A tracked hydraulic coal seam drilling and permeation enhancement integrated machine

Abstract

This invention discloses a tracked hydraulic coal seam drilling and permeability enhancement integrated machine, relating to the field of coal seam drilling technology. It includes a moving component, a driving component, a drilling component, and an internal support component. The internal support component is used to support and protect the borehole wall during drilling. The drilling component includes a hollow drill rod. This tracked hydraulic coal seam drilling and permeability enhancement integrated machine uses a pressing hammer to push and expand arc-shaped frames and plates, injecting hydraulic oil into the hydraulic expansion cone. The expansion of the hydraulic expansion cone causes multiple expansion arc-shaped frames and plates to unfold. By expanding and tightly adhering to the borehole wall, a rigid support structure is formed, preventing borehole collapse in soft coal seams and eliminating the need for secondary borehole repair. The evenly distributed permeation holes in the pipe wall ensure gas permeation while preventing coal slag from entering, solving the problem of borehole wall collapse caused by the lack of a borehole protection structure when operating in soft coal seams.

Description

Technical Field

[0001] This invention relates to the field of coal seam drilling technology, specifically to a tracked hydraulic coal seam drilling and permeability enhancement integrated machine. Background Technology

[0002] The integrated drilling and permeation enhancement machine is an integrated piece of equipment adapted to underground coal mine operations. Its core uses crawler tracks as the walking platform and a hydraulic system as the power source, integrating the two core functions of drilling and permeation enhancement. It can achieve coal seam gas control operations with "one-time drilling and completion of multiple processes". It is typically used in complex working conditions such as narrow roadways and soft and broken coal seams in high-gas outburst mines. It can adapt to all-round hole layout needs, replace the frequent disassembly and replacement of traditional split equipment, improve work efficiency and reduce the labor intensity of workers.

[0003] In existing technologies, traditional drill rods lack a borehole support structure when operating in soft coal seams. After drilling, placing the support structure into the borehole wall can easily lead to borehole wall collapse. Traditional devices cannot follow the drill rod to place the support structure into the borehole wall after drilling. The borehole wall in soft coal seams cannot be effectively supported in a timely manner. Under the influence of ground stress and drilling vibration, the coal body in the borehole wall is prone to falling off and collapsing, resulting in borehole scrapping and the need for secondary borehole repair, which increases the operation cycle and cost.

[0004] Therefore, we propose a tracked hydraulic coal seam drilling and permeability enhancement integrated machine to solve the problems mentioned above. Summary of the Invention

[0005] The purpose of this invention is to provide a tracked hydraulic coal seam drilling and permeability enhancement integrated machine to solve the problem mentioned in the background art, which is that the absence of a drilling support structure when the drill rod is working in soft coal seams will cause the borehole wall to collapse.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a tracked hydraulic coal seam drilling and permeability enhancement integrated machine, comprising a moving component, a driving component, a drilling component, and an internal support component. The internal support component is used to support and protect the borehole wall during drilling. The drilling component includes a hollow drill rod, the outer surface of which is welded with helical blades, and the helical blades are wide to increase the slag discharge channel. The internal support component includes multiple expansion arc-shaped frames, and the internal support component is movably embedded inside the hollow drill rod. Each expansion arc-shaped frame has a movable inner cavity on one side. Each of the arc-shaped frames is fixedly connected to an expansion arc-shaped plate on the other side. Each expansion arc-shaped plate is movably connected to the inner wall of each movable inner cavity. Multiple permeation holes are opened on the outer surface of each expansion arc-shaped frame and each expansion arc-shaped plate. The permeation holes are used to ensure gas permeation while preventing coal slag from entering the hole wall. Multiple one-way positioning strips are fixedly connected to the inner wall of each movable inner cavity. Multiple anti-returning clips are fixedly connected to the inner wall of each expansion arc-shaped plate. Hydraulic expansion cones are coupled between the inner walls of multiple expansion arc-shaped frames. A hydraulic pipe is fixedly connected to the top of the hydraulic expansion cone.

[0007] Preferably, the mobile component includes a tracked vehicle, a control system is provided on the top of the tracked vehicle, and mobile tracks are provided on both sides of the tracked vehicle.

[0008] Preferably, multiple side mounting plates are fixedly connected to both sides of the tracked vehicle, and a hydraulic cylinder is provided at the bottom of each side mounting plate. A support leg is fixedly connected to the bottom end of each hydraulic cylinder, and the support leg is used to maintain the balance of the tracked vehicle.

[0009] Preferably, the drive assembly includes a support base, which is fixedly installed on the top of the tracked vehicle. A connecting base is fixedly connected to the top of the support base, and support rods are fixedly connected to both ends of the connecting base. Multiple reinforcing frames are welded between the outer surfaces of the two support rods. A traction frame is fixedly connected to the outer surface of one of the reinforcing frames, and the bottom end of the traction frame is fixedly installed on the top of the tracked vehicle.

[0010] Preferably, a connecting top plate is fixedly connected between the top ends of the two support rods, and a multi-stage hydraulic rod is provided at the bottom of the connecting top plate. A compression hammer is fixedly connected to the bottom end of the multi-stage hydraulic rod, and the compression hammer is used to push the expansion arc frame and expansion arc plate out of the hollow drill rod.

[0011] Preferably, a drive motor is mounted on the top of the connecting top plate via a support plate, and an I-beam rotating block is fixedly connected to the output shaft of the drive motor. The I-beam rotating block is rotatably embedded inside the connecting top plate, and a threaded screw is connected to the bottom of the I-beam rotating block.

[0012] Preferably, the drilling assembly further includes a movable plate, on one outer surface of which two limiting sliding holes are formed, the inner walls of the two limiting sliding holes are slidably connected to the outer surfaces of the two support rods respectively, and openings are formed on both rear surfaces of the movable plate. A threaded hole is formed on the top of one side of the movable plate, the outer surface of the threaded rod is threadedly connected to the inner wall of the threaded hole, and a limiting anti-detachment block is fixedly connected to the bottom end of the threaded rod.

[0013] Preferably, a fixing hole is provided at the top center of the movable plate, a fixing tube is fixedly connected to the inner wall of the fixing hole, a reinforcing sleeve is fixedly fitted to the outside of the fixing tube, and the reinforcing sleeve is fixedly connected to the bottom of the movable plate.

[0014] Preferably, a positioning cylinder is rotatably connected to the outer surface of the fixed pipe, the bottom of the positioning cylinder is fixedly connected to the top of the hollow drill rod, and one end of the hydraulic pipe movably passes through the positioning cylinder to the outside of it.

[0015] Preferably, a driven gear ring is fixedly connected to the outer surface of the positioning rotary cylinder, a servo motor is provided at the bottom of the moving plate, a drive gear is fixedly connected to the output shaft of the servo motor, the outer surface of the drive gear meshes with the outer surface of the driven gear ring, and a bucket-shaped drill bit is engaged at the bottom of the hollow drill rod, and the bucket-shaped drill bit is used to reduce the resistance when the hollow drill rod is drilling.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. During use, the expansion arc frame and expansion arc plate are pushed by the extrusion hammer, and hydraulic oil is injected into the hydraulic expansion cone. The expansion cone expands, causing multiple expansion arc frames and multiple expansion arc plates to unfold. By expanding the expansion arc frames and expansion arc plates and making them fit tightly against the borehole wall, a rigid support structure is formed, which prevents the borehole from collapsing in soft coal seams. No secondary borehole repair is required. The permeation holes opened in the pipe wall are evenly distributed, which can ensure gas permeation while blocking coal slag from entering. This solves the problem that the borehole wall will collapse when the drill pipe is not drilled in soft coal seams.

[0017] 2. During use, the track surface of the tracked vehicle has multiple protrusions, which increases the anti-slip grip of the tracked vehicle. When multiple hydraulic cylinders extend simultaneously, the support feet are fixed at the working point, thereby improving the stability during drilling. By starting the drive motor, its output shaft drives the I-beam rotating block and the threaded screw to rotate, which drives the moving plate to move up and down. By starting the servo motor, its output shaft drives the drive gear and the driven gear ring to rotate, which drives the hollow drill rod and the spiral blades to rotate. By widening the spiral blades and increasing the pitch, the cross-sectional area of ​​the slag discharge channel is sufficient, which avoids the slag getting stuck in the gap between the spiral blades during drilling and helps to push the slag at the far end to the hole opening.

[0018] 3. During use, the bucket-shaped drill bit adheres to the coal slag, leaving it in the coal soil when pulled out. Simultaneously, as the hollow drill rod is extracted from the coal seam, a multi-stage hydraulic rod is activated, extending to move the extrusion hammer to the fixed hole. The extrusion hammer automatically inserts into the fixed pipe, allowing the unexpanded expansion arc frame and expansion arc plate to remain in the hole wall when the hollow drill rod is pulled out. This achieves the purpose of protecting the hole during drilling, providing simultaneous support and protection to the hole wall during the drilling process, eliminating the need to wait for the hole to be formed before separately installing the hole protection components. Attached Figure Description

[0019] Figure 1 This is a first-view perspective perspective view of a tracked hydraulic coal seam drilling and permeability enhancement integrated machine according to the present invention; Figure 2 This is a second-view perspective perspective view of a tracked hydraulic coal seam drilling and permeability enhancement integrated machine according to the present invention; Figure 3 This is a perspective view of the moving component of a tracked hydraulic coal seam drilling and permeation enhancement machine according to the present invention. Figure 4 This is a perspective view of the drive component of a tracked hydraulic coal seam drilling and permeation enhancement machine according to the present invention. Figure 5 This is a three-dimensional view of the drilling component of a tracked hydraulic coal seam drilling and permeation enhancement integrated machine according to the present invention. Figure 6 This is a sectional perspective view of the drilling component of a tracked hydraulic coal seam drilling and permeability enhancement integrated machine according to the present invention. Figure 7 For the present invention Figure 6 Enlarged view of point A in the middle; Figure 8 For the present invention Figure 6 Enlarged view at point B in the middle; Figure 9 This is a schematic diagram showing the unfolded structure of the internal support component of a tracked hydraulic coal seam drilling and permeability enhancement integrated machine according to the present invention. Figure 10 This is a schematic diagram of the internal structure of the inner support component of a tracked hydraulic coal seam drilling and permeability enhancement integrated machine according to the present invention. Figure 11 This is a sectional perspective view of the internal support component of a tracked hydraulic coal seam drilling and permeability enhancement machine according to the present invention.

[0020] In the picture: 1. Moving assembly; 101. Tracked vehicle; 102. Control system; 103. Side mounting plate; 104. Hydraulic cylinder; 105. Support legs; 106. Moving track; 2. Drive assembly; 201. Load-bearing base; 202. Connecting base; 203. Support rod; 204. Reinforcing frame; 205. Connecting top plate; 206. Multi-stage hydraulic rod; 207. Extrusion hammer; 208. Drive motor; 209. I-beam swivel block; 210. Threaded screw; 211. Limiting anti-detachment block; 3. Drilling assembly; 301. Moving plate; 302. Threaded hole 303. Fixing hole; 304. Limiting sliding hole; 305. Servo motor; 306. Drive gear; 307. Fixing tube; 308. Positioning rotary drum; 309. Hollow drill rod; 310. Spiral blade; 311. Driven gear ring; 312. Reinforcing sleeve; 313. Bucket-shaped drill bit; 4. Internal support assembly; 401. Expansion arc frame; 402. Expansion arc plate; 403. Permeation hole; 404. Movable inner cavity; 405. One-way positioning strip; 406. Anti-return clip; 407. Hydraulic expansion cone; 408. Hydraulic pipeline; 5. Traction frame. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Example 1: Refer to Figures 1-11As shown, the present invention provides a technical solution: a tracked hydraulic coal seam drilling and permeation enhancement integrated machine, comprising a moving component 1, a driving component 2, a drilling component 3, and an internal support component 4. The internal support component 4 is used to support and protect the borehole wall during drilling. The drilling component 3 includes a hollow drill rod 309, and a spiral blade 310 is welded to the outer surface of the hollow drill rod 309. The spiral blade 310 has a wide dimension to increase the slag discharge channel. The internal support component 4 includes multiple expansion arc frames 401, and the internal support component 4 is movably embedded inside the hollow drill rod 309. Each expansion arc frame 401 has a movable inner cavity 404 on one side, and an expansion arc plate 402 is fixedly connected to the other side of each expansion arc frame 401. Each expansion arc plate 402 is movably connected to the inner wall of each movable inner cavity 404. Multiple permeation holes 403 are formed on the outer surface of each expansion arc frame 401 and each expansion arc plate 402. The permeation hole 403 is used to ensure gas permeation while preventing coal slag from entering the hole wall. The inner wall of each movable inner cavity 404 is fixedly connected with multiple one-way positioning strips 405. The inner wall of each expansion arc plate 402 is fixedly connected with multiple anti-returning clips 406. The inner walls of multiple expansion arc frames 401 are coupled together with hydraulic expansion cones 407. The top of the hydraulic expansion cones 407 is fixedly connected with a hydraulic pipe 408. The drilling assembly 3 also includes a moving plate 301. Two limiting sliding holes 304 are opened on one side of the outer surface of the moving plate 301. The inner walls of the two limiting sliding holes 304 are slidably connected to the outer surfaces of the two support rods 203 respectively. Openings are opened on both rear surfaces of the moving plate 301. A threaded hole 302 is opened on one side of the top of the moving plate 301. The outer surface of the threaded rod 210 is threadedly connected to the inner wall of the threaded hole 302. The bottom end of the threaded rod 210 is fixedly connected with a limiting anti-detachment block 211.

[0023] In this embodiment, during use, the tracked vehicle 101 is moved to the drilling point, and multiple support legs 105 are placed on the ground to improve the operational stability of the drilling device. During drilling, the hollow drill rod 309 can descend and rotate simultaneously by coordinating the start-up of the drive motor 208 and the servo motor 305. After drilling is completed, the hollow drill rod 309 rises and rotates to discharge slag. Under the pressure of the extrusion hammer 207, the expansion arc frame 401 and expansion arc plate 402 can synchronously protect the hole during drilling. When the expansion arc frame 401 and expansion arc plate 402 are pushed out from inside the hollow drill rod 309, hydraulic oil is injected into the hydraulic expansion cone 407 by injecting hydraulic oil into the hydraulic pipe 408. The expansion of the hydraulic expansion cone 407 will pull the expansion arc plate 402 out from the movable inner cavity 404, thereby allowing multiple expansion arc frames 401 and multiple expansion arc plates 402 to unfold. Through the unidirectional locking of the one-way positioning strip 405 and the anti-return locking strip 406, the unfolded expansion arc frames 401 and expansion arc plates 402 can be prevented from shrinking back under the pressure of the borehole wall. By expanding the expansion arc frames 401 and expansion arc plates 402 and making them fit tightly against the borehole wall, a rigid support structure is formed, which avoids the collapse of the borehole in soft coal seams and eliminates the need for secondary borehole repair. The evenly distributed permeation holes 403 in the pipe wall can ensure gas permeation while blocking coal slag from entering, solving the problem of borehole wall collapse caused by the lack of a borehole protection structure when the drill pipe is operating in soft coal seams.

[0024] Example 2: Figures 1-11As shown, the mobile component 1 includes a tracked vehicle 101, with a control system 102 mounted on the top of the tracked vehicle 101. Movable tracks 106 are mounted on both sides of the tracked vehicle 101. Multiple side-mounted plates 103 are fixedly connected to both sides of the tracked vehicle 101. A hydraulic cylinder 104 is mounted at the bottom of each side-mounted plate 103, and a support leg 105 is fixedly connected to the bottom end of each hydraulic cylinder 104. The support leg 105 is used to maintain the balance of the tracked vehicle 101. The drive component 2 includes a support base 201, which is fixedly mounted on the top of the tracked vehicle 101. A connecting base 202 is fixedly connected to the top of the support base 201. Support rods 203 are fixedly connected to both ends of the connecting base 202. Multiple reinforcing frames 204 are welded between the outer surfaces of the tracked vehicle 101. A traction frame 5 is fixedly connected to the outer surface of one of the reinforcing frames 204. The bottom end of the traction frame 5 is fixedly installed on the top of the tracked vehicle 101. A connecting top plate 205 is fixedly connected between the top ends of two support rods 203. A drive motor 208 is mounted on the top of the connecting top plate 205 via a support plate. An I-beam rotating block 209 is fixedly connected to the output shaft of the drive motor 208. The I-beam rotating block 209 is rotatably embedded inside the connecting top plate 205. A threaded screw 210 is connected to the bottom of the I-beam rotating block 209. The drilling assembly 3 includes a hollow drill rod 309. A spiral blade 310 is welded to the outer surface of the hollow drill rod 309. The spiral blade 310 is wide to increase the slag discharge channel.

[0025] In this embodiment, during use, the track 106 of the tracked vehicle 101 has multiple protruding ridges on its surface, which increases the anti-slip grip of the tracked vehicle 101. When drilling operations are conducted on unpaved surfaces such as mountains, muddy, soft soil, and gravel roads, the large contact area between the track and the ground of the tracked vehicle 101 prevents wheel slippage and getting stuck, thus allowing the drilling device to smoothly reach the drilling point. The control system 102 on the top of the tracked vehicle 101 can communicate with the hydraulic cylinder 1... 04. The multi-stage hydraulic rod 206, drive motor 208, and servo motor 305 are electrically connected and controlled by control system 102 to start, stop, and operate. When the tracked vehicle 101 arrives at the work point, control system 102 controls multiple hydraulic cylinders 104 to start simultaneously. When multiple hydraulic cylinders 104 extend simultaneously, they fix the support legs 105 at the work point, thereby improving the stability during drilling. When drilling is in progress, the drive motor 208 is started, causing its output shaft to rotate, thereby driving the I-beam to rotate. Block 209 and threaded screw 210 rotate. Since the moving plate 301 slides outside the two support rods 203, the rotation of the threaded screw 210 will drive the moving plate 301 to move up and down. At the same time, by starting the servo motor 305, its output shaft drives the drive gear 306 to rotate. Under the meshing connection between the drive gear 306 and the driven gear ring 311, the driven gear ring 311 will rotate. By rotating the driven gear ring 311 around the fixed tube 307, This allows the hollow drill rod 309 to rotate, which in turn drives the spiral blade 310 to rotate. The cross-section of the bucket-shaped drill bit 313 is close to a cone shape, so the hollow drill rod 309 experiences less resistance when drilling into the ground, which is beneficial for drilling the hollow drill rod 309 deep into the coal seam. By widening the spiral blade 310 and increasing the pitch, the cross-sectional area of ​​the slag discharge channel is sufficient, which avoids the slag getting stuck in the gaps between the blades of the spiral blade 310 during the drilling process, and helps to push the slag at the far end to the borehole opening.

[0026] Example 3: Figures 1-11As shown, the drilling assembly 3 includes a hollow drill rod 309. A spiral blade 310 is welded to the outer surface of the hollow drill rod 309, and the spiral blade 310 has a wide dimension to increase the slag discharge channel. A multi-stage hydraulic rod 206 is installed at the bottom of the connecting top plate 205. A compression hammer 207 is fixedly connected to the bottom end of the multi-stage hydraulic rod 206. The compression hammer 207 is used to push the expansion arc frame 401 and the expansion arc plate 402 out of the hollow drill rod 309. A fixing hole 303 is opened at the middle of the top of the moving plate 301. A fixing pipe 307 is fixedly connected to the inner wall of the fixing hole 303. A reinforcing sleeve 312 is fixedly sleeved on the outside of the fixing pipe 307. The reinforcing sleeve 312 is fixedly connected to the moving plate. At the bottom of 301, a positioning cylinder 308 is rotatably connected to the outer surface of the fixed tube 307. The bottom of the positioning cylinder 308 is fixedly connected to the top of the hollow drill rod 309. One end of the hydraulic pipe 408 movably passes through the positioning cylinder 308 to its outside. A driven gear ring 311 is fixedly connected to the outer surface of the positioning cylinder 308. A servo motor 305 is installed at the bottom of the moving plate 301. A drive gear 306 is fixedly connected to the output shaft of the servo motor 305. The outer surface of the drive gear 306 meshes with the outer surface of the driven gear ring 311. A bucket-shaped drill bit 313 is engaged at the bottom of the hollow drill rod 309. The bucket-shaped drill bit 313 is used to reduce the resistance when the hollow drill rod 309 drills.

[0027] In this embodiment, during use, the multi-stage hydraulic rod 206 is fully retracted in the initial state, and the extrusion hammer 207 is located at the highest point closest to the connecting top plate 205. After the hollow drill rod 309 and the spiral blade 310 drill into the ground, they will rotate in the opposite direction to discharge the coal slag. When the hollow drill rod 309 is pulled out from the borehole wall, the bucket-shaped drill bit 313 adheres to the coal slag. When pulled out, the bucket-shaped drill bit 313 is left in the coal soil. The bucket-shaped drill bit 313 is made of a biodegradable material and can degrade on its own when left in the coal soil. While the 09 is being extracted from the coal seam, the multi-stage hydraulic rod 206 needs to be activated to extend and move the extrusion hammer 207 to the fixed hole 303. The extrusion hammer 207 automatically inserts into the fixed pipe 307, so that under the pressure of the extrusion hammer 207, the unexpanded expansion arc frame 401 and expansion arc plate 402 remain in the hole wall when the hollow drill rod 309 is extracted, achieving the purpose of hole protection during drilling. The hole wall is supported and protected simultaneously during the drilling process, without having to wait for the hole to be formed before separately lowering the hole protection components.

[0028] The device's operation and working principle are as follows: Multiple protrusions on the surface of the tracked vehicle 101's moving track 106 increase its anti-slip grip, allowing the drilling device to smoothly reach the drilling point. The control system 102 on top of the tracked vehicle 101 is electrically connected to the hydraulic cylinders 104, multi-stage hydraulic rods 206, drive motor 208, and servo motor 305. The control system 102 controls their start, stop, and operation. When the tracked vehicle 101 reaches the work point, the control system 102 simultaneously activates multiple hydraulic cylinders 104. As the cylinders extend, the support legs 105 are fixed at the work point, improving drilling stability. During drilling operations, the drive motor is activated... Motor 208 rotates its output shaft, thereby driving the I-beam rotor 209 and the threaded screw 210 to rotate. Since the moving plate 301 slides outside the two support rods 203, the rotation of the threaded screw 210 causes the moving plate 301 to move up and down. Simultaneously, by starting the servo motor 305, its output shaft drives the drive gear 306 to rotate. With the drive gear 306 meshing with the driven gear ring 311, the driven gear ring 311 rotates. By rotating the driven gear ring 311 around the fixed tube 307, the hollow drill rod 309 rotates, which in turn drives the spiral vane 310 to rotate. The bucket-shaped drill bit 313 has a nearly conical cross-section, so the hollow drill rod 309 rotates downwards... During drilling, the resistance is reduced, which facilitates drilling the hollow drill rod 309 deep into the coal seam. The increased width and pitch of the spiral blades 310 ensure a sufficient cross-sectional area for the slag discharge channel, preventing slag from getting stuck in the gaps between the spiral blades 310 during drilling. This helps push the slag from the far end to the borehole opening. Initially, the multi-stage hydraulic rod 206 is fully retracted, and the extrusion hammer 207 is located at the highest point closest to the connecting roof plate 205. After the hollow drill rod 309 and spiral blades 310 penetrate the ground, they rotate in the opposite direction to discharge the slag. When the hollow drill rod 309 is pulled out of the borehole wall, the bucket-shaped drill bit 313 adheres to the slag. Upon extraction, the bucket-shaped drill bit 313 remains in the coal seam. The bucket-shaped drill bit 313 is made of a biodegradable material. It can degrade on its own in coal seam. While the hollow drill rod 309 is being extracted from the coal seam, a multi-stage hydraulic rod 206 needs to be activated to extend and move the extrusion hammer 207 to the fixed hole 303. The extrusion hammer 207 automatically inserts into the fixed pipe 307, thus, under the pressure of the extrusion hammer 207, the unexpanded expansion arc frame 401 and expansion arc plate 402 remain in the hole wall when the hollow drill rod 309 is extracted, achieving the purpose of borehole protection during drilling. It simultaneously supports and protects the hole wall during drilling, eliminating the need to wait for the borehole to be formed before separately lowering the borehole protection components. By moving the tracked vehicle 101 to the drilling work point and then supporting it with multiple support legs 105 on the ground, the operational stability of the drilling device is improved. During drilling...By coordinating the start-up drive motor 208 and the servo motor 305, the hollow drill rod 309 can descend and rotate simultaneously. After drilling is completed, the hollow drill rod 309 rises and rotates to discharge slag. Under the pressure of the extrusion hammer 207, the expansion arc frame 401 and expansion arc plate 402 can synchronously protect the hole during drilling. When the expansion arc frame 401 and expansion arc plate 402 are pushed out from inside the hollow drill rod 309, hydraulic oil is injected into the hydraulic pipe 408, thereby injecting hydraulic oil into the hydraulic expansion cone 407, causing the hydraulic expansion cone 407 to expand. The expansion arc plate 402 will be pulled out from the movable inner cavity 404, allowing multiple expansion arc frames 401 and multiple expansion arc plates 402 to unfold. Through the unidirectional engagement of the one-way positioning strip 405 and the anti-return locking strip 406, the unfolded expansion arc frames 401 and expansion arc plates 402 can be prevented from retracting under the pressure of the borehole wall. By expanding the expansion arc frames 401 and expansion arc plates 402 and making them tightly adhere to the borehole wall, a rigid support structure is formed. The evenly distributed permeation holes 403 in the pipe wall ensure gas permeation while preventing coal slag from entering.

[0029] The wiring diagrams of the control system 102, hydraulic cylinder 104, multi-stage hydraulic rod 206, drive motor 208, and servo motor 305 in this invention are common knowledge in the field, and their working principles are known technologies. The appropriate model is selected according to actual use. Therefore, the control methods and wiring layouts of the control system 102, hydraulic cylinder 104, multi-stage hydraulic rod 206, drive motor 208, and servo motor 305 will not be explained in detail.

[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A tracked hydraulic coal seam drilling and permeability enhancement integrated machine, comprising a moving component (1), a driving component (2), a drilling component (3), and an internal support component (4), wherein the internal support component (4) is used to support and protect the borehole wall during drilling, characterized in that: The drilling assembly (3) includes a hollow drill rod (309), the outer surface of which is welded with a spiral blade (310), and the spiral blade (310) is wide to increase the slag discharge channel; The inner support assembly (4) includes multiple expanding arc-shaped frames (401), and the inner support assembly (4) is movably embedded inside the hollow drill rod (309). Each expanding arc-shaped frame (401) has a movable inner cavity (404) on one side, and an expanding arc-shaped plate (402) is fixedly connected to the other side of each expanding arc-shaped frame (401). Each expanding arc-shaped plate (402) is movably connected to the inner wall of each movable inner cavity (404). Each expanding arc-shaped frame (401) and each expanding arc-shaped plate (402) are connected to each other. The outer surface of each of the three is provided with multiple permeation holes (403), and the permeation holes (403) are used to ensure gas permeation when blocking coal slag from entering the hole wall. The inner wall of each of the three movable inner cavities (404) is fixedly connected with multiple one-way positioning strips (405). The inner wall of each of the three expansion arc plates (402) is fixedly connected with multiple anti-returning clips (406). The inner walls of the multiple expansion arc frames (401) are coupled together with hydraulic expansion cones (407). The top of the hydraulic expansion cones (407) is fixedly connected to a hydraulic pipe (408).

2. The hydraulic coal seam drilling and permeability improving all-in-one machine according to claim 1, characterized in that: The mobile component (1) includes a tracked vehicle (101), a control system (102) is provided on the top of the tracked vehicle (101), and mobile tracks (106) are provided on both sides of the tracked vehicle (101).

3. The hydraulic coal seam drilling and permeability improving all-in-one machine of the crawler type according to claim 2, characterized in that: Multiple side plates (103) are fixedly connected to both sides of the tracked vehicle (101). A hydraulic cylinder (104) is provided at the bottom of each side plate (103). A support leg (105) is fixedly connected to the bottom end of each hydraulic cylinder (104). The support leg (105) is used to maintain the balance of the tracked vehicle (101).

4. The tracked hydraulic coal seam drilling and permeability enhancement integrated machine according to claim 3, characterized in that: The drive assembly (2) includes a support base (201), which is fixedly installed on the top of the tracked vehicle (101). A connecting base (202) is fixedly connected to the top of the support base (201). Support rods (203) are fixedly connected to both ends of the connecting base (202). Multiple reinforcing frames (204) are welded between the outer surfaces of the two support rods (203). A traction frame (5) is fixedly connected to the outer surface of one of the reinforcing frames (204). The bottom end of the traction frame (5) is fixedly installed on the top of the tracked vehicle (101).

5. The tracked hydraulic coal seam drilling and permeability enhancement integrated machine according to claim 4, characterized in that: A connecting top plate (205) is fixedly connected between the top ends of the two support rods (203). A multi-stage hydraulic rod (206) is provided at the bottom of the connecting top plate (205). A compression hammer (207) is fixedly connected to the bottom end of the multi-stage hydraulic rod (206). The compression hammer (207) is used to push the expansion arc frame (401) and the expansion arc plate (402) out of the hollow drill rod (309).

6. The tracked hydraulic coal seam drilling and permeability enhancement integrated machine according to claim 5, characterized in that: The top of the connecting top plate (205) is equipped with a drive motor (208) via a support plate. The output shaft of the drive motor (208) is fixedly connected to an I-beam rotating block (209). The I-beam rotating block (209) is rotatably embedded inside the connecting top plate (205). The bottom of the I-beam rotating block (209) is connected to a threaded screw (210).

7. The tracked hydraulic coal seam drilling and permeability enhancement integrated machine according to claim 6, characterized in that: The drilling assembly (3) also includes a movable plate (301). Two limiting sliding holes (304) are opened on one side of the outer surface of the movable plate (301). The inner walls of the two limiting sliding holes (304) are slidably connected to the outer surfaces of the two support rods (203). Openings are opened on both rear surfaces of the movable plate (301). A threaded hole (302) is opened on the top side of the movable plate (301). The outer surface of the threaded rod (210) is threadedly connected to the inner wall of the threaded hole (302). A limiting anti-detachment block (211) is fixedly connected to the bottom end of the threaded rod (210).

8. The tracked hydraulic coal seam drilling and permeability enhancement integrated machine according to claim 7, characterized in that: A fixing hole (303) is provided at the top center of the movable plate (301). A fixing tube (307) is fixedly connected to the inner wall of the fixing hole (303). A reinforcing sleeve (312) is fixedly sleeved on the outside of the fixing tube (307). The reinforcing sleeve (312) is fixedly connected to the bottom of the movable plate (301).

9. The tracked hydraulic coal seam drilling and permeability enhancement integrated machine according to claim 8, characterized in that: The outer surface of the fixed tube (307) is rotatably connected to a positioning cylinder (308). The bottom of the positioning cylinder (308) is fixedly connected to the top of the hollow drill rod (309). One end of the hydraulic pipe (408) movably passes through the positioning cylinder (308) to its outside.

10. The tracked hydraulic coal seam drilling and permeability enhancement integrated machine according to claim 9, characterized in that: The outer surface of the positioning rotary drum (308) is fixedly connected to a driven gear ring (311). A servo motor (305) is provided at the bottom of the moving plate (301). The output shaft of the servo motor (305) is fixedly connected to a drive gear (306). The outer surface of the drive gear (306) meshes with the outer surface of the driven gear ring (311). The bottom of the hollow drill rod (309) is engaged with a bucket-shaped drill bit (313), and the bucket-shaped drill bit (313) is used to reduce the resistance when the hollow drill rod (309) drills.

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