Gas-liquid linkage drilling machine for coal mining

Abstract

The invention belongs to the technical field of coal, rock, oil and gas exploitation and drilling, and particularly relates to a gas-liquid linkage drilling machine for coal mining, which comprises a movable frame, a lifting rod is mounted on the movable frame, a sliding rail is rotatably mounted on the lifting rod, a drilling machine main machine and a drilling rod are mounted on the sliding rail, and a protection module is further mounted on the sliding rail; the protection module comprises a mounting box and a collecting barrel, a mounting hole is formed in the mounting box, a sponge block is mounted in the mounting hole, and a waterproof plastic film is arranged in the sponge block; a cleaning cylinder is mounted in the mounting box, bristles are mounted in the cleaning cylinder, water outlet holes are formed in the cleaning cylinder, a water inlet pipe is mounted on the mounting box, and a water drainage pipe is mounted on the collecting cylinder; dust generated during drilling and impurities on the drill rod are cleaned through the protection module, the situation that workers are hurt due to the fact that the dust drifts away is avoided, and normal work of the drill rod is guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of coal, rock, oil and gas mining and drilling, in particular to a gas-liquid linkage drilling rig for coal mining. Background Art

[0002] A drilling rig is a mechanical device that drives the drill to drill underground to obtain physical geological data during geological exploration. It is also called a drilling machine. Its main function is to drive the drill to break the rock at the bottom of the hole and lower or extract the drill in the hole. It can be used to drill cores, ore cores, rock cuttings, gas samples, liquid samples, etc. to explore underground geology and mineral resources.

[0003] The existing Yaojie mining area has established an extraction system that links the three areas above and below the mine, realizing the common mining of coal, rock, oil and gas. During coal mining, if there is oil and gas in the area, in order to improve the exploration efficiency, the gas-liquid linkage drilling rig can effectively drill with high efficiency. When the drilling rig is used for drilling, the drill rod on the drilling rig will be used for a long time to open holes and other work, which will cause a large amount of impurities to adhere to the drill rod, and some impurities are corrosive, so long-term adhesion will corrode the drill rod and drill bit, which requires staff to clean it later, and most of the existing drill bit protection mechanisms do not have the effect of cleaning impurities and protecting the drill bit from corrosion by attachments; at the same time, during the operation of the drilling rig, the dust generated at the drilling site will float around, polluting the tunnel environment in the coal mine and affecting the health of the staff. Summary of the invention

[0004] In order to make up for the shortcomings of the prior art, a protective module is used to clean the dust generated during the drilling process and the debris and impurities attached to the drill rod, so as to ensure the normal operation of the drilling rig and the drill rod and extend their service life. At the same time, the dust generated by the drilling is prevented from being dispersed, thereby ensuring a good working environment and reducing the harm of dust to the workers. The present invention proposes a gas-liquid linkage drilling rig for coal mining.

[0005] The technical solution adopted by the present invention to solve the technical problem is as follows: the gas-liquid linkage drilling rig for coal mining described in the present invention comprises a mobile frame, an equipment box is installed on the mobile frame, a gas and liquid system is installed in the equipment box, a lifting rod is installed on the mobile frame, a fixed block is installed on the lifting rod, a connecting block is rotatably installed on the fixed block, the connecting block and the fixed block are locked by a locking screw, a slide rail is installed on the connecting block, a drilling rig mainframe is installed on the slide rail, a drill rod is installed on the drilling rig mainframe, a protection module is also installed on the slide rail, and the drill rod passes through the protection module; The protection module comprises an installation box, the installation box is fixedly mounted on the end of the slide rail away from the drilling rig mainframe, a fixing plate is installed on the end of the installation box away from the drilling rig mainframe, a mounting hole is provided on the side wall and the fixing plate of the installation box close to the drilling rig mainframe, the drill rod passes through the mounting hole, a sponge block is installed in the mounting hole on the installation box, the sponge block is composed of multiple layers of sponge, and a water-proof plastic film is installed between each layer of sponge in the sponge block; A cleaning cylinder is installed in the installation box, the fixing plate presses and fixes the cleaning cylinder in the installation box, sealing pads are installed at both ends of the cleaning cylinder, the diameter of the cleaning cylinder is larger than the diameter of the installation hole, bristles are installed on the inner wall of the cleaning cylinder, the bristles are in contact with the surface of the drill rod, a water outlet hole is opened on the inner wall of the cleaning cylinder, and a water inlet pipe is installed on the installation box; A collecting cylinder is installed at one end of the installation box away from the main drilling rig, and a drainage pipe is installed on the collecting cylinder.

[0006] Preferably, the cleaning barrel is provided with multiple groups of bristles, the bristles are distributed in a spiral shape, the water outlet is located in the gap between each group of bristles, and the outlet direction of the water outlet is toward the surface of the drill rod; An elastic sheet is installed in the water outlet hole.

[0007] Preferably, an elastic plate is installed in the mounting hole on the fixed plate, a through hole is opened on the elastic plate, the drill rod passes through the through hole, and evenly distributed ejection holes are opened on the inner wall of the through hole, and the center line of the ejection hole is parallel to the center line of the through hole.

[0008] Preferably, the elastic plate is provided with slits, the slits are distributed along the radial direction of the through hole, and one end of the slits close to the drill rod is connected to the ejection hole; The diameter of the ejection hole at one end close to the drilling rig mainframe is larger than the diameter of the ejection hole at one end close to the collecting tube.

[0009] Preferably, a separation net is installed in the collection cylinder, the cross section of the separation net is arc-shaped, an independent space is formed between the separation net and the inner wall of the collection cylinder, and the drainage pipe is connected to an end of the independent space close to the mainframe of the drilling rig; The collecting cylinder is provided with a drop groove, and the drop groove is located between the separation net and the installation box.

[0010] Preferably, a baffle is installed on the installation box, the diameter of the baffle is greater than or equal to the diameter of the installation hole on the fixed plate, the separation net is located on the outer side of the baffle away from the end of the installation box, there is an overlapping area between the separation net and the baffle, and there is a gap between the separation net and the baffle; The thickness of the baffle plate at one end close to the installation box is greater than the thickness of the baffle plate at one end close to the separation net.

[0011] Preferably, the separation net is rotatably installed in the collection cylinder, an elastic rod is installed at one end of the separation net away from the installation box, the elastic rod is magnetic, the other end of the elastic rod is in contact with the drill rod, and the surface of the elastic rod is rough.

[0012] Preferably, a contact capsule is installed on the surface of the collecting tube away from the installation box, and a raised ring is arranged on the surface of the contact capsule. The raised rings are provided in multiple groups and are concentrically distributed.

[0013] The beneficial effects of the present invention are as follows: 1. The gas-liquid linkage drilling rig for coal mining described in the present invention, by providing an installation box, a cleaning cylinder, bristles, and a water outlet, allows the bristles and the water flow in the water outlet to clean the surface of the drill rod, thereby avoiding corrosion of impurities on the drill rod, affecting the service life of the drill rod and increasing the workload of subsequent staff for cleaning the drill rod. At the same time, the collection cylinder will collect and clean the dust generated by the drilling and attached to the wall of the borehole, thereby preventing the dust from floating around and affecting the health of the staff.

[0014] 2. The gas-liquid linkage drilling rig for coal mining described in the present invention can accumulate water in the cleaning barrel and fill the cleaning barrel by arranging elastic plates, through holes, ejection holes and slits, so that the drill rod in the cleaning barrel is immersed in the water flow, thereby improving the cleaning effect of the drill rod. At the same time, the water in the cleaning barrel will be ejected from the ejection holes along the surface of the drill rod, thereby increasing the immersed and wetted area of ​​the drill rod and increasing the cooling effect of the drill rod. At the same time, through the action of the slits, the elastic plate can undergo elastic deformation when the ejection plate is blocked, thereby clearing the ejection hole and avoiding affecting the normal use of the protection module.

[0015] 3. The gas-liquid linkage drilling rig for coal mining described in the present invention, by setting a collecting cylinder, a separation net, an elastic rod and a baffle, the waste water generated in the drilling process will first be processed by the separation net, so that the water and debris impurities therein are separated from each other, and the separated debris impurities are discharged out of the collecting cylinder, thereby ensuring that the number of impurities in the water recovered in the drain pipe is relatively small, avoiding the drain pipe from being blocked. At the same time, the separation net is also driven by the rotating drill rod through the elastic rod, so that the working area of ​​the separation net changes, thereby improving the working efficiency of the separation net. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with the accompanying drawings.

[0017] Figure 1 is a stereogram of the drilling rig of the present invention; Figure 2 is a cross-sectional view of a protection module in a drilling rig of the present invention; Figure 3is a three-dimensional diagram of a mounting box in a drilling rig of the present invention; Figure 4 is a three-dimensional diagram of an elastic plate in a drilling rig of the present invention; Figure 5 is a stereoscopic view of a cleaning barrel in a drilling rig of the present invention; Figure 6 is a stereoscopic diagram of a separation net in a drilling rig of the present invention; Figure 7 yes Figure 2 A partial enlarged view of the middle part; Figure 8 yes Figure 2 A partial enlarged view of point B in the middle; Fig. 9 yes Figure 2 A partial enlarged view of point C in the middle; In the figure: mobile frame 1, equipment box 11, lifting rod 12, fixing block 121, slide rail 2, connecting block 21, locking screw 22, drilling rig mainframe 23, drill rod 24, installation box 3, fixing plate 31, sponge block 311, cleaning cylinder 32, sealing gasket 321, brush 33, water outlet 34, elastic plate 35, through hole 351, spray hole 352, slit 353, baffle 36, water inlet pipe 37, collecting cylinder 4, contact capsule 41, raised ring 411, separation net 42, elastic rod 43, drop groove 44, drain pipe 45. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0019] like Figures 1 to 9 As shown, a gas-liquid linkage drilling rig for coal mining described in the present invention comprises a mobile frame 1, an equipment box 11 is installed on the mobile frame 1, a gas and liquid system is installed in the equipment box 11, a lifting rod 12 is installed on the mobile frame 1, a fixed block 121 is installed on the lifting rod 12, a connecting block 21 is rotatably installed on the fixed block 121, the connecting block 21 and the fixed block 121 are locked by a locking screw 22, a slide rail 2 is installed on the connecting block 21, a drilling rig mainframe 23 is installed on the slide rail 2, a drill rod 24 is installed on the drilling rig mainframe 23, a protection module is also installed on the slide rail 2, and the drill rod 24 passes through the protection module; The protection module includes an installation box 3, which is fixedly installed on the end of the slide rail 2 away from the drilling rig mainframe 23, and a fixing plate 31 is installed on the end of the installation box 3 away from the drilling rig mainframe 23. The side wall of the installation box 3 close to the drilling rig mainframe 23 and the fixing plate 31 are provided with installation holes, and the drill rod 24 passes through the installation holes. A sponge block 311 is installed in the installation hole on the installation box 3, and the sponge block 311 is composed of multiple layers of sponge, and a water-proof plastic film is installed between each layer of sponge in the sponge block 311; A cleaning cylinder 32 is installed in the installation box 3, and the fixing plate 31 presses and fixes the cleaning cylinder 32 in the installation box 3. Sealing pads 321 are installed at both ends of the cleaning cylinder 32. The diameter of the cleaning cylinder 32 is larger than the diameter of the installation hole. Brushes 33 are installed on the inner wall of the cleaning cylinder 32. The brushes 33 are in contact with the surface of the drill rod 24. A water outlet hole 34 is opened on the inner wall of the cleaning cylinder 32. A water inlet pipe 37 is installed on the installation box 3. A collecting tube 4 is installed at one end of the installation box 3 away from the drilling rig mainframe 23, and a drainage pipe 45 is installed on the collecting tube 4; During operation, the staff controls the gas and liquid systems in the equipment box 11 through the controller to operate, thereby adjusting the height of the lifting rod 12, so that the height of the drill rig mainframe 23 and the drill rod 24 is the same as the position to be mined on the wall of the coal mine tunnel. After that, the staff manually loosens the locking screw 22, so that the angle of the slide rail 2 can change relative to the lifting rod 12, until the angle of the drill rod 24 relative to the borehole wall in the tunnel is the same as the actual mining requirement, the staff tightens the locking screw 22 again to lock the angle of the slide rail 2, and then controls the drill rig to start mining through the controller. At the same time, during the mining process, the gas and liquid systems in the equipment box 11 are connected to the drill rig mainframe 23 through pipelines, thereby driving the drill rig mainframe 23 to operate, integrating the advantages of pneumatic and hydraulic drilling rigs; At the same time, when the drilling rig is mining coal, the protection module at the front end of the slide rail 2 will be closely attached to the wall of the borehole, and the debris and impurities attached to the surface of the drill rod 24 will be cleaned through the protection module, so as to avoid a large amount of impurities attached to the surface of the drill rod 24 after long-term use, resulting in corrosion of the surface of the drill rod 24, and reduce the difficulty and workload of cleaning the drill rod 24 by subsequent staff, and clean the dust generated during the drilling process to avoid dust flying and affecting the health of the staff; At the same time, during the operation of the drilling rig, the water stored in the water tank in the mobile frame 1 will enter the installation box 3 from the water inlet pipe 37, and then the water in the installation box 3 will be sprayed out from the water outlet hole 34 on the cleaning cylinder 32, and the sprayed water will be used to flush and clean the debris and impurities attached to the surface of the drill rod 24. At the same time, during the excavation process, the drill rod 24 will rotate relative to the cleaning cylinder 32, so that the bristles 33 in the cleaning cylinder 32 will further clean the surface of the drill rod 24, so that the surface of the drill rod 24 is clean, and the debris and impurities attached to the surface of the drill rod 24 will not corrode the surface of the drill rod 24 after the drill rod 24 is used for a long time, which will affect the service life of the drill rod 24, and the surface is clean, thereby greatly reducing the cleaning work of the drill rod 24 by the staff in the later stage; At the same time, since the collecting barrel 4 will be closely attached to the borehole wall in the coal mine tunnel, the dust generated during the mining process will directly enter the collecting barrel 4, preventing the dust from flying around and affecting the health of the workers. At the same time, since the collecting barrel 4 is installed on the mounting box 3, after the water sprayed from the water outlet 34 cleans the drill rod 24, this part of the water will directly enter the collecting barrel 4 from the mounting hole on the fixing plate 31, and then infiltrate and clean the dust in the collecting barrel 4, so that the dust entering the collecting barrel 4 will be adsorbed and entrained by the water, and then the water in the collecting barrel 4 will be discharged through the drainage pipe 45 installed on the collecting barrel 4, so that the water is recovered and recycled after filtering. At the same time, in the process of the water in the mounting box 3 being discharged from the mounting hole on the fixing plate 31 into the collecting barrel 4, the debris and impurities cleaned from the drill rod 24 by water in the cleaning barrel 32 and cleaned from the drill rod 24 by the brush 33 will enter the collecting barrel 4 together with the water, and then enter the drainage pipe 45 with the water; At the same time, since the sponge block 311 is installed in the mounting hole on the mounting box 3, and a water-isolating sponge block 311 is arranged between the sponge blocks 311, the sponge block 311 in the mounting hole can intercept and isolate the water flow while maintaining elasticity and being able to adapt to different shapes, so that the gap between the mounting hole on the mounting box 3 and the drill rod 24 is filled and blocked, avoiding a large gap between the drill rod 24 and the mounting hole, causing the water sprayed from the water outlet 34 to flow out from the mounting hole on the mounting box 3 in the opposite direction, causing the drilling rig to be wetted by water, affecting the normal use of the drilling rig or causing the drilling rig to malfunction.

[0020] As an embodiment of the present invention, the bristles 33 in the cleaning barrel 32 are provided with multiple groups, the bristles 33 are distributed along a spiral shape, the water outlet 34 is located in the gap between each group of bristles 33, and the outlet direction of the water outlet 34 is toward the surface of the drill rod 24; An elastic sheet is installed in the water outlet hole 34; By arranging a plurality of groups of spiral-shaped bristles 33 in the cleaning cylinder 32, the bristles 33 can fully contact the surface of the drill rod 24, so that the bristles 33 can clean the impurities and debris on the surface of the drill rod 24, thereby ensuring that the surface of the drill rod 24 is clean, preventing the surface of the drill rod 24 from being corroded, and reducing the workload of subsequent staff for cleaning the drill rod 24; At the same time, since the bristles 33 are in a spiral shape and the water outlet 34 is located in the gap between the bristles 33, the debris and impurities cleaned from the drill rod 24 by the bristles 33 and the sprayed water flow can move under the action of the spiral bristles 33, so that the cleaned debris and impurities can be brought out of the cleaning cylinder 32 from the mounting hole on the fixing plate 31 by the water flow, thereby ensuring that the debris and impurities in the cleaning cylinder 32 are relatively small as much as possible, thereby improving the cleaning effect of the drill rod 24; At the same time, by installing an elastic sheet in the water outlet hole 34, when water is sprayed from the water outlet hole 34 into the cleaning tube 32, the elastic sheet is squeezed and opened, which will not affect the cleaning effect of the sprayed water on the surface of the drill rod 24. At the same time, when water is no longer sprayed from the water outlet hole 34, the elastic sheet will return to its original state and close the water outlet hole 34, thereby preventing the debris cleaned from the surface of the drill rod 24 from entering the space between the cleaning tube 32 and the installation box 3, and preventing debris and impurities from entering the water outlet hole 34, thereby ensuring the normal operation of the protection module; At the same time, when the installation box 3 and the cleaning cylinder 32 need to be cleaned or replaced, the staff removes the screws on the fixing plate 31 with tools to separate the fixing plate 31 and the installation box 3 from each other, so that the cleaning cylinder 32 pressed and installed in the installation box 3 by the fixing plate 31 can be easily removed, thereby facilitating the cleaning of the cleaning cylinder 32 and the bristles 33 in the cleaning cylinder 32.

[0021] As an embodiment of the present invention, an elastic plate 35 is installed in the mounting hole on the fixing plate 31, a through hole 351 is opened on the elastic plate 35, the drill rod 24 passes through the through hole 351, and evenly distributed ejection holes 352 are opened on the inner wall of the through hole 351, and the center line of the ejection hole 352 is parallel to the center line of the through hole 351; The gap between the mounting hole on the fixing plate 31 and the drill rod 24 is filled by the elastic plate 35, so that the space in the mounting box 3 and the cleaning cylinder 32 is relatively closed, so that the water in the mounting box 3 and the cleaning cylinder 32 can be accumulated, and the water fills the space in the cleaning cylinder 32, so that the drill rod 24 in the cleaning cylinder 32 is immersed in the water flow, which promotes the infiltration and cleaning of impurities and debris on the surface of the drill rod 24, and improves the cleaning effect of the drill rod 24; At the same time, since evenly distributed ejection holes 352 are provided on the inner wall of the through hole 351, after the cleaning cylinder 32 is fully filled with water, the water in the cleaning cylinder 32 will be ejected again from the ejection holes 352. At this time, the water flow ejected from the ejection holes 352 will flow along the surface of the drill rod 24, so that the ejected water flow can cover the surface of the drill rod 24 as much as possible, so that the surface of the drill rod 24 is fully moistened, and the drill rod 24 is cooled to avoid the drill rod 24 from overheating after working for a long time, which affects the normal use of the drilling rig. At the same time, when the water ejected from the ejection holes 352 flows along the surface of the drill rod 24, the drill rod 24 will be cleaned again, further improving the cleaning effect of the drill rod 24.

[0022] As an embodiment of the present invention, the elastic plate 35 is provided with slits 353, the slits 353 are distributed along the radial direction of the through hole 351, and one end of the slits 353 close to the drill rod 24 is connected to the ejection hole 352; The diameter of the ejection hole 352 close to the drilling rig mainframe 23 is larger than the diameter of the ejection hole 352 close to the collecting tube 4. Since the diameter of the end of the ejection hole 352 close to the drill rig main body 23 is relatively large, the water flow ejected from the cleaning cylinder 32 will adhere to the surface of the drill rod 24 as much as possible, and the water flow will flow along the surface of the drill rod 24, thereby cleaning the impurities and debris on the surface of the drill rod 24 and cooling the drill rod 24; At the same time, since the protection module is closely attached to the wall of the borehole in the tunnel, the elastic plate 35 on the installation box 3 is relatively close to the wall of the borehole and the borehole, so that the water flow sprayed from the spray hole 352 and flowing along the surface of the drill rod 24 can relatively easily invade the gap between the borehole and the drill rod 24, thereby taking out the drill cuttings in the borehole, improving the working efficiency of the drilling rig, and timely collecting and cleaning the dust generated in the borehole; At the same time, the debris and impurities cleaned from the drill rod 24 by the water flow and the bristles 33 in the cleaning barrel 32 will also enter the collecting barrel 4 from the ejection hole 352 along with the water flow. In this process, the ejection hole 352 may be blocked by debris and impurities. When the ejection hole 352 is blocked, the pressure of the water flow in the cleaning barrel 32 on the elastic plate 35 will gradually increase, so that the elastic plate 35 will be elastically deformed along the slit 353 on its surface, so that the debris and impurities blocked in the ejection hole 352 are washed away by the water flow, thereby ensuring the normal use of the protection module.

[0023] As an embodiment of the present invention, a separation net 42 is installed in the collection cylinder 4, and the cross section of the separation net 42 is arc-shaped. An independent space is formed between the separation net 42 and the inner wall of the collection cylinder 4, and the drainage pipe 45 is connected to one end of the independent space close to the drilling rig mainframe 23; The collecting cylinder 4 is provided with a drop groove 44, and the drop groove 44 is located between the separation net 42 and the installation box 3; When the water flow sprayed from the spray hole 352 flows along the surface of the drill rod 24 and the water flow intrudes into the borehole, the water flow will fall into the collecting tube 4. At the same time, by installing a separation net 42 in the collecting tube 4, the water flow in the collecting tube 4 will fall onto the separation net 42. After that, the water flow and the debris and impurities carried in the water flow will be separated by the separation net 42, and the separated water will pass through the separation net 42 and enter the independent space between the separation net 42 and the inner wall of the collecting tube 4, and then enter the drain pipe 45 from the independent space, so that the debris and impurities carried in the water flow recovered through the drain pipe 45 are relatively small, avoiding the accumulation of debris and impurities in the drain pipe 45, resulting in drainage blockage. At the same time, the amount of debris and impurities carried in the water flow recovered in the drain pipe 45 is relatively small, which will also make it relatively easy to recycle the water flow recovered in the drain pipe 45, and facilitate the reuse of the recovered water flow. At the same time, the collection of water by the collection tube 4 can further prevent the water from flowing onto the ground in the tunnel, thereby ensuring a good working environment in the tunnel and preventing excessive water flow on the ground in the tunnel, which may cause interference or safety hazards to the staff. At the same time, the debris and impurities separated by the separation net 42 will slide along the curved surface of the separation net 42, and then be discharged to the outside of the collecting tube 4 from the drop groove 44 on the collecting tube 4, avoiding the accumulation of debris and impurities in the collecting tube 4 and affecting the normal use of the protection module.

[0024] As an embodiment of the present invention, a baffle 36 is installed on the installation box 3, the diameter of the baffle 36 is greater than or equal to the diameter of the installation hole on the fixed plate 31, the separation net 42 is located on the outer side of the baffle 36 away from the end of the installation box 3, there is an overlapping area between the separation net 42 and the baffle 36, and there is a gap between the separation net 42 and the baffle 36; The thickness of the baffle plate 36 close to the installation box 3 is greater than the thickness of the baffle plate 36 close to the separation net 42. Due to the influence of the shape of the drill rod 24 itself and the rotation of the drill rod 24, it is impossible for all the water in the cleaning barrel 32 to be ejected from the ejection hole 352 along the surface of the drill rod 24. There is a situation where the water falls from a position close to the fixed plate 31. At the same time, since the drop groove 44 is located between the separation net 42 and the installation box 3, there is a situation where the water flowing out of the cleaning barrel 32 flows directly out of the drop groove 44. At this time, the water falling near the fixed plate 31 is blocked and guided by the installed baffle 36, so that this part of the water can fall onto the separation net 42 under the action of the baffle 36, and the separation net 42 separates this part of the water so that the separated water can be collected from the drain pipe 45, thereby preventing the water discharged from the cleaning barrel 32 from being directly discharged to the outside after falling near the fixed plate 31, resulting in excessive water flow on the ground in the tunnel, affecting the working environment in the tunnel.

[0025] As an embodiment of the present invention, the separation net 42 is rotatably installed in the collection tube 4, and an elastic rod 43 is installed at one end of the separation net 42 away from the installation box 3. The elastic rod 43 is magnetic, and the other end of the elastic rod 43 is in contact with the drill rod 24. The surface of the elastic rod 43 is rough. Since the separation net 42 is rotatably installed in the collection barrel 4, and the elastic rod 43 is installed on the separation net 42, when the drill rod 24 rotates, the drill rod 24 will generate a force on the elastic rod 43, and then the separation net 42 is driven to rotate through the elastic rod 43, so that the position of the separation net 42 for separating the water flow carrying debris and impurities is adjusted, thereby promoting the debris and impurities separated on the separation net 42 to move and leave the separation net 42, avoiding the debris and impurities blocking the separation net 42 or the separation net 42 failing to separate in time, affecting the normal use of the protection module; At the same time, due to the rough surface of the elastic rod 43 and the magnetism of the elastic rod 43, after the elastic rod 43 contacts the drill rod 24, there will be a force between the elastic rod 43 and the drill rod 24, so that the drill rod 24 drives the elastic rod 43 and the separation net 42 to rotate, thereby improving the separation effect of the separation net 42 on water flow and debris.

[0026] As an embodiment of the present invention, a contact capsule 41 is installed on the surface of the collecting tube 4 away from the installation box 3, and a raised ring 411 is arranged on the surface of the contact capsule 41. The raised ring 411 is provided in multiple groups, and the raised rings 411 are concentrically distributed. The contact capsule 41 is provided to fit and fill the pits and grooves on the borehole wall, thereby ensuring full contact between the collecting tube 4 and the borehole wall, and preventing the water flowing out of the borehole from seeping out of the gap between the collecting tube 4 and the borehole wall, thereby affecting the collection and cleaning effect of the water flow, debris and dust generated by the borehole; At the same time, a plurality of groups of concentrically distributed raised rings 411 are arranged on the surface of the contact capsule 41, so that after the contact capsule 41 is attached to the borehole wall, the raised rings 411 can be used to fully fill and seal the grooves and pits on the borehole wall, thereby improving the sealing effect of the contact capsule 41 on the gap between the collecting tube 4 and the borehole wall.

[0027] The specific workflow is as follows: During operation, the height of the lifting rod 12 and the angle of the slide rail 2 are adjusted to make the height and angle of the drill rod 24 meet the requirements, and then the controller is used to control the drill to start mining; When the drilling rig is drilling underground, the protection module at the front end of the slide rail 2 will be closely attached to the wall of the borehole, and the debris and impurities attached to the surface of the drill rod 24 and the dust generated during the drilling process will be cleaned through the protection module; During the operation of the drilling rig, the water stored in the water tank in the mobile frame 1 will enter the installation box 3 from the water inlet pipe 37, and then the water in the installation box 3 will be sprayed out from the water outlet hole 34 on the cleaning cylinder 32 to flush and clean the debris and impurities attached to the surface of the drill rod 24. At the same time, during the excavation process, the drill rod 24 will rotate relative to the cleaning cylinder 32, so that the bristles 33 in the cleaning cylinder 32 will further clean the surface of the drill rod 24. Since the collecting barrel 4 will be closely attached to the borehole wall in the coal mine tunnel, the dust generated during the mining process will directly enter the collecting barrel 4. At the same time, since the collecting barrel 4 is installed on the mounting box 3, after the water sprayed from the water outlet hole 34 cleans the drill rod 24, this part of the water will directly enter the collecting barrel 4 from the mounting hole on the fixing plate 31, and then infiltrate and clean the dust in the collecting barrel 4, so that the dust entering the collecting barrel 4 will be adsorbed and entrained by the water, and then the water in the collecting barrel 4 will be discharged, recovered, and recycled through the drainage pipe 45 installed on the collecting barrel 4. At the same time, in the process of the water in the mounting box 3 being discharged from the mounting hole on the fixing plate 31 to the collecting barrel 4, the debris and impurities cleaned from the drill rod 24 by water in the cleaning barrel 32 and cleaned from the drill rod 24 by the brush 33 will enter the collecting barrel 4 together with the water, and then enter the drainage pipe 45 with the water. Since the sponge blocks 311 are installed in the installation holes on the installation box 3, and the water-isolating sponge blocks 311 are arranged between the sponge blocks 311, the sponge blocks 311 in the installation holes can intercept and isolate the water flow while maintaining elasticity and being able to adapt to different shapes, thereby avoiding a large gap between the drill rod 24 and the installation holes, which causes the water sprayed from the water outlet 34 to flow out from the installation holes on the installation box 3 in the reverse direction; By arranging a plurality of groups of spiral-shaped bristles 33 in the cleaning cylinder 32, the bristles 33 can fully contact the surface of the drill rod 24; At the same time, since the bristles 33 are in a spiral shape and the water outlet 34 is located in the gap between the bristles 33, the debris and impurities cleaned from the drill rod 24 by the bristles 33 and the sprayed water can move under the action of the spiral bristles 33, so that the cleaned debris and impurities can be brought out of the cleaning cylinder 32 from the mounting hole on the fixing plate 31 by the water flow; At the same time, by installing an elastic sheet in the water outlet 34, when water flows out from the water outlet 34 into the cleaning tube 32, the elastic sheet is squeezed and opened. At the same time, when water flows out of the water outlet 34 no longer, the elastic sheet returns to its original state and closes the water outlet 34. At the same time, when the installation box 3 and the cleaning cylinder 32 need to be cleaned or replaced, the staff removes the screws on the fixing plate 31 with tools, so that the fixing plate 31 and the installation box 3 are separated from each other, and the cleaning cylinder 32 pressed and installed in the installation box 3 by the fixing plate 31 can be easily removed; The gap between the mounting hole on the fixing plate 31 and the drill rod 24 is filled by the elastic plate 35, so that the space in the mounting box 3 and the cleaning cylinder 32 is relatively closed, so that the water in the mounting box 3 and the cleaning cylinder 32 can be accumulated, and the water fills the space in the cleaning cylinder 32, so that the drill rod 24 in the cleaning cylinder 32 is immersed in the water flow; At the same time, since the inner wall of the through hole 351 is provided with uniformly distributed ejection holes 352, after the cleaning cylinder 32 is fully filled with water, the water in the cleaning cylinder 32 will be ejected again from the ejection holes 352. At this time, the water ejected from the ejection holes 352 will flow along the surface of the drill rod 24, so that the ejected water will cover the surface of the drill rod 24 as much as possible, so that the surface of the drill rod 24 is fully wetted, and the drill rod 24 is cooled down. At the same time, when the water ejected from the ejection holes 352 flows along the surface of the drill rod 24, the drill rod 24 will be cleaned again. Since the diameter of the end of the ejection hole 352 close to the drilling rig main body 23 is relatively large, the water jetted from the cleaning tube 32 will adhere to the surface of the drill rod 24 as much as possible, and the water will flow along the surface of the drill rod 24; At the same time, since the protection module is closely attached to the wall of the borehole in the tunnel, the elastic plate 35 on the installation box 3 is relatively close to the wall of the borehole and the borehole, so that the water flow sprayed from the spray hole 352 and flowing along the surface of the drill rod 24 can relatively easily invade the gap between the borehole and the drill rod 24, thereby taking out the drill cuttings in the borehole; At the same time, the debris and impurities cleaned from the drill rod 24 by the water flow and the bristles 33 in the cleaning cylinder 32 will also enter the collecting cylinder 4 from the ejection hole 352 along with the water flow. In this process, the ejection hole 352 may be blocked by debris and impurities. When the ejection hole 352 is blocked, the pressure of the water flow in the cleaning cylinder 32 on the elastic plate 35 will gradually increase, so that the elastic plate 35 is elastically deformed along the slit 353 on its surface, so that the debris and impurities blocked in the ejection hole 352 are washed away by the water flow. When the water flow sprayed from the spray hole 352 flows along the surface of the drill rod 24 and the water flow intrudes into the borehole, the water flow will fall into the collection tube 4. At the same time, by installing a separation net 42 in the collection tube 4, the water flow in the collection tube 4 will fall onto the separation net 42. After that, the water flow and the debris and impurities carried in the water flow will be separated by the separation net 42, and the separated water will pass through the separation net 42 and enter the independent space between the separation net 42 and the inner wall of the collection tube 4, and then enter the drain pipe 45 from the independent space, so that the debris and impurities carried in the water flow recovered through the drain pipe 45 are relatively small, thereby avoiding drainage blockage and facilitating the reuse of the recovered water flow. At the same time, the collection of water by the collection tube 4 can further prevent the water from flowing onto the ground in the tunnel, thus ensuring a good working environment in the tunnel; At the same time, the debris and impurities separated by the separation net 42 will slide down along the arc surface of the separation net 42, and then be discharged from the drop groove 44 on the collection tube 4 to the outside of the collection tube 4; The water flow falling near the fixed plate 31 is blocked and guided by the installed baffle 36, so that the water flow can fall onto the separation net 42 under the action of the baffle 36, and the separation net 42 separates the water flow; Since the separation net 42 is rotatably installed in the collection tube 4, and the elastic rod 43 is installed on the separation net 42, when the drill rod 24 rotates, the drill rod 24 will generate a force on the elastic rod 43, and then the separation net 42 is driven to rotate through the elastic rod 43, so that the position of the separation net 42 for separating the water flow carrying debris and impurities is adjusted; At the same time, since the surface of the elastic rod 43 is rough and the elastic rod 43 is magnetic, after the elastic rod 43 contacts the drill rod 24, there will be a force between the elastic rod 43 and the drill rod 24, so that the drill rod 24 drives the elastic rod 43 and the separation net 42 to rotate; The contact capsule 41 is provided to fit and fill the pits and grooves on the borehole wall, thereby ensuring full contact between the collecting tube 4 and the borehole wall; At the same time, a plurality of groups of concentrically distributed raised rings 411 are arranged on the surface of the contact capsule 41, so that after the contact capsule 41 is attached to the borehole wall, the raised rings 411 can be used to fully fill and seal the grooves and pits on the borehole wall.

[0028] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A gas-liquid linkage drilling rig for coal mining, comprising a mobile frame (1), an equipment box (11) is installed on the mobile frame (1), a gas and liquid system is installed in the equipment box (11), a lifting rod (12) is installed on the lifting rod (12), a fixing block (121) is installed on the fixing block (121), a connecting block (21) is rotatably installed on the fixing block (121), the connecting block (21) and the fixing block (121) are locked by a locking screw (22), a slide rail (2) is installed on the connecting block (21), a drilling rig mainframe (23) is installed on the slide rail (2), a drill rod (24) is installed on the drilling rig mainframe (23), a protection module is also installed on the slide rail (2), and the drill rod (24) passes through the protection module; Features: The protection module comprises a mounting box (3), the mounting box (3) being fixedly mounted on one end of the slide rail (2) away from the drilling rig mainframe (23), a fixing plate (31) being mounted on the one end of the mounting box (3) away from the drilling rig mainframe (23), a mounting hole being provided on the side wall of the mounting box (3) close to the drilling rig mainframe (23) and the fixing plate (31), the drill rod (24) passing through the mounting hole, a sponge block (311) being mounted in the mounting hole on the mounting box (3), the sponge block (311) being composed of multiple layers of sponge, and a water-proof plastic film being mounted between each layer of sponge in the sponge block (311); A cleaning cylinder (32) is installed in the installation box (3), the fixing plate (31) presses and fixes the cleaning cylinder (32) in the installation box (3), sealing pads (321) are installed at both ends of the cleaning cylinder (32), the diameter of the cleaning cylinder (32) is larger than the diameter of the installation hole, bristles (33) are installed on the inner wall of the cleaning cylinder (32), the bristles (33) are in contact with the surface of the drill rod (24), a water outlet hole (34) is opened on the inner wall of the cleaning cylinder (32), and a water inlet pipe (37) is installed on the installation box (3); A collecting cylinder (4) is installed at one end of the installation box (3) away from the drilling rig mainframe (23), and a drainage pipe (45) is installed on the collecting cylinder (4).

2. The gas-hydraulic drilling rig for coal mining according to claim 1, characterized in that: The bristles (33) in the cleaning cylinder (32) are arranged in a plurality of groups, the bristles (33) are distributed in a spiral shape, the water outlet holes (34) are located in the gaps between the groups of bristles (33), and the outlet direction of the water outlet holes (34) faces the surface of the drill rod (24); An elastic sheet is installed in the water outlet hole (34).

3. The gas-hydraulic drilling rig for coal mining according to claim 1, characterized in that: An elastic plate (35) is installed in the installation hole on the fixing plate (31), a through hole (351) is provided on the elastic plate (35), the drill rod (24) passes through the through hole (351), and evenly distributed ejection holes (352) are provided on the inner wall of the through hole (351), and the center line of the ejection hole (352) is parallel to the center line of the through hole (351).

4. The gas-hydraulic drilling rig for coal mining according to claim 3, characterized in that: The elastic plate (35) is provided with slits (353), the slits (353) are distributed along the radial direction of the through hole (351), and one end of the slits (353) close to the drill rod (24) is connected to the ejection hole (352) for scratching; The diameter of the ejection hole (352) at one end close to the drilling machine mainframe (23) is larger than the diameter of the ejection hole (352) at one end close to the collecting cylinder (4).

5. A gas-hydraulic drilling rig for coal mining according to claim 4, characterized in that: A separation net (42) is installed in the collection cylinder (4), the cross section of the separation net (42) is arc-shaped, an independent space is formed between the separation net (42) and the inner wall of the collection cylinder (4), and the drainage pipe (45) is connected to an end of the independent space close to the drilling rig mainframe (23); The collecting cylinder (4) is provided with a drop groove (44), and the drop groove (44) is located between the separation net (42) and the installation box (3).

6. A gas-hydraulic drilling rig for coal mining according to claim 5, characterized in that: A baffle (36) is installed on the installation box (3), the diameter of the baffle (36) is greater than or equal to the diameter of the installation hole on the fixed plate (31), the separation net (42) is located on the outer side of the end of the baffle (36) away from the installation box (3), there is an overlapping area between the separation net (42) and the baffle (36), and there is a gap between the separation net (42) and the baffle (36); The thickness of the baffle plate (36) at one end close to the installation box (3) is greater than the thickness of the baffle plate (36) at one end close to the separation net (42).

7. The gas-hydraulic drilling rig for coal mining according to claim 5, characterized in that: The separation net (42) is rotatably mounted in the collection barrel (4); an elastic rod (43) is mounted on one end of the separation net (42) away from the mounting box (3); the elastic rod (43) is magnetic; the other end of the elastic rod (43) is in contact with the drill rod (24); and the surface of the elastic rod (43) is rough.

8. The gas-hydraulic drilling rig for coal mining according to claim 5, characterized in that: A contact capsule (41) is installed on the surface of the collecting cylinder (4) away from the installation box (3), and a raised ring (411) is arranged on the surface of the contact capsule (41). The raised rings (411) are arranged in multiple groups, and the raised rings (411) are concentrically distributed.

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