can quickly dredge the generated rock debris and mud during drilling, reduce the frictional resistance between the pipe body 1 and the rock stratum, and enhance the support strength of the pipe body 1 through the small pitch section at both ends, preventing the pipe body 1 from shaking and deviating during drilling. At the same time, the U-shaped groove 402 opened on one side of the guide vane 401 further expands the flow space of the rock debris and mud, avoids the influence of drilling progress caused by rock debris blockage, ensures that the pipe body 1 can quickly and stably complete drilling, and ensures that the core body 8 smoothly enters the inside of the pipe body 1 to realize sampling;

[0045] When the sampling is completed and the material needs to be unloaded, the staff directly acts on the circular plate 302 in the percussion assembly 3 by the percussion hammer. Since the spokes 303 are distributed along the center of the circular plate 302 to the four directions, the vibration force generated during percussion can be more evenly spread to the four directions of the percussion platform 301. When the percussion platform 301 is subjected to the vibration force, it will move to the inside of the mounting groove 308 of the pipe body 1. At this time, the spring 309 inside the mounting groove 308 is elastically deformed under the extrusion of the percussion platform 301, and the first ring plate 304 at both ends of the percussion platform 301 slides along the annular groove 307 on the inner wall of the mounting groove 308, ensuring that the percussion platform 301 moves stably without deviation. When a round of percussion is completed, the deformed spring 309 will quickly reset, thereby driving the percussion platform 301 to impact the pipe body 1 in the opposite direction, realizing the effect of "single-point percussion and full-range vibration diffusion" of the percussion platform 301. This effect can ensure that the pipe body 1 is uniformly stressed and the vibration coverage is comprehensive, which can effectively break the negative pressure suction force between the core body 8 and the inner wall of the pipe body 1, avoid the problems that in the traditional unloading method, the negative pressure is difficult to eliminate and the core body 8 is stuck and cannot be discharged due to only partial vibration stress, and the core body 8 is prone to single-point stress fracture. At the same time, the arc-shaped elastic ring plate 305 on one side of the percussion platform 301 will also be elastically deformed during the impact process, further amplifying the vibration effect generated by the impact, effectively breaking the negative pressure suction force between the core body 8 and the inner wall of the pipe body 1, and improving the unloading rate of the core body 8;

[0046] In the process that the staff exerts the knocking force on the knocking table 301, the radial vibration force can be dispersed along the waist edge to the blade root (the connecting end of the pipe body 1) through the two waist edges of the inverted trapezoidal guide vane 401, so as to avoid the force concentration in a single area, and the U-shaped groove 402 at the top of the section can guide the axial vibration to the inner wall of the groove 402, the inside of the U-shaped groove 402 forms a “closed buffer space”, when the vibration force is transmitted to the groove 402, the inner wall of the groove 402 will produce a small elastic deformation, and the vibration energy is converted into a small amount of deformation energy, instead of being directly transmitted to the pipe body 1, so as to make the vibration force transmission more uniform, which not only guarantees the structural stability of the pipe body 1, but also avoids the fracture of the core body 8 due to the vibration impact, ensures the efficient unloading process and the integrity of the core sample, and the pitch of the guide vane 401 is small at both ends and large in the middle, so that the density of the guide vane 401 near the knocking assembly 3 is larger, so as to fully absorb the vibration generated by the knocking assembly 3, so that the absorbed vibration force fully acts on the core body 8, and the unloading efficiency is accelerated.

[0047] The above only describes the preferred embodiments of the present application and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An intelligent drilling core directional sampling device for solid mineral exploration, comprising a tube body (1), characterized in that, The two ends of the tube (1) are respectively threaded with a round shell (2) and a drill bit (5) for drilling. The outer circumferential wall of the tube (1) is fixedly connected to a striking component (3) that facilitates rapid unloading of the core body (8). The striking components (3) are evenly distributed on the outer circumferential wall of the tube (1). A flow guiding component (4) is fixedly connected to the outer circumference of the pipe body (1) to facilitate rapid and stable drilling of the pipe body (1). The flow guiding component (4) is located below the striking component (3). The striking component (3) includes a striking platform (301) disposed on the outer circumference of the pipe body (1). An installation groove (308) is provided on the outer circumference of the pipe body (1). One side of the striking platform (301) is located inside the installation groove (308). A first ring plate (304) is fixedly connected to both the upper and lower ends of the striking platform (301). Annular grooves (307) are provided on the inner walls of both the upper and lower sides of the installation groove (308). The first ring plate (304) is slidably connected to the annular groove (307). A spring (309) is provided inside the mounting groove (308). One side of the outer wall of the striking platform (301) is in contact with the outer wall of the spring (309). The flow guiding assembly (4) includes flow guiding blades (401) that are spirally distributed on the outer circumference of the tube body (1). The cross-section of the flow guiding blade (401) is an isosceles trapezoid. A groove (402) is provided on one side of the flow guiding blade (401). The cross-section of the groove (402) is U-shaped. The pitch of the flow guiding blade (401) is small at both ends and large in the middle.

2. The intelligent drilling core directional sampling device for solid mineral exploration according to claim 1, characterized in that, The cross-section of the striking platform (301) is a right trapezoid, and a second ring plate (306) for supporting and limiting the spring (309) is fixedly connected to the outer wall of the striking platform (301) located inside the mounting groove (308).

3. The intelligent drilling core directional sampling device for solid mineral exploration according to claim 2, characterized in that, An elastic annular plate (305) is fixedly connected to one side of the outer wall of the striking platform (301). The cross-section of the elastic annular plate (305) is arc-shaped. The elastic annular plate (305) is located above the second annular plate (306). An elastic deformation area is formed between the elastic annular plate (305) and the mounting groove (308).

4. The intelligent drilling core directional sampling device for solid mineral exploration according to claim 3, characterized in that, The striking component (3) has a circular plate (302) and spokes (303) that are evenly distributed in a ring on its outer circumference. The spokes (303) are fixedly connected to the circular plate (302) and are distributed in a radiating pattern from the center of the circular plate (302).

5. The intelligent drilling core directional sampling device for solid mineral exploration according to claim 4, characterized in that, The control panel (6) is fixedly connected inside the circular shell (2). The control panel (6) is equipped with an inclination sensor for detecting the drilling angle and a GNSS positioning and orientation module for determining the drilling area. The outer circumference of the circular shell (2) is equipped with a display screen (7) for displaying the inclination angle information and the drilling area information.

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