Jet beam assisted mechanical continuous rock breaking tool, method, TBM and shield machine
By designing a jet beam-assisted mechanical continuous rock breaking tool, the problems of insufficient reliability of the water jet nozzle protection structure and excessive target distance were solved, efficient rock breaking was achieved under complex geological conditions, and the adaptability and cutting efficiency of the tool were improved.
Patent Information
- Application Number
- CN202310499507.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-04-27
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2043-04-27
AI Technical Summary
The existing water jet nozzle protection structure is not reliable enough, the target distance is too large, resulting in poor cutting effect, and the tool replacement time is long, which makes it difficult to adapt to the rock breaking needs of soft and hard rock composite formations and reinforced concrete structures.
A jet-beam-assisted mechanical continuous rock-breaking tool is designed, which includes a tool holder, a hob cutter module, a jet-beam combined tool module and a hob cutter inclination adjustment mechanism. By adjusting the relative position of the hob cutter inclination angle and the jet-beam combined tool module, the target distance can be adjusted. The jet nozzle is protected by the cutting tool module, and the test research of various tool combination modes is realized.
It improves the water jet cutting efficiency, reduces the risk of nozzle damage, enhances the adaptability and rock breaking ability of the tool, and can achieve continuous auxiliary and efficient rock breaking under various geological conditions.
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Figure CN116517572B_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of full-face tunnel boring machines, and relates to a jet-beam-assisted mechanical continuous rock-breaking tool, method, TBM and shield machine. The present invention is particularly suitable for the jet-beam-assisted mechanical cutting tool and method used in TBM / shield machines for tunneling in extremely hard rock, soft-hard rock composite strata, and reinforced concrete structures. Background Art
[0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art.
[0003] As a highly integrated tunnel construction machine, full-face tunnel boring machines (TBMs) offer advantages such as high excavation speed, minimal environmental disturbance, and safety and reliability, making them widely used in tunnel construction. However, when encountering complex conditions such as hard rock, isolated boulders, mixed soft-hard rock formations, and reinforced concrete structures, the cutter's rock-breaking capability is severely insufficient, severely restricting the TBM's excavation efficiency. To improve the rock-breaking capabilities of current TBMs, the concept of water jet-assisted rock-breaking technology was proposed and quickly became a hot topic of research in underground engineering both domestically and internationally.
[0004] While the use of water jets mounted on tunnel boring machines for assisted rock breaking has achieved some theoretical and technical progress, further in-depth research is still required through extensive laboratory combined rock breaking testing. Traditional testing methods involve simple integration of individual water jet nozzles with mechanical cutters to investigate the effectiveness and mechanism of water jet-assisted rock breaking. During implementation, the following challenges were encountered: 1. The water jet nozzle's protective structure is insufficiently reliable, failing to meet the requirements for continuous rock breaking assistance. Current water jet nozzles are primarily shielded by a shell, which is weak and easily damaged when encountering rock ridges or blocks, causing the water jet to fail and terminate continuous rock breaking assistance. 2. The water jet nozzle's protective structure is located far from the tunnel face, resulting in poor rock breaking performance. To minimize contact between the shell and the rock ridge, the distance between the shell and the tunnel face often needs to be increased, significantly increasing the water jet's rock breaking target distance and significantly reducing the water jet's cutting effectiveness. 3. The water jet nozzle's integration with mechanical cutters (scrapers, shell cutters, roller cutters) is limited. The tool replacement time accounts for a high proportion, the tool cutting angle is difficult to adjust, and there is a lack of convenient and fast multi-degree-of-freedom adjustment, coordination and mode switching, which makes it difficult to efficiently meet the targeted research on soft rock, hard rock and soft and hard rock composite strata, and reinforced concrete structures. Summary of the Invention
[0005] In order to solve the above problems, the present invention proposes a jet beam assisted mechanical continuous rock breaking tool, method, TBM and shield machine. The present invention can achieve the adaptability of the tool to the excavation environment. The blade of the cutting tool module can effectively protect the jet nozzle. Under the protection of the cutting tool, the jet beam can approach the rock to reduce the target distance, thereby achieving continuous assisted and efficient rock breaking. It can also simulate a variety of test scenarios and realize the testing and research of various tool combination modes.
[0006] According to some embodiments, the present invention adopts the following technical solutions:
[0007] A jet beam assisted mechanical continuous rock breaking tool comprises a tool holder, a hob cutter module, a jet beam combined tool module and a hob cutter inclination adjustment mechanism, wherein:
[0008] The tool holder includes a fixed support and a sliding member, and the fixed support is provided with a hob tool module;
[0009] The hob cutter inclination adjustment mechanism is used to adjust the angle between the hob cutter tool module and the cutter seat;
[0010] The jet beam combined tool module includes a cutting tool module and a jet beam tool module, and is arranged on the sliding member of the tool holder;
[0011] The sliding member can move along the fixed support to change the relative position;
[0012] The relative positions of the sliding component and the fixed support can be changed by the vertical slide rail on the tool holder, so that the target distance of the jet beam combined with the tool can be adjusted.
[0013] By adjusting the inclination of the hob cutter inclination adjustment mechanism, the hob cuts in either tangential or oblique directions, which provides a possibility for studying the cutting efficiency of the edge cutter.
[0014] As an optional embodiment, a vertical slide rail along the excavation direction is provided on at least one side of the fixed support, and the sliding member is provided with a fastener for fixing the relative position of the two at the corresponding vertical slide rail.
[0015] As an optional embodiment, the hob tool module includes a hob, a fixed support and a locking plate, and the hob is fixed to the tool holder through the locking plate.
[0016] As an optional embodiment, the hob inclination adjustment mechanism includes a limit member, a first joint, a second joint and a locking plate. A limit hole is provided on the fixed support. The limit member is provided in the limit hole and can slide and lock along the extension direction of the limit hole; the first joint is connected to the limit member, the second joint is rotatably connected to the first joint, and the other end of the second joint is provided on one side of the hob, and the other side of the hob is fixed by the locking plate.
[0017] Furthermore, when the first joint and the second joint are in the first state, the roller cutter is perpendicular to the tunnel face and cuts the rock perpendicularly; when the first joint and the second joint are in the second state, the roller cutter forms a certain angle with the tunnel face and cuts the rock obliquely.
[0018] As an optional embodiment, the jet beam tool module includes a jet nozzle, a jet bracket and a high-pressure hose, one end of the jet bracket is connected to the jet nozzle, and the other end is connected to the tool holder sliding component, and the high-pressure hose passes through the jet bracket to provide injection power for the jet beam.
[0019] Furthermore, the jet support is slidably connected to the tool holder via a sliding portion provided on the surface of the sliding component of the tool holder, and the moving track of the sliding portion is perpendicular to the cutting track of the hob.
[0020] As a further feature, the jet nozzle is connected to an energy source, which is one of a continuous water jet nozzle, a pulsed water jet nozzle, an abrasive water jet nozzle, a critical carbon dioxide, a liquid nitrogen water jet nozzle or a laser emitter.
[0021] As an optional embodiment, the cutting tool module is arranged on the sliding part of the sliding member, including a blade, a tooth and a cutting tool body, the cutting tool body and the sliding part are connected, the blade is the contact part between the cutting tool module and the rock, a plurality of reserved slots are provided, and a groove is provided, which corresponds to the internal through hole of the cutting tool body, and the position of the groove matches the position of the jet nozzle;
[0022] The reserved slot is provided with knife teeth, which are connected to the knife blade in an inserting manner.
[0023] As a further feature, the blade teeth are made of alloy material.
[0024] The cutting tool module protrudes from the jet nozzle, ensuring nozzle protection. The jet beam first impacts the rock, while the cutting tool portion then squeezes, scrapes, and removes rock ridges and debris, collaborating with the roller cutter to complete the combined cutting. Because the jet beam is protected by the cutting tool, and the cutting tool removes rock not removed by the roller cutter, this reciprocating motion enables continuous jet beam-assisted excavation. Furthermore, the spacing of the teeth and blades optimizes material hardness and improves tool reliability.
[0025] As an optional embodiment, the hob tool module, the cutting tool module and the jet tool module are all detachably connected to the tool holder.
[0026] A method for testing the jet beam assisted mechanical cutting tool comprises:
[0027] Turn off the jet cutter module and only use the hob cutter module to conduct mechanical rock breaking tests;
[0028] Alternatively, the cutter of the cutter module can be removed, and the jet beam combined with the cutter module can be used to punch and break the rock, thereby testing the jet rock breaking method.
[0029] Alternatively, a combined rock breaking test may be conducted by utilizing both the disc cutter module and the jet beam combined cutter module.
[0030] As an optional implementation, during the combined rock breaking, the following rock breaking tests are performed respectively:
[0031] The jet beam and the mechanical tool have the same trajectory: the jet beam and the tool adjust the relative position through the sliding part. When the jet beam is in line with the hob cutting trajectory, the jet beam and the mechanical tool cut on the same trajectory.
[0032] Different trajectories of the jet beam and the mechanical tool: The jet beam and the tool adjust the relative position through the sliding part, and the jet beam and the mechanical tool cut on different trajectories when they are not colinear with the hob cutting trajectory.
[0033] By adjusting the relative position of the sliding component of the tool holder to the fixed support, the height relationship between the jet beam combined tool and the hob can be adjusted and the target distance can be changed; by replacing the cutter teeth, research on various cutting tools and jet combined tools can be carried out; by adjusting the relative position of the jet tool to the sliding component of the tool holder, the position relationship between the jet tool and the mechanical tool in the cutting trajectory direction can be adjusted, rock breaking tests under various working conditions can be carried out, and the optimal combination of rock breaking methods can be found.
[0034] A TBM or shield machine comprises the above-mentioned jet beam assisted mechanical continuous rock breaking tool.
[0035] Compared with the prior art, the present invention has the following beneficial effects:
[0036] This invention solves the problem of continuous tunneling with a water jet-assisted tool. The water jet and cutting tool have strong integration, enabling continuous tunneling assistance. The water jet first impacts and cuts the rock, while the cutting tool then squeezes, scrapes, and removes rock ridges and debris, collaborating with the roller cutter to complete the combined cutting. Because the water jet is protected by the cutting tool, and the cutting tool can break rock that the roller cutter has not yet broken, this reciprocating motion enables continuous tunneling assistance with water jets.
[0037] The water jet of the present invention is built into the cutting tool, providing it with external protection; the blade part of the cutting tool is made of a high-strength alloy material and a groove design is adopted at the exposed part of the nozzle, which reduces the direct collision and wear between the rock and the nozzle of the water jet device during excavation; at the same time, the jet beam tool can be as close to the rock surface as possible under the protection of the cutting tool to reduce the target distance and improve the water jet cutting efficiency.
[0038] The present invention provides a variety of knife types, and the modular setting enables each knife to be easily installed and disassembled, and the combination method is flexible, so as to achieve the adaptability of the knife to the excavation environment. In the test of combined rock breaking, the present invention adjusts the height relationship between the jet tool and the mechanical tool by adjusting the relative position of the sliding component of the knife holder to the fixed support, and realizes the same-track and different-track cutting of the jet beam and the mechanical tool by adjusting the relative position of the sliding component of the knife holder. For soft and hard rocks, the scraper and shell knife can be converted for excavation, and the angle of the roller can be changed to achieve rock breaking tests under various working conditions; the roller can also be removed to study the jet beam assisted scraper and shell knife rock breaking separately; in summary, the optimal combination of rock breaking methods is determined based on a variety of combination modes and parameter optimization.
[0039] The invention has a simple structure, is easy to implement and has good practical value.
[0040] After obtaining the optimal rock-breaking coupling mode through testing, the present invention can determine the optimal combination of tools, reduce the degree of freedom of the jet beam module, install it on a tunnel boring machine, and complete high-pressure water jet-assisted mechanical excavation. BRIEF DESCRIPTION OF THE DRAWINGS
[0041] The accompanying drawings, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.
[0042] Figure 1 This is a front view of the combined tool of the present invention;
[0043] Figure 2 A top view of the combined tool of the present invention;
[0044] Figure 3 It is a left front upward view of the combined tool of the present invention;
[0045] Figure 4 A front view of a hob tool module and its inclination adjustment mechanism of the present invention;
[0046] Figure 5 This is the main view of the cutting tool module form 1;
[0047] Figure 6 It is a cross-sectional view of the cutting tool module form 1;
[0048] Figure 7 This is the main view of the cutting tool module form 2;
[0049] Figure 8 It is a side view of the cutting tool module form 2.
[0050] Among them, 101 is the tool holder, 102 is the hob inclination adjustment mechanism, 103 is the hob tool module, 104 is the jet beam combined tool module, 105 is the fixed support, 106 is the sliding component, 107 is the longitudinal slide rail slot, 108 is the transverse slide rail slot, 109 is the hob, 110 is the locking plate, 112 is the cutting tool module, 113 is the jet beam tool module, 114 is the blade, 115 is the alloy tooth, 116 is the cutting tool body, 117 is the reserved slot, 118 is the locking plate, 119 is the bolt, 120 is the jet nozzle, 121 is the screw, 122 is the jet bracket, 123 is the high-pressure hose, 124 is the first joint, 125 is the second joint; 126 is the limiting hole. DETAILED DESCRIPTION
[0051] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0052] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present invention belongs.
[0053] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.
[0054] like Figures 1 to 4 As shown, a jet beam assisted mechanical cutting tool for soft and hard formations includes a tool holder 101, a roller cutter inclination adjustment mechanism 102, a roller cutter module 103, and a jet beam combined tool module 104.
[0055] The tool holder 101 is divided into a fixed support 105 and a sliding component 106; a hob tool module 103 is installed in the middle of the fixed support 105, and longitudinal slide rail slots 107 are provided on both sides. The fixed support 105 is connected to the hob inclination adjustment mechanism 102. By adjusting the state of the hob inclination adjustment mechanism 102, the inclination angle of the hob 109 can be changed.
[0056] Of course, in some embodiments, the longitudinal rail slots 107 may be a pair, disposed on one side of the fixing support 105 .
[0057] The sliding member 106 is connected to the fixed support 105 through the longitudinal slide rail slot 107, which realizes the flexible change of the relative position of the jet beam combined tool module. By adjusting the relative position with the roller cutter module, the target distance of the jet beam combined tool is adjusted to cope with the working conditions of changes in soft and hard formations.
[0058] The horizontal slide rail slot 108 in front of the sliding component 106 is hollowed out, that is, a long hole, and the jet beam combined tool module 104 can be connected to the sliding component 106 by clamping it with a nut. During the test simulation working conditions, the same-track and different-track cutting tests of the jet beam combined tool and the hob are realized through the sliding of the tool module.
[0059] like Figure 2 As shown, the cutter module 103 includes a cutter 109, a fixed support 105, and a locking plate 110. The cutter 109 is fastened to the fixed support 105 via the locking plate 110. The cutter module 103 allows for flexible installation and removal of the cutter 109 to control test conditions. Rock breaking tests can be performed with or without the cutter module.
[0060] The locking plate 110 can adopt the existing structure, with a threaded hole, and a screw on the knife seat to fix it.
[0061] like Figure 4 As shown, the roller cutter inclination angle adjustment mechanism 102 includes a screw 121, a first joint 124, a second joint 125, a locking plate 110 and a limiting hole 126. The roller cutter inclination angle adjustment mechanism 102 cooperates with the cutter holder to adjust the relative inclination angle of the roller cutter and the cutter disk; when the screw 121 connecting the first joint 124 and the cutter holder 101 is at the upper part of the limiting hole 126, the second joint 125 is pulled open, and the position of the locking plate 110 is adjusted to make the roller cutter 109 perpendicular to the tunnel face. At this time, the roller cuts the rock vertically, that is, tangent; when the screw connecting the first joint 124 and the cutter holder 101 is at the lower part of the limiting hole 126, the second joint 125 is rotated, and the position of the locking plate 110 is adjusted. The roller cutter 109 forms a certain angle with the cutter disk, and the roller cutter is tilted to the tunnel face. At this time, the roller cuts the rock at an angle, that is, bevel cutting.
[0062] The hob inclination adjustment mechanism 102 is provided with a screw 121 connected to the limit hole 126 on the cutter seat 101; then regarding the angle adjustment, the locking plate 110 has two inner and outer threaded holes. According to the angle of the hob 109, select a suitable one to be screwed with the screw so that the relative position of the locking plate 110 is inward or outward.
[0063] The jet beam combined tool module 104 includes a cutting tool module 112 and a jet beam tool module 113; the cutting tool module 112 is not limited to a form including a shell knife, a scraper, etc. The jet beam tool module 113 adopts a threaded design on the outside, and the cutting tool module 112 is screwed into this module to realize a combination of multiple tools, greatly improving the convenience of research.
[0064] like Figure 2 、 3The jet beam tool module 113 shown includes a jet nozzle 120, a jet bracket 122, and a high-pressure hose 123. One end of the jet bracket 122 is connected to the jet nozzle 120, and the other end of the jet bracket 122 is connected to the sliding member 106. The high-pressure hose 123 passes through the bracket to provide injection power for the jet beam.
[0065] The jet nozzle 120 can be a pure water continuous jet nozzle, a pulsed water jet nozzle, an abrasive water jet nozzle, a critical carbon dioxide, a liquid nitrogen water jet nozzle, etc. The laser emitting device can also be replaced, and the other end of the nozzle is connected to different energy sources.
[0066] like Figure 5-Figure 8 As shown, the cutting tool module 112 includes a blade 114, an alloy tooth 115, and a cutting tool body 116. The blade 114 adopts a reserved slot 117 to which the high-strength alloy tooth 115 can be inserted. The reserved slot 117 is a T-shaped slot. A locking piece 118 is provided on the outermost side of the blade 114 and a bolt 119 is used to fix the blade 114 and the alloy tooth 115. It is arranged in a form of spacing from the ordinary blade 114. This form not only realizes the rational use of materials, but also prevents the deformation and extrusion of the jet beam cutter head nozzle caused by the alloy tooth 115 during the excavation process, thereby protecting the jet nozzle; the through hole required for the installation of the jet beam tool module 113 is reserved in the center of the cutting tool module 112, and the cutting tool module 112 has a groove design at the midpoint of the blade 114 corresponding to the position of the jet nozzle, which can protect the jet nozzle from damage to a great extent during the excavation process.
[0067] Figure 5-Figure 8 There are two types of cutting tool modules available. The first is a combination of a blade and shell cutter alloy teeth. The second is a combination of a blade and scraper alloy teeth.
[0068] Regardless of which example, the blade is provided with a reserved slot to provide a position for the alloy teeth. The alloy teeth are made of high-strength alloy material and are connected to the blade's reserved slot in an inserting manner to increase the contact surface with the rock and soil.
[0069] At the same time, grooves are provided at the corresponding positions of the jet nozzles to protect the nozzles and ensure their normal operation. Therefore, under the protection of the cutting tool, the jet beam can re-break the rock mass that has not been broken by the roller cutter without damaging the water jet. This reciprocating coupling rock breaking achieves continuous jet-assisted tunneling.
[0070] Based on the optimal rock-breaking combination obtained from laboratory research, the optimal combination of tools is determined, the freedom of the jet beam combined rock-breaking tool is reduced, and a combined tool for field application is formed. During actual construction, when encountering engineering geological environments such as hard rock and extremely hard rock, the jet beam tool module is enabled to assist the hob tool in joint rock breaking. For other formations, the jet tool can be enabled according to actual needs.
[0071] The above solution, with the modules working together, enables two main types of cutting: mechanical cutting and combined cutting. Combined cutting can be further categorized as cutting with the jet beam and mechanical tool on the same or different trajectories. For excavation of soft and hard rock, a scraper or shell cutter can be used, while the roller cutter can be adjusted in angle using an inclination adjustment mechanism. This allows for research into various tool-rock surface interaction states.
[0072] The jet beam and cutting tool have a strong synergy, and the combined jet beam and tool module can achieve continuous assisted tunneling. The jet beam first impacts and cuts the rock, while the cutting tool then squeezes, scrapes, and removes rock ridges and debris, and cooperates with the roller cutter to complete the combined cutting. Because the jet beam device is protected by the cutting tool, and the cutting tool can break the rock mass that the roller cutter has not broken, this reciprocating motion enables continuous jet beam assisted tunneling.
[0073] As an example, the above-mentioned cutting tool can be tested in multiple rock breaking modes.
[0074] (1) Turn off the jet cutter module and only use the hob cutter module to perform mechanical rock breaking tests;
[0075] (2) Remove the cutter from the cutter module and use the jet beam combined with the cutter module to punch and break the rock, thus testing the jet rock breaking method;
[0076] (3) The combined rock breaking test was conducted by using the hob cutter module and the jet beam combined tool module at the same time.
[0077] As an optional implementation, during the combined rock breaking, the following rock breaking tests are performed respectively:
[0078] The jet beam and the mechanical tool have the same trajectory: the jet beam and the tool adjust the relative position through the sliding part. When the jet beam is in line with the hob cutting trajectory, the jet beam and the mechanical tool cut on the same trajectory.
[0079] Different trajectories of the jet beam and the mechanical tool: The jet beam and the tool adjust the relative position through the sliding part, and the jet beam and the mechanical tool cut on different trajectories when they are not colinear with the hob cutting trajectory.
[0080] By adjusting the relative position of the sliding component of the tool holder to the fixed support, the height relationship between the jet beam combined tool and the hob can be adjusted and the target distance can be changed; by replacing the cutter teeth, research on various types of cutting tools and jet beam combined tools can be carried out; by adjusting the relative position of the sliding component of the jet tool on the tool holder, the position relationship between the jet tool and the mechanical tool in the cutting trajectory direction can be adjusted, rock breaking tests under various working conditions can be carried out, and the optimal combination of rock breaking methods can be found.
[0081] Those skilled in the art will appreciate that other similar connection methods may also be used to implement the present invention, such as welding, bonding, or screwing.
[0082] In addition, some connecting elements, such as screws, nuts, slide rail grooves, etc., can be replaced with other devices with the same functions.
[0083] Although the above describes the specific embodiments of the present invention in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art on the basis of the technical solution of the present invention without any creative work are still within the scope of protection of the present invention.
Claims
1. A jet-assisted mechanical continuous rock breaking tool, characterized in that: It includes a tool holder, a hob tool module, a jet beam combined tool module and a hob inclination adjustment mechanism, wherein: The tool holder includes a fixed support and a sliding member, and the fixed support is also part of the hob tool module; The hob cutter inclination adjustment mechanism is used to adjust the angle between the hob cutter module and the cutter seat, and is arranged on a fixed support; The hob inclination angle adjustment mechanism includes a limiting member, a first joint, a second joint, a locking plate and a limiting hole; The fixed support is provided with a limiting hole, the limiting member is provided in the limiting hole and can slide and relatively position along the extension direction of the limiting hole; the first joint is connected to the limiting member, the second joint is rotatably connected to the first joint, and the other end of the second joint is provided on one side of the hob of the hob tool module, and the other side of the hob is a locking plate, and the position of the locking plate changes with the change of the hob angle; When the first joint and the second joint are in the first state, the disc cutter is perpendicular to the tunnel face and cuts the rock perpendicularly; when the first joint and the second joint are in the second state, the disc cutter and the cutterhead form a certain angle and cut the rock obliquely; The jet beam combined tool module is arranged on the sliding member of the tool holder, and includes a cutting tool module and a jet beam tool module; The jet beam tool module is arranged at the through hole of the cutting tool module, and includes a jet nozzle, a jet bracket and a high-pressure hose. One end of the jet bracket is connected to the jet nozzle, and the other end of the jet bracket is connected to the tool holder sliding member. The high-pressure hose passes through the jet bracket to provide jet power for the jet beam. The jet support is slidably connected to the cutter holder via a sliding portion provided on the surface of the sliding member of the cutter holder, and the moving track of the sliding portion is perpendicular to the cutting track direction of the hob cutter; The sliding member can move along the fixed support to change the relative position; By changing the relative positions of the sliding component and the fixed support, the target distance adjustment of the jet beam combined with the tool module is achieved.
2. The jet beam assisted mechanical continuous rock breaking tool according to claim 1, characterized in that: At least one side of the fixed support is provided with a track arranged along the excavation direction, and the sliding component is provided with a matching sliding part, and a fastener for fixing the relative position of the two is provided at the connection between the two.
3. The jet beam assisted mechanical continuous rock breaking tool according to claim 1, characterized in that: The hob tool module includes a hob, a fixed support and a locking plate. The hob is arranged on the fixed support, and the relative position of the hob and the tool holder is fixed by the locking plate.
4. The jet beam assisted mechanical continuous rock breaking tool according to claim 1, characterized in that: The jet nozzle is connected to an energy source, which is one of a continuous water jet nozzle, a pulsed water jet nozzle, an abrasive water jet nozzle, a critical carbon dioxide, a liquid nitrogen water jet nozzle or a laser emitter.
5. The jet beam assisted mechanical continuous rock breaking tool according to claim 1, characterized in that: The cutting tool module includes a blade, teeth and a cutting tool body. The cutting tool body is connected to a tool holder. The blade is the contact part between the cutting tool module and the rock. A plurality of reserved slots and grooves are provided. The positions of the grooves match the positions of the jet nozzles. The reserved slot is provided with knife teeth, which are connected to the knife edge in an inserting manner.
6. The jet beam assisted mechanical continuous rock breaking tool according to claim 1, characterized in that: The cutting tool module includes a blade, teeth and a cutting tool body. The cutting tool body is arranged on the sliding part of the tool holder. The cutting tool body is provided with blades and teeth distributed at intervals. A through hole is provided in the middle position of the cutting tool body. The position of the through hole corresponds to the position of the jet nozzle.
7. The jet beam assisted mechanical continuous rock breaking tool according to claim 6, characterized in that: The blade teeth are made of alloy material.
8. The jet beam assisted mechanical continuous rock breaking tool according to claim 1, characterized in that: The hob tool module, the cutting tool module and the jet beam tool module are all detachably connected to the tool holder.
9. A method for testing a jet beam assisted mechanical continuous rock breaking tool according to any one of claims 1 to 8, characterized in that: include: Turn off the jet cutter module and only use the hob cutter module to conduct mechanical rock breaking tests; Alternatively, the cutter of the cutter module can be removed, and the jet beam combined with the cutter module can be used to punch and break the rock, thereby testing the jet rock breaking method. Alternatively, a combined rock breaking test may be conducted by utilizing both the disc cutter module and the jet beam combined cutter module.
10. The testing method according to claim 9, wherein: During the combined rock breaking, the following rock breaking tests are performed: The jet beam and the mechanical tool have the same trajectory: the jet beam and the tool adjust the relative position through the sliding part. When the jet beam is in line with the hob cutting trajectory, the jet beam and the mechanical tool cut on the same trajectory. Different trajectories of the jet beam and the mechanical tool: The jet beam and the tool adjust the relative position through the sliding part, and the jet beam and the mechanical tool cut on different trajectories when they are not colinear with the hob cutting trajectory.
11. A method for achieving continuous assisted rock breaking using a jet-assisted mechanical continuous rock breaking tool according to any one of claims 1 to 8, characterized in that: The jet beam and the cutting tool have a strong combination. The jet beam combined with the tool module can realize continuous assisted excavation. The jet beam first impacts and cuts the rock, and the cutting tool part then extrude, scrapes and removes the rock ridge and rock debris, and cooperates with the roller cutter to complete the joint cutting. Because the jet beam device is protected by the cutting tool, and the cutting tool can break the rock that the roller cutter has not broken, the jet beam can achieve continuous assisted excavation in this reciprocating motion.
12. A TBM or shield machine, characterized in that: A jet beam assisted mechanical continuous rock breaking tool comprising the jet beam assisted mechanical continuous rock breaking tool according to any one of claims 1 to 8.
Citation Information
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