An integrated unit device and a cuttings removal drilling system based thereon
By using threaded connections and spiral blades to transport drill cuttings in integrated unit equipment, the construction challenges of existing small rescue tunnel boring machines under complex geological conditions have been solved, enabling the construction of rapid and safe rescue channels and improving construction efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUIZHOU TIANDI JUNENG ELECTROMECHANICAL EQUIP TECH CO LTD
- Filing Date
- 2025-09-16
- Publication Date
- 2026-07-14
AI Technical Summary
Existing small-scale rescue tunnel boring machines have problems when constructing rescue channels, such as poor adaptability to complex geological conditions, low compressive strength, blockage of channels by drill cuttings, cumbersome construction, and inability to monitor in confined spaces, which increases the difficulty and risk of rescue.
The integrated unit equipment uses a threaded connection between the external channel pipe and the built-in slag discharge shaft to achieve rapid splicing and form a solid channel. It integrates tunneling, support and slag discharge functions, uses spiral blades to transport drill cuttings, and combines high-pressure medium to improve efficiency and simplify the construction process.
It enabled the construction of continuous and rapid rescue channels under complex geological conditions, reduced the risk of secondary accidents, improved construction efficiency and safety, and simplified the operation.
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Figure CN224496436U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of emergency rescue equipment, specifically to an integrated unit device and a slag removal drilling system based thereon. Background Technology
[0002] During the construction of mining tunnels, mountain tunnels, bridges, and buildings, collapse accidents are increasing due to earthquakes and natural geological conditions. Because of the great depth, limited space, soft ground, and lack of construction equipment, secondary accidents often occur during rescue operations. The lack of safe and reliable rescue equipment and construction techniques within the critical 72-hour rescue window exponentially increases the difficulty and risk of rescue efforts, making safety difficult to guarantee. Therefore, there is a need to develop small, rapid-access tunnel boring machines (TBMs) for rescue, enabling the rapid creation of safe rescue routes and access channels.
[0003] Rescue passages are typically circular or arched spaces with a diameter of 800mm. Current construction methods utilize small tunnel boring machines (as shown in the attached diagram). Figures 1-2 (As shown) The construction method involves using multiple pipe segments bolted together to form a circular rescue passage. The process involves pressing in the assembled circular pipe segments as drilling progresses, and as the connections are completed, the collapsed building is supported, ultimately forming the rescue passage. Figure 3 , Figure 4 As shown.
[0004] The current method of constructing rescue channels using small-scale rescue tunnel boring machines and segment insertion has the following problems: First, during the construction of the rescue channel, due to soft strata, the drilling process can lead to collapse and drill bit jamming, making it difficult to press the assembled single-segment tunnel into the borehole and form a reliable rescue channel. The equipment also has poor adaptability to complex geological conditions. Second, the segment-inserted rescue channel has low compressive strength and poor safety. Third, during the tunneling process, drill cuttings can block the channel, preventing timely removal of cuttings and hindering the rapid formation of the rescue channel. Fourth, the complex segment assembly and construction of the rescue channel during drilling due to soft strata collapses affects the drilling progress of rescue work. Fifth, the confined space during the construction of the rescue channel prevents personnel from entering and makes it impossible to monitor the front-end construction. Utility Model Content
[0005] The present invention aims to provide an integrated unit device to form a rescue and lifesaving channel without assembling tunnel segments.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: an integrated unit device, comprising an outer channel tube and a slag discharge shaft located inside it, wherein an external thread is formed on the outer surface of one end of the outer channel tube, and an internal thread is formed on the inner surface of the other end to cooperate with the external thread; the slag discharge shaft comprises a drive shaft tube and a helical blade fixedly connected to the outer wall of the drive shaft tube, the helical blade being in contact with the inner wall of the outer channel tube; the drive shaft tube is rotatably and detachably connected to the outer channel tube, the front end of the drive shaft tube is a non-circular outer surface, and the inner wall of the other end of the drive shaft tube is provided with a non-circular inner surface to cooperate with the non-circular outer surface.
[0007] The principle and advantages of this scheme are as follows: This scheme uses the outer channel pipe as the core support structure. An external thread at one end and an internal thread at the other end form a "splitting interface." The number of integrated unit devices is selected based on the tunneling length. Each integrated unit device includes an outer channel pipe and a built-in muck discharge shaft. One end of the outer channel pipe has an external thread, and the other end has an internal thread. The threaded connection enables rapid splicing and extension, forming a continuous and robust support channel. The muck discharge shaft consists of a drive shaft tube and external helical blades. The drive shaft tube connects to the non-circular inner surface of the subsequent section via a non-circular outer surface (such as a spline or hexagonal head) at its front end, achieving power transmission and shaft locking. During tunneling, a drill bit is installed at the front end of the first section of the outer channel pipe, and the drive system drives the outer channel pipe to rotate, achieving rock-breaking tunneling. A second channel for input medium (optional: air or water) is formed inside the drive shaft tube. During operation, the medium enters through the drive shaft tube and is discharged along with the slag from the first channel (the channel formed between the outer surface of the outer channel tube and the drive shaft tube). Driven smoothly by the spiral blades, it is discharged without settling or accumulating inside the outer channel tube. The drive shaft tube rotates and is detachably connected to the outer channel tube, ensuring that the rotation direction and speed of the outer channel tube and the slag discharge shaft do not affect each other. This allows for various coordinated motion modes, including rotation in the same direction and at the same speed, rotation in the same direction but at different speeds, rotation at the same speed but in different directions, and rotation at different speeds but in different directions. This allows for real-time adjustment of the outer channel tube's working state based on the actual construction conditions of the rescue hole. After tunneling is completed, the slag discharge shaft inside the outer channel tube is removed, leaving the outer channel tube within the collapsed area, thus constructing a rescue channel. After emergency rescue, the outer channel tube can be recycled and reused.
[0008] This solution integrates three major functions—tunneling (rotation of the outer tunnel pipe driving drill bit cutting), support (the outer tunnel pipe serving as a permanent support structure), and slag removal (helical blade conveying)—into a modular, integrated unit. This allows for the simultaneous execution of these three processes, completely eliminating the intermittent "tunneling-stopping-segment assembly" operation mode of traditional rescue tunnel boring machines. It enables continuous, uninterrupted construction, and the media input function within the drive shaft pipe can be flexibly switched according to operational needs. High-pressure water softening of hard strata and compressed air accelerating slag removal can further enhance tunneling efficiency, significantly improving operational efficiency within the critical 72-hour rescue window. Secondly, the threaded connection of the tunnel has a much higher integrity and strength than traditional bolted connection segment structures, significantly improving the tunnel's resistance to pressure and collapse, and reducing the risk of secondary accidents during rescue operations. Furthermore, the cooperation between the helical blades and the first tunnel enables immediate slag conveying. The efficient mechanical continuous slag removal solves the "drill sticking" problem that easily occurs in soft strata, significantly enhancing the equipment's adaptability to complex collapse sites. Furthermore, the entire process is simplified to rotation and extension operations, greatly reducing the difficulty of the operation and the safety risks to rescue personnel. The structure is compact and highly reliable. After the tunneling and drilling are completed, the internal components of the outer channel pipe are removed to form the rescue passage.
[0009] Preferably, as an improvement, the outer channel tube is provided with a connecting assembly, which includes a support flange and a bearing. The support flange is detachably connected to the inner wall of the outer channel tube, the inner ring of the bearing is mounted on the drive shaft tube, and the outer ring of the bearing is mounted inside the support flange. The support flange provides sufficient mounting surface and strength, enabling it to effectively withstand the axial and radial forces generated during tunneling through the bearing, transferring the load to the robust outer channel tube, and ensuring the reliability and lifespan of the entire transmission system.
[0010] Preferably, as an improvement, the inner wall of the outer channel pipe is provided with an annular limiting groove coaxial with it. The connecting assembly also includes a limiting ring, which comprises multiple arc-shaped limiting blocks with gaps between adjacent limiting blocks. A connecting part is fixedly connected to the side of the limiting block near the supporting flange. The connecting part has a connecting hole, and a fastener for detachable connection with the supporting flange is provided in the connecting hole. In emergency rescue sites with limited space, if an integral annular limiting ring is used, it is difficult to insert it into the limiting groove on the inner wall from the end of the outer channel pipe. However, multiple arc-shaped limiting blocks can be disassembled and inserted one by one from the pipe opening, and then fixed to the supporting flange through the connecting hole of the connecting part. This eliminates the need for large lifting tools and can be operated by a single person. Furthermore, the gaps can absorb high-frequency vibrations during tunneling, preventing the limiting ring from breaking due to rigid connection, indirectly protecting the bearings and drive shaft pipe, and improving the equipment's impact resistance under complex geological conditions.
[0011] Preferably, as an improvement, the connecting assembly has two sets, with the two limiting grooves located near both ends of the outer channel pipe. The double support assembly can provide static support for the slag discharge shaft, effectively preventing it from bending, swaying, or eccentric vibration under high-speed rotation and complex loads; the torque and axial force generated during tunneling can be transmitted more evenly to the outer channel pipe through the support flanges at both ends, avoiding the problem of excessive stress at a single support point.
[0012] Preferably, as an improvement, the drive shaft tube is provided with an annular support step, the support step facing the side of the support flange away from the limiting ring, and a friction ring is provided between the support flange and the support step. The fit clearance between the bearing and the drive shaft tube can be finely adjusted by selecting friction rings of different thicknesses to achieve the optimal fit and ensure rotational accuracy.
[0013] Preferably, as an improvement, the outer channel pipe comprises a male drive connector, a female drive connector, a connecting inner pipe, and a connecting outer pipe. The external and internal threads are respectively located at opposite ends of the male and female drive connectors. Both the male and female drive connectors have jet channels. The connecting inner and outer pipes are coaxial and fixedly connected at both ends to the male and female drive connectors, respectively. A high-pressure jet pipe communicating with the jet channels at both ends is provided between the connecting inner and outer pipes. High-pressure water jets or high-pressure air jets can pre-cut, break, or soften hard rock and soil layers or obstacles ahead, significantly reducing the cutting load on the drill bit at the front end of the outer channel pipe, thereby increasing the tunneling speed. The jet can flush and liquefy the excavated soil, making it easier for the helical blades to capture and transport it, further optimizing the excavation efficiency and preventing blockage.
[0014] Preferably, as an improvement, both the inner and outer walls of the driving male and female connectors at opposite ends are provided with constricted notches, and the two ends of the connecting inner and outer tubes are respectively fixedly connected to the corresponding constricted notches. The constricted notch design forms a positioning step, making the mating installation of the connecting inner and outer tubes more convenient and accurate, ensuring the coaxiality of the inner and outer tubes. At the same time, this plug-in mating structure increases the welding or connection area, significantly enhancing the strength and sealing reliability of the connection node, and enabling it to withstand the huge torque and vibration during drilling.
[0015] Preferably, as an improvement, the front end of the driving male connector extends into an annular boss structure, and the jet channel inside the driving male connector communicates with the front end face of the boss structure; on the rear end face of the driving female connector, an annular groove is formed inward to mate with the boss structure, and the jet channel inside the driving female connector communicates with the annular groove. The design of the annular groove allows high-pressure fluid to be injected into the jet channel from the circumference through devices such as rotary joints, simplifying the connection interface between the jet channel and the external high-pressure pumping system, and realizing rapid docking and sealed liquid supply under continuous rotation.
[0016] Preferably, as an improvement, the drive shaft tube is provided with a medium input tube, and an annular blocking plate is sealed to the outer wall of the medium input tube. The side of the annular blocking plate away from the medium input tube is fixed to the drive shaft tube and sealed. There are two annular blocking plates, which are respectively close to the two ends of the medium input tube.
[0017] Preferably, as an improvement, one end of the medium input pipe extends outward to form a sealing pipe, and the inner surface of the other end is provided with a sealing surface that is adapted to the outer surface of the sealing pipe.
[0018] Preferably, as an improvement, the medium input tube is provided with a communication transmission component, which includes a return spring, a front terminal, a rear terminal, a desktop insulating pad, an annular insulating pad, and a cable. Both ends of the cable are fixedly connected to the front terminal and the rear terminal, respectively, and extend to their respective ends. The front terminal is slidably connected within the desktop insulating pad. The return spring is fixedly connected to the front terminal, with its free end abutting against the desktop insulating pad. A locking nut is threaded onto the end of the front terminal near the rear terminal. The rear terminal is fixedly connected to the annular insulating pad. A support frame for fixing the desktop insulating pad and the annular insulating pad is provided on the inner wall of the medium input tube.
[0019] A slag removal drilling system is composed of at least two integrated unit devices connected in sequence.
[0020] A rescue passage is obtained by removing internal components of an outer passage pipe using an integrated unit device or a slag removal drilling system. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of an existing small-scale rescue tunnel boring machine.
[0022] Figure 2 This is a schematic diagram of the cutting head for drilling the existing small rescue tunnel boring machine.
[0023] Figure 3 This is a schematic diagram of a small-scale tube segment structure in the prior art.
[0024] Figure 4 This is a schematic diagram of the existing technology for rescue and lifesaving channels.
[0025] Figure 5 This is a structural schematic diagram of an integrated unit device according to Embodiment 1 of this utility model.
[0026] Figure 6 for Figure 5 A schematic diagram of the structure of the inner and outer channel tubes.
[0027] Figure 7 for Figure 5 A schematic diagram of the structure of the central slag discharge shaft.
[0028] Figure 8 for Figure 5 A schematic diagram of the structure of the central support flange.
[0029] Figure 9 for Figure 5 A schematic diagram of the middle limiting ring.
[0030] Figure 10 for Figure 5 A schematic diagram of the D-direction structure.
[0031] Figure 11 for Figure 5 A schematic diagram of the E-direction structure.
[0032] Figure 12 for Figure 7 FF sectional view.
[0033] Figure 13 for Figure 7 GG cross-sectional view.
[0034] Figure 14 for Figure 5 A schematic diagram of the structure of the communication transmission component.
[0035] Figure 15 This is a schematic diagram of the usage status of a slag removal drilling system according to Embodiment 3 of this utility model.
[0036] Figure 16 Figure 15 A schematic diagram of the rescue and life-saving channel structure constructed by the slag removal drilling system.
[0037] The reference numerals in the accompanying drawings include: outer channel pipe 1, slag discharge shaft 2, limiting ring 3, support flange 4, bearing 5, friction ring 6, communication transmission component 7, friction ring 8, bolt 10, drive male connector 11, connecting outer pipe 12, connecting inner pipe 13, drive female connector 14, jet channel 15, limiting groove 16, high-pressure jet pipe 17, drive shaft pipe 22, medium input pipe 23, spiral blade 24, annular blocking plate 25, support frame 27, inner mating surface 29, outer mating surface 30, sealing pipe 31, sealing surface 32, front terminal 33, return spring 34, benchtop insulating pad 35, locking nut 36, cable 37, rear terminal 38, annular insulating pad 39, screw 40, rescue and lifesaving channel 41, first direction 42, drill bit 43, collapsed body 44, rescue hole 45, second direction 46, medium 47, slag 48. Detailed Implementation
[0038] The following detailed description illustrates the specific implementation method:
[0039] Example 1 is basically as shown in the appendix. Figures 5-14As shown: An integrated unit device includes a connecting component, a communication transmission component 7, an outer channel pipe 1, and a slag discharge shaft 2 located inside the outer channel pipe 1. The outer surface of one end of the outer channel pipe 1 has an external thread, and the inner surface of the other end has an internal thread that mates with the external thread. The slag discharge shaft 2 includes a drive shaft pipe 22 and a helical blade 24 fixedly connected to the outer wall of the drive shaft pipe 22. The helical blade 24 is in contact with the inner wall of the outer channel pipe 1. The drive shaft pipe 22 is rotatably and detachably connected to the outer channel pipe 1. The outer surface of the front end of the drive shaft pipe 22 is a splined outer mating surface 30, and the inner surface of the other end of the drive shaft pipe 22 is a splined inner mating surface 29. The inner mating surface 29 is adapted to the outer mating surface 30.
[0040] Specifically: External channel pipe 1 is attached. Figure 6 As shown, the outer channel pipe 1 consists of a male drive connector 11, a female drive connector 14, and an inner connecting pipe 13 and an outer connecting pipe 12 located between them. Both the male drive connector 11 and the female drive connector 14 are provided with jet channels 15. The inner connecting pipe 13 and the outer connecting pipe 12 are coaxial. The inner and outer walls of the opposite ends of the male drive connector 11 and the female drive connector 14 are provided with constrictions. The two ends of the inner connecting pipe 13 and the outer connecting pipe 12 are welded to the corresponding constrictions. A high-pressure jet pipe 17 is provided between the inner connecting pipe 13 and the outer connecting pipe 12, which communicates with the jet channels 15 at both ends. The two ends of the high-pressure jet pipe 17 are welded to the opposite ends of the male drive connector 11 and the female drive connector 14 and communicate with the corresponding jet channels 15. External threads and internal threads are respectively provided at opposite ends of the male and female drive connectors 14. The inner walls of the male drive connector 11 and the female drive connector 14 are provided with annular limiting grooves 16 coaxial with them. The front end of the drive male connector 11 extends into an annular boss structure, and the jet channel 15 inside the drive male connector 11 communicates with the front end face of the boss structure; on the rear end face of the drive female connector 14, an annular groove that mates with the boss structure is provided inward, and the jet channel 15 inside the drive female connector 14 communicates with the annular groove.
[0041] There are two sets of connecting components. Each set includes a limiting ring 3, a supporting flange 4, and a bearing 5. The limiting ring 3 is fixedly connected within the limiting groove 16. Specifically, the limiting ring 3 is shown in the attached figure. Figure 9As shown, the limiting ring 3 includes three arc-shaped limiting blocks with gaps between adjacent blocks. A connecting portion is integrally formed on the side of the limiting block closest to the supporting flange 4. Two connecting holes are provided on the connecting portion, and bolts 10 are provided in the connecting holes for detachable connection to the supporting flange 4. The limiting blocks of the two limiting rings 3 are fixed in the corresponding limiting grooves 16 by an interference fit. The supporting flange 4 is threadedly connected to the connecting holes of the connecting portion by bolts 10. The inner ring of the bearing 5 is mounted on the drive shaft tube 22, and the outer ring of the bearing 5 is mounted inside the supporting flange 4. The drive shaft tube 22 has an annular supporting step facing the side of the supporting flange 4 away from the limiting ring 3. A friction ring 6 is provided between the supporting flange 4 and the supporting step.
[0042] As attached Figure 7 As shown, a medium input pipe 23 is provided inside the drive shaft tube 22. An annular plug 25 is sealed to the outer wall of the medium input pipe 23. The side of the annular plug 25 away from the medium input pipe 23 is welded to the inner wall of the drive shaft tube 22 to achieve a seal. There are two annular plugs 25, which are respectively close to the two ends of the medium input pipe 23. One end of the medium input pipe 23 extends outward to form a sealing pipe 31. The inner surface of the other end is provided with a sealing surface 32 that is adapted to the outer surface of the sealing pipe 31. An annular fixing groove is provided on the sealing surface 32, and a sealing ring is provided in the fixing groove.
[0043] The communication transmission component 7 is disposed inside the medium input pipe 23. The communication transmission component 7 includes a return spring 34, a front terminal 33, a rear terminal 38, a desktop insulating pad 35, an annular insulating pad 39, and a cable 37. The two ends of the cable 37 are fixedly connected to the front terminal 33 and the rear terminal 38 respectively and extend to the ends. The front terminal 33 is slidably connected inside the desktop insulating pad 35. The return spring 34 is fixedly connected to the front terminal 33 and its free end abuts against the desktop insulating pad 35. A locking nut 36 is threadedly connected to the end of the front terminal 33 near the rear terminal 38. The rear terminal 38 is fixedly connected to the annular insulating pad 39. A support frame 27 for fixing the desktop insulating pad 35 and the annular insulating pad 39 is provided on the inner wall of the medium input pipe 23. The support frame 27 is provided with a through hole for the medium 47 to pass through. The desktop insulating pad 35 and the annular insulating pad 39 are both threadedly connected to the support frame 27 by screws 40.
[0044] The specific implementation process is as follows: During tunneling, a drill bit 43 and a sensor are installed at the front end of the outer channel pipe 1. The sensor is connected to the front terminal 33. The drive system drives the outer channel pipe 1 to rotate, realizing rock-breaking tunneling. A second channel for input medium 47 (optional, air or water) is formed inside the drive shaft pipe 22. During operation, the medium 47 enters from the second channel and is discharged from the first channel along with the slag 48. It is smoothly discharged under the push of the spiral blade 24 and does not settle or accumulate in the outer channel pipe 1. The drive shaft pipe 22 can rotate inside the outer channel pipe 1 through the bearing 5, so that the rotation direction and rotation speed of the outer channel pipe 1 and the slag discharge shaft 2 do not affect each other. That is, the two can rotate in the same direction and at the same speed, rotate in the same direction but at different speeds, rotate at the same speed but in different directions, and rotate at different speeds but in different directions. Thus, the working state of the outer channel pipe 1 can be adjusted in real time according to the actual construction situation of the rescue hole 45. After the tunneling work is completed, the slag discharge shaft 2 inside the outer channel pipe 1 is removed, leaving the outer channel pipe 1 inside the collapsed body 44, thus constructing a rescue and life-saving channel 41. After the emergency rescue is completed, the outer channel pipe 1 can be recycled and reused.
[0045] The only difference between Example 2 and Example 1 is that the communication transmission component 7 and the support frame 27 are not provided.
[0046] Example 3, a slag removal drilling system, differs from Example 1 only in that: the slag removal drilling system includes two integrated unit devices connected together. Specifically: the drive male connector 11 of the outer channel pipe 1 of the rear integrated unit device is threadedly connected to the inner thread of the outer channel pipe 1 of the front integrated unit device via an external thread, thus connecting the outer channel pipes 1 of the two integrated unit devices into a single unit for power transmission; the outer mating surface 30 of the drive shaft pipe 22 of the rear integrated unit device engages with the inner mating surface 29 of the drive shaft pipe 22 of the front integrated unit device, driving the slag removal shaft 2 within the two integrated unit devices. Simultaneously, the sealing pipe 31 of the medium input pipe 23 of the rear integrated unit device is inserted into the sealing surface 32 of the medium input pipe 23 of the front integrated unit device, and the medium input pipes 23 of the two integrated unit devices are connected via a sealing ring; the front terminal 33 of the rear integrated unit device rests on the rear terminal 38 of the front integrated unit device; the return spring 34 of the rear integrated unit device is compressed; and the communication transmission components 7 of the two integrated unit devices are connected, enabling communication output.
[0047] The specific implementation process is as follows: A drill bit 43 and a sensor (such as...) are installed at the front end of the outer channel pipe 1 of the first integrated unit equipment. Figure 15The external drive system drives the outer channel pipe 1 to rotate in the first direction 42, thereby driving the drill bit 43 to break the rock and form a rescue hole 45. At the same time, the external power drives the slag discharge shaft 2 to rotate in the second direction 46, which in turn drives the spiral slag discharge blades to rotate and discharge slag. The medium 47 enters from the medium input pipe 23 and is discharged from the first channel along with the slag 48. When the rescue hole 45 reaches the expected length, the slag discharge shaft 2 inside the outer channel pipe 1 is removed, leaving the outer channel pipe 1 inside the collapsed body 44, forming a rescue channel 41 (e.g., Figure 16 ).
[0048] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.
Claims
1. An integrated unit device, characterized in that: The device includes an outer channel tube and a slag discharge shaft located inside it. The outer surface of one end of the outer channel tube has an external thread, and the inner surface of the other end has an internal thread that mates with the external thread. The slag discharge shaft includes a drive shaft tube and a helical blade fixedly connected to the outer wall of the drive shaft tube. The helical blade fits against the inner wall of the outer channel tube. The drive shaft tube is rotatable and detachably connected to the outer channel tube. The front end of the drive shaft tube has a non-circular outer surface, and the inner wall of the other end of the drive shaft tube has a non-circular inner surface that mates with the non-circular outer surface.
2. The integrated unit device according to claim 1, characterized in that: The outer channel tube is equipped with a connecting assembly, which includes a support flange and a bearing. The support flange is detachably connected to the inner wall of the outer channel tube. The inner ring of the bearing is installed on the drive shaft tube, and the outer ring of the bearing is installed inside the support flange.
3. The integrated unit device according to claim 2, characterized in that: The inner wall of the outer channel pipe is provided with an annular limiting groove coaxial with it. The connecting assembly also includes a limiting ring, which includes multiple arc-shaped limiting blocks with gaps between adjacent limiting blocks. A connecting part is fixedly connected to the side of the limiting block near the support flange. The connecting part is provided with a connecting hole, and a fastener that can be detachably connected to the support flange is provided in the connecting hole.
4. The integrated unit device according to claim 3, characterized in that: The connecting components are in two sets, with the two limiting grooves located near both ends of the outer channel tube.
5. The integrated unit device according to claim 4, characterized in that: The drive shaft tube is provided with an annular support step, the support step facing the side of the support flange away from the limiting ring, and a friction ring is provided between the support flange and the support step.
6. The integrated unit device according to claim 5, characterized in that: The outer channel tube is composed of a male drive connector, a female drive connector, an inner connecting tube, and an outer connecting tube. The external thread and the internal thread are respectively provided at opposite ends of the male and female drive connectors. Both the male and female drive connectors are provided with jet channels. The inner connecting tube and the outer connecting tube are coaxial and their two ends are fixedly connected to the male and female drive connectors, respectively. A high-pressure jet tube communicating with the jet channels at both ends is provided between the inner connecting tube and the outer connecting tube.
7. The integrated unit device according to claim 6, characterized in that: The inner and outer walls of the driving male connector and the driving female connector at opposite ends are provided with constriction openings, and the two ends of the connecting inner tube and the connecting outer tube are respectively fixedly connected to the corresponding constriction openings.
8. The integrated unit device according to claim 7, characterized in that: The front end of the drive male connector extends into an annular boss structure, and the jet channel inside the drive male connector communicates with the front end face of the boss structure; on the rear end face of the drive female connector, an annular groove that mates with the boss structure is provided inward, and the jet channel inside the drive female connector communicates with the annular groove.
9. An integrated unit device according to claim 8, characterized in that: The drive shaft tube is equipped with a medium input tube, and an annular blocking plate is sealed to the outer wall of the medium input tube. The side of the annular blocking plate away from the medium input tube is fixed to the drive shaft tube and sealed. There are two annular blocking plates, which are respectively close to the two ends of the medium input tube.
10. An integrated unit device according to claim 9, characterized in that: One end of the medium input pipe extends outward to form a sealed pipe, and the inner surface of the other end is provided with a sealing surface that is adapted to the outer surface of the sealed pipe.
11. An integrated unit device according to claim 10, characterized in that: The medium input pipe is equipped with a communication transmission component, which includes a return spring, a front terminal, a rear terminal, a desktop insulating pad, an annular insulating pad, and a cable. Both ends of the cable are fixedly connected to the front and rear terminals respectively and extend to their ends. The front terminal is slidably connected within the desktop insulating pad. The return spring is fixedly connected to the front terminal, with its free end abutting against the desktop insulating pad. A locking nut is threaded onto the end of the front terminal near the rear terminal. The rear terminal is fixedly connected to the annular insulating pad. A support frame for fixing the desktop and annular insulating pads is provided on the inner wall of the medium input pipe.
12. A slag removal drilling system, characterized in that, It is formed by sequentially connecting at least one integrated unit device as described in any one of claims 1 to 11.