Coal seam sampling device for coal mine exploration
By introducing a striking mechanism and a receiving assembly into the coal mine exploration equipment, the problem of samples getting stuck inside the drill barrel and being difficult to remove was solved, enabling the smooth collection and acquisition of samples.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIEFA COAL IND GRP CO LTD DAXING COAL MINE
- Filing Date
- 2025-09-13
- Publication Date
- 2026-07-07
AI Technical Summary
When sampling with existing coal mine exploration equipment, the sample is easily compacted inside the drill barrel, making it difficult to remove from the drill barrel.
A coal mine exploration device including a striking mechanism was designed. The power component drives the mounting plate to move intermittently away from the drill barrel, and the striking hammer strikes the drill barrel. In conjunction with the material receiving component, a material receiving cloth is used to ensure the smooth drop of the sample.
This effectively solved the problem of samples getting stuck inside the drill barrel and being difficult to remove, enabling the smooth collection and acquisition of samples.
Smart Images

Figure CN224471307U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coal mine exploration technology, and in particular to a coal seam sampling device for coal mine exploration. Background Technology
[0002] Coal exploration is a geological exploration process guided by coalfield geology theory. It uses various exploration methods to discover coalfields and evaluate the development prospects of coal resources, and provides geological resource basis for mine development design. Before mining, coal mines need to conduct multiple explorations, sample and test multiple soil layers at the coal mine site, and use the sampling and testing data to determine the coal reserves and soil structure at that location.
[0003] A search revealed Chinese Patent Publication No. CN221484823U, which discloses a coal seam sampling device for coal mine exploration. The device includes a base plate, with sliding rods riveted to both sides of the top of the base plate. A sliding plate is movably fitted onto the top of the sliding rod surface. A drive plate is riveted to the opposite side of the sliding plate. A drive motor is bolted to the top of the drive plate. The output end of the drive motor passes through the drive plate and is fixedly connected to a drill barrel. A scraping mechanism is bolted to the rear side of the top of the base plate. An angle sensor is bolted to the front side of the top of the drive plate. A controller is bolted to the front side of the drive plate. Lead screws are threaded through the four corners of the top of the base plate. An adjusting cone is movably connected to the bottom end of the lead screw via a bearing. A knob is riveted to the top end of the lead screw. A light strip is bolted to the front side of the base plate.
[0004] During sampling, the sample may be compacted inside the drill barrel, making it difficult to remove from the drill barrel. Utility Model Content
[0005] The purpose of this invention is to provide a coal seam sampling device for coal mine exploration in order to solve the above-mentioned problems.
[0006] This utility model achieves the above objectives through the following technical solutions:
[0007] A coal seam sampling device for coal mine exploration includes a base plate with four casters at the bottom corners. A lifting plate is mounted on the top of the base plate via a lifting assembly. A drilling motor is fixedly connected to the top of the lifting plate, and a drill barrel is fixedly connected to the output end of the drilling motor. A striking mechanism is provided on one side of the drill barrel. The striking mechanism includes a mounting plate. A mounting groove is provided at the bottom of the lifting plate, and the mounting plate is slidably connected in the mounting groove. A spring is fixedly connected between the mounting plate and the mounting groove. A striking hammer is fixedly connected to the side of the mounting plate near the drill barrel. The striking mechanism also includes a power assembly for driving the mounting plate to move intermittently away from the drill barrel. A receiving assembly is provided on the rear top side of the base plate.
[0008] Preferably, the power assembly includes a rotary motor fixedly connected to the top of the lifting plate, and a cam fixedly connected to the output shaft of the rotary motor, the cam being located on the side of the mounting plate near the drill barrel.
[0009] Preferably, the receiving assembly includes two vertical plates fixedly connected to the rear side of the top of the base plate, a mounting shaft rotatably connected between the two vertical plates, a torsion spring connected between the mounting shaft and the vertical plates, a receiving cloth wound on the mounting shaft, an insertion rod fixedly connected to the end of the receiving cloth, and ball handles fixedly connected to both ends of the insertion rod.
[0010] Preferably, in the initial state, the ball handle abuts against the vertical plate.
[0011] Preferably, the lifting assembly includes two mounting brackets fixedly connected to the top of the base plate, each mounting bracket having a slider slidably connected therein. A lifting plate is fixedly connected between the two sliders. A lead screw is rotatably connected to one mounting bracket, and a slide rod is fixedly connected to the other mounting bracket. One slider is threadedly connected to the lead screw, and the other slider is slidably connected to the slide rod. A lifting motor is fixedly connected to the top of the mounting bracket, and the lead screw is connected to the output end of the lifting motor via a coupling.
[0012] Preferably, the bottom of the drill barrel is fixedly connected with several tooth tips.
[0013] Preferably, the top of the base plate has a clearance hole.
[0014] The beneficial effect is that the mounting plate is driven by the power component to move intermittently away from the drill barrel. After the mounting plate loses its drive, it begins to move towards the drill barrel under the action of the spring, striking the drill barrel and making it easier for the sample stuck inside the drill barrel to fall out.
[0015] The additional technical features and advantages of this utility model will become more apparent from the following description, or may be learned through specific practice of this utility model. Attached Figure Description
[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0017] Figure 1 This is a schematic diagram of a coal seam sampling device for coal mine exploration as described in this utility model;
[0018] Figure 2 This is a front view of the internal structure of a coal seam sampling device for coal mine exploration as described in this utility model;
[0019] Figure 3 This is a top view of a coal seam sampling device for coal mine exploration as described in this utility model;
[0020] Figure 4 This is a bottom view of the internal structure of a coal seam sampling device for coal mine exploration as described in this utility model;
[0021] Figure 5 This is a side view of the receiving component of a coal seam sampling device for coal mine exploration as described in this utility model.
[0022] The reference numerals in the attached drawings are explained as follows: 1. Base plate; 101. Moving wheel; 201. Mounting bracket; 202. Slider; 203. Lead screw; 204. Slide rod; 205. Lifting motor; 3. Lifting plate; 401. Drilling motor; 402. Drill barrel; 501. Mounting plate; 502. Spring; 503. Striking hammer; 504. Rotary motor; 505. Cam; 601. Vertical plate; 602. Mounting shaft; 603. Receiving cloth; 604. Insert rod; 605. Ball handle. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, all electrical components mentioned in this document are electrically connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that provides control.
[0025] The present invention will be further described below with reference to the accompanying drawings:
[0026] like Figures 1-5As shown, a coal seam sampling device for coal mine exploration includes a base plate 1. Self-locking casters 101 are installed at the four corners of the bottom of the base plate 1. A lifting plate 3 is installed on the top of the base plate 1 via a lifting assembly. The lifting assembly includes two mounting frames 201 fixedly connected to the top of the base plate 1. Sliding blocks 202 are slidably connected within each mounting frame 201. The lifting plate 3 is fixedly connected between the two sliding blocks 202. A lead screw 203 is rotatably connected within one mounting frame 201, and a sliding rod 204 is fixedly connected within the other mounting frame 201. One sliding block 202 is threadedly connected to the lead screw 203, and the other sliding block 202 is slidably connected to the sliding rod 204. A lifting motor 205 is fixedly connected to the top of the mounting frame 201, and the lead screw 203 is connected to the output end of the lifting motor 205 via a coupling.
[0027] A drilling motor 401 is bolted to the top of the lifting plate 3. A drill cylinder 402 is fixedly connected to the output end of the drilling motor 401. Several tooth tips are fixedly connected to the bottom of the drill cylinder 402. An clearance hole is provided on the top of the bottom plate 1 to facilitate the movement of the drill cylinder 402. When the drilling motor 401 is started, it drives the drill cylinder 402 to rotate. At the same time, the lifting assembly drives the drill cylinder 402 to rotate downward, thereby drilling the required coal seam into the drill cylinder 402. Sampling using the drill cylinder 402 is existing technology and will not be described in detail.
[0028] A striking mechanism is provided on one side of the drill barrel 402. The striking mechanism includes a mounting plate 501. A mounting groove is provided at the bottom of the lifting plate 3. The mounting plate 501 is slidably connected in the mounting groove. A spring 502 is fixedly connected between the mounting plate 501 and the mounting groove. A striking hammer 503 is fixedly connected to the side of the mounting plate 501 near the drill barrel 402.
[0029] The striking mechanism also includes a power assembly for driving the mounting plate 501 to move intermittently away from the drill barrel 402. The power assembly includes a rotary motor 504 fixedly connected to the top of the lifting plate 3. A cam 505 is fixedly connected to the output shaft of the rotary motor 504. The cam 505 is located on the side of the mounting plate 501 near the drill barrel 402. In the initial state, the tip of the cam 505 abuts against the mounting plate 501, causing the striking hammer 503 to separate from the drill barrel 402, thus avoiding affecting the rotation of the drill barrel 402.
[0030] A receiving assembly is provided on the top rear side of the base plate 1. The receiving assembly includes two vertical plates 601 fixedly connected to the top rear side of the base plate 1. A mounting shaft 602 is rotatably connected between the two vertical plates 601. A torsion spring is connected between the mounting shaft 602 and the vertical plates 601. A receiving cloth 603 is wound on the mounting shaft 602. An insertion rod 604 is fixedly connected to the end of the receiving cloth 603. Ball handles 605 are fixedly connected to both ends of the insertion rod 604. In the initial state, the ball handles 605 abut against the vertical plates 601, which facilitates the limiting of the ball handles 605 by the vertical plates 601.
[0031] Working Principle: In operation, the base plate 1 is first moved to a suitable position using the moving wheels 101. Then, the drilling motor 401 is started, driving the drill barrel 402 to rotate. Simultaneously, the lifting motor 205 is started, driving the lead screw 203 to rotate. The lead screw 203 drives the slider 202 to move the lifting plate 3 downwards, causing the drill barrel 402 to rotate downwards and collect the sample inside. After the drill barrel 402 reaches a certain depth, the lifting motor 205 reverses, causing the slider 202 to drive the lifting plate 3 to move the drill barrel 402 upwards. After the drill barrel 402 reaches a certain height, the lifting motor 205 is turned off. The operator then uses the ball handle 605 and the insertion rod 604 to pull the receiving cloth 603 forward, laying the sample from front to back on the receiving cloth 603 according to depth, facilitating the collection of coal seam samples at different depths. After collection, the remaining sample on the receiving cloth 603 is cleaned, and then the ball handle 605 is released. The mounting shaft 602 rotates under the action of the torsion spring, and the receiving cloth 603 is wound up. When the sample is stuck in the drill cylinder 402 and does not fall out easily, the rotary motor 504 is started. The rotary motor 504 drives the cam 505 to rotate. When the tip of the cam 505 moves away, the mounting plate 501 drives the hammer 503 to move towards the drill cylinder 402 under the action of the spring 502, and strikes the drill cylinder 402. When the tip of the cam 505 abuts against the mounting plate 501, it drives the mounting plate 501 to move away from the drill cylinder 402. The spring 502 stores force. When the tip of the cam 505 moves away, the spring 502 releases force, and the mounting plate 501 drives the hammer 503 to move, continuing to strike the drill cylinder 402, so that the sample in the drill cylinder 402 falls smoothly onto the receiving cloth 603.
[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A coal seam sampling device for coal mine exploration, comprising a base plate (1), wherein movable wheels (101) are installed at the four corners of the bottom of the base plate (1), and a lifting plate (3) is installed on the top of the base plate (1) via a lifting assembly, wherein a drilling motor (401) is fixedly connected to the top of the lifting plate (3), and a drill cylinder (402) is fixedly connected to the output end of the drilling motor (401), characterized in that: A striking mechanism is provided on one side of the drill barrel (402). The striking mechanism includes a mounting plate (501). The bottom of the lifting plate (3) is provided with a mounting groove. The mounting plate (501) is slidably connected in the mounting groove. A spring (502) is fixedly connected between the mounting plate (501) and the mounting groove. A striking hammer (503) is fixedly connected to the side of the mounting plate (501) near the drill barrel (402). The striking mechanism also includes a power component. The power component is used to drive the mounting plate (501) to move intermittently away from the drill barrel (402). A receiving component is provided on the top rear side of the base plate (1).
2. The coal seam sampling device for coal mine exploration according to claim 1, characterized in that: The power assembly includes a rotary motor (504) fixedly connected to the top of the lifting plate (3), and a cam (505) fixedly connected to the output shaft of the rotary motor (504). The cam (505) is located on the side of the mounting plate (501) near the drill barrel (402).
3. The coal seam sampling device for coal mine exploration according to claim 1, characterized in that: The receiving assembly includes two vertical plates (601) fixedly connected to the rear top of the base plate (1). An installation shaft (602) is rotatably connected between the two vertical plates (601). A torsion spring is connected between the installation shaft (602) and the vertical plates (601). A receiving cloth (603) is wound on the installation shaft (602). A plug rod (604) is fixedly connected to the end of the receiving cloth (603). Ball handles (605) are fixedly connected to both ends of the plug rod (604).
4. A coal seam sampling device for coal mine exploration according to claim 3, characterized in that: In the initial state, the ball handle (605) abuts against the vertical plate (601).
5. A coal seam sampling device for coal mine exploration according to claim 1, characterized in that: The lifting assembly includes two mounting brackets (201) fixedly connected to the top of the base plate (1). Sliders (202) are slidably connected in both mounting brackets (201). The lifting plate (3) is fixedly connected between the two sliders (202). A lead screw (203) is rotatably connected in one mounting bracket (201), and a slide rod (204) is fixedly connected in the other mounting bracket (201). One slider (202) is threadedly connected to the lead screw (203), and the other slider (202) is slidably connected to the slide rod (204). A lifting motor (205) is fixedly connected to the top of the mounting bracket (201), and the lead screw (203) is connected to the output end of the lifting motor (205) through a coupling.
6. A coal seam sampling device for coal mine exploration according to claim 1, characterized in that: The bottom of the drill barrel (402) is fixedly connected with several tooth tips.
7. A coal seam sampling device for coal mine exploration according to claim 1, characterized in that: The bottom plate (1) has a clearance hole on its top.