Portable drilling and slotting depth probing device for underground coal mine

Abstract

The utility model relates to the technical field of coal mine disaster control, in particular to a coal mine underground portable drilling and slotting depth probing device which comprises a hollow supporting rod. The device further comprises a hollow guide rod, a solid transmission rod, a high-toughness probe and a circular guide wheel, the two hollow supporting rods are connected up and down, and the hollow guide rod is arranged at the upper end of the hollow supporting rod on the upper side; according to the utility model, the hollow support rod, the solid transmission rod, the hollow guide rod and the high-toughness probe are connected and penetrated, and after the hollow guide rod penetrates into a drill hole and reaches a slotting position, the solid transmission rod pushes the high-toughness probe to extend out of the hollow guide rod and enter a slotting; the difference value of the scale marks before and after transmission of the solid transmission rod is the actual depth of the explored kerf, the device is convenient to disassemble and assemble, convenient to carry, accurate and reliable in exploring data, and in accordance with the actual situation, the follow-up guiding design for mine drilling is more reasonable, and the hidden danger problem brought to mine safety production is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine disaster management, in particular to a portable drilling and cutting depth detection device in coal mines. Background Art

[0002] Coal mines are an important mineral resource. When mining underground coal mines, drilling is often used to increase the permeability of the coal seams in the extraction area. The drilling seams need to be explored to understand the specific depth of the drilling seams, accurately control the construction process of the seams, and avoid mine safety accidents.

[0003] The existing method of calculating the depth of drilling cutting mostly adopts indirect calculation. The main means of investigation are numerical simulation, calculation of equivalent cutting radius by coal output during cutting or hole making, inversion of permeability enhancement effect by later extraction data, etc. This method relies too much on calculation inversion, resulting in inaccurate investigation results, which are easy to deviate from the actual values, affecting the subsequent guidance design of mine drilling and posing a hidden danger to mine safety production.

[0004] Therefore, in order to address the problem that the existing investigation of the depth of drilling cutting is too dependent on calculation inversion, resulting in inaccurate investigation results, which are easy to deviate from the actual values, affecting the subsequent guidance design of mine drilling, and bringing hidden dangers to mine safety production, a portable underground coal mine drilling cutting depth detection device can be designed. By connecting and inserting the hollow support rods, solid transmission rods, hollow guide rods and high-toughness probes, after the hollow guide rods are inserted into the borehole and reach the cutting position, the high-toughness probe is pushed out of the hollow guide rod and into the cutting position by the solid transmission rod. The difference between the scale lines before and after the transmission of the solid transmission rod is the actual depth of the cutting to be detected. Utility Model Content

[0005] In order to overcome the problem that the existing depth investigation of drilling cutting relies too much on calculation inversion, resulting in inaccurate investigation results, which easily deviate from the actual values, affect the subsequent guidance design of mine drilling, and bring hidden dangers to mine safety production.

[0006] The technical solution of the utility model is: a portable drilling and cutting depth detection device for underground coal mines, comprising a hollow support rod; also comprising a hollow guide rod, a solid transmission rod, a high-toughness probe and a circular guide wheel, the hollow support rod is provided with two upper and lower connected ones, and the upper end of the upper hollow support rod is provided with a hollow guide rod, and two solid transmission rods connected to each other are respectively provided inside the two hollow support rods, the upper end of the upper solid transmission rod is connected to the high-toughness probe, the outer side of the lower end of the two solid transmission rods is provided with a scale line, the upper part of the high-toughness probe is provided on the inner side of the hollow guide rod, the outer upper ends of the two hollow support rods are fixedly connected with a positioning sleeve, the outer side of the positioning sleeve is provided with a ring sleeve, and the outer side of the ring sleeve is evenly fixedly connected with three central component frame plates, and each central component frame plate is connected to a circular guide wheel at one end away from the ring sleeve.

[0007] Preferably, before use, first select a suitable number of hollow support rods and solid transmission rods to connect and penetrate each other, and connect the hollow guide rod to the hollow support rod on the upper side, connect the high-toughness probe to the solid transmission rod on the upper side, and penetrate the high-toughness probe into the hollow guide rod, put each set of ring sleeves on the corresponding positioning sleeve, and invert or tilt the device. The hollow guide rod is first inserted into the borehole, followed by multiple hollow support rods, and each set of ring sleeves, central component frame plate and circular guide wheel constitute a central guide assembly. The guide device descends along the center of the borehole, and after the hollow guide rod reaches the slit position, it pushes the lowest The solid transmission rods on the side are guided forward in the hollow support rod, pushing the upper end of the high-toughness probe out of the hollow guide rod and into the cutting slot. When it cannot move forward, the difference between the scale lines displayed before and after the transmission of the lower solid transmission rod is recorded, which is the actual cutting slot depth read. The device can be disassembled and assembled, so it is easy to carry. The actual measurement method is used to accurately detect the cutting slot depth. The measured data is more in line with the actual situation. Compared with the data obtained by relying on the calculation inversion investigation method, it is more accurate, which is conducive to the subsequent guidance design of mine drilling more reasonable, and reduces the hidden dangers brought to mine safety production.

[0008] Preferably, the lower ends of the two hollow support rods and the hollow guide rod are fixedly connected with the same internal threaded connecting sleeve 1, and the upper ends of the two hollow support rods are fixedly connected with an external threaded sleeve 1 that is adapted to the internal threaded connecting sleeve 1.

[0009] Preferably, the lower ends of the two solid transmission rods and the high-toughness probe are fixedly connected with the same internal threaded connecting sleeve 2, and the upper ends of the two solid transmission rods are fixedly connected with an external threaded sleeve 2 adapted to the internal threaded connecting sleeve 2.

[0010] Preferably, the bottoms of the two positioning sleeves are fixedly connected to the limiting rings, and the upper ends of the two positioning sleeves are fixedly connected to the fixing rings via four sets of fixing bolts.

[0011] Preferably, a rectangular frame is provided on the outer side of the bottom of the hollow support rod located on the lower side, and two guide plates are fixedly connected to the front and rear ends of the inner side of the rectangular frame respectively, and an arc-shaped clamping block is provided between the two guide plates.

[0012] Preferably, threaded rods are respectively threadedly connected to the middle of the front and rear ends of the rectangular frame, the relatively close ends of the two threaded rods are respectively rotatably connected to the surfaces of the corresponding arc-shaped clamping blocks, and the relatively distant ends of the two threaded rods are fixedly connected to knobs.

[0013] Preferably, two groups of through holes are provided on both sides of the front and rear ends of the rectangular frame, and a mounting rod is movably connected through each group of through holes.

[0014] Beneficial effects of the utility model:

[0015] 1. Before use, select an appropriate number of hollow support rods and solid transmission rods to connect and penetrate each other, connect the hollow guide rod to the upper hollow support rod, connect the high-toughness probe to the upper solid transmission rod, and penetrate the high-toughness probe into the hollow guide rod. Put each set of rings on the corresponding positioning sleeve, turn the device upside down or tilt, and let the hollow guide rod penetrate the borehole first, followed by multiple hollow support rods. Each set of rings, central component frame plate and circular guide wheel constitute a central guide assembly. The guide device descends along the center of the borehole. After the hollow guide rod reaches the slit position, push the lowermost The solid transmission rods are guided forward in the hollow support rods, pushing the upper end of the high-toughness probe out of the hollow guide rod and into the cutting slot. When it cannot move forward, the difference between the scale lines displayed before and after the transmission of the lower solid transmission rod is recorded, which is the actual cutting slot depth read. The device can be disassembled and assembled, so it is easy to carry. The actual measurement method is used to accurately detect the cutting slot depth. The measured data is more in line with the actual situation. Compared with the data obtained by relying on the calculation inversion investigation method, it is more accurate, which is conducive to the subsequent guidance design of mine drilling more reasonable, and reduces the hidden dangers brought to mine safety production. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Shown is a schematic diagram of the overall three-dimensional structure of a portable drilling and cutting depth detection device for coal mines according to the present invention;

[0017] Figure 2 Shown is a partial three-dimensional structural diagram of a portable drilling and cutting depth detection device for coal mines according to the present invention;

[0018] Figure 3 The utility model shows a portable drilling and cutting depth detection device for coal mines. Figure 2 Schematic diagram of disassembly structure in;

[0019] Figure 4 Shown is a schematic diagram of the disassembled structure of a positioning sleeve of a portable drilling and cutting depth detection device for underground coal mines according to the present invention;

[0020] Figure 5 What is shown is a schematic diagram of the rectangular frame three-dimensional structure of a portable drilling and cutting depth detection device for coal mines in the present invention.

[0021] Explanation of the accompanying drawings: 1. Hollow support rod; 2. Hollow guide rod; 3. Solid transmission rod; 4. High-toughness probe; 5. Positioning sleeve; 6. Ring sleeve; 7. Center component frame plate; 8. Circular guide wheel; 9. Internal thread connection sleeve 1; 10. External thread sleeve 1; 11. Internal thread connection sleeve 2; 12. External thread sleeve 2; 13. Limiting ring; 14. Fixing ring; 15. Fixing bolt; 16. Rectangular frame; 17. Guide plate; 18. Arc clamping block; 19. Threaded rod; 20. Knob; 21. Perforation; 22. Setting rod; 23. Scale line. DETAILED DESCRIPTION

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] See also Figure 1-Figure 5The utility model provides an embodiment: a portable drilling and cutting depth detection device for coal mines, comprising a hollow support rod 1; further comprising a hollow guide rod 2, a solid transmission rod 3, a high-toughness probe 4 and a circular guide wheel 8, the hollow support rod 1 is provided with two upper and lower connected ones, and the upper end of the upper hollow support rod 1 is provided with a hollow guide rod 2, the interiors of the two hollow support rods 1 are respectively provided with two mutually connected solid transmission rods 3, the upper end of the upper solid transmission rod 3 is connected to the high-toughness probe 4, and the outer sides of the lower ends of the two solid transmission rods 3 are provided with engraved Degree line 23, the upper part of the high toughness probe 4 is arranged on the inner side of the hollow guide rod 2, the outer upper ends of the two hollow support rods 1 are fixedly connected with a positioning sleeve 5, the outer sleeve of the positioning sleeve 5 is provided with a ring sleeve 6, and the outer side of the ring sleeve 6 is evenly fixedly connected with three central component frame plates 7. Each central component frame plate 7 is connected to a circular guide wheel 8 at one end away from the ring sleeve 6. Before use, select an appropriate number of hollow support rods 1 and solid transmission rods 3 to connect and penetrate each other, and connect the hollow guide rod 2 to the upper hollow support rod 1, and the high toughness probe 4 is connected The hollow guide rod 2 is connected to the solid transmission rod 3 on the upper side, and the high-toughness probe 4 is inserted into the hollow guide rod 2. Each set of ring sleeves 6 is put on the corresponding positioning sleeve 5. The device is inverted or tilted, and the hollow guide rod 2 is first inserted into the borehole, followed by multiple hollow support rods 1. Moreover, each set of ring sleeves 6, the central component frame plate 7 and the circular guide wheel 8 constitute a central guide assembly. The guiding device descends along the center of the borehole. After the hollow guide rod 2 reaches the cutting position, it pushes the solid transmission rod 3 on the lower side. Each solid transmission rod 3 is guided forward in the hollow support rod 1 to push the high The upper end of the tough probe 4 extends out of the hollow guide rod 2 and enters the cutting seam. When it cannot move forward, the difference between the scale lines 23 before and after the transmission of the lower solid transmission rod 3 is recorded, which is the actual cutting seam depth read. The device can be disassembled and assembled, so it is easy to carry. The actual measurement method is used to accurately detect the cutting seam depth. The measured data is more in line with the actual situation and is more accurate than the data obtained by relying on calculation inversion investigation. It is conducive to more reasonable guidance design for mine drilling and reduces the hidden dangers brought to mine safety production.

[0024] See also Figure 3-Figure 4In this embodiment, the lower ends of the two hollow support rods 1 and the hollow guide rod 2 are fixedly connected with the same internal thread connection sleeve 9, and the upper ends of the two hollow support rods 1 are fixedly connected with an external threaded sleeve 10 adapted to the internal thread connection sleeve 9. The two adjacent hollow support rods 1 and the hollow support rod 1 and the hollow guide rod 2 are connected by a set of corresponding internal thread connection sleeves 9 and external threaded sleeves 10, which are convenient for disassembly and assembly and easy to carry. The lower ends of the two solid transmission rods 3 and the high-toughness probe 4 are fixedly connected with the same internal thread connection sleeve 11. The upper ends of the two solid transmission rods 3 are fixedly connected with an external threaded sleeve 12 adapted to the internal threaded connection sleeve 11. The two adjacent solid transmission rods 3 and the solid transmission rod 3 and the high-toughness probe 4 are connected by a set of corresponding internal threaded connection sleeves 11 and external threaded sleeves 12, which are easy to assemble and disassemble and carry. The bottoms of the two positioning sleeves 5 are fixedly connected to the limiting ring 13, and the upper ends of the two positioning sleeves 5 are fixedly connected with the fixing ring 14 through four sets of fixing bolts 15. The limiting ring 13 and the fixing ring 14 fix and limit the installed ring sleeve 6.

[0025] See also Figure 1 and Figure 5 In this embodiment, a rectangular frame 16 is provided on the outer side of the bottom of the hollow support rod 1 located at the lower side. Two guide plates 17 are fixedly connected to the front and rear ends of the inner side of the rectangular frame 16. An arc-shaped clamping block 18 is provided between the two guide plates 17. The two arc-shaped clamping blocks 18 guide and push in the two sets of guide plates 17 to squeeze and fix the hollow support rod 1, which is convenient for fixing the current state of the device. Then, the hand is released to push the solid transmission rod 3. The middle of the front and rear ends of the rectangular frame 16 are respectively threaded with threaded rods 19. The relatively close ends of the two threaded rods 19 are respectively rotated and connected to the corresponding arc-shaped clamping blocks. On the surface of the block 18, the two threaded rods 19 are fixedly connected to the ends relatively far away from each other with knobs 20. By turning the knobs 20, the threaded rods 19 are driven to rotate, and the threaded rods 19 push the corresponding arc-shaped clamping blocks 18 to squeeze and fix the hollow support rod 1. Two groups of through holes 21 are opened on both sides of the front and rear ends of the rectangular frame 16. A mounting rod 22 is movably connected through each group of through holes 21. The mounting rod 22 passes through each group of through holes 21, and its front and rear ends are placed on the outer edges of the drilled hole to fix the state of the entire device, prevent the device from falling into the drilled hole, and facilitate the separate pushing of the solid transmission rod 3 to detect the depth of the cutting.

[0026] When working, first select a suitable number of hollow support rods 1 and solid transmission rods 3, fix them with the internal threaded connection sleeve 9 and the external threaded sleeve 10 that match each other, and insert them, and connect the hollow guide rod 2 to the hollow support rod 1 on the upper side, connect the high-toughness probe 4 to the solid transmission rod 3 on the upper side, and insert the high-toughness probe 4 into the hollow guide rod 2, put each set of ring sleeves 6 on the corresponding positioning sleeve 5, turn the device upside down or tilt, and let the hollow guide rod 2 penetrate into the borehole first, followed by multiple hollow support rods 1, and each set of ring sleeves 6, central component frame plate 7 and circular guide wheel 8 constitute a central guide assembly, which guides the device along the center of the borehole. Descend, and after the hollow guide rod 2 reaches the cutting position, put the rectangular frame 16 on the outside of the lowest hollow support rod 1, turn the two knobs 20 to drive the threaded rod 19 to rotate, push the arc clamp 18 to squeeze and fix the hollow support rod 1, and then pass the two mounting rods 22 through the rectangular frame 16, and put the two ends on the edge of the drilled hole to fix the position of the device, push the lowest solid transmission rod 3, and each solid transmission rod 3 is guided forward in the hollow support rod 1, pushing the upper end of the high-toughness probe 4 to extend out of the hollow guide rod 2 and into the cutting seam. When it can no longer move forward, the difference between the scale lines 23 before and after the transmission of the lower solid transmission rod 3 is the actual cutting depth read.

[0027] Through the above steps, before use, first select an appropriate number of hollow support rods 1 and solid transmission rods 3 to connect and penetrate each other, and connect the hollow guide rod 2 to the hollow support rod 1 on the upper side, and the high-toughness probe 4 is connected to the solid transmission rod 3 on the upper side, and the high-toughness probe 4 is inserted into the hollow guide rod 2, and each set of ring sleeves 6 is put on the corresponding positioning sleeve 5, and the device is inverted or tilted, and the hollow guide rod 2 is first inserted into the borehole, followed by multiple hollow support rods 1, and each set of ring sleeves 6, central component frame plate 7 and circular guide wheel 8 constitute a central guide assembly, and the guiding device descends along the center of the borehole. After the hollow guide rod 2 reaches the slit position, it pushes the solid transmission rod 3 on the lower side, and each solid transmission rod 3 is guided forward in the hollow support rod 1, pushing the high The upper end of the tough probe 4 extends out of the hollow guide rod 2 and enters the cutting seam. When it cannot move forward, the difference between the scale lines 23 before and after the transmission of the lower solid transmission rod 3 is recorded, which is the actual cutting seam depth read. The device can be disassembled and assembled, so it is easy to carry. The actual measurement method is used to accurately detect the cutting seam depth. The measured data is more in line with the actual situation. Compared with the data obtained by relying on the calculation inversion investigation method, it is more accurate, which is conducive to the subsequent guidance design of mine drilling more reasonable, and reduces the hidden dangers brought to mine safety production. It solves the problem that the existing investigation of the depth of drilling cutting relies too much on calculation inversion, resulting in inaccurate investigation results, which are easy to deviate from the actual value, affecting the subsequent guidance design of mine drilling, and bringing hidden dangers to mine safety production.

Claims

1. A portable drilling and cutting depth detection device for underground coal mines, comprising a hollow support rod (1); characterized in that: The invention also includes a hollow guide rod (2), a solid transmission rod (3), a high-toughness probe (4) and a circular guide wheel (8), wherein the hollow support rod (1) is provided with two upper and lower connected ones, and the upper end of the upper hollow support rod (1) is provided with a hollow guide rod (2), and the interiors of the two hollow support rods (1) are respectively provided with two mutually connected solid transmission rods (3), the upper end of the upper solid transmission rod (3) is connected to the high-toughness probe (4), and the outer sides of the lower ends of the two solid transmission rods (3) are provided with a scale line (23), and the upper part of the high-toughness probe (4) is provided on the inner side of the hollow guide rod (2), and the outer upper ends of the two hollow support rods (1) are fixedly connected with a positioning sleeve (5), and the outer side of the positioning sleeve (5) is provided with a ring sleeve (6), and the outer side of the ring sleeve (6) is evenly fixedly connected with three central component frame plates (7), and each central component frame plate (7) is connected to a circular guide wheel (8) at one end away from the ring sleeve (6).

2. The portable drilling and cutting depth detection device for underground coal mines according to claim 1, characterized in that: The lower ends of the two hollow support rods (1) and the hollow guide rod (2) are fixedly connected with the same internal thread connection sleeve (9), and the upper ends of the two hollow support rods (1) are fixedly connected with an external thread sleeve (10) adapted to the internal thread connection sleeve (9).

3. The portable drilling and cutting depth detection device for underground coal mines according to claim 1, characterized in that: The lower ends of the two solid transmission rods (3) and the high-toughness probe (4) are fixedly connected with the same internal thread connection sleeve 2 (11), and the upper ends of the two solid transmission rods (3) are fixedly connected with an external thread sleeve 2 (12) adapted to the internal thread connection sleeve 2 (11).

4. The portable drilling and cutting depth detection device for underground coal mines according to claim 1, characterized in that: The bottoms of the two positioning sleeves (5) are fixedly connected to the limiting ring (13), and the upper ends of the two positioning sleeves (5) are fixedly connected to the fixing ring (14) via four sets of fixing bolts (15).

5. The portable drilling and cutting depth detection device for underground coal mines according to claim 1, characterized in that: A rectangular frame (16) is provided on the outer side of the bottom of the hollow support rod (1) located at the lower side. Two guide plates (17) are fixedly connected to the front and rear ends of the inner side of the rectangular frame (16), and an arc-shaped clamping block (18) is provided between the two guide plates (17).

6. The portable drilling and cutting depth detection device for underground coal mines according to claim 5, characterized in that: The middle portions of the front and rear ends of the rectangular frame (16) are respectively threadedly connected with threaded rods (19), the relatively close ends of the two threaded rods (19) are respectively rotatably connected to the surfaces of the corresponding arc-shaped clamping blocks (18), and the relatively distant ends of the two threaded rods (19) are both fixedly connected with knobs (20).

7. The portable drilling and cutting depth detection device for underground coal mines according to claim 6, characterized in that: Two groups of through holes (21) are provided on both sides of the front and rear ends of the rectangular frame (16), and a mounting rod (22) is movably connected through each group of through holes (21).

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