A surveying and coring device suitable for breaking coal seams

Abstract

The utility model provides a kind of surveying and coring device suitable for broken coal seam, the rear side of rack is fixedly installed with handle, screw rod is longitudinally installed in the middle part of rack by bearing, the upper end of screw rod is fixedly installed with hand wheel, the left and right sides of rack are longitudinally fixedly installed with limit rod, lifting frame is installed on the outside of screw rod by ball nut, driving motor is fixedly installed on the rear side upper portion of lifting frame, front side is installed with rotating shaft by bearing, left and right sides are slid through by limit rod, rack is further provided with horizontal ejection frame assembly, combined drill pipe assembly is installed on the lower part of rotating shaft.The utility model installation rack, ejector rod, handle, the setting of ejector plate is favorable to horizontally taking out coal sample in lower drill cylinder, ensures the quality of coal sample, improves the applicability to broken coal seam.

Description

Technical Field

[0001] This utility model belongs to the field of coal seam exploration technology, and in particular relates to an exploration and coring device suitable for fractured coal seams. Background Technology

[0002] Currently, when exploring fractured coal seams, it is usually necessary to use coring equipment to collect coal samples from the fractured coal seam. Existing coring equipment typically includes a movable frame with a lifting device installed on the frame. The lifting device can drive the drive motor and drill barrel to rise and fall. The drive motor is connected to the drill barrel's rotating shaft. When the drill barrel rotates, it is lowered to collect samples. However, the drill barrel of this type of coring equipment is usually a single piece. When extracting coal seam samples from the drill barrel, tools are needed to push the coal samples out of the drill barrel. At this time, the drill barrel is set vertically. If sampling is performed on fractured coal seams, the coal samples that fall out are prone to collapse and mix between layers, thus affecting the quality of the coal samples extracted from the fractured coal seam. Therefore, the existing coring equipment has low applicability for coring fractured coal seams. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a core sampling device suitable for fractured coal seams. This device can extract coal samples laterally from the drill pipe, ensuring sample quality and improving its applicability to fractured coal seams. This utility model is achieved through the following technical solution:

[0004] A core drilling device suitable for crushed coal seams includes a frame, a handle fixedly mounted on the rear side of the frame, a threaded rod longitudinally mounted on the middle of the frame via a bearing, a handwheel fixedly mounted on the upper end of the threaded rod, limit rods longitudinally fixedly mounted on the left and right sides of the frame, a lifting frame mounted on the outside of the threaded rod via ball nuts, a drive motor fixedly mounted on the upper rear side of the lifting frame, and a rotating shaft mounted on the front side via a bearing, through which the limit rods slide. The frame also includes a transverse ejector assembly, and a combined drill pipe assembly is mounted on the lower part of the rotating shaft. The transverse ejector assembly includes a mounting frame and an ejector rod. The mounting frame is L-shaped and fixedly mounted on the upper rear side of the frame, located in front of the handle; the ejector rod passes through a threaded hole in the mounting frame. The assembly is threaded to the mounting bracket. The ejector rod is set along the front-to-back direction. A handle is fixedly installed at the rear end of the ejector rod, and an ejector plate is detachably and fixedly installed at the front end. The ejector plate is circular. The mounting bracket is fixedly installed on the upper side of the frame. The combined drill pipe assembly includes a lower drill pipe. A fixed drill pipe is set at the upper part of the lower drill pipe. The upper end of the lower drill pipe has protrusions that are equidistantly integrated. The lower end of the fixed drill pipe has grooves that are equidistantly integrated. The lower drill pipe and the fixed drill pipe are fitted together by the protrusions and grooves. A first mounting plate is integrated in pairs on both sides of the fixed drill pipe. A second mounting plate is integrated in pairs on both sides of the lower drill pipe. The second mounting plates on both sides are detachably and fixedly installed in the first mounting plates on both sides by bolts and nuts.

[0005] Preferably, the rotating shaft and the output shaft of the drive motor are connected by a pulley drive belt structure.

[0006] Preferably, the diameter of the ejector plate is adapted to the inner diameter of the lower drill pipe.

[0007] Preferably, the lower part of the frame is provided with rollers.

[0008] Preferably, a reinforcing rib is integrally provided between the lower end of the second mounting plate and the lower drill pipe.

[0009] Preferably, the fixed drill pipe is fixedly installed at the lower part of the rotating shaft.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. In this utility model, the mounting frame, ejector rod, handle, and ejector plate are designed to facilitate the lateral removal of coal samples from the lower drill barrel, ensuring the quality of the coal samples and improving the applicability to crushed coal seams.

[0012] 2. In this utility model, the lower drilling pipe, the fixed drilling pipe, the first mounting plate, the second mounting plate, and the reinforcing ribs are provided to facilitate the separation of the lower drilling pipe from the fixed drilling pipe. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a structural schematic diagram of the transverse ejector assembly of this utility model;

[0015] Figure 3 This is a structural schematic diagram of the combined drill pipe assembly of this utility model.

[0016] In the diagram: 1. Frame; 11. Handle; 12. Threaded rod; 13. Lifting frame; 14. Drive motor; 15. Limiting rod; 16. Rotating shaft; 2. Horizontal ejection frame assembly; 21. Mounting frame; 22. Ejection rod; 23. Handle; 24. Ejection plate; 3. Combined drill pipe assembly; 31. Lower drill pipe; 32. Fixed drill pipe; 33. First mounting plate; 34. Second mounting plate; 35. Reinforcing rib. Detailed Implementation

[0017] The present invention will now be described in detail with reference to the accompanying drawings.

[0018] As attached Figure 1As shown, a core drilling device suitable for crushed coal seams includes a frame 1. A handle 11 is fixedly installed on the rear side of the frame 1. A threaded rod 12 is longitudinally installed in the middle of the frame 1 via a bearing. A handwheel is fixedly installed at the upper end of the threaded rod 12 (which can be modified to be motor driven as needed by those skilled in the art). Limiting rods 15 are longitudinally fixedly installed on the left and right sides of the frame 1. A lifting frame 13 is installed on the outside of the threaded rod 12 via ball nuts. A drive motor 14 is fixedly installed on the upper rear side of the lifting frame 13. A rotating shaft 16 is installed on the front side via a bearing. The left and right sides are slidably passed through by the limiting rods 15. The frame 1 is also provided with a transverse ejector assembly 2. A combined drill pipe assembly 3 is installed at the lower part of the rotating shaft 16.

[0019] In this implementation plan, in conjunction with the appendix Figures 1-2 As shown, the transverse ejector assembly 2 includes a mounting bracket 21 and an ejector rod 22. The mounting bracket 21 is L-shaped and is fixedly installed on the upper rear side of the frame 1, and is located in front of the handle 11. The ejector rod 22 is threadedly connected to the mounting bracket 21 through a threaded hole in the mounting bracket 21. The ejector rod 22 is arranged in the front-rear direction. A handle 23 is fixedly installed at the rear end of the ejector rod 22, and an ejector plate 24 is detachably and fixedly installed at the front end. The ejector plate 24 is circular.

[0020] In this implementation plan, in conjunction with the appendix Figure 1 , Figure 3 As shown, the combined drill pipe assembly 3 includes a lower drill pipe 31, with a fixed drill pipe 32 disposed on the upper part of the lower drill pipe 31. The upper end of the lower drill pipe 31 has protrusions integrally arranged at equal intervals, and the lower end of the fixed drill pipe 32 has grooves integrally arranged at equal intervals. The lower drill pipe 31 and the fixed drill pipe 32 are fitted together by the protrusions and grooves. When the lower drill pipe 31 rotates, the protrusions and grooves increase the connection strength between the lower drill pipe 31 and the fixed drill pipe 32. A first mounting plate 33 is integrally arranged on each side of the fixed drill pipe 32, and a second mounting plate 34 is integrally arranged on each side of the lower drill pipe 31. The second mounting plates 34 on both sides are detachably fixed to the pairs on both sides by bolts and nuts. After core sampling is completed within the first mounting plate 33, the user disassembles the first mounting plate 33 and the second mounting plate 34 by removing the bolts and nuts, thereby separating the lower drill pipe 31 and the fixed drill pipe 32. After removing the lower drill pipe 31, it is placed horizontally at the horizontal ejector assembly 2. The user rotates the handle 23 to rotate the ejector rod 22, causing the ejector plate 24 to enter the lower drill pipe 31 and eject the coal sample horizontally. The external sampling box is placed at the bottom of the lower drill pipe 31 to receive the ejected coal sample, avoiding the situation where broken coal slag scatters and causes the extracted coal sample to become mixed when the coal sample is taken out vertically. This ensures the quality of the coal sample and improves its applicability to broken coal seams.

[0021] In this embodiment, specifically, the rotating shaft 16 and the output shaft of the drive motor 14 are connected by a pulley transmission belt structure.

[0022] In this embodiment, specifically, the diameter of the ejector plate 24 is adapted to the inner diameter of the lower drill pipe 31.

[0023] In this embodiment, specifically, the lower part of the frame 1 is provided with rollers.

[0024] In this embodiment, specifically, a reinforcing rib 35 is integrally provided between the lower end of the second mounting plate 34 and the lower drill pipe 31.

[0025] In this embodiment, specifically, the fixed drill pipe 32 is fixedly installed on the lower part of the rotating shaft 16.

[0026] Instructions for use: When drilling into a broken coal seam, the operator starts the drive motor 14. The drive motor 14 drives the rotating shaft 16 to rotate through the pulley transmission belt structure. The rotating shaft 16 drives the combined drill pipe assembly 3 to rotate. The operator manually turns the handwheel to rotate the threaded rod 12. At this time, the lifting frame 13 descends along the limit rod 15 to extract the core from the broken coal seam.

[0027] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution of this utility model, falls within the protection scope of this utility model.

Claims

1. A coring device suitable for fractured coal seams, characterized in that, The machine includes a frame (1), a handle (11) is fixedly installed on the rear side of the frame (1), a threaded rod (12) is longitudinally installed in the middle of the frame (1) through a bearing, a handwheel is fixedly installed at the upper end of the threaded rod (12), a limit rod (15) is longitudinally fixedly installed on the left and right sides of the frame (1), a lifting frame (13) is installed on the outside of the threaded rod (12) through a ball nut, a drive motor (14) is fixedly installed on the upper rear side of the lifting frame (13), a rotating shaft (16) is installed on the front side through a bearing, and the left and right sides are slidably passed through by the limit rod (15). The frame (1) is also provided with a transverse ejector assembly (2), and a combined drill pipe assembly (3) is installed at the lower part of the rotating shaft (16). The transverse ejector assembly (2) includes a mounting bracket (21) and an ejector rod (22). The mounting bracket (21) is L-shaped and is fixedly installed on the upper rear side of the frame (1) and located in front of the handle (11). The ejector rod (22) is threadedly connected to the mounting bracket (21) through a threaded hole in the mounting bracket (21). The ejector rod (22) is arranged in the front-rear direction. A handle (23) is fixedly installed at the rear end of the ejector rod (22), and an ejector plate (24) is detachably and fixedly installed at the front end. The ejector plate (24) is circular. The mounting bracket (21) is fixedly installed on the upper side of the frame (1). The combined drill pipe assembly (3) includes a lower drill pipe (31), a fixed drill pipe (32) is provided on the upper part of the lower drill pipe (31), the upper end of the lower drill pipe (31) is provided with protrusions at equal intervals, the lower end of the fixed drill pipe (32) is provided with grooves at equal intervals, the lower drill pipe (31) and the fixed drill pipe (32) are fitted together by the protrusions and grooves, the two sides of the fixed drill pipe (32) are provided with a pair of integrated first mounting plates (33), the two sides of the lower drill pipe (31) are provided with a second mounting plate (34), the two sides of the second mounting plate (34) are respectively detachably fixed in the two sides of the first mounting plate (33) provided by bolts and nuts.

2. The exploration and coring device for fractured coal seams as described in claim 1, characterized in that, The rotating shaft (16) and the output shaft of the drive motor (14) are connected by a pulley drive belt structure.

3. The exploration and coring device for fractured coal seams as described in claim 1, characterized in that, The diameter of the ejector plate (24) is adapted to the inner diameter of the lower drill pipe (31).

4. The exploration and coring device for fractured coal seams as described in claim 1, characterized in that, The lower part of the frame (1) is provided with rollers.

5. The exploration and coring apparatus for fractured coal seams as described in any one of claims 1-4, characterized in that, The lower end of the second mounting plate (34) and the lower drill pipe (31) are integrally provided with reinforcing ribs (35).

6. The exploration and coring device for fractured coal seams as described in claim 5, characterized in that, The fixed drill pipe (32) is fixedly installed on the lower part of the rotating shaft (16).

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