Sampling device for coal mining and method of use thereof

Abstract

A sampling device for coal mining and its use method, belonging to the field of coal mining. The device comprises a support and a drilling device; the drilling device comprises a drill bit, a storage device, a sampling device, and a movable device; the drill bit is disposed at the lower end of the support, and the sampling device is disposed within the drill bit; the storage device is movably connected to the drill bit; and the movable device slidably engages with the drill bit. The present invention not only enables continuous sampling of the inner wall of a hole, facilitating observation of the surface structure at the depth corresponding to the hole, but also allows for the extraction of samples from fixed locations for testing as needed, avoiding repeated sampling operations and saving time.

Description

Technical Field

[0001] The invention relates to a sampling device for coal mining and a use method thereof, belonging to the field of coal mining. Background Art

[0002] Currently, the common sampling devices on the market can only take samples at a fixed depth after drilling a hole, and cannot observe the composition of the surface covered by the hole depth from top to bottom, resulting in the need for other instruments for detection, which is a waste of time. In addition, most of the commonly used sampling devices can only take samples once. If sampling is required at other depths, the sampling operation needs to be repeated. When the number of sampling times is large, it is a waste of time, so it is necessary to improve them. Summary of the Invention

[0003] The purpose of the present invention is to solve the above-mentioned problems existing in the background technology and to provide a sampling device for coal mining and a method of using the same.

[0004] The present invention achieves the above-mentioned purpose by adopting the following technical solutions:

[0005] A sampling device for coal mining comprises a bracket and a drilling device; the drilling device comprises a drill bit, a storage device, a sampling device and a movable device; the drill bit is arranged at the lower end of the bracket, and the sampling device is provided inside the drill bit; the storage device is movably connected to the drill bit; and the movable device is in sliding cooperation with the drill bit.

[0006] A method for using a sampling device for coal mining, the method comprising the following steps:

[0007] Step 1: Disassemble the sampling device, then screw the spiral rod into the spiral groove I, and finally connect the protrusion and the rod through the connecting rod;

[0008] Step 2: Start motor I and motor II to make the drill bit drill a hole on the ground surface;

[0009] Step 3: Start motor I in reverse to move the drill body to the ground, then remove the connecting rod and spiral rod;

[0010] Step 4: Put the ring on the outside of the support tube, then move the ring to connect with the spiral groove I, connect the sampling tube to the ring through the thread, and make the limit plate located in the annular groove;

[0011] Step 5: Start motor I and motor II again, so that the sampling tube scrapes the inner wall of the hole during movement and stores the debris in the annular groove to complete the sampling.

[0012] Compared with the prior art, the present invention has the following advantages: the present invention can not only continuously sample the inner wall of the hole, facilitating the observation of the surface structure composition at the depth corresponding to the hole, but also extract samples at fixed positions for testing as needed after the samples are taken out, thus avoiding repeated and multiple sampling operations and saving time. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a cross-sectional view of a sampling device for coal mining according to the present invention;

[0014] Figure 2 This is a front view of a support for a sampling device for coal mining according to the present invention;

[0015] Figure 3 It is a front view of a drilling device for coal mining and sampling device of the present invention;

[0016] Figure 4 It is a structural schematic diagram of a drilling device for drilling a hole using a sampling device for coal mining according to the present invention;

[0017] Figure 5 It is a structural schematic diagram of a sampling device for coal mining using a sampling device of the present invention;

[0018] Figure 6 It is a structural schematic diagram of a drill bit of a sampling device for coal mining according to the present invention;

[0019] Figure 7 yes Figure 6 Schematic diagram of the enlarged structure of A in the middle;

[0020] Figure 8 It is a front view of a rod of a sampling device for coal mining according to the present invention;

[0021] Figure 9 It is a front view of a storage device for a sampling device for coal mining according to the present invention;

[0022] Figure 10 This is a front view of a sampling device for coal mining according to the present invention;

[0023] Figure 11 The present invention is a schematic structural diagram of a movable device of a sampling device for coal mining. DETAILED DESCRIPTION

[0024] The technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] Specific implementation method 1: Figure 1-11 As shown, this embodiment records a sampling device for coal mining, including a bracket 1 and a drilling device 2; the drilling device 2 includes a drill bit 21, a storage device 22, a sampling device 23 and a movable device 24; the drill bit 21 is arranged at the lower end of the bracket 1, and the sampling device 23 is provided inside the drill bit 21; the storage device 22 is movably connected to the drill bit 21; the movable device 24 is slidably matched with the drill bit 21.

[0026] Specific implementation method 2: Figure 1-11 As shown, this embodiment is a further description of the specific embodiment 1, the bracket 1 includes two lower support plates 11, two springs 13, two slide bars 14, two upper support plates 15, a connecting tube 16, a transmission plate 17, a screw 18, a motor I 19, a connecting rod I 110, a transmission rod 111 and a connecting rod II 112; the upper end of the upper support plate 15 is fixedly connected to the top plate, the top plate is provided with a through hole, the connecting tube 16 opens downward and slides with the through hole, the side of the connecting tube 16 is fixedly connected to the transmission plate 17, and the top plate is fixedly connected Motor I 19, the output end of motor I 19 is provided with a screw 18, the screw 18 is threadedly connected to the transmission plate 17, the lower end of the upper support plate 15 is fixedly connected to the corresponding slide rod 14; the top end of the lower support plate 11 is provided with a groove 12 that slides with the slide rod 14, and the corresponding spring 13 is fixedly connected in the groove 12; the connecting rod I 110 is fixedly connected to the opposite surfaces of the two upper support plates 15, and the connecting rod II 112 is fixedly connected to the opposite surfaces of the two lower support plates 11, and the other end of the connecting rod II 112 is fixedly connected to the transmission rod 111.

[0027] Specific implementation method three: Figure 1-11As shown, this embodiment is a further explanation of the specific embodiment one, the drill bit 21 includes a drill bit body 211, a support tube 212, a rod 215, a motor II 216, two protrusions 217 and a connecting rod 218; the lower end of the support tube 212 is fixedly connected to the drill bit body 211, and the top of the support tube 212 is symmetrically fixedly connected to two protrusions 217; the motor II 216 is arranged on the motor seat, the motor seat is connected to the connecting tube 16 by a thread, and the output end of the motor II 216 is fixedly connected to the rod 215, and the lower end of the rod 215 is inserted into the upper end of the drill bit body 211 through a bearing; the support tube 212 is provided with a spiral groove I 213 running through the body of the support tube 212, and the inner wall of the support tube 212 is provided with a slideway 214 parallel to its central axis; the protrusion 217 is provided with a connecting hole I, and the rod 215 is provided with a connecting hole II 2151; the connecting rod 218 passes through the connecting hole I and the connecting hole II 2151.

[0028] Specific implementation method four: Figure 1-11 As shown, this embodiment is a further explanation of the specific embodiment one, and the rod 215 is further provided with a plurality of spiral grooves II 2152 and a plurality of spiral grooves III 2153; the spiral grooves II 2152 and the spiral grooves III 2153 are arranged at intervals on the outer circular surface of the rod 215, and the adjacent spiral grooves II 2152 and the spiral grooves III 2153 are connected to each other, and the pitch of the spiral groove II 2152 is smaller than the pitch of the spiral groove III 2153.

[0029] Specific implementation method five: Figure 1-11 As shown, this embodiment is a further explanation of the specific embodiment one, the storage device 22 includes a cylinder 221, a plurality of limit blocks 223 and a clamping block 225; the diameter of the cylinder 221 is equal to the inner diameter of the support tube 212, and a circular hole 224 is provided in the center of the cylinder 221, and a clamping block 225 is fixedly connected to the inner wall of the circular hole 224. The cylinder 221 is sleeved on the rod 215 through the circular hole 224, and the clamping block 225 slides with the spiral groove II 2152 and the spiral groove III 2153; a plurality of annular grooves 222 parallel to the horizontal plane are provided on the outer circumferential surface of the cylinder 221, and corresponding limit blocks 223 are fixedly connected to the top and bottom ends of the outer circumferential surface of the cylinder 221; the limit blocks 223 and the slideway 214.

[0030] Specific implementation method six: Figure 1-11As shown, this embodiment is a further explanation of the specific embodiment one, and the sampling device 23 includes a ring 231, a sampling barrel 232, a limit plate 233 and a spring hinge 234; the ring 231 is sleeved on the outside of the support barrel 212, and a threaded hole penetrating the ring 231 is provided on the outer circular surface of the ring 231, the sampling barrel 232 is connected to the threaded hole by a thread, and the lowest point and the highest point of one end of the sampling barrel 232 located inside the ring 231 are connected to the limit plate 233 by a spring hinge 234; the sampling barrel 232 is slidably matched with the spiral groove I 213, and the limit plate 233 is located in the annular groove 222.

[0031] Specific implementation method seven: Figure 1-11 As shown, this embodiment is a further explanation of the specific embodiment one, and the movable device 24 includes a screw rod 241 and a plurality of limit rods 242; the screw rod 241 slides with the spiral groove I 213, and a plurality of limit rods 242 are fixedly connected to the inner wall of the screw rod 241, and the other end of each limit rod 242 contacts the outer circular surface of the rod 215.

[0032] Specific implementation eight: Figure 1-11 As shown, this embodiment is a further description of the specific embodiment 1, and the transmission rod 111 is slidably matched with the spiral rod 241.

[0033] Specific implementation method nine: Figure 1-11 As shown, this embodiment describes a method for using a sampling device for coal mining, and the method includes the following steps:

[0034] Step 1: Disassemble the sampling device 23, then screw the spiral rod 241 into the spiral groove I 213, and finally connect the protrusion 217 and the rod 215 through the connecting rod 218;

[0035] Step 2: Start the motor I 19 and the motor II 216 to make the drill body 211 drill a hole on the ground surface;

[0036] Step 3: Start the motor I19 in reverse to move the drill body 211 to the ground, and then remove the connecting rod 218 and the spiral rod 241;

[0037] Step 4: Place the ring 231 on the outside of the support tube 212, then move the ring 231 until it is connected to the spiral groove I 213, connect the sampling tube 232 to the ring 231 through the thread, and make the limit plate 233 located in the annular groove 222;

[0038] Step 5: Start the motor I 19 and the motor II 216 again, so that the sampling tube 232 scrapes the inner wall of the hole during the movement and stores the debris in the annular groove 222, thereby completing the sampling.

[0039] The working principle of the present invention is as follows: the sampling device 23 is disassembled from the support cylinder 212, the screw rod 241 has the same pitch as the spiral groove I 213, and then the screw rod 241 is screwed into the spiral groove I 213, and finally the protrusion 217 and the rod 215 are connected by the connecting rod 218;

[0040] Then start motor I19 and motor II216, motor II216 drives rod 215 to rotate, rod 215 drives protrusion 217 to rotate around rod 215 through connecting rod 218, protrusion 217 drives support tube 212 connected to it to rotate, and then drives drill bit body 211 to rotate, and at the same time motor I19 drives screw 18 to rotate, and then drives transmission plate 17 to move downward, and transmission plate 17 drives connecting tube 16 to move downward, so that drill bit body 211 drills a hole on the surface and moves debris to the outer end of the hole through spiral rod 241; when drilling a hole, transmission rod 111 is located on the side of support tube 212, and transmission rod 111 is located in the gap of spiral rod 241, so when transmission rod 111 can reduce the lateral shaking of support tube 212, spring 13 can play a shock-absorbing role.

[0041] After the hole is drilled, the motor I19 is started in reverse to move the drill body 211 to the ground, and then the connecting rod 218 and the spiral rod 241 are removed from the support tube 212;

[0042] Then, the ring 231 is placed on the outside of the support tube 212 , and the ring 231 is moved to communicate with the spiral groove I 213 . The sampling tube 232 is connected to the ring 231 through the thread, and the limit plate 233 is located in the annular groove 222 .Start motor I19 and motor II 216 to move the drill bit 21 to the bottom of the hole, then turn off motor I19 and start motor II 216 alone. Since the connecting rod 218 is disassembled, motor II 216 only drives the rod 215 to rotate, and motor I19 drives the connecting cylinder 16 to drive motor II 216, rod 215, support cylinder 212, sampling device 23 and drill bit 21 to move downward. In the process of moving downward, motor II 216 drives the rod 215 to rotate. Since the outer circumferential surface of the cylinder 221 is fixedly connected with a limit block 223 that slides with the slide 214, although the cylinder 221 is sleeved on the rod 215, it cannot rotate with the rod 215. Also, because the circular portion on the cylinder 221 A clamping block 225 is fixedly connected to the inner wall of the shaped hole 224, and the clamping block 225 is slidably matched with the spiral groove II 2152 and the spiral groove III 2153. Therefore, when the rod 215 rotates, the clamping block 225 can be driven by the spiral groove II 2152 and the spiral groove III 2153 to move downward from the highest point of the rod 215, thereby driving the cylinder 221 to move downward. During the downward movement of the cylinder 221, the cylinder 221 drives the limiting plate 233 to move downward through the annular groove 222, and the limiting plate 233 drives the sampling barrel 232 to move downward along the spiral groove I 213 through the spring hinge 234. The spiral groove I 213, the spiral groove II 2152, and the spiral groove III 2153 have the same rotation direction, and the sampling barrel 232 scrapes the inner surface of the hole. The scraped debris passes through the sampling barrel 232 and enters the annular groove 222 currently corresponding to the sampling barrel 232. When the block 225 moves from the spiral groove II 2152 to the spiral groove III 2153, since the pitch of the spiral groove III 2153 is greater than the pitch of the spiral groove II 2152, and the pitch of the spiral groove I 213 remains unchanged, when the rod 215 rotates one circle, the vertical displacement distance of the block 225 in the spiral groove III 2153 is greater than the vertical displacement distance in the spiral groove II 2152. Since the drill body 211 is against the bottom end of the hole, the drill body 211 cannot rotate under the action of friction, so the sampling barrel 232 is vertically displaced in the spiral groove I 213. The displacement of the cylinder 221 and the annular groove 222 remains unchanged. It can be seen from the above process that the vertical displacement of the cylinder 221 and the annular groove 222 becomes larger, so the cylinder 221 and the sampling tube 232 will move relative to each other, and the annular groove 222 pushes the limiting plate 233 to rotate around the spring hinge 234, so that the limiting plate 233 moves to the second annular groove 222 from bottom to top. When the limiting plate 233 moves, the block 225 disengages from the spiral groove III 2153 and re-enters the spiral groove II 2152 for sampling. This cycle is repeated so that the collected continuous samples are arranged in different annular grooves 222, which is convenient for observing the structural composition. At the same time, samples can be taken out from a separate annular groove 222 as needed for testing, saving sampling time.The length of the sampling tube 232 exposed at the outer end of the support tube 212 is slightly greater than the horizontal length of the spiral rod 241 exposed at the outer end of the support tube 212, so that the sampling tube 232 can be in close contact with the inner wall of the hole, avoiding incomplete sampling.

[0043] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other configurations without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations coming within the meaning and range of equivalents of the claims are intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0044] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A sampling device for coal mining, characterized by: The invention comprises a support (1) and a drilling device (2); the drilling device (2) comprises a drill bit (21), a storage device (22), a sampling device (23) and a movable device (24); the drill bit (21) is arranged at the lower end of the support (1), and the sampling device (23) is provided inside the drill bit (21); the storage device (22) is movably connected to the drill bit (21); the movable device (24) is slidably matched with the drill bit (21); The bracket (1) includes two upper support plates (15), a connecting tube (16), a transmission plate (17), a screw (18) and a motor I (19); the upper end of the upper support plate (15) is fixedly connected to a top plate, a through hole is provided on the top plate, the connecting tube (16) is opened downward and is slidably matched with the through hole, the side of the connecting tube (16) is fixedly connected to the transmission plate (17), the top plate is fixedly connected to the motor I (19), the output end of the motor I (19) is provided with a screw (18), and the screw (18) is threadedly connected to the transmission plate (17); The drill bit (21) comprises a drill bit body (211), a support tube (212), a rod (215), a motor II (216), two protrusions (217) and a connecting rod (218); the lower end of the support tube (212) is fixedly connected to the drill bit body (211), and the top end of the support tube (212) is symmetrically fixedly connected to the two protrusions (217); the motor II (216) is arranged on a motor seat, and the motor seat is connected to the connecting tube (16) by a thread, and the output end of the motor II (216) is fixedly connected to the connecting tube (16). A rod (215) is fixedly connected, and the lower end of the rod (215) is inserted into the upper end of the drill body (211) through a bearing; the support tube (212) is provided with a spiral groove I (213) penetrating the support tube (212) body, and a slideway (214) parallel to the central axis thereof is provided on the inner wall of the support tube (212); the protrusion (217) is provided with a connecting hole I, and the rod (215) is provided with a connecting hole II (2151); the connecting rod (218) passes through the connecting hole I and the connecting hole II (2151); The rod (215) is further provided with a plurality of spiral grooves II (2152) and a plurality of spiral grooves III (2153); the spiral grooves II (2152) and the spiral grooves III (2153) are arranged at intervals on the outer circumferential surface of the rod (215); adjacent spiral grooves II (2152) and spiral grooves III (2153) are interconnected, and the pitch of the spiral groove II (2152) is smaller than the pitch of the spiral groove III (2153); The storage device (22) includes a cylinder (221), a plurality of limit blocks (223) and a clamping block (225); the diameter of the cylinder (221) is equal to the inner diameter of the support cylinder (212); a circular hole (224) is provided at the center of the cylinder (221); a clamping block (225) is fixedly connected to the inner wall of the circular hole (224); the cylinder (221) is sleeved on the rod (215) through the circular hole (224); the clamping block (225) is slidably matched with the spiral groove II (2152) and the spiral groove III (2153); a plurality of annular grooves (222) parallel to the horizontal plane are provided on the outer circumferential surface of the cylinder (221), and corresponding limit blocks (223) are fixedly connected to the top and bottom ends of the outer circumferential surface of the cylinder (221); the limit blocks (223) are connected to the slideway (214); The sampling device (23) includes a circular ring (231), a sampling tube (232), a limiting plate (233) and a spring hinge (234); the circular ring (231) is sleeved on the outside of the supporting tube (212), and a threaded hole penetrating the circular ring (231) is provided on the outer circumferential surface of the circular ring (231); the sampling tube (232) is connected to the threaded hole by a thread, and the lowest point and the highest point of one end of the sampling tube (232) located inside the circular ring (231) are connected to the limiting plate (233) by a spring hinge (234); the sampling tube (232) is in sliding cooperation with the spiral groove I (213), and the limiting plate (233) is located in the annular groove (222).

2. A sampling device for coal mining according to claim 1, characterized in that: The bracket (1) further comprises two lower support plates (11), two springs (13), two slide bars (14), a connecting rod I (110), a transmission rod (111) and a connecting rod II (112); the lower end of the upper support plate (15) is fixedly connected to a corresponding slide bar (14); the top end of the lower support plate (11) is provided with a groove (12) that slides with the slide bar (14), and the corresponding spring (13) is fixedly connected in the groove (12); the connecting rod I (110) is fixedly connected to the opposite surfaces of the two upper support plates (15), the connecting rod II (112) is fixedly connected to the opposite surfaces of the two lower support plates (11), and the other end of the connecting rod II (112) is fixedly connected to the transmission rod (111).

3. The sampling device for coal mining according to claim 2, characterized in that: The movable device (24) includes a spiral rod (241) and a plurality of limiting rods (242); the spiral rod (241) is slidably engaged with the spiral groove I (213), and a plurality of limiting rods (242) are fixedly connected to the inner wall of the spiral rod (241), and the other end of each limiting rod (242) contacts the outer circular surface of the rod (215).

4. The sampling device for coal mining according to claim 3, characterized in that: The transmission rod (111) and the spiral rod (241) are in sliding engagement.

5. The method for using the sampling device for coal mining according to claim 4, characterized in that: The method of use comprises the following steps: Step 1: disassemble the sampling device (23), then screw the spiral rod (241) into the spiral groove I (213), and finally connect the protrusion (217) and the rod (215) through the connecting rod (218); Step 2: Start motor I (19) and motor II (216) to make the drill bit body (211) drill a hole in the ground; Step 3: Start the motor I (19) in reverse to move the drill body (211) to the ground, and then remove the connecting rod (218) and the spiral rod (241); Step 4: Put the ring (231) on the outside of the support tube (212), then move the ring (231) to communicate with the spiral groove I (213), connect the sampling tube (232) to the ring (231) through the thread, and make the limit plate (233) located in the annular groove (222); Step 5: Start the motor I (19) and the motor II (216) again, so that the sampling tube (232) scrapes the inner wall of the hole during movement and stores the debris in the annular groove (222), thereby completing the sampling.

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