LU501647B1 - Drilling equipment for tunnel boring machine and tunnel boring machine - Google Patents
Drilling equipment for tunnel boring machine and tunnel boring machine Download PDFInfo
- Publication number
- LU501647B1 LU501647B1 LU501647A LU501647A LU501647B1 LU 501647 B1 LU501647 B1 LU 501647B1 LU 501647 A LU501647 A LU 501647A LU 501647 A LU501647 A LU 501647A LU 501647 B1 LU501647 B1 LU 501647B1
- Authority
- LU
- Luxembourg
- Prior art keywords
- drilling
- boring machine
- tunnel boring
- communicated
- water supply
- Prior art date
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 73
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 59
- 230000005641 tunneling Effects 0.000 claims abstract description 22
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 230000000712 assembly Effects 0.000 claims abstract description 8
- 238000000429 assembly Methods 0.000 claims abstract description 8
- 239000007921 spray Substances 0.000 claims description 6
- 239000011435 rock Substances 0.000 abstract description 21
- 238000009412 basement excavation Methods 0.000 description 14
- 238000005520 cutting process Methods 0.000 description 8
- 238000005457 optimization Methods 0.000 description 7
- 101100194817 Caenorhabditis elegans rig-6 gene Proteins 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
- E21D9/087—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a drilling device for a tunnel boring machine and a tunnel boring machine, which comprises a cylinder, wherein one end of the cylinder is provided with a tunneling mechanism, the center of the cylinder is provided with a water supply pipe which is communicated with the tunneling mechanism; the tunneling mechanism comprises a power component which is fixedly connected with the cylinder; the power component is in transmission connection with the cutter head; the end face of the cutter head is provided with a plurality of cutters and a plurality of drilling assemblies, and the water supply pipe is communicated with the drilling assemblies. The invention is simple in structure and convenient to use, can quickly crush rocks, give full play to the performance of roadheader, improve tunneling efficiency, shorten engineering progress and cycle, reduce tool wear and prolong tool service life.
Description
DESCRIPTION LU501647
TECHNICAL FIELD The invention relates to the technical field of tunneling equipment, and particularly to a drilling equipment for tunnel boring machine and tunnel boring machine.
BACKGROUND With the increasing requirements of tunneling speed and efficiency for geotechnical engineering such as tunnels and underground cavity, mechanized and automated equipment and machinery that can realize rapid construction gradually replace the traditional construction mode that requires a large number of manual group operations. Tunnel boring machine has also become a shield machine, which is a new and advanced tunnel construction machine that can use rotary cutter to excavate and break the surrounding rock and excavation in the tunnel at the same time to form the whole tunnel section. It has the characteristics of high-speed rock cutting, slag forming, integrated support, high construction speed, safety and environmental protection during construction, etc, and its application is more and more extensive.
The existing roadheader relies on the cutter head and cutter at the head to break the rock. Cutters with different distributions and sizes are arranged in front of the cutter head, and the cutter head is used to drive the cutter head to rotate to cut the rock mass to be excavated. However, when the existing roadheader faces the hard rock with good integrity and high strength, it can't cut the rock mass quickly only by the rotary cutting and punching action of the cutter head, which leads to the low efficiency of engineering excavation and delays the progress and cycle of the project. Therefore, a tunnel boring machine with fast driving speed and high efficiency is urgently needed to solve the above problems.
SUMMARY The purpose of the present invention is to provide a drilling device for a tunnel boring machine and a tunnel boring machine to solve the problems existing in the prior art.
To achieve the above purpose, the invention provides the following scheme: a drilling device for a tunnel boring machine and a tunnel boring machine, comprising a cylinder, wherein one end of the cylinder is provided with a tunneling mechanism, and the center of the cylinder k$/501647 provided with a water supply pipe which is communicated with the tunneling mechanism; The tunneling mechanism comprises a power component which is fixedly connected with the cylinder; the power assembly is in transmission connection with a cutter head; the end face of the cutter head is provided with cutters and drilling assemblies, and the water supply pipe is communicated with the drilling assemblies.
Preferred, the drilling assembly comprises a telescopic rod arranged in the cutter head, the movable end of the telescopic rod is fixedly connected with a drilling machine, and the water supply pipe is communicated with the drill bit of the drilling machine.
Preferred, the drill bit comprises a drill rod fixedly connected with the drilling machine, and a drilling head is fixedly connected to the end of the drill rod; a water jacket is sleeved on the drill rod, and the water jacket is communicated with the water supply pipe.
Preferred, the water jacket comprises a sleeve sleeved on the drill pipe, and the cavity of the sleeve is communicated with the water supply pipe; the outer wall of the sleeve is provided with a plurality of water spray holes, and one end of the sleeve close to the drilling machine is fixedly connected with an end plate.
Preferred, the outer diameter of the end plate is not less than the diameter of the drilling head.
Preferred, the diameter of the drilling head is not less than that of the sleeve.
Preferred, the water supply pipe comprises a main pipe and branch pipes, and a rotary joint is arranged in front of the main pipe and the branch pipes; the branch pipe is communicated with the cavity.
Preferred, the end of the branch pipe is communicated with the cavity through a spring pipe.
Effect of Invention The invention provides a drilling device for a tunnel boring machine and a tunnel boring machine, wherein a cutter head is driven to rotate by a power component, and the cutter on the cutter head digs the rock in the heading direction; the drilling assembly drills holes in the rock to be drilled before tunneling to reduce the tunneling resistance; the drilling assembly is communicated with the water supply pipe. When drilling, high-pressure water flow is injected into the hole, and the hole is hydraulically fractured to form cracks, which further reduces the driving resistance and improves the driving speed. The invention is simple in structure ahd/501647 convenient to use, can quickly crush rocks, give full play to the performance of roadheader, improve tunneling efficiency, shorten engineering progress and cycle, reduce tool wear and prolong tool service life.
BRIEF DESCRIPTION OF THE FIGURES In order to more clearly explain the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention, and for ordinary technicians in the field, other drawings can be obtained according to these drawings without paying creative efforts.
FIG. 1 is a schematic structural diagram of the present invention; FIG. 2 is a front view of the cutter head of the present invention; FIG. 3 is a schematic structural diagram of the cutter head of the present invention; FIG. 4 is a partial enlarged view of A in FIG. 3; FIG. 5 is a schematic structural diagram of the drill bit of the present invention.
Among them, 1: cylinder; 2: water supply pipe; 3: cutter head; 4: cutter; 5: telescopic rod; 6: drilling rig; 7: drill bit; 8: drill pipe; 9: drilling head; 10: casing; 11: water spray holes; 12: cavity; 13: end plate; 14: main pipe; 15: branch pipe; 16: turn the joint; 17: spring tube; 18: supporting plate; 19: transmission cylinder; 20: power motor; 21: power gear; 22: connecting device; 23: conveyor belt; 24: annular groove; 25: roller; 26: place the hole.
DESCRIPTION OF THE INVENTION Next, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of the present invention.
In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention will be described in further detail below with reference to the drawings and detailed description.
Referring to FIG. 1-FIG. 5, the present invention provides a drilling device for a tunneV501647 boring machine and a tunnel boring machine, including a cylinder 1, one end of which is provided with a tunneling mechanism, and the center of the cylinder 1 is provided with a water supply pipe 2 which is communicated with the tunneling mechanism; The tunneling mechanism comprises a power component which is fixedly connected with the cylinder 1; the power assembly is in transmission connection with the cutter head 3; the end face of the cutter 3 is provided with a plurality of cutters 4 and a plurality of drilling assemblies, and the water supply pipe 2 is communicated with the drilling assemblies.
The invention discloses a drilling device for a tunnel boring machine and a tunnel boring machine. A cutter head 3 is driven to rotate by a power assembly, and a cutter 4 on the cutter head 3 digs the rock in the heading direction; the drilling assembly drills holes in the rock to be drilled before tunneling to reduce the tunneling resistance; the drilling assembly is connected with the water supply pipe 2. When drilling, high-pressure water flow is injected into the hole, and cracks are formed through hydraulic fracturing, which further reduces the driving resistance and improves the driving speed.
Furthermore, the power assembly includes a support plate 18 fixedly connected with the inner wall of the cylinder 1, one end of the support plate 18 facing the cutter head 3 is rotatably connected with a transmission cylinder 19, and the other end of the transmission cylinder 19 is fixedly connected with the end face of the cutter head 3; a power motor 20 is fixedly connected to the support plate 18, and a power gear 21 is fixedly connected to the output end of the power motor 20, and the power gear 21 is meshed with the outer wall of the transmission cylinder 19. The power motor 20 drives the cutter head 3 to rotate through the power gear 21 and the transmission cylinder 19 which are meshed and connected, and the cutter 4 on the cutter head 3 completes the excavation.
Furthermore, the end of the cylinder 1 far away from the cutter head 3 is provided with a connecting device 22, which is used to connect another cylinder 1 and extend the excavation depth.
Furthermore, a conveyor belt 23 is arranged in the cylinder 1, which is used to collect the rocks generated by excavation and send them out of the excavation channel, so that there is no excess rock residue in the channel, there is no need to manually clean the rocks, and it k$/501647 convenient for the later supporting work.
Furthermore, the cutter head 3 is provided with a plurality of placing holes 26, and the drilling well assembly is arranged in the placing holes 26, and the drilling well assembly retracts into the placing holes 26 during excavation to prevent the drilling assembly from being damaged and extending out during drilling.
In a further optimization scheme, the drilling assembly comprises a telescopic rod 5 arranged in the cutter head 3, the movable end of the telescopic rod 5 is fixedly connected with a drilling machine 6, and the water supply pipe 2 is communicated with a drill bit 7 of the drilling machine 6. The telescopic rod 5 drives the drill bit 7 of the drilling rig 6 to extend and retract into the cutter head 3, and the end of the drilling rig 6 extends out of the cutter head 3 to complete drilling and hydraulic fracturing. During excavation, the drill bit 7 is retracted into the cutter head 3, which causes the drill bit 7 to be damaged during the over-stroke of rotating the cutter head 3.
In a further optimization scheme, the drill bit 7 includes a drill rod 8 fixedly connected with the drill 6, and the end of the drill rod 8 is fixedly connected with a drilling head 9; The drill pipe 8 is sleeved with a water jacket which is communicated with the water supply pipe 2. When drilling, the drilling rig 6 drives the drilling head 9 to rotate through the drill pipe 8 to drill, and the water sleeve is arranged outside the drill pipe 8, so as to prevent the water supply pipe 2 from being disconnected. The water supply pipe 2 injects the high-pressure water into the water jacket, and then ejects it from the outer wall of the water jacket to hydraulically pressurize the drilled hole, resulting in cracks around the hole and loosening of rocks, which is convenient for excavation.
In a further optimization scheme, the water jacket comprises a sleeve 10 sleeved on the drill pipe 8, and the cavity 12 of the sleeve 10 is communicated with the water supply pipe 2; the outer wall of the casing 10 is provided with a plurality of water spray holes 11, and an end plate 13 is fixedly connected to one end of the casing 10 close to the drilling rig 6. The casing 10 has a double-layer structure, the inner layer is rotatably connected with the drill pipe 8, a cavity 12 is formed between the inner layer and the outer layer, and the water supply pipe 2 is communicated with the cavity 12 through a water inlet; the outer wall of the outer layer is provided with a plurality of water spray holes 11, and the high-pressure water in the cavity 12 is sprayed from th&/501647 water spray holes 11 to pressurize the drilled holes, so as to split around the hole wall to form cracks, and drill cuttings and water flow diffuse the cracks around, thus reducing the driving resistance.
Furthermore, the end of the drilling head 9 facing the drill rod 8 is provided with an annular groove 24, and the annular groove 24 is adapted to the casing 10. A roller 25 is arranged in the annular groove 24, and the end of the sleeve 10 extends into the annular groove 24 to abut against the roller, so as to prevent the sleeve 10 from deflecting and affecting the rotation of the drill rod 8. The roller 25 reduces the friction between the end of the sleeve 10 and the annular groove 24, reduces the energy loss, and simultaneously reduces the wear speed of the sleeve 10.
In a further optimization scheme, the outer diameter of the end plate 13 is not less than the diameter of the drilling head 9, the diameter of the hole drilled by the drill bit 7 is the same as that of the drilling head 9, and the diameter of the end plate 13 is not less than that of the drilling head 9 completely seal the drilled hole and further to prevent the water pressure from being insufficient due to the water flowing out of the hole during hydraulic fracturing.
In a further optimization scheme, the diameter of the drilling head 9 is not less than that of the casing 10. The diameter of the drilling head 9 is not less than that of the casing 10, so that drill cuttings can be fused between the casing 10 and the turned hole wall, and the influence of drill cuttings on drilling can be reduced. At the same time, the drill cuttings surround the casing
10. When hydraulic fracturing occurs, the hole wall around the casing 10 splits, and the drill cuttings enter the cracks, further expanding the cracks, expanding the crack range and facilitating excavation.
In a further optimization scheme, the water supply pipe 2 comprises a main pipe 14 and a plurality of branch pipes 15, and a rotary joint 16 is arranged in front of the main pipe 14 and the branch pipes 15; the branch pipe 15 communicates with the cavity 12. Since the branch pipe 15 is connected with the cutter head 3 and needs to rotate together with the cutter head 3, the main pipe 14 and the branch pipe 15 are connected by the rotary joint 16, the main pipe 14 is fixed, and the rotation of the disk to which the branch pipe 15 is connected will not affect the flow of internal water.
Further, the rotary joint 16 is a rotary joint in the prior art, which can keep communicatid#/501647 under the condition that two pipelines rotate with each other.
In a further optimization scheme, the end of the branch pipe 15 is communicated with the cavity 12 through a spring pipe 17. When the telescopic rod 5 drives the drill 6 in and out, the spring tube 17 is stretched or compressed to prevent the connection between the branch tube 15 and the cavity 12 from being disconnected.
Use method is as follows: The main pipe 14 is connected with a branch pipe 15 through a rotary joint 16, and the other end of the branch pipe 15 is communicated with the cavity 12 of the sleeve 10. Then, move the device to the position to be excavated, so that the cutter head 3 is facing the tunneling direction.
The power motor 20 is started, and the cutter head 3 is driven to rotate through the meshing connection of the power gear 21 and the transmission cylinder 19. The cutter 4 on the cutter head 3 crushes the rocks in the driving direction and collects them in the cylinder 1, and then conveys them to the outside of the cylinder 1 by the conveyor belt 23.
When there is a whole stone or other hard soil in front of the excavation, starting the drilling rig 6, and then pushing the drilling rig 6 out in the excavation direction with the telescopic rod 5; drill bit 7 drills into the rock in front until the end plate 13 abuts against the entrance of the drilled hole. High-pressure water is pressed into the cavity 12 of the casing 10 through the water supply pipe 2, and the high-pressure water is jetted out from the water nozzle to the periphery, thus increasing the pressure in the borehole, fracturing the periphery of the borehole, causing cuttings and water flow to flow into the fissure, further enlarging the fissure and crushing the rock structure in the driving direction; stopping the water injection, then retracting the telescopic rod 5 to retract the drill bit 7 into the cutter head 3, and starting the power motor 20 again to drive the cutter head forward.
When the excavation reaches a certain depth, a section of cylinder 1 is connected again through the rear connecting device 22, and the conveyor belt 23 and the main pipe 14 are known in response, so that the excavation can be continued.
The invention is simple in structure and convenient to use, can realize rapid rock crushing, give full play to the performance of roadheader, improve tunneling efficiency, shorten engineering progress and cycle, and at the same time, rock crushing can reduce the wear of cuttet)501647 4 and prolong the service life of cutter 4.
In the description of the invention, it should be understood that the azimuth or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and so on is based on the azimuth or positional relationship shown in the attached drawings for the convenience of describing the invention, rather than indicating or implying that the device or element must have a specific orientation, be constructed and operated in a specific orientation, it cannot be understood as a limitation of the present invention.
The above examples only describe the preferred mode of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, all kinds of modifications and improvements made by ordinary technicians in the field to the technical scheme of the present invention should fall within the protection scope determined by the claims of the present invention.
Claims (8)
1. A drilling device for a tunnel boring machine and a tunnel boring machine, characterized by comprising a cylinder (1), wherein one end of the cylinder (1) is provided with a tunneling mechanism, the center of the cylinder (1) is provided with a water supply pipe (2), and the water supply pipe (2) is communicated with the tunneling mechanism; the tunneling mechanism comprises a power component, and the power component is fixedly connected with the cylinder (1); the power component is in transmission connection with a cutter head (3); the end face of the cutter head (3) is provided with cutters (4) and drilling assemblies, and the water supply pipe (2) is communicated with the drilling assemblies.
2. The drilling equipment for tunnel boring machine and tunnel boring machine according to claim 1, characterized in that the drilling assembly comprises a telescopic rod (5) arranged in the cutter head (3), the movable end of the telescopic rod (5) is fixedly connected with a drilling machine (6), and the water supply pipe (2) is communicated with the drill bit (7) of the drilling machine (6).
3. The drilling equipment for tunnel boring machine and tunnel boring machine according to claim 2, characterized in that the drill bit (7) comprises a drill rod (8) fixedly connected with the drilling machine (6), and a drilling head (9) is fixedly connected to the end of the drill rod (8); a water jacket is sleeved on the drill rod (8), and the water jacket is communicated with the water supply pipe (2).
4. The drilling equipment for tunnel boring machine and tunnel boring machine according to claim 3, characterized in that the water jacket comprises a sleeve (10) sleeved on the drill pipe (8), and the cavity (12) of the sleeve (10) is communicated with the water supply pipe (2); the outer wall of the sleeve (10) is provided with a plurality of water spray holes (11), and one end of the sleeve (10) close to the drilling machine (6) is fixedly connected with an end plate (13).
5. The drilling equipment for tunnel boring machine and tunnel boring machine according to claim 4, characterized in that the outer diameter of the end plate (13) is not less than the diameter of the drilling head (9).
6. The drilling equipment for tunnel boring machine and tunnel boring machine according to claim 5, characterized in that the diameter of the drilling head (9) is not less than the diameter of the sleeve (10).
7. The drilling equipment for tunnel boring machine and tunnel boring machine accordidgJ501647 to claim 4, characterized in that the water supply pipe (2) comprises a main pipe (14) and branch pipes (15), and a rotary joint (16) is arranged in front of the main pipe (14) and the branch pipes (15); the branch pipes (15) are communicated with the cavity (12).
8. The drilling equipment for tunnel boring machine and tunnel boring machine according to claim 7, characterized in that the end of the branch pipes (15) is communicated with the cavity (12) through a spring pipe (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| LU501647A LU501647B1 (en) | 2022-03-11 | 2022-03-11 | Drilling equipment for tunnel boring machine and tunnel boring machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| LU501647A LU501647B1 (en) | 2022-03-11 | 2022-03-11 | Drilling equipment for tunnel boring machine and tunnel boring machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| LU501647B1 true LU501647B1 (en) | 2022-09-12 |
Family
ID=83231028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| LU501647A LU501647B1 (en) | 2022-03-11 | 2022-03-11 | Drilling equipment for tunnel boring machine and tunnel boring machine |
Country Status (1)
| Country | Link |
|---|---|
| LU (1) | LU501647B1 (en) |
-
2022
- 2022-03-11 LU LU501647A patent/LU501647B1/en active IP Right Grant
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG | Patent granted |
Effective date: 20220912 |