Tunnel section pipe shed drilling construction device and construction method

Abstract

The invention relates to the technical field of tunnel construction equipment, in particular to a tunnel section pipe shed drilling construction device and method.The tunnel section pipe shed drilling construction device comprises a moving seat movably arranged at the top of a base, a drilling mechanism used for drilling holes in a tunnel section is arranged on the side wall of the moving seat, and the drilling mechanism comprises a first servo motor, a drill rod and a drill bit; the drill bit makes contact with the hole channel, the drill rod does not make contact with the hole channel, and compared with a traditional mode that the whole drill rod makes contact with the hole channel, resistance of the hole channel to the drill rod is reduced conveniently; and the concave-convex degree of the inner wall of the hole channel in the drilling process is conveniently reduced, so that the amount of disintegrating slag is reduced, through cooperation with the cleaning mechanism, the disintegrating slag is conveniently cleaned, the cleaning mechanism is matched with the auxiliary mechanism, the hole channel is conveniently tamped, the follow-up cleaning difficulty is further reduced, and the pipe shed construction efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of tunnel construction equipment technology, specifically to a tunnel cross-section pipe roof drilling construction device and construction method. Background Technology

[0002] During tunnel construction, an arch bridge is typically erected first, and multiple guide pipes are pre-embedded during the arch bridge erection process. This allows the drill rod to be drilled into the section along the guide pipes during subsequent pipe roof construction. After drilling, a high-pressure blower is used to clean the debris and other debris from the hole to prevent pipe jamming during jacking. After cleaning, the pipe roof steel pipe is inserted into the borehole, and a reinforcing cage is installed inside the borehole to increase the rigidity of the pipe roof steel pipe after subsequent grouting.

[0003] CN116733376A discloses a tunnel cross-section pipe roof drilling construction device and method. The background section addresses the following problem: existing pipe roof construction methods directly connect the drill bit and the pipe roof, with a drive device rotating both the pipe roof and the drill bit to drill into the tunnel. This method cannot pre-determine the drilling angle of the pipe roof based on the tunnel's soil structure. If angle adjustments are needed, the entire installation foundation must be moved manually by visual inspection, but the accuracy of manual angle adjustments is poor.

[0004] Based on existing technologies, the following problems exist: Existing tunnel cross-section pipe roof drilling devices typically drill using the entire drill rod. The debris generated during drilling remains within the borehole, hindering the rotation of the drill rod. As drilling deepens, the amount of debris increases, further increasing the resistance and hindering the actual drilling operation. Furthermore, the continuous contact between the drill rod and the inner wall of the borehole creates an uneven surface, increasing debris fallout and subsequent cleaning difficulties. Additionally, the uneven surface hinders the subsequent insertion of the pipe roof, further complicating the process and reducing construction efficiency. The aforementioned application only adjusts the drill rod angle and drills using the entire rod, which has limitations. To address these technical problems, a tunnel cross-section pipe roof drilling construction device and method are proposed. Summary of the Invention

[0005] To achieve the above objectives, the present invention provides the following technical solution: a tunnel cross-section pipe roof drilling construction device, comprising a base, and a movable seat movably disposed on the top of the base, wherein the side wall of the movable seat is provided with a drilling mechanism for drilling holes in the tunnel cross-section, the drilling mechanism comprising: A first servo motor is fixedly mounted on one side of the movable base. The output shaft of the first servo motor is fixedly connected to a drill rod extending to the other side of the movable base via a coupling. A drill bit is fixedly mounted at the end of the drill rod away from the first servo motor. The sidewall diameter of the drill bit is larger than the sidewall diameter of the drill rod. The sidewall of the drill rod is equipped with a cleaning mechanism for removing debris. The cleaning mechanism includes: A sleeve is fitted onto the side wall of the drill rod, and the outer diameter of the sleeve is the same as the maximum side wall diameter of the drill bit. The inner diameter of the sleeve is larger than the side wall diameter of the drill rod, so that there is space between the sleeve and the drill rod for cleaning debris. The side wall of the movable seat is provided with an eccentric assembly for driving the sleeve to rotate eccentrically, and the side wall of the sleeve is provided with an auxiliary mechanism. The auger blades are fixed to the side wall of the drill rod to discharge the drilling debris along the inner wall of the sleeve. A sewage discharge mechanism is provided at the bottom of the outer wall of the sleeve. There is space between the auger blades and the inner wall of the sleeve for the sleeve to rotate eccentrically.

[0006] Furthermore, the cleaning mechanism also includes: A sealing plate is fixedly installed at the end of the sleeve away from the drill bit, and the side wall of the sealing plate has a first through hole for mounting the drill rod. The eccentric component includes: The spline shaft is fixedly located on the side of the sealing plate away from the drill bit. The movable seat is equipped with a first bearing, and the movable seat is equipped with a spline cylinder that meshes with the spline shaft through the first bearing. The second bearing is located on the outer wall of the spline shaft, and the outer wall of the spline shaft is provided with a movable plate extending to the outside of the movable seat via the second bearing.

[0007] Furthermore, the eccentric component also includes: The second servo motor is fixedly mounted on the side wall of the moving plate. The output shaft of the second servo motor is fixedly mounted on a rotating shaft via a coupling. The side wall of the rotating shaft is fixedly fitted with a first eccentric gear. The second eccentric gear is fixedly sleeved on the outer wall of the sleeve and meshes with the first eccentric gear so that when the first eccentric gear rotates along the central axis of the rotating shaft, it drives the second eccentric gear to rotate along the central axis of the spline shaft. The side wall of the moving plate is fixedly provided with a protective cover sleeved on the outside of the first eccentric gear and the second eccentric gear. An electric push rod is fixedly mounted on the top of the movable base, and the telescopic shaft of the electric push rod is fixedly connected to the movable plate.

[0008] Furthermore, the auxiliary mechanism includes a connecting component, which includes: A rotary joint is located inside the movable seat. A rotating flange and a fixed flange are respectively provided at both ends of the rotary joint. A first sealing plate is fixedly provided at the end of the rotating flange near the sealing plate. An isolation cylinder is fixedly provided on the side of the first sealing plate near the rotating flange. The inner wall of the isolation cylinder is fitted onto the side wall of the drill rod and leaves space for the drill rod to rotate. The second sealing plate is fixedly installed on the side of the fixed flange away from the rotating flange and is fixedly connected to the inner wall of the movable seat. The isolation cylinder passes through the second sealing plate and extends to the side of the second sealing plate away from the first sealing plate. The inner wall of the second sealing plate and the outer wall of the isolation cylinder are designed to be dynamically sealed. The inner wall of the rotary joint is separated by the first sealing plate, the second sealing plate and the isolation cylinder to form a sealed flow guiding cavity.

[0009] Furthermore, the auxiliary mechanism also includes: The first conduit is fixedly disposed on the outside of the second sealing plate. The second conduit is fixedly disposed on the outside of the first sealing plate. The ends of the first conduit and the second conduit that are close to each other extend into the flow guide cavity. The second conduit extends along the inside of the first sealing plate, the spline shaft and the sealing plate into the sleeve and is located at the end of the sleeve close to the drill bit. The flow guide box is fixedly installed inside the sleeve and is connected to the second conduit. The side wall of the flow guide box is fixedly provided with nozzles that are spaced apart and extend outside the sleeve. The nozzles are located on the side of the sleeve with the minimum eccentricity.

[0010] Furthermore, the central axes of the drill pipe, drill bit, and sleeve coincide; The spline shaft has a second through hole at its end that communicates with the first through hole. The inner diameter of both the first and second through holes is larger than the side wall diameter of the drill rod, so as to restrict the rotation of the drill rod and the sleeve and thus prevent movement. The drilling mechanism also includes: The third bearing is located inside the movable seat to rotatably connect the drill rod to the movable seat. The movable seat has a third through hole for installing the third bearing, the rotary joint and the first bearing.

[0011] Furthermore, the sewage discharge mechanism includes: The frame is fitted onto the bottom of the outer wall of the sleeve, and the top of the frame is fitted against the outer wall of the sleeve. The outer wall of the sleeve has a through groove that communicates with the frame, and the top of the base has a movable through groove fitted onto the outside of the frame. The rotating rod is rotatably mounted on the side wall of the base and passes through the frame. A stop bar is fixedly provided on the side wall of the rotating rod.

[0012] Furthermore, the sewage discharge mechanism also includes: The ring body is sleeved on the outside of the rotating rod and the stop bar, and is arranged symmetrically with the center point of the frame. Rotating through holes are opened on both sides of the frame body. The inner diameter of the rotating through hole is larger than the outer diameter of the ring body. Guide rods are fixedly installed on the top and bottom of the outer wall of the ring body. Guide grooves for sleeved guide rods are opened on the top and bottom of the inner wall of the rotating through hole. The connecting cylinder is fixedly installed on the side of the ring that is close to each other, and the two ends of the connecting cylinder are respectively attached to the inner walls of the two sides of the frame. The retaining ring is fixed on both sides of the frame and sleeved on the outside of the rotating rod and the retaining strip.

[0013] Furthermore, the side wall of the base is provided with a moving mechanism for driving the movable seat to move, the moving mechanism including: The threaded rod is rotatably mounted on the side wall of the base and symmetrically arranged around the center point of the base. The rotating rod and the two threaded rods are connected in a transmission manner. Slide grooves are opened on both sides of the base. Slide blocks are placed inside the slide grooves. A movable frame is fixedly mounted on the side wall of the slider. The movable frame is U-shaped. The top of the movable frame is fixedly connected to the bottom of the movable seat. The side wall of the movable frame is fixedly connected to the frame body. The slider is threadedly connected to the threaded rod. The third servo motor is fixedly mounted on the side wall of the base, and the output shaft of the third servo motor is fixedly connected to one of the threaded rods through a coupling.

[0014] This invention also provides a method for using a tunnel cross-section pipe roof drilling construction device. The method, employing the aforementioned tunnel cross-section pipe roof drilling construction device, includes the following steps: S1: The drill bit and drill rod are rotated by the drilling mechanism, and drilling is performed by the drill bit as the moving seat moves. S2: During the drilling process, the debris generated is discharged outside the hole through the cleaning mechanism.

[0015] This invention provides a tunnel cross-section pipe roof drilling construction device and method. Compared with the prior art, it has the following advantages: 1. This invention allows the drill bit to contact the borehole while the drill rod does not. Compared to the traditional method where the entire drill rod is in contact with the borehole, this reduces the resistance of the borehole to the drill rod and also reduces the unevenness of the borehole wall during drilling, thereby reducing the amount of debris. By cooperating with a cleaning mechanism, it facilitates the removal of debris. The cleaning mechanism, in conjunction with auxiliary mechanisms, facilitates the compaction of the borehole, further reducing the difficulty of subsequent cleaning and improving the efficiency of pipe roof construction.

[0016] 2. This invention leaves a gap between the drill bit and the sleeve, and allows the sleeve to enter the hole after the drill bit drills. This allows the generated debris to enter the sleeve through the gap between the drill bit and the sleeve, so that the debris can move towards the moving seat. In conjunction with the sewage discharge mechanism, the debris in the sleeve can be discharged. Thus, during the drilling process, it is convenient to discharge the debris generated during drilling out of the hole simultaneously, thereby improving the efficiency of pipe roof construction.

[0017] 3. This invention uses an eccentric component to make the sleeve rotate eccentrically during the process of entering the channel. When the eccentricity of the sleeve is at its maximum, it squeezes the inner wall of the channel, reducing the falling of debris and compacting the channel, which is convenient for the subsequent insertion of steel pipes into the pipe shed. At the same time, water is sprayed into the channel through an auxiliary mechanism, which further facilitates the compaction of the channel and reduces the falling of debris. The nozzle of the auxiliary mechanism is set at the position where the eccentricity of the sleeve is at its minimum, so as to avoid debris from squeezing and clogging the nozzle during the rotation of the sleeve, which is convenient for practical use.

[0018] 4. This invention uses an electric push rod to move the sealing plate and the sleeve to adjust the size of the gap between the sleeve and the drill bit. This allows for adjustment during actual drilling, facilitating the entry of debris into the sleeve. When the drill bit is drilling normally and the debris is discharged in small amounts, the sleeve moves back and forth to prevent debris from clogging between the drill bit and the sleeve. This facilitates actual debris discharge and does not affect the rotation of the sleeve.

[0019] 5. This invention uses an auxiliary mechanism to spray water into the duct, which improves the compaction effect, reduces the amount of debris, and further reduces the difficulty of subsequent cleaning, thereby improving the efficiency of pipe roof construction. It does not affect the rotation of the drill rod, nor does it affect the limit of the sleeve, making it convenient for practical use. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall right-side structure of the present invention; Figure 2 This is a schematic diagram of the overall left side structure of the present invention; Figure 3 This is a longitudinal sectional view of the movable seat and sleeve of the present invention; Figure 4 This is a schematic diagram of the movable seat and sleeve structure of the present invention; Figure 5 This is a longitudinal sectional view of the movable seat of the present invention; Figure 6 This is an exploded structural diagram of the movable base, drilling mechanism, and eccentric component of the present invention. Figure 7 This is a schematic diagram of the longitudinal section of the spline shaft and the transverse section of the sealing plate of the present invention; Figure 8 This is a schematic cross-sectional view of the spline shaft and sealing plate of the present invention; Figure 9 For the present invention Figure 7 A magnified structural diagram of A in the middle; Figure 10 For the present invention Figure 8 A magnified structural diagram of C; Figure 11 For the present invention Figure 7 A magnified structural diagram of B in the diagram; Figure 12 This is a schematic diagram of the exploded structure of the connecting component, the first conduit, and the second conduit of the present invention; Figure 13 This is a schematic longitudinal cross-sectional view of the movable plate and the second bearing of the present invention. Figure 14 This is a schematic diagram of the eccentric component structure of the present invention; Figure 15 This is a schematic diagram of the first eccentric gear, the second eccentric gear, and the second servo motor of the present invention; Figure 16 This is a longitudinal sectional view of the base and movable seat of the present invention; Figure 17 This is a schematic diagram of the moving mechanism and the sewage discharge mechanism of the present invention; Figure 18 This is a schematic diagram of the rotating rod, frame, and sleeve structure of the present invention; Figure 19 This is a longitudinal sectional view of the frame, connecting cylinder, and retaining ring of the present invention.

[0021] The reference numerals in the above figures are as follows: 1. Base; 2. Sewage discharge mechanism; 3. Cleaning mechanism; 4. Movable base; 5. Drilling mechanism; 6. Movable mechanism; 7. Auxiliary mechanism; 21. Frame; 22. Moving through groove; 23. Rotating rod; 24. Retaining ring; 25. Guide rod; 26. Connecting cylinder; 27. Stop bar; 28. Ring body; 29. ​​Rotating through hole; 31. Sleeve; 32. Eccentric assembly; 33. Electric actuator; 34. Screwdriver blade; 35. Sealing plate; 321. Moving plate; 322. Protective cover; 323. Second eccentric gear; 324. First eccentric gear; 325. First bearing; 326. Splined cylinder; 327. Splined shaft; 328. Second bearing; 329. Second servo motor; 51. Drill bit; 52. Drill rod; 53. First servo motor; 54. Third bearing; 61. Third servo motor; 62. Threaded rod; 71. Connecting assembly; 72. First conduit; 73. Second conduit; 74. Flow box; 75. Nozzle; 711. Rotary joint; 712. Second sealing plate; 713. Fixed flange; 714. Flow guide cavity; 715. Isolation cylinder; 716. First sealing plate; 717. Rotating flange. Detailed Implementation

[0022] 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.

[0023] Example 1: Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6 A tunnel cross-section pipe roof drilling construction device includes a base 1 and a movable seat 4 movably disposed on the top of the base 1. The side wall of the movable seat 4 is provided with a drilling mechanism 5 for drilling holes in the tunnel cross-section. The drilling mechanism 5 includes: A first servo motor 53 is fixedly mounted on one side of the movable base 4. The output shaft of the first servo motor 53 is fixedly connected to a drill rod 52 extending to the other side of the movable base 4 via a coupling. A drill bit 51 is fixedly mounted on the end of the drill rod 52 away from the first servo motor 53. The side wall diameter of the drill bit 51 is larger than the side wall diameter of the drill rod 52. A cleaning mechanism 3 for cleaning debris is provided on the side wall of the drill rod 52. In practice, the first servo motor 53 drives the drill rod 52 to rotate, which in turn drives the drill bit 51 to rotate. At the same time, the moving mechanism 6 drives the moving seat 4 and the drill bit 51 to move, so that the drill bit 51 drills along the pre-embedded guide pipe to drill the cross section of the tunnel, which facilitates the subsequent installation of the pipe roof steel pipe in the drilled hole.

[0024] Drilling is performed using drill bit 51. During drilling, drill bit 51 contacts the borehole while drill rod 52 does not. Compared to traditional drilling, where the entire drill rod 52 contacts the borehole, the debris generated during drilling remains in the borehole, creating resistance to the rotation of the entire drill rod 52. By keeping the drill rod 52 out of contact with the borehole, the resistance from the borehole to the drill rod 52 is reduced, and the unevenness of the borehole wall during drilling is also reduced, thereby reducing the amount of debris. In conjunction with the cleaning mechanism 3, the debris can be easily cleaned.

[0025] Please see Figure 3 , Figure 5 , Figure 6 , Figure 13 , Figure 14 and Figure 15 Cleaning agency 3 includes: Sleeve 31 is fitted onto the side wall of drill rod 52, and the outer diameter of sleeve 31 is the same as the maximum side wall diameter of drill bit 51. The inner diameter of sleeve 31 is larger than the side wall diameter of drill rod 52, so that there is space between sleeve 31 and drill rod 52 for cleaning debris. The side wall of the movable seat 4 is provided with an eccentric component 32 for driving sleeve 31 to rotate eccentrically. The side wall of sleeve 31 is provided with an auxiliary mechanism 7. The auger blade 34 is fixedly installed on the side wall of the drill rod 52 to discharge the debris generated during drilling along the inner wall of the sleeve 31. A sewage discharge mechanism 2 is provided at the bottom of the outer wall of the sleeve 31. There is a space between the auger blade 34 and the inner wall of the sleeve 31 for the sleeve 31 to rotate eccentrically.

[0026] The cleaning mechanism 3 also includes: The sealing plate 35 is fixedly disposed at the end of the sleeve 31 away from the drill bit 51, and the side wall of the sealing plate 35 has a first through hole for sleeved drill rod 52. The eccentric component 32 includes: The spline shaft 327 is fixedly installed on the side of the sealing plate 35 away from the drill bit 51. The movable seat 4 is provided with a first bearing 325. The movable seat 4 is provided with a spline cylinder 326 that meshes with the spline shaft 327 through the first bearing 325. The second bearing 328 is disposed on the outer wall of the spline shaft 327. The outer wall of the spline shaft 327 is provided with a movable plate 321 extending to the outside of the movable seat 4 via the second bearing 328.

[0027] The eccentric component 32 further includes: The second servo motor 329 is fixedly mounted on the side wall of the moving plate 321. The output shaft of the second servo motor 329 is fixedly mounted on a rotating shaft via a coupling. The side wall of the rotating shaft is fixedly fitted with a first eccentric gear 324. The second eccentric gear 323 is fixedly sleeved on the outer wall of the sleeve 31 and meshes with the first eccentric gear 324 so that when the first eccentric gear 324 rotates along the central axis of the rotating shaft, it drives the second eccentric gear 323 to rotate along the central axis of the spline shaft 327. The side wall of the moving plate 321 is fixedly provided with a protective cover 322 sleeved on the first eccentric gear 324 and the second eccentric gear 323. The electric push rod 33 is fixedly mounted on the top of the movable base 4, and the telescopic shaft of the electric push rod 33 is fixedly connected to the movable plate 321.

[0028] In practical implementation, during the drilling process of drill bit 51, sleeve 31 moves together with drill rod 52. Since sleeve 31 is fitted onto the side wall of drill rod 52, sleeve 31 enters the hole after drill bit 51 drills, so that the generated debris enters sleeve 31 through the gap between drill bit 51 and sleeve 31. At the same time, the rotation of drill bit 51 and drill rod 52 will drive auger blade 34 to rotate, thereby driving the debris in sleeve 31 to move towards moving seat 4. In conjunction with the sewage discharge mechanism 2, the debris in the sleeve is discharged. Thus, during the drilling process, it is convenient to discharge the debris generated during drilling out of the hole at the same time, so as to improve the efficiency of pipe roof construction.

[0029] The eccentric component 32 drives the sleeve 31 to rotate eccentrically, so that the sleeve 31 rotates eccentrically during the process of entering the channel. When the eccentricity of the sleeve 31 is at its maximum, it squeezes the inner wall of the channel, reducing the falling of debris in the channel and compacting the channel, which is convenient for the subsequent installation of steel pipes for the pipe roof. At the same time, water is sprayed into the channel through the auxiliary mechanism 7, which further facilitates the compaction of the channel and reduces the falling of debris. The nozzle 75 of the auxiliary mechanism 7 is set at the position where the eccentricity of the sleeve 31 is at its minimum, so as to avoid debris squeezing and blocking the nozzle 75 during the rotation of the sleeve 31, which is convenient for actual use.

[0030] When the sleeve 31 rotates eccentrically, the second servo motor 329 drives the first eccentric gear 324 to rotate along the central axis of the rotating shaft. The first eccentric gear 324 drives the second eccentric gear 323 and the sleeve 31 to rotate along the central axis of the spline shaft 327 to compact the channel. The spline shaft 327 rotates inside the spline cylinder 326, and the first bearing 325 makes the spline cylinder 326 rotatably connected to the moving seat 4, which facilitates the limiting of the spline shaft 327 and the sleeve 31, and allows the sleeve 31 to rotate and move horizontally.

[0031] The electric push rod 33 drives the moving plate 321 and spline shaft 327 to move, thereby driving the sealing plate 35 and sleeve 31 to move, so as to adjust the size of the gap between the sleeve 31 and the drill bit 51. This allows for adjustment during actual drilling, facilitating the entry of debris into the sleeve 31. When the drill bit 51 is drilling normally and the debris is discharged in small amounts, the sleeve 31 is moved back and forth to prevent debris from clogging between the drill bit 51 and the sleeve 31, facilitating actual debris discharge. The moving plate 321 is rotatably connected to the spline shaft 327 through the second bearing 328, which facilitates the horizontal movement of the sleeve 31 without affecting the rotation of the sleeve 31.

[0032] By causing the sleeve 31 and the second eccentric gear 323 to rotate eccentrically along the central axis of the spline shaft 327, it is convenient to limit the sleeve 31 and improve the stability of the rotation and movement of the sleeve 31. Furthermore, the spline shaft 327 rotates along its own central axis, which facilitates its cooperation with the connecting assembly 71 of the auxiliary mechanism 7. This ensures that the liquid is not affected while the sleeve 31 rotates normally.

[0033] The end of the sleeve 31 away from the drill bit 51 is sealed by the sealing plate 35, which reduces the movement of debris outward along that end of the sleeve 31, making it easier for the sewage discharge mechanism 2 to actually discharge debris and facilitates the connection of the spline shaft 327 to the sleeve 31. The first eccentric gear 324 and the second eccentric gear 323 are shielded and protected by the protective cover 322, which facilitates actual use. The protective cover 322 leaves space for the first eccentric gear 324 and the second eccentric gear 323 to rotate.

[0034] The central axes of the drill rod 52, drill bit 51 and sleeve 31 coincide, which makes it easier for the auger blades 34 to drive the debris along the inner wall of the sleeve 31 during rotation, thereby facilitating the discharge of debris from the hole. The spline shaft 327 has a second through hole at its end that communicates with the first through hole. The inner diameter of both the first and second through holes is larger than the side wall diameter of the drill rod 52, so as to restrict the rotation of the drill rod 52 and the sleeve 31 and thus prevent movement obstruction. The drilling mechanism 5 also includes: The third bearing 54 is disposed inside the movable seat 4 so as to rotatably connect the drill rod 52 to the movable seat 4. The movable seat 4 has a third through hole for installing the third bearing 54, the rotary joint 711 and the first bearing 325. The drill rod 52 is limited by the third bearing 54 to improve the stability of the rotation of the drill rod 52. Furthermore, the connection component 71 of the auxiliary mechanism 7 facilitates the delivery of liquid without affecting the rotation of the drill rod 52.

[0035] Please see Figure 17 , Figure 18 and Figure 19 The sewage discharge mechanism 2 includes: The frame 21 is fitted onto the bottom of the outer wall of the sleeve 31, and the top of the frame 21 is in contact with the outer wall of the sleeve 31. The outer wall of the sleeve 31 is provided with a through groove communicating with the frame 21, and the top of the base 1 is provided with a movable through groove 22 fitted onto the outside of the frame 21. The rotating rod 23 is rotatably mounted on the side wall of the base 1 and passes through the frame 21. A stop bar 27 is fixedly provided on the side wall of the rotating rod 23.

[0036] The sewage discharge mechanism 2 also includes: The ring 28 is sleeved on the outside of the rotating rod 23 and the stop bar, and is symmetrically arranged with respect to the center point of the frame 21. Rotating through holes 29 are provided on both sides of the frame 21. The inner diameter of the rotating through hole 29 is larger than the outer diameter of the ring 28. Guide rods 25 are fixedly provided on the top and bottom of the outer wall of the ring 28. Guide grooves for sleeved guide rods 25 are provided on the top and bottom of the inner wall of the rotating through hole 29. The connecting tube 26 is fixedly disposed on one side of the ring 28 that are close to each other, and the two ends of the connecting tube 26 are respectively attached to the inner walls of the two sides of the frame 21. The retaining ring 24 is fixedly installed on both sides of the frame 21 and sleeved on the outside of the rotating rod 23 and the retaining strip 27.

[0037] In practice, the debris inside the sleeve 31 is transported to the inner wall of the end away from the drill bit 51 by the auger blades 34. The debris enters the frame 21 through the through groove at the bottom of the sleeve 31 and is discharged through the interior of the frame 21 and the movable through groove 22 to remove the debris.

[0038] During the rotation of the sleeve 31, the debris inside the sleeve 31 is deposited on the bottom inner wall of the sleeve 31 under the action of gravity. When the through groove on the side wall of the sleeve 31 connects with the inner wall of the frame 21, the debris is discharged along the through groove and the frame 21. By making the top of the frame 21 fit with the outer wall of the sleeve 31, it is convenient to actually discharge the debris. Since the sleeve 31 rotates eccentrically, an elastic rubber frame can be set between the sleeve 31 and the frame 21 to ensure the fit between the sleeve 31 and the frame 21. This ensures the fit effect without affecting the discharge of debris. Since the frame 21 moves synchronously with the moving seat 4, the debris is discharged synchronously during the drilling process, reducing the difficulty of subsequent cleaning and improving the efficiency of pipe roof construction.

[0039] After the debris enters the frame 21, the moving mechanism 6 synchronously drives the rotating rod 23 and the baffle 27 to rotate. During the rotation, the baffle 27 drives the ring 28 to vibrate under the limit of the guide rod 25 and the guide groove, which in turn drives the connecting cylinder 26 to vibrate. This facilitates the discharge of debris from the frame 21 and reduces the probability of debris clogging the frame 21. The baffle ring 24 blocks the outside of the frame 21, and the outer diameter of the connecting cylinder 26 is larger than the inner diameter of the rotating through hole 29 to prevent debris from entering the rotating through hole 29. The baffle ring 24 is made of rubber to avoid affecting the rotation of the baffle 27 and the rotating rod 23.

[0040] Please see Figure 16 , Figure 17 and Figure 18 The side wall of the base 1 is provided with a moving mechanism 6 for driving the moving seat 4 to move. The moving mechanism 6 includes: The threaded rod 62 is rotatably mounted on the side wall of the base 1 and symmetrically arranged around the center point of the base 1. The rotating rod 23 and the two threaded rods 62 are connected in a transmission manner. Slide grooves are provided on both sides of the base 1. Slide blocks are placed inside the slide grooves. A movable frame is fixedly provided on the side wall of the slider. The movable frame is U-shaped. The top of the movable frame is fixedly connected to the bottom of the movable seat 4. The side wall of the movable frame is fixedly connected to the frame body 21. The slider is threadedly connected to the threaded rod 62. The third servo motor 61 is fixedly mounted on the side wall of the base 1, and the output shaft of the third servo motor 61 is fixedly connected to one of the threaded rods 62 through a coupling.

[0041] In practice, the third servo motor 61 drives the threaded rod 62 to rotate, thereby driving the slider to move along the slide groove, so as to drive the moving frame, the moving seat 4 and the frame 21 to move synchronously, thereby driving the drill bit 51 to move during the rotation, so as to carry out drilling.

[0042] The third servo motor 61 drives the threaded rod 62 to rotate, which in turn drives the rotating rod 23 to rotate, making it easier to operate. The rotating rod 23 and the two threaded rods 62 are driven by gears and chains. This transmission method is existing technology and will not be described in detail here.

[0043] Example 2, please refer to Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 and Figure 12 The technical difference between this embodiment and embodiment one is that the auxiliary mechanism 7 includes a connecting component 71, which includes: A rotary joint 711 is located inside the movable seat 4. A rotating flange 717 and a fixed flange 713 are respectively provided at both ends of the rotary joint 711. A first sealing plate 716 is fixedly provided at the end of the rotating flange 717 near the sealing plate 35. An isolation cylinder 715 is fixedly provided on the side of the first sealing plate 716 near the rotating flange 717. The inner wall of the isolation cylinder 715 is fitted onto the side wall of the drill rod 52 and leaves space for the drill rod 52 to rotate. The second sealing plate 712 is fixedly disposed on the side of the fixed flange 713 away from the rotating flange 717 and is fixedly connected to the inner wall of the movable seat 4. The isolation cylinder 715 passes through the second sealing plate 712 and extends to the side of the second sealing plate 712 away from the first sealing plate 716. The inner wall of the second sealing plate 712 and the outer wall of the isolation cylinder 715 are designed to be dynamically sealed. The inner wall of the rotary joint 711 is separated by the first sealing plate 716, the second sealing plate 712 and the isolation cylinder 715 to form a sealed flow guiding cavity 714.

[0044] The auxiliary mechanism 7 also includes: The first conduit 72 is fixedly disposed on the outside of the second sealing plate 712. The second conduit 73 is fixedly disposed on the outside of the first sealing plate 716. The ends of the first conduit 72 and the second conduit 73 that are close to each other extend into the flow guiding cavity 714. The second conduit 73 extends along the inside of the first sealing plate 716, the spline shaft 327 and the sealing plate 35 into the sleeve 31 and is located at the end of the sleeve 31 near the drill bit 51. The flow guide box 74 is fixedly installed inside the sleeve 31 and communicates with the second conduit 73. The side wall of the flow guide box 74 is fixedly provided with nozzles 75 arranged at intervals and extending outside the sleeve 31. The nozzles 75 are located on the side of the sleeve 31 with the minimum eccentricity.

[0045] In practical implementation, the fixed flange 713 is fixedly connected to the inside of the movable seat 4, which facilitates the installation of the rotary joint 711. The rotating flange 717 and the first sealing plate 716 are fixedly connected to the splined shaft 327, so that the rotating end of the rotary joint 711 rotates synchronously with the splined shaft 327. Since the splined shaft 327 rotates along its own central axis, it does not affect the installation of the rotary joint 711, so as to facilitate the flow of liquid inside the rotary joint 711. To facilitate the rotation of the drill rod 52 inside the rotary joint 711, the first sealing plate 716, the isolation cylinder 715, and the second sealing plate 712 form a guide to separate the inside of the rotary joint 711. The flow cavity 714 facilitates the flow of liquid and allows the drill rod 52 to rotate within the isolation cylinder 715 without contacting the liquid, reducing corrosion of the drill rod 52 and facilitating long-term use. The liquid can be transported to the flow box 74 via the first conduit 72, the flow cavity 714, and the second conduit 73, and then sprayed out through the nozzle 75, i.e., water, into the borehole. As the sleeve 31 is continuously compacted, the water action enhances the compaction effect, reduces the amount of debris, and further reduces the difficulty of subsequent cleaning, thereby improving the efficiency of pipe roof construction without affecting the rotation of the drill rod 52. Furthermore, it does not affect the limiting position of the sleeve 31, facilitating practical use.

[0046] The first servo motor 53 and electric push rod 33 of the present invention are connected to the controller and external power supply through wires to facilitate actual control and use. This is prior art and will not be described in detail here.

[0047] This invention also provides a method for using a tunnel cross-section pipe roof drilling construction device. The method includes the following steps: S1: The base 1 is installed on the movable end of the pipe roof drilling machine so that the height and angle of the base 1 can be adjusted by the pipe roof drilling machine so that the drill bit 51 and the drill rod 52 are horizontal with the pre-embedded guide pipe and the drill bit 51 can enter the guide box. The mechanism for adjusting the height and angle of the base 1 of the pipe roof drilling machine is existing technology and will not be described in detail here. After the drill bit 51 is adjusted to a concentric and horizontal position with the guide pipe, the drill bit 51 and the drill rod 52 are rotated by the drilling mechanism 5 and the moving seat 4 is driven to move by the moving mechanism 6. As the moving seat 4 moves, the drill bit 51 rotates continuously during the movement, so as to drill a hole through the drill bit 51. S2: During the drilling process, debris will be generated. The debris enters the sleeve 31 through the gap between the drill bit 51 and the sleeve 31. The debris is then discharged to the outside of the hole by the cleaning mechanism 3 and the sewage discharge mechanism 2. This cleans the hole after drilling is completed, avoiding a large amount of debris remaining in the hole and affecting the subsequent installation of the pipe roof steel pipe.

[0048] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0049] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0050] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tunnel cross-section pipe roof drilling construction device, comprising a base, characterized in that, It also includes a movable base movably mounted on top of the base, the side wall of which is provided with a drilling mechanism for drilling holes in the tunnel cross-section. The drilling mechanism includes: A first servo motor is fixedly mounted on one side of the movable base. The output shaft of the first servo motor is fixedly connected to a drill rod extending to the other side of the movable base via a coupling. A drill bit is fixedly mounted at the end of the drill rod away from the first servo motor. The sidewall diameter of the drill bit is larger than the sidewall diameter of the drill rod. The sidewall of the drill rod is equipped with a cleaning mechanism for removing debris. The cleaning mechanism includes: A sleeve is fitted onto the side wall of the drill rod, and the outer diameter of the sleeve is the same as the maximum side wall diameter of the drill bit. The inner diameter of the sleeve is larger than the side wall diameter of the drill rod, so that there is space between the sleeve and the drill rod for cleaning debris. The side wall of the movable seat is provided with an eccentric assembly for driving the sleeve to rotate eccentrically, and the side wall of the sleeve is provided with an auxiliary mechanism. The auger blades are fixed to the side wall of the drill rod to discharge the drilling debris along the inner wall of the sleeve. A sewage discharge mechanism is provided at the bottom of the outer wall of the sleeve. There is space between the auger blades and the inner wall of the sleeve for the sleeve to rotate eccentrically.

2. The tunnel cross-section pipe roof drilling construction device according to claim 1, characterized in that, The cleaning mechanism also includes: A sealing plate is fixedly installed at the end of the sleeve away from the drill bit, and the side wall of the sealing plate has a first through hole for mounting the drill rod. The eccentric component includes: The spline shaft is fixedly located on the side of the sealing plate away from the drill bit. The movable seat is equipped with a first bearing, and the movable seat is equipped with a spline cylinder that meshes with the spline shaft through the first bearing. The second bearing is located on the outer wall of the spline shaft, and the outer wall of the spline shaft is provided with a movable plate extending to the outside of the movable seat via the second bearing.

3. The tunnel cross-section pipe roof drilling construction device according to claim 2, characterized in that, The eccentric component further includes: The second servo motor is fixedly mounted on the side wall of the moving plate. The output shaft of the second servo motor is fixedly mounted on a rotating shaft via a coupling. The side wall of the rotating shaft is fixedly fitted with a first eccentric gear. The second eccentric gear is fixedly sleeved on the outer wall of the sleeve and meshes with the first eccentric gear so that when the first eccentric gear rotates along the central axis of the rotating shaft, it drives the second eccentric gear to rotate along the central axis of the spline shaft. The side wall of the moving plate is fixedly provided with a protective cover sleeved on the outside of the first eccentric gear and the second eccentric gear. An electric push rod is fixedly mounted on the top of the movable base, and the telescopic shaft of the electric push rod is fixedly connected to the movable plate.

4. The tunnel cross-section pipe roof drilling construction device according to claim 2, characterized in that, The auxiliary mechanism includes a connecting component, which includes: A rotary joint is located inside the movable seat. A rotating flange and a fixed flange are respectively provided at both ends of the rotary joint. A first sealing plate is fixedly provided at the end of the rotating flange near the sealing plate. An isolation cylinder is fixedly provided on the side of the first sealing plate near the rotating flange. The inner wall of the isolation cylinder is fitted onto the side wall of the drill rod and leaves space for the drill rod to rotate. The second sealing plate is fixedly installed on the side of the fixed flange away from the rotating flange and is fixedly connected to the inner wall of the movable seat. The isolation cylinder passes through the second sealing plate and extends to the side of the second sealing plate away from the first sealing plate. The inner wall of the second sealing plate and the outer wall of the isolation cylinder are designed to be dynamically sealed. The inner wall of the rotary joint is separated by the first sealing plate, the second sealing plate and the isolation cylinder to form a sealed flow guiding cavity.

5. A tunnel cross-section pipe roof drilling construction device according to claim 4, characterized in that, The auxiliary mechanism also includes: The first conduit is fixedly disposed on the outside of the second sealing plate. The second conduit is fixedly disposed on the outside of the first sealing plate. The ends of the first conduit and the second conduit that are close to each other extend into the flow guide cavity. The second conduit extends along the inside of the first sealing plate, the spline shaft and the sealing plate into the sleeve and is located at the end of the sleeve close to the drill bit. The flow guide box is fixedly installed inside the sleeve and is connected to the second conduit. The side wall of the flow guide box is fixedly provided with nozzles that are spaced apart and extend outside the sleeve. The nozzles are located on the side of the sleeve with the minimum eccentricity.

6. The tunnel cross-section pipe roof drilling construction device according to claim 2, characterized in that, The central axes of the drill pipe, drill bit, and sleeve coincide; The spline shaft has a second through hole at its end that communicates with the first through hole. The inner diameter of both the first and second through holes is larger than the side wall diameter of the drill rod, so as to restrict the rotation of the drill rod and the sleeve and thus prevent movement. The drilling mechanism also includes: The third bearing is located inside the movable seat to rotatably connect the drill rod to the movable seat. The movable seat has a third through hole for installing the third bearing, the rotary joint and the first bearing.

7. The tunnel cross-section pipe roof drilling construction device according to claim 1, characterized in that, The sewage discharge mechanism includes: The frame is fitted onto the bottom of the outer wall of the sleeve, and the top of the frame is fitted against the outer wall of the sleeve. The outer wall of the sleeve has a through groove that communicates with the frame, and the top of the base has a movable through groove fitted onto the outside of the frame. The rotating rod is rotatably mounted on the side wall of the base and passes through the frame. A stop bar is fixedly provided on the side wall of the rotating rod.

8. A tunnel cross-section pipe roof drilling construction device according to claim 7, characterized in that, The sewage discharge mechanism also includes: The ring body is sleeved on the outside of the rotating rod and the stop bar, and is arranged symmetrically with the center point of the frame. Rotating through holes are opened on both sides of the frame body. The inner diameter of the rotating through hole is larger than the outer diameter of the ring body. Guide rods are fixedly installed on the top and bottom of the outer wall of the ring body. Guide grooves for sleeved guide rods are opened on the top and bottom of the inner wall of the rotating through hole. The connecting cylinder is fixedly installed on the side of the ring that is close to each other, and the two ends of the connecting cylinder are respectively attached to the inner walls of the two sides of the frame. The retaining ring is fixed on both sides of the frame and sleeved on the outside of the rotating rod and the retaining strip.

9. A tunnel cross-section pipe roof drilling construction device according to claim 7, characterized in that, The side wall of the base is provided with a moving mechanism for driving the movable seat to move, the moving mechanism including: The threaded rod is rotatably mounted on the side wall of the base and symmetrically arranged around the center point of the base. The rotating rod and the two threaded rods are connected in a transmission manner. Slide grooves are opened on both sides of the base. Slide blocks are placed inside the slide grooves. A movable frame is fixedly mounted on the side wall of the slider. The movable frame is U-shaped. The top of the movable frame is fixedly connected to the bottom of the movable seat. The side wall of the movable frame is fixedly connected to the frame body. The slider is threadedly connected to the threaded rod. The third servo motor is fixedly mounted on the side wall of the base, and the output shaft of the third servo motor is fixedly connected to one of the threaded rods through a coupling.

10. A method for using a tunnel cross-section pipe roof drilling construction device, characterized in that, The method of using a tunnel cross-section pipe roof drilling construction device according to any one of claims 1-9 includes the following steps: S1: The drill bit and drill rod are rotated by the drilling mechanism, and drilling is performed by the drill bit as the moving seat moves. S2: During the drilling process, the debris generated is discharged outside the hole through the cleaning mechanism.

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