Drilling and coring device and drilling and coring method

Abstract

The invention provides a drilling and coring device and a drilling and coring method.The drilling and coring device comprises a moving frame, a water tank is fixedly installed at the bottom of the moving frame, and a communicating hole is formed in the position, located on one side of the water tank, of the top of the moving frame; and a first driving motor is fixedly mounted at the top of the moving frame and located on one side of the communicating hole. The inner ring is arranged in one drilling pipe, a certain space exists between a coal core or a rock core obtained through drilling and the inner wall of the drilling pipe, then after a coring device enters the drilling pipe downwards, the coal core or the rock core can be clamped and stretched upwards through the clamping jaw, in the process, the drilling pipe does not need to move upwards to carry the coal core or the rock core upwards, and the drilling efficiency is improved. The drill pipe is prevented from leaving the drill hole, so that broken stones, broken carbon and the like around the drill hole fall into the drill hole, the drill hole is blocked, and the drill pipe is prevented from continuously coring a rock stratum and a coal seam in depth along the drill hole.

Description

Technical Field

[0001] The invention belongs to the field of coal mining, relates to a drilling and coring technology, and specifically relates to a drilling and coring device and a drilling and coring method. Background Art

[0002] Coring is a geological exploration and engineering detection technology that uses a special drill bit to drill into underground rock or structures to obtain underground samples (i.e. "cores" or "core samples") for analysis and research.

[0003] Before coal mining, in order to obtain samples representing the underground structure, through the analysis of these samples, we can understand the structure, lithology, strength and other characteristics of the rock and soil, and provide important address basis for subsequent coal mining. At the same time, through coring, we can intuitively observe the stratification, thickness and coal quality changes of the coal seams, thereby helping to determine the mining location and mining method of the coal mine. The drilling coring device will be used to drill and sample the coal mine.

[0004] When the existing coring device is in use, after the drill bit extends downward to a certain depth, the device needs to move up from the borehole to take out the rock core or coal core from the device. However, when the coring device moves upward from the borehole, some rocks or coal crushed by drilling on the inner wall of the borehole may fall into the borehole, causing blockage of the borehole, which affects the coring device's ability to continue to drill and coring downward along the borehole.

[0005] Therefore, we propose a coring device and a coring method to solve the above problems. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a coring device and a coring method for drilling holes to solve the problems raised in the above-mentioned background technology.

[0007] The object of the present invention can be achieved through the following technical scheme: comprising a mobile frame, a water tank is fixedly installed at the bottom of the mobile frame, a connecting hole is opened at the top of the mobile frame and on one side of the water tank, a first driving motor is fixedly installed at the top of the mobile frame and on one side of the connecting hole, one end of the output shaft of the first driving motor is fixedly connected to the first rotating shaft through a coupling, a first gear is fixedly installed at the top of the first rotating shaft, support rods are evenly fixedly installed at the top of the mobile frame and around the connecting hole, a plurality of support rods are slidably connected to the tops of the support rods, a drilling device is threadedly connected to the middle of the gear ring, the bottom end of the drilling device passes through the connecting hole and extends to the bottom of the mobile frame, a coring device is rotatably installed at the top of the mobile frame and on one side of the gear ring, a clamping hole is opened at the top of the mobile frame and on the bottom of the coring device, the bottom end of the coring device extends to the inside of one of the clamping holes through a clamping bolt, an adjustment component is arranged at the top of the mobile frame and on the other side of the gear ring, and both ends of the adjustment component extend to both sides of the outer surface of the drilling device;

[0008] The drilling device includes multiple drill pipes, a threaded groove is opened in the middle of the bottom end of the drill pipe, the top end of the drill pipe is fixedly connected to a first threaded connecting pipe, the bottom of the inner wall of one of the drill pipes is fixedly connected to an inner ring, a drill bit is provided at the bottom end of one of the drill pipes, the top end of the drill bit is fixedly connected to a second threaded connecting pipe, the top thread of the second threaded connecting pipe extends to the inside of the threaded groove, and first limiting grooves are opened on both sides of the inner walls of the multiple drill pipes.

[0009] Preferably, the coring device includes a support rod, the top of the support rod is fixedly connected to a fixing plate, a second driving motor is fixedly installed on one side of the top of the fixing plate, one end of the output shaft of the second driving motor is fixedly connected to a winding roller via a coupling, a wire rope is provided on the surface of the winding roller, limiting holes are provided on the top of the fixing plate and on both sides of the bottom of the winding roller, the end of the wire rope extends to the bottom of the fixing plate through the limiting holes, the bottom end of the wire rope is fixedly connected to a lower moving ring, the outer surface of the lower moving ring is in contact with the inner wall of the drill pipe via rollers, and clamps are fixedly installed around the bottom of the lower moving ring.

[0010] Preferably, the adjustment assembly includes a third drive motor, which is fixedly mounted on the bottom of the movable frame, and one end of the output shaft of the third drive motor is fixedly connected to a threaded rod via a coupling, and the top of the threaded rod passes through the movable frame and extends to the top of the movable frame, and a limiting rod is fixedly mounted on the top of the movable frame and on one side of the threaded rod.

[0011] Preferably, the surface of the threaded rod is threadedly connected to the first folding frame, one side of the first folding frame is slidably connected to the limiting rod, second limiting grooves are provided on both sides of the top of the first folding frame, an electric telescopic rod is fixedly installed on the top of one side of the first folding frame, limiting rings are fixedly installed at both ends of the electric telescopic rod, connecting rods are arranged inside the two limiting rings, one end of the two connecting rods extends to one side of the first folding frame through the second limiting groove, one end of the two connecting rods is fixedly connected to a touch roller, and the other end of the two connecting rods is fixedly connected to a second gear.

[0012] Preferably, a second folding frame is fixedly installed on one side of the bottom of the first folding frame, and both ends of one side of the second folding frame are rotatably connected with second rotating shafts, and one end of two second rotating shafts is fixedly installed with third gears, the two third gears are meshed, and the two sides of the two third gears are respectively meshed with the two second gears, and a fourth drive motor is fixedly installed on one side of the second folding frame, and one end of the output shaft of the fourth drive motor is fixedly installed on one end of one of the second rotating shafts through a coupling.

[0013] Preferably, a fence is fixedly installed on the edge of the top of the movable rack, a storage box is fixedly installed on the top of the movable rack and on one side of the gear ring, and a storage frame is fixedly installed on the top of the storage box.

[0014] As a preferred embodiment, a coring device is provided, wherein the coring method of the device comprises the following specific steps:

[0015] The drill bit is then moved downwards to the bottom of the frame, and the ... At this time, the staff can rotate the two connecting rods so that the two second gears can mesh with the two third gears respectively. After the two second gears are accurately meshed with the two third gears, the first drive motor and the fourth drive motor can be started. The first drive motor drives the drill pipe to rotate by relying on the gear ring, and the fourth drive motor can drive the two contact rollers to rotate in the opposite direction by relying on the third gear and the second gear, so that the drill pipe rotates downward all the time to drill the rock strata and coal seams in the coal mine. When the top of a drill pipe is about to move to the two contact rollers, the fourth drive motor pauses. At this time, the staff can take another drill pipe from the mobile frame and align the thread groove at its bottom with the position of the first threaded connection pipe on the drill pipe below. In the process of the drill pipe continuing to rotate, the two drill pipes can be threaded together. When the two drill pipes are stably threaded together, the first limit grooves inside the two drill pipes are aligned, and then the fourth drive motor is started again, relying on the two contact rollers to rotate downward together, so that the drill pipe can continue to drill deeper into the rock strata and coal seams downward;

[0016] When the drill pipe is fully lowered into the rock or coal layer, the first drive motor and the fourth drive motor need to be paused, and then the staff can take out the clamping bolt at the bottom of the coring device from a clamping hole, and rotate the coring device to rotate the fixed plate to the top of the drilling device, and then control the second drive motor to start through the control switch on the mobile frame, so that the wire rope wound on the winding roller is loosened, and the weight of the lower moving ring is large, so it can move downward with the lower moving wire rope. When the lower moving ring and the clamp are about to move down to the drill pipe, the staff can adjust the position of the drill pipe so that the positions of the two first limit grooves on both sides of the inner wall of the drill pipe are aligned with the limit grooves on the outer side of the lower moving ring. Corresponding to the position of the positioning block, when the lower moving ring moves downward, it continues to move downward from the gap between the inner wall of the drill pipe and the rock core or coal core. After the lower moving ring moves down to a suitable depth, the second driving motor is paused, and the device inside the lower moving ring controls the clamping claws to tighten toward the middle, clamp the rock core or coal core and keep tightening toward the middle. As the bottom of the clamping claws becomes thinner and thinner, the rock core or coal core can be clamped off from here. Then the second driving motor is restarted, and the wire rope is wound up by the winding roller, so that the lower moving ring can be pulled up, thereby pulling the coal core or rock core up from the inside of the drill pipe. After a section of the coal core or rock core is taken out, the above operation can be repeated, and the drill pipe is continued to be added to drill downward, and then the rock core or coal core left in the center of the borehole is taken out.

[0017] Step 3. When using the coring device to drill and coring rock or coal seams, the staff can remove the water pipe stuck at the bottom of the water tank and point one end of the water pipe toward the contact point between the drill pipe and the ground. When the drill pipe rotates downward, the water inside the water tank can flow out evenly through the water pipe, thereby wetting and cooling the drill pipe and the drill bit at the bottom. During the use of the coring device, the water in the water tank can increase the weight of the entire device. After the coring device takes out the drilled rock core or coal core from the drill pipe, the storage box can be opened to store the rock cores or coal cores one by one.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] By opening a connecting hole on the mobile frame, the first driving motor, the first gear and the gear ring cooperate to drive the drill pipe and the drill bit to rotate. After the adjustment component is adjusted, it can contact the drill pipe to transport the drill pipe downward. At the same time, the first threaded connecting pipe at one end of the drill pipe is threadedly connected with the thread groove at the other end of the other drill pipe, so that the coal seams and rock strata at different depths in the coal mine can be drilled, thereby obtaining coal cores and rock cores at different depths, which is convenient for the staff to inspect the coal mine conditions;

[0020] By setting an inner ring inside one of the drill pipes, there is a certain space between the coal core or rock core obtained by drilling and the inner wall of the drill pipe. After the coring device goes down into the drill pipe, the coal core or rock core can be clamped and pulled up by the clamping claws. In this process, the drill pipe does not need to move up to bring up the coal core or rock core, so as to avoid the drill pipe leaving the borehole, causing some gravel and carbon fragments around the borehole to fall into the borehole, resulting in blockage of the borehole, which affects the drill pipe to continue to coring the rock layer and coal layer at a depth along the borehole.

[0021] When using a coring device to grab the coal core or rock core drilled out of the drill pipe, if the length of the coal core or rock core is very long, the coal core or rock core can be adjusted by changing the position of the first folding frame in the adjustment component, and then adjusting the distance between the two side contact rollers. After the two contact rollers contact the rock core or coal core, the coring device moves to one side, and the adjustment component can be used to take the very long rock core or coal core out of the drill pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0023] Figure 1 It is a structural schematic diagram of an embodiment of a drilling and coring device and a drilling and coring method provided by the present invention;

[0024] Figure 2 yes Figure 1 A rear view of the structure of the mobile rack shown;

[0025] Figure 3 yes Figure 1 A structural cross-sectional view of the drilling device shown;

[0026] Figure 4 yes Figure 1 A schematic diagram of the structure of the adjustment component shown;

[0027] Figure 5 yes Figure 4 The structural schematic diagram of the first folding frame shown;

[0028] Figure 6 yes Figure 1 The structural schematic diagram of the coring device is shown.

[0029] In the figure: 1, mobile frame; 2, water tank; 3, connecting hole; 4, first driving motor; 5, first rotating shaft; 6, first gear; 7, supporting rod; 8, gear ring; 9, drilling device; 91, drill pipe; 92, threaded groove; 93, first threaded connecting pipe; 94, inner ring; 95, drill bit; 96, second threaded connecting pipe; 97, first limiting groove; 10, clamping hole; 11, adjustment component; 111, third driving motor; 112, threaded rod; 113, limiting rod; 114, first folding frame; 115, second limiting groove; 116. Electric telescopic rod; 117. Limiting ring; 118. Connecting rod; 119. Touch roller; 1110. Second gear; 1111. Second folding frame; 1112. Second rotating shaft; 1113. Third gear; 1114. Fourth driving motor; 12. Coring device; 121. Support rod; 122. Fixing plate; 123. Second driving motor; 124. Winding roller; 125. Wire rope; 126. Limiting hole; 127. Lowering ring; 128. Clamp; 13. Enclosure; 14. Storage box; 15. Storage frame. DETAILED DESCRIPTION

[0030] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figure 1-Figure 6 As shown, a drilling and coring device and a drilling and coring method include a mobile frame 1, a water tank 2 is fixedly installed at the bottom of the mobile frame 1, a connecting hole 3 is opened at the top of the mobile frame 1 and located on one side of the water tank 2, a first driving motor 4 is fixedly installed at the top of the mobile frame 1 and located on one side of the connecting hole 3, one end of the output shaft of the first driving motor 4 is fixedly connected to a first rotating shaft 5 through a coupling, a first gear 6 is fixedly installed at the top of the first rotating shaft 5, support rods 7 are evenly fixedly installed at the top of the mobile frame 1 and located around the connecting hole 3, and the tops of the plurality of support rods 7 slide A gear ring 8 is connected, and a drilling device 9 is connected to the middle thread of the gear ring 8. The bottom end of the drilling device 9 passes through the connecting hole 3 and extends to the bottom of the mobile frame 1. A coring device 12 is rotatably installed on the top of the mobile frame 1 and located on one side of the gear ring 8. A clamping hole 10 is opened on the top of the mobile frame 1 and located at the bottom of the coring device 12. The bottom end of the coring device 12 extends to the inside of one of the clamping holes 10 through a clamping bolt. An adjustment component 11 is provided on the top of the mobile frame 1 and located on the other side of the gear ring 8. Both ends of the adjustment component 11 extend to both sides of the outer surface of the drilling device 9.

[0032] The drilling device 9 includes multiple drill pipes 91, a threaded groove 92 is opened in the middle of the bottom end of the drill pipe 91, a first threaded connecting pipe 93 is fixedly connected to the top end of the drill pipe 91, an inner ring 94 is fixedly connected to the bottom of the inner wall of one of the drill pipes 91, a drill bit 95 is provided at the bottom end of one of the drill pipes 91, a second threaded connecting pipe 96 is fixedly connected to the top end of the drill bit 95, and the top end thread of the second threaded connecting pipe 96 extends to the inside of the threaded groove 92, and first limiting grooves 97 are opened on both sides of the inner walls of the multiple drill pipes 91.

[0033] It should be noted that a notch is provided on one side of the mobile frame 1. When using the core drilling device to drill and detect rock strata and coal seams, the staff can stand at the notch of the mobile frame 1, which is closer to the drilling device 9, the core drilling device 12 and the adjustment component 11, making it more convenient for the staff to perform various operations when drilling and coring. The water tank 2 is installed at the bottom of the mobile frame 1, and a hose is installed at the bottom of the water tank 2. After being removed from the clamp at the bottom of the water tank 2, one end of the water pipe can be placed on one side of the drilling device 9. When the drilling device 9 drills downward, water flows downward from the outside of the drill pipe 91 to wet and cool the drill pipe 91 and the drill bit 95. At the same time, a large amount of clean water is stored in the water tank 2, and the core drilling device can also be counterweighted to ensure the stability of the position of the core drilling device when in use. The connecting hole 3 is compatible with the drilling device 9. The first drive motor 4 is installed on the mobile frame 1 by bolts and is controlled by the control switch on the mobile frame 1. It is a servo motor and can perform true reversal. An annular groove is provided at the bottom of the gear ring 8, and four support The top of the rod 7 extends together into the annular groove at the bottom of the gear ring 8. The first gear 6 is a driving wheel, meshing with the gear ring 8 to drive the gear ring 8 to rotate. A threaded groove is provided in the middle of the gear ring 8, which is threadedly connected with the drilling device 9. When the coring device 12 is above the drilling device 9 and affects the disassembly of the drill pipe 91, the top of the coring device 12 can be rotated aside and its position can be stabilized with a bolt. The adjustment component 11 cooperates with the gear ring 8 to ensure that the drilling device 9 can be stably moved down or up, and the drill pipe 9 1 is relatively large in number, but there is only one drill pipe 91 with an inner ring 94 welded inside, and this drill pipe 91 is installed together with the drill bit 95. Under the restriction of the inner ring 94, the diameter of the rock core or coal core left by the drilling is adapted to the inner diameter of the inner ring 94. The first threaded connecting pipe 93 is rotated into the thread groove 92 to connect the drill pipes 91 together. The positions of the two first limiting grooves 97 are opened correspondingly. After that, when the coring device 12 enters the drill pipe 91, the position of the bottom end of the coring device 12 can be limited.

[0034] In the present application, the coring device 12 includes a support rod 121, the top of the support rod 121 is fixedly connected to a fixed plate 122, a second drive motor 123 is fixedly installed on one side of the top of the fixed plate 122, one end of the output shaft of the second drive motor 123 is fixedly connected to a winding roller 124 through a coupling, a wire rope 125 is provided on the surface of the winding roller 124, limiting holes 126 are provided on the top of the fixed plate 122 and on both sides of the bottom of the winding roller 124, the end of the wire rope 125 extends to the bottom of the fixed plate 122 through the limiting holes 126, the bottom end of the wire rope 125 is fixedly connected to a lowering ring 127, the outer surface of the lowering ring 127 is in contact with the inner wall of the drill pipe 91 through rollers, and clamps 128 are fixedly installed around the bottom of the lower ring 127.

[0035] It should be noted that the bottom end of the support rod 121 is installed together with the top of the movable frame 1 by means of a bearing, the second drive motor 123 is connected to the external power supply through a power cord, and the wire rope 125 is wound on the winding roller 124. The wire rope 125 is restricted together in two strands, and the two strands of wire rope 125 can be separated by two limiting holes 126, so as to be tied and fixed together with the two sides of the lower moving ring 127. When the wire rope 125 is wound on the winding roller 124, it can be restricted by the upper limit ring on the fixed plate 122, which is convenient for winding the wire rope 125. The interior of the lower moving ring 127 is empty, but its metal shell is heavy. The outside of the lower moving ring 127 is avoided to be very smooth, which reduces the friction between the drill pipe 91 and the rock core and coal core. A driving device is arranged inside the lower moving ring 127, which can drive multiple clamps 128 to shrink toward the middle to clamp the rock core and coal core, and can clamp the rock core and coal core off.

[0036] In the present application, the adjustment assembly 11 includes a third drive motor 111, which is fixedly installed at the bottom of the mobile frame 1. One end of the output shaft of the third drive motor 111 is fixedly connected to a threaded rod 112 through a coupling. The top of the threaded rod 112 penetrates the mobile frame 1 and extends to the top of the mobile frame 1. A limiting rod 113 is fixedly installed at the top of the mobile frame 1 and on one side of the threaded rod 112.

[0037] In the present application, the surface of the threaded rod 112 is threadedly connected to the first folding frame 114, one side of the first folding frame 114 is slidably connected to the limiting rod 113, and second limiting grooves 115 are provided on both sides of the top of the first folding frame 114. An electric telescopic rod 116 is fixedly installed on the top of one side of the first folding frame 114, and limiting rings 117 are fixedly installed on both ends of the electric telescopic rod 116. Connecting rods 118 are arranged inside the two limiting rings 117, and one end of the two connecting rods 118 extends to one side of the first folding frame 114 through the second limiting groove 115, and one end of the two connecting rods 118 is fixedly connected to a touch roller 119, and the other end of the two connecting rods 118 is fixedly connected to a second gear 1110.

[0038] In the present application, a second folding frame 1111 is fixedly installed on one side of the bottom of the first folding frame 114, and both ends of one side of the second folding frame 1111 are rotatably connected to the second rotating shaft 1112, and one end of the two second rotating shafts 1112 is fixedly installed with a third gear 1113, the two third gears 1113 are meshed, and the two sides of the two third gears 1113 are respectively meshed with the two second gears 1110, and a fourth drive motor 1114 is fixedly installed on one side of the second folding frame 1111, and one end of the output shaft of the fourth drive motor 1114 is fixedly installed on one end of one of the second rotating shafts 1112 through a coupling.

[0039] It should be noted that the third drive motor 111 is installed at the bottom of the mobile frame 1. Like other drive motors, it is connected to the battery at the bottom of the mobile frame 1 through a power line and powered by the battery. The third drive motor 111 is also a servo motor and can be reversed. At the same time, like other drive motors, it has a self-locking function. The threaded rod 112 is arranged in parallel with the limiting rod 113. When the first folding frame 114 moves up and down along the threaded rod 112, one end is restricted by the limiting rod 113, which can ensure that the first folding frame 114 can move up and down stably. The two second limiting grooves 115 are relatively opened on the first folding frame 114. The electric telescopic rod 116 is also powered by the battery at the bottom of the mobile frame 1 through the power line, and its control switch It is installed on the mobile frame 1 and is arranged together with the control switches of other driving motors to facilitate the operation of the staff. Two limit rings 117 are welded at the two ends of the electric telescopic rod 116 to support the two connecting rods 118. The touch roller 119 is installed at the end of the connecting rod 118 by screws. The surface of the touch roller 119 is arc-shaped, which can better fit the surface of the drill pipe 91. The surface of the touch roller 119 is rough, and the friction between the touch roller 119 and the drill pipe 91 is greater, so that the drill pipe 91 can be effectively transported downward or lifted upward. When the two connecting rods 118 move toward the middle, the two connecting rods 118 can be rotated by the staff so that the two second gears 1110 can be stably meshed with the third gears 1113 on both sides.

[0040] In the present application, a baffle 13 is fixedly installed on the edge of the top of the mobile frame 1 , a storage box 14 is fixedly installed on the top of the mobile frame 1 and on one side of the gear ring 8 , and a storage frame 15 is fixedly installed on the top of the storage box 14 .

[0041] It should be noted that the enclosure 13 is fixed on the mobile frame 1. When the drill pipe 91 is placed on the mobile frame 1, the drill pipe 91 can be blocked to prevent it from rolling off the mobile frame 1. When the coring device is moved, the mobile frame 1 can be used as a handle. After the storage box 14 is opened, the rock cores and coal cores taken out from the borehole can be stored. After the drill pipe 91 and the drill bit 95 are disassembled, they can also be placed in the storage frame 15.

[0042] When the present invention is specifically implemented:

[0043] The present invention, the method for coring a hole with the device has the following specific steps:

[0044] Step 1: Use the drilling and coring device to drill holes in the coal mine, so as to investigate the conditions of the water layer, rock layer and coal layer in the coal mine. When using the drilling and coring device to drill holes in the rock layer and coal layer, first take out the drill pipes 91 and the drill bits 95 from the storage frame 15 and place them on the mobile frame 1, then rotate the inner ring 94 of the drilling device 9 with the inner ring 94 fixed inside to the left and install it in the gear ring 8, and then continue to rotate the drill pipe 91 downward until the bottom end of the drill pipe 91 extends to the bottom of the mobile frame 1 through the connecting hole 3 on the mobile frame 1, and then rely on the second threaded connection pipe on the drill bit 95 from the bottom of the mobile frame 1. 96 is rotatably installed in the threaded groove 92 at the bottom end of the drill pipe 91, and then the adjustment component 11 is controlled by the control switch on the mobile frame 1 to adjust the position. When the adjustment component 11 is adjusted, the third drive motor 111 drives the threaded rod 112 to rotate. Under the restriction of the limiting rod 113, the first folding frame 114 can move downward along the threaded rod 112. When the first folding frame 114 moves down to a lower position, the third drive motor 111 is paused and locked, the electric telescopic rod 116 can be retracted, and the two connecting rods 118 can move toward the middle along the two second limiting grooves 115. At this time, the staff can turn The two connecting rods 118 are moved so that the two second gears 1110 can mesh with the two third gears 1113 respectively. After the two second gears 1110 and the two third gears 1113 are accurately meshed together, the first drive motor 4 and the fourth drive motor 1114 can be started. The first drive motor 4 drives the drill pipe 91 to rotate by means of the gear ring 8, and the fourth drive motor 1114 can drive the two contact rollers 119 to rotate in the opposite direction by means of the third gear 1113 and the second gear 1110, so that the drill pipe 91 rotates downward all the time to drill the rock layer and coal layer of the coal mine. When the top of a drill pipe 91 is about to move to When the two contact rollers 119 are at the same position, the fourth drive motor 1114 is suspended. At this time, the staff can take another drill pipe 91 from the mobile frame 1, align the thread groove 92 at the bottom end thereof with the first threaded connection pipe 93 on the lower drill pipe 91, and the two drill pipes 91 can be threadedly connected together as the drill pipe 91 continues to rotate. When the two drill pipes 91 are stably threadedly connected together, the first limit grooves 97 inside the two drill pipes 91 are aligned, and then the fourth drive motor 1114 is started again, and the two contact rollers 119 rotate downward together, so that the drill pipe 91 can continue to drill deeper into the rock layer and coal seam downward;

[0045] Step 2. When the staff increases the drill pipe 91 to drill deeper into the rock layer or coal seam, when a drill pipe 91 is completely moved down into the rock layer or coal seam, the first drive motor 4 and the fourth drive motor 1114 need to be paused, and then the staff can remove the clamping bolt at the bottom of the coring device 12 from a clamping hole 10, and rotate the coring device 12 to rotate the fixing plate 122 to the top of the drilling device 9, and then control the second drive motor 123 to start through the control switch on the mobile frame 1, and the wire rope 125 wound on the winding roller 124 is loosened, and the lower moving ring 127 is heavy and can move downward with the downward moving wire rope 125. When the lower moving ring 127 and the clamping claw 128 are about to move down to the drill pipe 91, the staff can adjust the position of the drill pipe 91 so that the positions of the two first limit grooves 97 on both sides of the inner wall of the drill pipe 91 are aligned with the lower moving ring 127. The position of the limit block on the outside of the ring 127 corresponds to that of the lower ring 127. When the lower ring 127 moves downward, it continues to move downward from the gap between the inner wall of the drill pipe 91 and the rock core or coal core. After the lower ring 127 moves downward to a suitable depth, the second drive motor 123 pauses, and the device inside the lower ring 127 controls the clamping jaws 128 to tighten toward the middle, clamp the rock core or coal core and tighten toward the middle. Since the bottom of the clamping jaws 128 becomes thinner and thinner, the rock core or coal core can be clamped off from here. Then the second drive motor 123 restarts, and the wire rope 125 is wound up by the winding roller 124, so that the lower ring 127 can be pulled up, thereby pulling the coal core or rock core up from the inside of the drill pipe 91. After taking out a section of the coal core or rock core, the above operation can be repeated, and the drill pipe 91 is continued to be added to drill downward, and then the rock core or coal core left in the center of the borehole is taken out.

[0046] Step three, when using the coring device to drill and coring rock or coal seams, the staff can remove the water pipe stuck at the bottom of the water tank 2, and point one end of the water pipe toward the point where the drill pipe 91 contacts the ground. When the drill pipe 91 rotates downward, the water inside the water tank 2 can flow out evenly through the water pipe, thereby wetting and cooling the drill pipe 91 and the bottom drill bit 95. During the use of the coring device, the water in the water tank 2 can increase the counterweight of the entire device. After the coring device 12 takes out the drilled rock core or coal core from the inside of the drill pipe 91, the storage box 14 can be opened to store the rock cores or coal cores one by one in the storage box 14.

[0047] By opening the connecting hole 3 on the mobile frame 1, the first driving motor 4, the first gear 6 and the gear ring 8 cooperate to drive the drill pipe 91 and the drill bit 95 to rotate, and after the adjustment component 11 is adjusted, it can contact the drill pipe 91 to transport the drill pipe 91 downward, and at the same time, the first threaded connecting pipe 93 at one end of the drill pipe 91 is threadedly connected with the thread groove 92 at the other end of the other drill pipe 91, so that the coal seams and rock strata at different depths in the coal mine can be drilled, so as to obtain coal cores and rock cores at different depths, which is convenient for the staff to inspect the coal mine conditions;

[0048] By setting an inner ring 94 inside one of the drill pipes 91, a certain space is created between the coal core or rock core obtained by drilling and the inner wall of the drill pipe 91. After the coring device 12 enters the drill pipe 91 downward, the coal core or rock core can be clamped and pulled up by the clamping claws 128. In this process, the drill pipe 91 does not need to move upward to bring up the coal core or rock core, so as to prevent the drill pipe 91 from leaving the borehole, causing some gravel and carbon fragments around the borehole to fall into the borehole, resulting in blockage of the borehole, which affects the drill pipe 91 to continue to coring the rock layer and coal layer at a depth along the borehole.

[0049] When using the coring device 12 to grab the coal core or rock core drilled out of the drill pipe 91, if the length of the coal core or the rock core is very long, the coal core or the rock core can be adjusted by changing the position of the first folding frame 114 in the adjustment component 11, and then adjusting the distance between the two side contact rollers 119. After the two contact rollers 119 contact the rock core or coal core, the coring device 12 moves to one side, and the adjustment component 11 can be used to take out the very long rock core or coal core from the inside of the drill pipe 91.

[0050] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A drilling and coring device, comprising a mobile frame (1), a water tank (2) being fixedly mounted at the bottom of the mobile frame (1), a connecting hole (3) being provided at the top of the mobile frame (1) and located on one side of the water tank (2), characterized in that: A first driving motor (4) is fixedly installed on the top of the moving frame (1) and located on one side of the connecting hole (3); one end of the output shaft of the first driving motor (4) is fixedly connected to a first rotating shaft (5) via a coupling; a first gear (6) is fixedly installed on the top of the first rotating shaft (5); support rods (7) are evenly fixedly installed on the top of the moving frame (1) and located around the connecting hole (3); a plurality of support rods (7) are slidably connected to the tops of the support rods (7); a drilling device (9) is threadedly connected to the middle of the gear ring (8); and the bottom end of the drilling device (9) is threadedly connected to the gear ring (8). A connecting hole (3) is formed and extends to the bottom of the movable frame (1); a coring device (12) is rotatably mounted at the top of the movable frame (1) and located on one side of the gear ring (8); a clamping hole (10) is provided at the top of the movable frame (1) and located on the bottom of the coring device (12); the bottom end of the coring device (12) extends to the inside of one of the clamping holes (10) through a clamping bolt; an adjustment component (11) is provided at the top of the movable frame (1) and located on the other side of the gear ring (8); and both ends of the adjustment component (11) extend to both sides of the outer surface of the drilling device (9); The drilling device (9) comprises a plurality of drill pipes (91), a thread groove (92) is provided in the middle of the bottom end of the drill pipe (91), a first threaded connection pipe (93) is fixedly connected to the top end of the drill pipe (91), an inner ring (94) is fixedly connected to the bottom of the inner wall of one of the drill pipes (91), a drill bit (95) is provided at the bottom end of one of the drill pipes (91), a second threaded connection pipe (96) is fixedly connected to the top end of the drill bit (95), the top end of the second threaded connection pipe (96) is threadedly extended to the inside of the thread groove (92), and first limiting grooves (97) are provided on both sides of the inner walls of the plurality of drill pipes (91).

2. A coring device according to claim 1, characterized in that: The coring device (12) comprises a support rod (121), the top end of the support rod (121) is fixedly connected to a fixing plate (122), a second drive motor (123) is fixedly installed on one side of the top of the fixing plate (122), one end of the output shaft of the second drive motor (123) is fixedly connected to a winding roller (124) via a coupling, a steel wire rope (125) is provided on the surface of the winding roller (124), and the top of the fixing plate (122) and the fixing plate (122) are provided with a steel wire rope (125). Limiting holes (126) are provided on both sides of the bottom of the winding roller (124), and the end of the steel wire rope (125) extends to the bottom of the fixed plate (122) through the limiting holes (126). The bottom end of the steel wire rope (125) is fixedly connected with a lower moving ring (127), and the outer surface of the lower moving ring (127) is in contact with the inner wall of the drill pipe (91) through rollers. Clamps (128) are fixedly installed around the bottom of the lower moving ring (127).

3. A coring device according to claim 2, characterized in that: The adjustment assembly (11) comprises a third drive motor (111), the third drive motor (111) is fixedly mounted on the bottom of the mobile frame (1), one end of the output shaft of the third drive motor (111) is fixedly connected to a threaded rod (112) via a coupling, the top end of the threaded rod (112) passes through the mobile frame (1) and extends to the top of the mobile frame (1), and a limiting rod (113) is fixedly mounted on the top of the mobile frame (1) and located on one side of the threaded rod (112).

4. A coring device according to claim 3, characterized in that: The surface of the threaded rod (112) is threadedly connected to a first folding frame (114); one side of the first folding frame (114) is slidably connected to the limiting rod (113); second limiting grooves (115) are provided on both sides of the top of the first folding frame (114); an electric telescopic rod (116) is fixedly installed on the top of one side of the first folding frame (114); limiting rings (117) are fixedly installed at both ends of the electric telescopic rod (116); connecting rods (118) are provided inside the two limiting rings (117); one end of the two connecting rods (118) extends to one side of the first folding frame (114) through the second limiting groove (115); one end of the two connecting rods (118) is fixedly connected to a touch roller (119); and the other end of the two connecting rods (118) is fixedly connected to a second gear (1110).

5. A coring device according to claim 4, characterized in that: A second folding frame (1111) is fixedly mounted on one side of the bottom of the first folding frame (114); both ends of one side of the second folding frame (1111) are rotatably connected to second rotating shafts (1112); one end of two second rotating shafts (1112) are fixedly mounted with third gears (1113); the two third gears (1113) are meshed; both sides of the two third gears (1113) are respectively meshed with the two second gears (1110); a fourth driving motor (1114) is fixedly mounted on one side of the second folding frame (1111); one end of the output shaft of the fourth driving motor (1114) is fixedly mounted to one end of one of the second rotating shafts (1112) via a coupling.

6. A coring device according to claim 1, characterized in that: A fence (13) is fixedly installed on the edge of the top of the mobile frame (1), a storage box (14) is fixedly installed on the top of the mobile frame (1) and on one side of the gear ring (8), and a storage frame (15) is fixedly installed on the top of the storage box (14).

7. A coring device according to any one of claims 1 to 6, characterized in that: The specific steps of the drilling and coring method of the device are as follows: Step 1: When using a drilling and coring device to drill a rock layer or a coal seam, firstly, take out the drill pipes (91) and the drill bits (95) from the storage frame (15) and place them on the mobile frame (1), then rotate the inner ring (94) of the drilling device (9) with the inner ring (94) fixed therein and install it in the gear ring (8), and then continue to rotate the drill pipe (91) downward until the bottom end of the drill pipe (91) extends to the bottom of the mobile frame (1) through the connecting hole (3) on the mobile frame (1), and then rotate the second threaded connecting pipe (96) on the drill bit (95) from the bottom of the mobile frame (1) to the threaded groove (92) at the bottom end of the drill pipe (91). The control switch on the movable frame (1) is then used to control the adjustment component (11) to adjust its position. When the adjustment component (11) is adjusted, the third drive motor (111) drives the threaded rod (112) to rotate. Under the restriction of the restriction rod (113), the first folding frame (114) moves downward along the threaded rod (112). When the first folding frame (114) moves downward to a lower position, the third drive motor (111) is paused and locked, the electric telescopic rod (116) is retracted, and the two connecting rods (118) move toward the middle along the two second limiting grooves (115). At this time, the staff rotates the two connecting rods (118) to make the two second gears The first drive motor (4) and the fourth drive motor (1114) are respectively meshed with the two third gears (1113). After the two second gears (1110) and the two third gears (113) are accurately meshed together, the first drive motor (4) and the fourth drive motor (1114) are started. The first drive motor (4) drives the drill pipe (91) to rotate by means of the gear ring (8), while the fourth drive motor (1114) drives the two contact rollers (119) to rotate in the opposite direction by means of the third gear (1113) and the second gear (1110), so that the drill pipe (91) rotates downward continuously to drill holes in the rock layer and coal layer of the coal mine. When the top of a drill pipe (91) is about to move to the two contact rollers (119), When the fourth driving motor (1114) is stopped, the staff member takes another drill pipe (91) from the mobile frame (1), aligns the thread groove (92) at the bottom end thereof with the first threaded connection pipe (93) on the lower drill pipe (91), and while the drill pipe (91) continues to rotate, the two drill pipes (91) are threadedly connected together. When the two drill pipes (91) are stably threadedly connected together, the first limit grooves (97) inside the two drill pipes (91) are aligned, and then the fourth driving motor (1114) is started again, and the two contact rollers (119) rotate downward together, so that the drill pipe (91) continues to drill deeper into the rock layer or coal layer. Step 2: When the staff adds a drill pipe (91) to drill deeper into the rock layer or coal seam, when a drill pipe (91) is completely moved down into the rock layer or coal seam, the first drive motor (4) and the fourth drive motor (1114) need to be paused, and then the staff removes the clamping bolt at the bottom of the coring device (12) from a clamping hole (10), and rotates the coring device (12) to rotate the fixing plate (122) to the top of the drilling device (9), and then The control switch on the moving frame (1) controls the second driving motor (123) to start, and the steel wire rope (125) wound on the winding roller (124) is loosened. Since the weight of the lower moving ring (127) is large, the steel wire rope (125) moves downward continuously. When the lower moving ring (127) and the clamping claw (128) are about to move downward to the drill pipe (91), the staff adjusts the position of the drill pipe (91) so that the two first limit grooves (91) on both sides of the inner wall of the drill pipe (91) are The position of the lower ring (127) corresponds to the position of the limit block outside the lower ring (127). When the lower ring (127) moves downward, it continues to move downward from the gap between the inner wall of the drill pipe (91) and the rock core or coal core. After the lower ring (127) moves downward to a suitable depth, the second drive motor (123) is paused, and the device inside the lower ring (127) controls the clamping jaws (128) to tighten toward the middle, clamping the rock core or coal core and tightening toward the middle. 8) The bottom end becomes thinner and thinner, and the rock core or coal core is cut off from here. Then, the second drive motor (123) is restarted, and the steel wire rope (125) is wound up by the winding roller (124), and the lower moving ring (127) is pulled up, thereby pulling the coal core or rock core up from the inside of the drill pipe (91). After a section of the coal core or rock core is taken out, the above operation is repeated, and the drill pipe (91) is continued to be added downward to drill a hole, and then the rock core or coal core left in the center of the hole is taken out; Step 3: When using the coring device to drill and coring a rock layer or a coal layer, the staff removes the water pipe stuck at the bottom of the water tank (2) and directs one end of the water pipe toward the point where the drill pipe (91) contacts the ground. When the drill pipe (91) rotates downward, the water in the water tank (2) flows out evenly through the water pipe, thereby wetting and cooling the drill pipe (91) and the bottom drill bit (95). During the use of the coring device, the water in the water tank (2) increases the weight of the entire device. After the coring device (12) takes out the drilled rock core or coal core from the inside of the drill pipe (91), the storage box (14) is opened and the rock cores or coal cores are stored in the storage box (14).

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