Hole drilling device for gas extraction

Abstract

The invention relates to the technical field of hole drilling devices, and discloses a hole drilling device for gas extraction, the hole drilling device for gas extraction comprises a supporting hydraulic cylinder, the piston end of the supporting hydraulic cylinder is fixedly provided with a rack, and the rack is provided with a hole drilling assembly. According to the hole drilling device for gas extraction, by arranging the hole drilling assembly, the rack can move up and down in cooperation with a supporting hydraulic cylinder, when an inclined hydraulic cylinder is started, a hinged block is matched to enable a swing frame to vertically swing, a movable block synchronously rotates on a fixed block, and the movable block is matched with a supporting block to support the swing frame in the horizontal state; when the asynchronous motor is started, the drilling motor is made to rotate, when the drilling motor is started, the drilling rod is made to rotate for drilling, and therefore the drilling rod can face more inclined directions, and then inclined extraction drilling can be better carried out. The movable frame can axially move in cooperation with the threaded block and the sliding rail, the sliding sleeve synchronously slides outside the sliding rod, and when the asynchronous motor is started, the drilling motor is made to rotate, and when the drilling motor is started, the drilling rod is made to rotate for drilling.

Description

Technical Field

[0001] The invention relates to the technical field of hole drilling devices, in particular to a hole drilling device for gas extraction. Background Art

[0002] As an associated gas in the coal mining process, the efficient extraction of gas is of great significance to ensuring the safe production of coal mines and realizing the effective utilization of gas resources. my country is rich in coal resources, but the gas occurrence conditions in coal seams are extremely complex. Many coal seams in mining show characteristics such as coal seam fragmentation, poor stability, high gas content and high pressure. For example, in some high-gas mines, the gas content can reach tens of cubic meters per ton, and the pressure exceeds several MPa. Drilling operations are the key link in gas extraction in such coal seams.

[0003] As the mining depth of coal mines continues to increase, the gas pressure and content increase with depth, which puts higher requirements on the sealing and stability of the borehole. Gas extraction is not only related to the life safety of underground workers, but the effective extraction and utilization of gas can also reduce coal mine energy consumption, realize the secondary utilization of resources, and conform to the concept of sustainable development.

[0004] In the current field of gas extraction, some devices use rigid drill rods, such as dual-channel rigid drill rods, which use dual channels to achieve internal slag discharge. In steeply inclined coal seams, under the combined effects of gravity and the inclination angle of the coal seam, the drilling trajectory of the drill rod is difficult to accurately control, and drilling deviation is prone to occur. It is not possible to perform oblique drilling well to meet the extraction drilling needs in different scenarios. In addition, it is not possible to make good use of inert gas to form an inert gas atmosphere, isolate the oxygen in the area as much as possible, and avoid explosion due to open flames or high temperatures when gas is extracted. The safety of the drilling process is guaranteed from the root, and the drilling efficiency and safety need to be improved. In view of this, we propose a gas extraction drilling device. Summary of the Invention

[0005] The object of the present invention is to provide a gas extraction hole drilling device to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A gas extraction hole drilling device includes a supporting hydraulic cylinder, a piston end of the supporting hydraulic cylinder is fixedly mounted on a frame, and a drilling assembly is provided on the frame. The drilling assembly includes:

[0008] An oblique hydraulic cylinder, a fixed end of the oblique hydraulic cylinder is hingedly mounted on the frame, one end of a hinged block is hingedly mounted on the piston end of the oblique hydraulic cylinder, the other end of the hinged block is hingedly mounted on one end of a swing frame, a fixed block is fixedly mounted on the top of the frame, one end of a moving block is mounted on the other end of the swing frame, and the other end of the moving block is hingedly mounted on the fixed block;

[0009] A support block is fixedly installed on the top of one end of the frame away from the fixed block, and the support block is located just below the swing frame. An asynchronous motor is fixedly installed on the outer wall of the swing frame, and a threaded rod is fixedly installed on the output end of the asynchronous motor. Both ends of the threaded rod are rotatably installed inside the swing frame through bearings, and a threaded block is threadedly installed on the threaded rod. A slide rail is fixedly installed on the outer wall of the swing frame, and a mobile frame is slidably installed inside the slide rail, and the outer wall of one end of the mobile frame is fixedly connected to the outer wall of the threaded block;

[0010] An asynchronous motor is fixedly installed at the bottom center of the mobile frame, the top of the asynchronous motor output shaft is fixedly connected to the bottom center of the drilling motor, and a drill rod is fixedly installed at the output end of the drilling motor.

[0011] In a further solution, four groups of supporting hydraulic cylinders are provided, and the supporting hydraulic cylinders are respectively located at the four corners of the frame, so that the frame moves up and down.

[0012] In a further solution, a slide rod is fixedly installed on the side of the swing frame away from the asynchronous motor, and a sliding sleeve is fixedly installed on the outer wall of the other end of the movable frame. The sliding sleeve is slidably installed on the outside of the slide rod, so that the axial movement of the movable frame is more stable.

[0013] In a further solution, a protection component is provided on the drilling motor, and the protection component includes an air supply device. The air supply device is fixedly installed on the outer wall of one end of the drilling motor, and an air inlet is provided at the input end of the air supply device. The air inlet is used to fill inert gas into the interior of the air supply device.

[0014] In a further solution, a protective cover is fixedly installed on the outer wall of one end of the drilling motor close to the drill rod, the drill rod passes through the protective cover, and an air outlet pipe is fixedly installed between the inside of the side wall of the protective cover and the output end of the gas supply equipment. A vertical groove is opened at one end of the drill rod close to the drilling motor, and multiple groups of vertical grooves are provided. The multiple groups of vertical grooves are arranged in an equally spaced circular array with the center of the circular cross-section of the drill rod as the center of the array, so that the range of exhausting inert gas is wider.

[0015] In a further solution, an outer cylinder is fixedly mounted on the outer wall of the protective cover, an inner cylinder is slidably mounted inside the outer cylinder, and spring rods are fixedly mounted between the inner part of the arc-shaped side wall of the outer cylinder and the outer wall of the inner cylinder. The spring rods are provided in multiple groups, and the multiple groups of spring rods are arranged in an evenly spaced circular array with the center of the circular cross-section of the outer cylinder as the array center, so that the movement of the inner cylinder is more stable.

[0016] In a further solution, an auxiliary component is provided on the outside of the drill pipe, and the auxiliary component includes a fixing ring, a fixing ring is fixedly installed on the arc-shaped outer wall of the outer cylinder, a charging and suction dual-purpose pump is fixedly installed on the outer wall of the fixing ring, a secondary pipe is fixedly installed on one end of the charging and suction dual-purpose pump, and the other end of the charging and suction dual-purpose pump is fixedly connected to one end of the main pipe, a first annular sleeve is fixedly installed on the other end of the main pipe, and a main solenoid valve is provided on the main pipe.

[0017] In a further solution, one end of an auxiliary tube is fixedly installed inside the arcuate side wall of the first annular sleeve, and a fixed tube is fixedly installed on the other end of the auxiliary tube. One end of the fixed tube is fixedly installed inside the arcuate side wall of the outer tube, and the fixed tube passes through the arcuate side wall of the inner tube. The other end of the fixed tube is slidably installed with one end of a movable tube through a sealed bearing, and an expansion airbag is fixedly installed on the other end of the movable tube. The outside of the expansion airbag is attached to the outside of the end of the inner tube away from the drilling motor. There are multiple groups of the auxiliary tubes, fixed tubes, movable tubes and expansion airbags, and the multiple groups of the auxiliary tubes, fixed tubes, movable tubes and expansion airbags are staggered with multiple groups of spring rods in an equidistant circular array to achieve better sealing.

[0018] In a further solution, a cleaning assembly is further provided on the outside of the drill rod, and the cleaning assembly includes a second annular sleeve, and a second annular sleeve is fixedly installed on the outside of the end of the inner tube away from the drilling motor, and a discharge pipe is fixedly installed inside the arc-shaped side wall of the second annular sleeve, and the discharge pipe passes through the inner tube, and a discharge pump input end is also fixedly installed inside the arc-shaped side wall of the second annular sleeve, and the discharge pump output end is fixedly connected to one end of a bent pipe, and a discharge solenoid valve is provided on the bent pipe. A hose is fixedly installed on the other end of the bent pipe for better discharge.

[0019] In a further solution, the discharge pipes are provided in multiple groups, and the multiple groups of discharge pipes are arranged in a staggered and evenly spaced circular array with multiple groups of expansion airbags. The bent pipes, discharge pumps, discharge solenoid valves and hoses are provided in multiple groups, so that the discharge speed is faster.

[0020] Compared with the prior art, the present invention provides a gas extraction hole drilling device with the following beneficial effects:

[0021] 1. The gas extraction adopts a hole drilling device. In order to better carry out oblique extraction and drilling, a drilling assembly is set up, and the frame can be moved up and down in conjunction with the supporting hydraulic cylinder. When the oblique hydraulic cylinder is started, the hinge block is cooperated to make the swing frame swing vertically, so that the moving block rotates synchronously on the fixed block, and the support block can support the horizontal swing frame. When the asynchronous motor is started, the threaded rod rotates, and the threaded block and the slide rail are cooperated to make the moving frame move axially, and the sliding sleeve slides synchronously on the outside of the slide rod. When the asynchronous motor is started, the drilling motor rotates. When the drilling motor is started, the drill rod rotates to drill, so that the drill rod can face more oblique directions, and then better carry out oblique extraction and drilling.

[0022] 2. The gas extraction adopts a hole drilling device. In order to make the drilling process safer, a protective component is set. As the mobile frame moves, the inner cylinder approaches the mine wall to be drilled, so that the inner cylinder moves inside the outer cylinder, and the spring rod is compressed and deformed to store elastic potential energy, which is convenient for completing the subsequent resetting of the inner cylinder. Before the drill rod starts working, the gas supply equipment is started, and the air inlet is coordinated to prepare the air. The inert gas is transported to the vertical groove through the protective cover and the air outlet pipe, so that the inert gas is diffused around the drill rod to avoid combustion and explosion at the moment of gas extraction, thereby making the drilling process safer.

[0023] 3. The gas extraction adopts a hole drilling device. In order to make the protection effect of the protection component better, an auxiliary component is set. When the inner tube is close to the mine wall to be drilled, the charging and suction dual-purpose pump on the fixed ring and the main solenoid valve on the main pipe are started, so that the fixed tube is inflated through the secondary tube, the first annular sleeve, the main pipe and the auxiliary tube, and the expansion airbag is inflated through the mobile tube. After the volume of the expansion airbag is increased, the main solenoid valve is closed, so that multiple groups of expansion airbags are squeezed against each other, which better adapts to the uneven mine wall to be drilled, makes the sealing better, reduces the leakage of inert gas, and avoids the splashing of drilling debris. As the mobile frame moves, the inner tube moves inside the outer tube, so that the mobile tube moves synchronously inside the fixed tube. After drilling is completed, the gas inside the expansion airbag can also be extracted through the charging and suction dual-purpose pump. In summary, the protection effect of the protection component can be better.

[0024] 4. The gas extraction device adopts a hole drilling device. In order to make the device run better, a cleaning component is set. When the drill rod stops working, the discharge pump and the discharge solenoid valve are started, so that the crushed stone produced by the drilling inside the inner tube is sucked into the second annular sleeve through the discharge pipe, and then discharged to the hose through the bend pipe, and finally discharged to the ground, thereby avoiding the splashing of crushed stone to affect the drilling hole, and then making the device run better. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2This is a schematic diagram of the overall structure of the present invention from another perspective;

[0027] Figure 3 For the present invention Figure 2 Schematic diagram of the enlarged structure of area A in the middle;

[0028] Figure 4 This is a schematic diagram of the connection of some structures of the present invention;

[0029] Figure 5 For the present invention Figure 4 Schematic diagram of the enlarged structure of the middle B area;

[0030] Figure 6 This is a schematic diagram of the connection between the mobile frame and some structures of the present invention;

[0031] Figure 7 This is a schematic diagram of the connection of the mobile frame and some structures of the present invention from another perspective;

[0032] Figure 8 This is a schematic diagram of the outer cylinder and some structural connections of the present invention;

[0033] Figure 9 This is a schematic diagram of the structural connection of the auxiliary components of the present invention;

[0034] Figure 10 This is a schematic cross-sectional view of the outer cylinder of the present invention;

[0035] Figure 11 It is a schematic cross-sectional view of the inner cylinder of the present invention.

[0036] Description of Figure Numbers:

[0037] 1. Support hydraulic cylinder; 2. Frame;

[0038] 3. Drilling assembly; 31. Oblique hydraulic cylinder; 32. Articulated block; 33. Swing frame; 34. Fixed block; 35. Moving block; 36. Support block; 37. Asynchronous motor; 38. Threaded rod; 39. Threaded block; 310. Slide rail; 311. Moving frame; 312. Asynchronous motor; 313. Drilling motor; 314. Drill rod; 315. Slide rod; 316. Sliding sleeve;

[0039] 4. Protective assembly; 41. Air supply device; 42. Air inlet; 43. Protective cover; 44. Air outlet pipe; 45. Vertical slot; 46. Outer cylinder; 47. Inner cylinder; 48. Spring rod;

[0040] 5. Auxiliary components; 51. Fixed ring; 52. Inflating and suctioning pump; 53. Secondary pipe; 54. First annular sleeve; 55. Main pipe; 56. Main solenoid valve; 57. Auxiliary pipe; 58. Fixed pipe; 59. Moving pipe; 510. Inflatable airbag;

[0041] 6. Cleaning assembly; 61. Second annular sleeve; 62. Discharge pipe; 63. Elbow; 64. Discharge pump; 65. Discharge solenoid valve; 66. Hose. DETAILED DESCRIPTION

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0043] In this application, the term "upper" indicates an orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. This is primarily for the purpose of better describing this application and its embodiments, and is not intended to limit the indicated devices, elements, or components to a specific orientation, or to be constructed and operated in a specific orientation. Furthermore, the term "upper" may also be used in certain circumstances to indicate a dependency or connection relationship. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0044] See also Figures 1-11 , the present invention provides a technical solution:

[0045] A gas extraction hole drilling device includes a supporting hydraulic cylinder 1, the piston end of the supporting hydraulic cylinder 1 is fixedly mounted on a frame 2, and four groups of supporting hydraulic cylinders 1 are provided, and the supporting hydraulic cylinders 1 are respectively located at the four corners of the frame 2, so that the frame 2 moves up and down.

[0046] In one embodiment of the present invention, a drilling assembly 3 is provided on the frame 2, and the drilling assembly 3 includes an oblique hydraulic cylinder 31. The fixed end of the oblique hydraulic cylinder 31 is hingedly installed on the frame 2, and the piston end of the oblique hydraulic cylinder 31 is hingedly installed with one end of a hinge block 32, and the other end of the hinge block 32 is hingedly installed on one end of a swing frame 33. A fixed block 34 is fixedly installed on the top of the frame 2, and one end of a moving block 35 is installed on the other end of the swing frame 33. The other end of the moving block 35 is hingedly installed on the fixed block 34. A support block 36 is fixedly installed on the top of the end of the frame 2 away from the fixed block 34. The support block 36 is located directly below the swing frame 33. An asynchronous motor 37 is fixedly installed on the outer wall of the swing frame 33. A threaded rod 38 is fixedly installed on the output end of the asynchronous motor 37. Both ends of the threaded rod 38 are passed through The bearing part is rotatably installed inside the swing frame 33, and a threaded block 39 is threadedly installed on the threaded rod 38. A slide rail 310 is fixedly installed on the outer wall of the swing frame 33, and a movable frame 311 is slidably installed inside the slide rail 310. The outer wall of one end of the movable frame 311 is fixedly connected to the outer wall of the threaded block 39, and an asynchronous motor 312 is fixedly installed at the bottom center of the movable frame 311. The top of the output shaft of the asynchronous motor 312 is fixedly connected to the bottom center of the drilling motor 313, and a drill rod 314 is fixedly installed at the output end of the drilling motor 313. In addition, a slide rod 315 is fixedly installed on the side of the swing frame 33 away from the asynchronous motor 37, and a sliding sleeve 316 is fixedly installed on the outer wall of the other end of the movable frame 311. The sliding sleeve 316 is slidably installed on the outside of the sliding rod 315, so that the axial movement of the movable frame 311 is more stable.

[0047] When the present embodiment is used, in order to achieve better inclined extraction drilling, first, four groups of supporting hydraulic cylinders 1 located at the four corners of the frame 2 work together, and their piston ends are synchronously extended and retracted to drive the frame 2 to move up and down, so as to adjust the overall height of the device to a suitable range matching the position to be drilled, and start the inclined hydraulic cylinder 31, whose fixed end is hinged to the frame 2, and the piston end is movably connected with one end of the swing frame 33 through the hinge block 32. Under the action of the hydraulic driving force, the swing frame 33 is driven to swing vertically around the hinge point of the fixed block 34 and the movable block 35, and the swing angle can be flexibly adjusted according to the drilling inclination requirement. When the swing frame 33 is in a horizontal state, the support block 36 at the top of one end of the frame 2 away from the fixed block 34 is in close contact with the bottom of the swing frame 33, forming a stable support, thereby preventing the swing frame 33 from sinking due to its own weight and the load. After swinging to the target angle, the asynchronous motor 37 is started, and its output end drives the threaded rod 38 to move on the swing frame 3 The inner portion of the movable frame 311 is stably rotated by the bearing member 316, and the threaded block 39 moves axially along the rod body under the threaded transmission action of the threaded rod 38. At the same time, the movable frame 311 fixedly connected to the outer wall of the threaded block 39 moves axially synchronously along the slide rail 310, and the sliding sleeve 316 on the outer wall of the other end of the movable frame 311 slides outside the slide rod 315. The two cooperate to limit the movement trajectory of the movable frame 311, ensuring that there is no deviation or shaking during its movement. When the asynchronous motor 312 is started, its output shaft drives the drilling motor 313 to rotate, so that the initial orientation of the drill rod 314 meets the drilling requirements. Finally, the drilling motor 313 is started, and its output end drives the drill rod 314 to rotate at high speed to complete the oblique drilling operation. Through the multi-dimensional action coordination of the support hydraulic cylinder 1 height adjustment, the angular swing of the oblique hydraulic cylinder 31 and the axial feed of the movable frame 311, the drill rod 314 can cover the oblique upward or oblique downward direction, meeting the extraction drilling requirements in different scenarios.

[0048] In one embodiment of the present invention, a protective component 4 is provided on the drilling motor 313, and the protective component 4 includes an air supply device 41. The air supply device 41 is fixedly installed on the outer wall of one end of the drilling motor 313, and an air inlet 42 is provided at the input end of the air supply device 41. The air inlet 42 is used to fill the air supply device 41 with inert gas. In addition, a protective cover 43 is fixedly installed on the outer wall of one end of the drilling motor 313 near the drill rod 314, and the drill rod 314 passes through the protective cover 43. An air outlet pipe 44 is fixedly installed between the inner side wall of the protective cover 43 and the output end of the air supply device 41, and the drill rod 314 is close to the drilling motor 3 One end of 13 is provided with a vertical groove 45, and there are three groups of vertical grooves 45. The three groups of vertical grooves 45 are arranged with the center of the circular cross-section of the drill rod 314 as the array center, and the circumferential array is evenly spaced, so that the range of exhausting inert gas is wider. In addition, an outer cylinder 46 is fixedly installed on the outer wall of the protective cover 43, and an inner cylinder 47 is slidably installed inside the outer cylinder 46. A spring rod 48 is fixedly installed between the inner side wall of the arc-shaped side wall of the outer cylinder 46 and the outer wall of the inner cylinder 47. There are five groups of spring rods 48, and the five groups of spring rods 48 are arranged with the center of the circular cross-section of the outer cylinder 46 as the array center, and the circumferential array is evenly spaced, so that the movement of the inner cylinder 47 is more stable.

[0049] When this embodiment is used, in order to improve the safety of the drilling process, when the mobile frame 311 moves toward the mine wall to be drilled, the inner cylinder 47 gradually approaches the mine wall surface before the drill rod 314, and the reaction force of the mine wall causes the inner cylinder 47 to slide into the outer cylinder 46. At this time, the five groups of spring rods 48 with the center of the circular cross section as the array center and the circumferential array with equal spacing between the inner side wall of the outer cylinder 46 and the outer wall of the inner cylinder 47 are squeezed and compressed to store elastic potential energy. When the drilling is completed, the spring rods 48 release the potential energy to drive the inner cylinder 47 to automatically reset. Before the drill rod 314 works, the air supply device 41 is started. The air inlet 42 is used to fill the inside of the equipment with inert gas for gas preparation. The inert gas is transported to the protective cover 43 through the air outlet pipe 44. The protective cover 43 guides the gas to the drill rod 314 at one end near the drill rod 314. The drill rod 314 is provided with three groups of vertical grooves 45 with the center of the circular cross section as the array center and the circumferential array with equal spacing. The inert gas is evenly released into the drilling area around the drill rod 314 through the vertical grooves 45 to form an inert gas atmosphere, isolate the oxygen in the area as much as possible, and avoid explosion due to open flame or high temperature when the gas is extracted, thereby ensuring the safety of the drilling process from the root.

[0050] In one embodiment of the present invention, an auxiliary component 5 is provided on the outside of the drill rod 314, and the auxiliary component 5 includes a fixing ring 51. The fixing ring 51 is fixedly installed on the arc-shaped outer wall of the outer cylinder 46, and a charging and suction dual-purpose pump 52 is fixedly installed on the outer wall of the fixing ring 51. A secondary pipe 53 is fixedly installed at one end of the charging and suction dual-purpose pump 52, and the other end of the charging and suction dual-purpose pump 52 is fixedly connected to one end of a main pipe 55. A first annular sleeve 54 is fixedly installed at the other end of the main pipe 55, and a main solenoid valve 56 is provided on the main pipe 55. In addition, one end of an auxiliary pipe 57 is fixedly installed inside the arc-shaped side wall of the first annular sleeve 54, and a fixed pipe 58 is fixedly installed at the other end of the auxiliary pipe 57. One end of the fixed tube 58 is fixedly installed inside the curved side wall of the outer tube 46, and the fixed tube 58 passes through the curved side wall of the inner tube 47. The other end of the fixed tube 58 is slidably installed with one end of the movable tube 59 through a sealed bearing, and the other end of the movable tube 59 is fixedly installed with an expansion airbag 510. The outside of the expansion airbag 510 is attached to the outside of the end of the inner tube 47 away from the drilling motor 313. There are five groups of auxiliary tubes 57, fixed tubes 58, movable tubes 59 and expansion airbags 510, and the five groups of auxiliary tubes 57, fixed tubes 58, movable tubes 59 and expansion airbags 510 are staggered with the five groups of spring rods 48 in an equally spaced circular array to achieve better sealing.

[0051] When this embodiment is used, in order to enhance the protective effect of the protective component 4, when the inner cylinder 47 is close to the mine wall to be drilled, the dual-purpose pump 52 on the fixed ring 51 is started, and the main electromagnetic valve 56 on the main pipe 55 is opened. The gas output by the dual-purpose pump 52 enters the first annular sleeve 54 through the secondary pipe 53 in turn, enters the main pipe 55 after being diverted by the first annular sleeve 54, and is then transported to the fixed pipe 58 through the auxiliary pipe 57. Finally, it is filled into the expansion airbag 510 through the mobile pipe 59 connected to the fixed pipe 58 through the sealed bearing, so that the volume of the expansion airbag 510 gradually increases and fits the surface of the mine wall. Then, the main electromagnetic valve 56 is closed to maintain the air pressure in the airbag, and the five groups of auxiliary pipes 57, fixed pipes 58, mobile pipes 59 and expansion airbags 510 in a circumferential array with equal spacing staggered with the spring rod 48 are inflated synchronously. , multiple groups of expansion airbags 510 squeeze each other to form an overall sealing structure, which can better adapt to the uneven surface of the mine wall, greatly improve the sealing between the inner cylinder 47 and the mine wall, reduce the leakage of inert gas from the gap, and at the same time prevent the debris generated during the drilling process from splashing to the outside. When the movable frame 311 drives the device to move as a whole, the inner cylinder 47 slides in the outer cylinder 46, and the movable tube 59 slides synchronously with the inner cylinder 47 in the fixed tube 58, and the sealed bearing ensures the gas sealing during the sliding process. After the drilling is completed, the inflation and suction dual-purpose pump 52 is switched to the suction mode to extract the gas inside the expansion airbag 510, causing the airbag to shrink, without affecting the resetting of the inner cylinder 47 and the overall movement of the device. In summary, by strengthening the seal and blocking debris, the protection effect of the protection component 4 is significantly improved.

[0052] In one embodiment of the present invention, a cleaning assembly 6 is also provided on the outside of the drill rod 314, and the cleaning assembly 6 includes a second annular sleeve 61, and a second annular sleeve 61 is fixedly installed on the outside of the end of the inner cylinder 47 away from the drilling motor 313, and a discharge pipe 62 is fixedly installed inside the arc-shaped side wall of the second annular sleeve 61, and the discharge pipe 62 passes through the inner cylinder 47, and the input end of the discharge pump 64 is also fixedly installed inside the arc-shaped side wall of the second annular sleeve 61, and the output end of the discharge pump 64 is fixedly connected to one end of the bent pipe 63, and a discharge solenoid valve 65 is provided on the bent pipe 63, and a hose 66 is fixedly installed on the other end of the bent pipe 63 to better discharge. In addition, there are five groups of discharge pipes 62, and the five groups of discharge pipes 62 are staggered with the five groups of expansion airbags 510 in an equidistant circular array. There are two groups of bent pipes 63, discharge pumps 64, discharge solenoid valves 65 and hoses 66, which makes the discharge speed faster.

[0053] When the present embodiment is used, to ensure stable operation of the device, when the drill rod 314 stops working intermittently, the inert gas supply is stopped, the discharge pump 64 is started, and the discharge solenoid valve 65 is opened. The discharge pump 64 generates negative pressure suction. Under the action of suction, the crushed stone generated by drilling inside the inner cylinder 47 is sucked into the second annular sleeve 61 through five groups of discharge pipes 62 arranged in a circumferential array with equal spacing and staggered with the expansion airbags 510. The second annular sleeve 61 collects the crushed stone and transports it to the elbow 63. The two groups of parallel curved pipes 63, discharge pump 64, discharge solenoid valve 65 and hose 66 accelerate the discharge speed. The crushed stone is finally discharged to a designated collection area on the ground through the elbow 63 and hose 66. This timely cleans the crushed stone generated by drilling, prevents the crushed stone from accumulating or splashing inside the device, and prevents it from interfering with the rotation of the drill rod 314, the movement of the movable frame 311 and other components, ensuring the continuous and efficient cooperation of the various components of the device and maintaining the stability of the overall operation.

[0054] Among them, the electrical components appearing in this application document are all electrically connected to the PLC controller and 220V AC power, and the PLC controller is a conventional known device that can control the supporting hydraulic cylinder 1, the inclined hydraulic cylinder 31, the asynchronous motor 37, the asynchronous motor 312, the drilling motor 313, the air supply equipment 41, the charging and suction dual-purpose pump 52, the main solenoid valve 56, the discharge pump 64 and the discharge solenoid valve 65. The standard parts used in this application document can all be purchased from the market, and the specific connection methods of each part are all connected by conventional means such as mature rivets and welding in the existing technology, and the standard parts are all commonly used in the existing technology. The model of the specification is adopted, and the circuit connection adopts the conventional connection method in the prior art. It should be noted that the above-mentioned electrical components are all existing technology products. The technical personnel in this field shall select, install and complete the circuit debugging work according to the needs of use to ensure that all electrical appliances can work normally. The components are all universal standard parts or components known to the technical personnel in this field. Their structures and principles are known to the technical personnel in this field through technical manuals or through conventional experimental methods. No specific restrictions are made here. The supporting structures of the hydraulic drive structure appearing in this application document, such as the hydraulic box and hydraulic pump, are existing equipment and will not be described in detail here.

[0055] While the present invention has been generally described above, modifications and improvements are readily apparent to those skilled in the art. Therefore, modifications and improvements that do not depart from the spirit of the present invention are intended to be within the scope of the present invention.

Claims

1. A gas extraction drilling device, comprising a supporting hydraulic cylinder (1), wherein the piston end of the supporting hydraulic cylinder (1) is fixedly mounted on a frame (2), characterized in that: A drilling assembly (3) is provided on the frame (2), and the drilling assembly (3) comprises: An oblique hydraulic cylinder (31), a fixed end of the oblique hydraulic cylinder (31) is hingedly mounted on the frame (2), one end of a hinge block (32) is hingedly mounted on the piston end of the oblique hydraulic cylinder (31), the other end of the hinge block (32) is hingedly mounted on one end of a swing frame (33), a fixed block (34) is fixedly mounted on the top of the frame (2), one end of a moving block (35) is mounted on the other end of the swing frame (33), and the other end of the moving block (35) is hingedly mounted on the fixed block (34); A support block (36) is fixedly installed on the top of one end of the frame (2) away from the fixed block (34), and the support block (36) is located directly below the swing frame (33). An asynchronous motor (37) is fixedly installed on the outer wall of the swing frame (33), and a threaded rod (38) is fixedly installed on the output end of the asynchronous motor (37). Both ends of the threaded rod (38) are rotatably mounted inside the swing frame (33) through bearings. A threaded block (39) is threadedly mounted on the threaded rod (38). A slide rail (310) is fixedly installed on the outer wall of the swing frame (33), and a movable frame (311) is slidably mounted inside the slide rail (310). The outer wall of one end of the movable frame (311) is fixedly connected to the outer wall of the threaded block (39); An asynchronous motor (312) is fixedly mounted on the bottom center of the movable frame (311), the top of the output shaft of the asynchronous motor (312) is fixedly connected to the bottom center of the drilling motor (313), and a drill rod (314) is fixedly mounted on the output end of the drilling motor (313).

2. The gas extraction hole drilling device according to claim 1, characterized in that: Four groups of the supporting hydraulic cylinders (1) are provided, and the supporting hydraulic cylinders (1) are respectively located at the four corners of the frame (2).

3. The gas extraction hole drilling device according to claim 1, characterized in that: A slide rod (315) is fixedly mounted on one side of the swing frame (33) away from the asynchronous motor (37), and a slide sleeve (316) is fixedly mounted on the outer wall of the other end of the movable frame (311). The slide sleeve (316) is slidably mounted on the outside of the slide rod (315).

4. The gas extraction hole drilling device according to claim 1, characterized in that: The drilling motor (313) is provided with a protective component (4), the protective component (4) comprising an air supply device (41), the air supply device (41) being fixedly mounted on an outer wall of one end of the drilling motor (313), the air supply device (41) being provided with an air inlet (42) at an input end thereof, the air inlet (42) being used for filling inert gas into the interior of the air supply device (41).

5. The gas extraction hole drilling device according to claim 4, characterized in that: A protective cover (43) is fixedly mounted on the outer wall of one end of the drilling motor (313) close to the drill rod (314), the drill rod (314) passes through the protective cover (43), an air outlet pipe (44) is fixedly mounted between the inner side wall of the protective cover (43) and the output end of the air supply device (41), and a vertical slot (45) is provided at one end of the drilling motor (313). The vertical slots (45) are provided in multiple groups, and the multiple groups of vertical slots (45) are arranged in a circular array with equal spacing, with the center of the circular cross section of the drill rod (314) as the array center.

6. The gas extraction hole drilling device according to claim 5, characterized in that: An outer cylinder (46) is fixedly mounted on the outer wall of the protective cover (43), an inner cylinder (47) is slidably mounted inside the outer cylinder (46), and a spring rod (48) is fixedly mounted between the inner side wall of the outer cylinder (46) and the outer wall of the inner cylinder (47). The spring rods (48) are provided in multiple groups, and the multiple groups of spring rods (48) are arranged in a circular array with equal spacing, with the center of the circular cross section of the outer cylinder (46) as the center of the array.

7. The gas extraction hole drilling device according to claim 6, characterized in that: An auxiliary component (5) is provided on the outside of the drill rod (314), and the auxiliary component (5) includes a fixed ring (51). The fixed ring (51) is fixedly installed on the arc-shaped outer wall of the outer cylinder (46), and a charging and suction dual-purpose pump (52) is fixedly installed on the outer wall of the fixed ring (51). One end of the charging and suction dual-purpose pump (52) is fixedly installed with a secondary pipe (53), and the other end of the charging and suction dual-purpose pump (52) is fixedly connected to one end of a main pipe (55). The other end of the main pipe (55) is fixedly installed with a first annular sleeve (54), and a main solenoid valve (56) is provided on the main pipe (55).

8. The gas extraction hole drilling device according to claim 7, characterized in that: One end of an auxiliary tube (57) is fixedly installed inside the arc-shaped side wall of the first annular sleeve (54), and a fixed tube (58) is fixedly installed on the other end of the auxiliary tube (57). One end of the fixed tube (58) is fixedly installed inside the arc-shaped side wall of the outer cylinder (46). The fixed tube (58) passes through the arc-shaped side wall of the inner cylinder (47). The other end of the fixed tube (58) is slidably installed with one end of a moving tube (59) through a sealed bearing. The other end of the moving tube (59) is fixedly installed with an expansion airbag (510). The outside of the expansion airbag (510) is attached to the outside of one end of the inner cylinder (47) away from the drilling motor (313). The auxiliary tube (57), the fixed tube (58), the moving tube (59) and the expansion airbag (510) are provided in multiple groups, and the multiple groups of the auxiliary tubes (57), the fixed tubes (58), the moving tubes (59) and the expansion airbag (510) are staggered in a circumferential array with equal spacing with the multiple groups of spring rods (48).

9. The gas extraction hole drilling device according to claim 8, characterized in that: A cleaning assembly (6) is further provided on the outside of the drill rod (314), and the cleaning assembly (6) comprises a second annular sleeve (61). The second annular sleeve (61) is fixedly installed on the outside of one end of the inner tube (47) away from the drilling motor (313). A discharge pipe (62) is fixedly installed inside the arc-shaped side wall of the second annular sleeve (61), and the discharge pipe (62) passes through the inner tube (47). The input end of a discharge pump (64) is further fixedly installed inside the arc-shaped side wall of the second annular sleeve (61). The output end of the discharge pump (64) is fixedly connected to one end of a curved pipe (63). A discharge solenoid valve (65) is provided on the curved pipe (63), and a hose (66) is fixedly installed on the other end of the curved pipe (63).

10. The gas extraction hole drilling device according to claim 9, characterized in that: The discharge pipes (62) are provided in multiple groups, and the multiple groups of discharge pipes (62) and the multiple groups of expansion air bags (510) are arranged in a staggered and evenly spaced circular array. The bent pipes (63), discharge pumps (64), discharge solenoid valves (65) and hoses (66) are provided in multiple groups.

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