Coal mine sampling device

Abstract

The utility model discloses a coal mine sampling device, which relates to the technical field of coal mine sampling, and comprises a connecting plate body, a cylinder and a rotating member, the bottom end of the rotating member is fixedly provided with a drill bit, the circumference of the surface of the drill bit is equidistantly provided with round holes, and the upper end of the connecting plate body is fixedly provided with a driving device for driving the rotating member to rotate. The drill bit adopts the conical design, so that when the drill bit is in contact with a coal mine, applied force can be concentrated on a smaller area, larger pressure is generated, resistance needing to be overcome during drilling is remarkably reduced, the drill bit can quickly and smoothly drill into the coal mine, the circular holes are formed in the circumference of the surface of the drill bit at equal intervals, and the drill bit is convenient to use. The coal mine particle sampling device is simple in structure and uniform and reasonable in distribution, ensures that coal mine particles can uniformly enter the rotating part from all directions in the drilling process of a drill bit, avoids sample deviation caused by non-uniform sampling, ensures that a sampled sample can accurately reflect the overall characteristics of a coal mine, and provides a reliable basis for subsequent analysis and detection.

Description

Technical Field

[0001] This utility model relates to the field of coal mine sampling technology, and in particular to a coal mine sampling device. Background Technology

[0002] Accurate coal quality testing is crucial in all stages of coal mining, processing, and sales. Coal sampling, as the first step in quality testing, directly affects the reliability of test results and the progress of subsequent work due to the representativeness and efficiency of the samples obtained.

[0003] In practical applications, coal mine sampling devices typically require the following technologies:

[0004] 1. High-efficiency drilling: It can quickly and smoothly drill into coal mines, reducing drilling time and manpower consumption, and improving sampling efficiency;

[0005] 2. Convenient sample retrieval: After sampling, the sample can be retrieved easily and quickly while ensuring the integrity of the sample.

[0006] Currently, traditional coal mine sampling devices are complex to use in practice, requiring the use of various tools or cumbersome disassembly operations, which not only wastes time but also easily causes sample contamination or loss. Utility Model Content

[0007] Technical problems to be solved

[0008] In view of the shortcomings of the existing technology, this utility model provides a coal mine sampling device, which solves the technical problems of traditional coal mine sampling devices in actual use, which are complicated in sampling methods, require the use of multiple tools or cumbersome disassembly operations, which not only waste time, but also easily cause sample contamination or loss.

[0009] Technical solution

[0010] To achieve the above objectives, this utility model provides the following technical solution:

[0011] A coal mine sampling device includes a connecting plate, a cylinder, and a rotating component. A drill bit is fixedly installed at the bottom end of the rotating component, and circular holes are equidistantly opened on the surface of the drill bit. A driving device for driving the rotating component to rotate is fixedly installed at the upper end of the connecting plate. A cylinder is fixedly installed at the top end of the rotating component, and the interior of the cylinder communicates with the interior of the rotating component. A material sampling port is opened on the surface of the cylinder.

[0012] Preferably, two handles are fixedly installed on the upper end of the connecting plate, wherein both handles are U-shaped.

[0013] Preferably, the rotating component is located below the connecting plate, and the output shaft of the driving device is fixedly connected to the connecting component.

[0014] Preferably, a connecting flange is fixedly installed at the top of the cylinder, and a screw is screwed into the connecting flange, wherein the connecting flange is threaded to the connecting piece by the screw.

[0015] Preferably, the rotating component is a circular tube design.

[0016] Preferably, the drill bit has a tapered design.

[0017] Beneficial effects

[0018] 1. The drill bit adopts a conical design. This shape allows the drill bit to concentrate the applied force on a small area when it contacts the coal mine, thereby generating greater pressure and significantly reducing the resistance to be overcome during drilling. This enables it to drill into the coal mine quickly and smoothly. The equally spaced circular holes on the circumference of the drill bit surface are evenly and rationally distributed, ensuring that coal particles can enter the rotating part evenly from all directions during the drilling process. This avoids sample deviation caused by uneven sampling and ensures that the sample can accurately reflect the overall characteristics of the coal mine, providing a reliable basis for subsequent analysis and testing. The drive device is tightly fixed to the connecting flange at the top of the cylinder through the connecting parts. This connection method allows the drive device to efficiently transmit power to the cylinder, thereby driving the rotating part and the drill bit to rotate together.

[0019] Second, the sampling port on the surface of the cylinder facilitates sample retrieval. After sampling, operators do not need additional complex tools or cumbersome disassembly steps; they can simply remove the sampling device from the coal mine and collect the coal sample stored inside the cylinder directly through the sampling port. This design not only saves sample collection time but also reduces potential contamination or loss of samples during transfer, ensuring the integrity and originality of the samples, which is beneficial for subsequent accurate analysis and testing. Attached Figure Description

[0020] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0021] Figure 1 This is a structural diagram of the overall structure of the coal mine sampling device of this utility model;

[0022] Figure 2 This is a structural diagram of the rotating component of this utility model;

[0023] Figure 3This is a structural diagram of the cylinder of this utility model;

[0024] Figure 4 This is a structural diagram of the drill bit of this utility model.

[0025] Legend: 1. Connecting plate; 11. Connector; 12. Handle; 2. Cylinder; 21. Connecting flange; 22. Screw; 23. Feed port; 3. Rotating component; 4. Drive device; 5. Drill bit; 51. Round hole. Detailed Implementation

[0026] This application provides a coal mine sampling device that effectively solves the problems of traditional coal mine sampling devices, which involve complex sampling methods, require multiple tools or cumbersome disassembly operations, waste time, and are prone to sample contamination or loss. The device's drill bit adopts a conical design, which concentrates the applied force on a small area when in contact with the coal mine, thereby generating greater pressure and significantly reducing the resistance to be overcome during drilling. This allows for rapid and smooth drilling into the coal mine. The drill bit's surface has evenly spaced circular holes on its circumference, ensuring that coal particles enter the rotating part uniformly from all directions during drilling. This avoids sample deviation caused by uneven sampling and ensures that the collected sample accurately reflects the overall characteristics of the coal mine, providing a reliable basis for subsequent analysis and testing. The drive device is tightly fixed to the connecting flange at the top of the cylinder via a connector. This connection method allows the drive device to efficiently transmit power to the cylinder, thereby driving the rotating part and the drill bit to rotate together. The sampling port on the cylinder surface facilitates sample removal. Once sampling is complete, operators do not need additional complex tools or cumbersome disassembly steps. They simply remove the sampling device from the coal mine and collect the coal sample stored inside the cylinder directly through the sampling port. This design not only saves sample collection time but also reduces potential contamination or loss of samples during transfer, ensuring the integrity and originality of the samples and facilitating accurate subsequent analysis and testing.

[0027] Example: Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the technical solution in this application embodiment effectively solves the technical problem that traditional coal mine sampling devices are complex to use in actual use, requiring multiple tools or cumbersome disassembly operations, which not only wastes time but also easily causes sample contamination or loss. The overall idea is as follows:

[0028] To address the problems existing in the prior art, this utility model provides a coal mine sampling device, including a connecting plate 1, a cylinder 2, and a rotating component 3. A drill bit 5 is fixedly installed at the bottom end of the rotating component 3, and circular holes 51 are equidistantly opened on the surface of the drill bit 5. A driving device 4 for driving the rotating component 3 to rotate is fixedly installed at the upper end of the connecting plate 1. The cylinder 2 is fixedly installed at the top end of the rotating component 3, and the interior of the cylinder 2 communicates with the interior of the rotating component 3. A material inlet 23 is opened on the surface of the cylinder 2. Two handles 12 are fixedly installed at the upper end of the connecting plate 1, and both handles 12 are U-shaped. The rotating component 3 is located below the connecting plate 1. A connecting component 11 is fixedly connected to the output shaft of the driving device 4. A connecting flange 21 is fixedly installed at the top end of the cylinder 2, and a screw 22 is screwed into the connecting flange 21. The connecting flange 21 is threadedly fixed to the connecting component 11 by the screw 22. The rotating component 3 is a cylindrical design, and the drill bit 5 is a conical design.

[0029] The operator holds two U-shaped handles 12 and moves the coal mine sampling device to the location of the coal mine to be sampled. At this time, the rotating part 3 is located below the connecting plate 1. The drive device 4 is connected to the cylinder 2 at the top of the rotating part 3 through the connecting part 11. Specifically, the connecting part 11 is fixed to the connecting part 11 by screws 22 on the connecting flange 21 at the top of the cylinder 2, ensuring the stability of the entire device structure. The drive device 4 is started, and the output shaft of the drive device 4 drives the connecting part 11 to rotate. Since the connecting part 11 and the cylinder 2 are tightly fixed by the connecting flange 21 and screws 22, the cylinder is thus rotated. 2. Rotation. Since the top of the rotating part 3 is fixedly installed with the cylinder 2, and the rotating part 3 is designed as a round tube, the rotating part 3 rotates together with the cylinder 2. The drill bit 5 fixedly installed at the bottom of the rotating part 3 also rotates. The drill bit 5 is conical in shape, which is conducive to drilling into the coal mine more easily during rotation. During the process of the drill bit 5 drilling into the coal mine, the coal particles will enter the interior of the rotating part 3 through the round holes 51 that are equidistantly opened on the circumference of the surface of the drill bit 5. Since the interior of the cylinder 2 is connected to the interior of the rotating part 3, the coal particles entering the rotating part 3 will enter the cylinder 2 along the channel.

[0030] Once the drill bit 5 has drilled to the appropriate depth and obtained a sufficient coal sample, the drive device 4 is turned off and rotation stops. The operator holds the handle 12 and removes the entire sampling device from the coal mine. At this time, the coal sample is stored in the cylinder 2. The sample can be easily removed through the sampling port 23 on the surface of the cylinder 2 for subsequent testing and analysis.

[0031] Working principle:

[0032] The first step involves the operator holding two U-shaped handles 12 and moving the coal mine sampling device to the desired coal mine location. At this point, the rotating component 3 is positioned below the connecting plate 1. The drive device 4 is connected to the cylinder 2 at the top of the rotating component 3 via the connecting component 11. Specifically, the connecting component 11 is threadedly fixed to the connecting component 11 by screws 22 on the connecting flange 21 at the top of the cylinder 2, ensuring the stability of the entire device structure. The drive device 4 is then started, and its output shaft drives the connecting component 11 to rotate. Because the connecting component 11 and the cylinder 2 are tightly fixed by the connecting flange 21 and screws 22, the rotating component 11 rotates. As the cylinder 2 rotates, and because the top of the rotating part 3 is fixedly mounted on the cylinder 2, and the rotating part 3 is designed as a round tube, the rotating part 3 rotates together with the cylinder 2. The drill bit 5 fixedly mounted at the bottom of the rotating part 3 also rotates. The drill bit 5 has a conical design, which is beneficial for drilling into the coal mine more easily during rotation. During the process of the drill bit 5 drilling into the coal mine, coal particles will enter the interior of the rotating part 3 through the circular holes 51 that are equidistantly opened on the circumference of the surface of the drill bit 5. Since the interior of the cylinder 2 is connected to the interior of the rotating part 3, the coal particles entering the rotating part 3 will enter the cylinder 2 along the channel.

[0033] The second step is to turn off the drive device 4 and stop rotating after the drill bit 5 has drilled to a suitable depth and obtained enough coal samples. The operator holds the handle 12 and takes the entire sampling device out of the coal mine. At this time, the coal sample is stored in the cylinder 2. The sample can be easily taken out through the sampling port 23 on the surface of the cylinder 2 for subsequent testing and analysis.

[0034] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A coal mine sampling device, comprising a connecting plate (1), a cylinder (2), and a rotating component (3), characterized in that: A drill bit (5) is fixedly installed at the bottom end of the rotating part (3). The drill bit (5) has circular holes (51) equidistantly opened on the surface of the circumference. A driving device (4) for driving the rotating part (3) to rotate is fixedly installed at the upper end of the connecting plate (1). The top of the rotating component (3) is fixedly mounted with a cylinder (2), the interior of the cylinder (2) is connected to the interior of the rotating component (3), and the surface of the cylinder (2) is provided with a material inlet (23).

2. The coal mine sampling device according to claim 1, characterized in that: Two handles (12) are fixedly installed on the upper end of the connecting plate (1); Both grips (12) are U-shaped.

3. A coal mine sampling device according to claim 2, characterized in that: The rotating component (3) is located below the connecting plate (1), and the output shaft of the driving device (4) is fixedly connected to the connecting component (11).

4. A coal mine sampling device according to claim 3, characterized in that: A connecting flange (21) is fixedly installed at the top of the cylinder (2), and a screw (22) is screwed into the connecting flange (21). The connecting flange (21) is threadedly fixed to the connecting piece (11) by screws (22).

5. A coal mine sampling device according to claim 4, characterized in that: The rotating component (3) is a circular tube design.

6. A coal mine sampling device according to claim 5, characterized in that: The drill bit (5) is tapered.

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