Reamer type shaft sinking machine disassembly system

Abstract

The utility model discloses a reaming type vertical shaft tunneling machine dismounting system, including derrick, steady rope, sealing disc, bucket, overhaul disc, the steady rope is connected with the balance ring beam for the auxiliary hoisting dismounting component part, still include the moving device for in the well mouth turnover dismounting component part, the anchor rod and the cable for the temporary fixed cutter head, the support frock for vertical support support shoe, the face slag heap for the auxiliary positioning cutter head, the reaming type vertical shaft tunneling machine is the tunneling machine that reaches the horizontal tunnel of bottom, and the face slag heap is the slag heap in the horizontal tunnel. The utility model reduces the risk such as high altitude falling, object strike, reduces the dust concentration of operation environment, spares the drilling, blasting, slag cleaning and other procedures required by the drilling and blasting method, improves the dismounting safety and dismounting efficiency, reduces the construction cost simultaneously, also enhances the environmental protection.

Description

Technical Field

[0001] This utility model relates to the field of shaft tunneling machine dismantling technology, and in particular to a shaft tunneling machine dismantling system with a hole-expanding type. Background Technology

[0002] In fields such as deep resource development, underground transportation engineering, and water conservancy and hydropower facility construction, the borehole-expanding shaft boring machine (DBM) has become the core equipment for large-diameter shaft construction due to its efficient rock-breaking and shaping capabilities. This type of equipment is primarily used for deep well projects exceeding 200 meters in depth. Due to its high structural integration and large component size and weight, dismantling the machine after construction is a crucial step in the entire project lifecycle. When a boring machine (MDM) is nearing completion, the industry commonly employs a construction method that reserves a certain depth of rock mass for receiving sections to ensure the structural stability of the shaft during dismantling. After the main body of the MBM and its auxiliary equipment are completely dismantled and transported out of the shaft, the reserved rock mass is then blasted using the drill-and-blast method to ultimately complete the shaft's connection. However, this method has several significant problems: First, the dismantling space is limited by the shaft's cross-section, making the dismantling, hoisting, and transport of large components extremely difficult. This not only results in low efficiency but also significantly increases the risk of accidents such as falls from heights and falling objects. Second, the transition between mechanical dismantling and drill-and-blast connection is complex, requiring the re-layout of drill and blast holes, the construction of protective facilities, and the clearing of the work surface after dismantling, leading to delays. Third, drill-and-blast operations can easily disturb the stability of the surrounding rock in the already formed section of the shaft, potentially causing secondary disasters such as collapses and rockfalls. Furthermore, the dust and vibration generated by blasting also adversely affect the working environment and surrounding facilities. In summary, the existing dismantling process of the borehole-expanding shaft tunneling machine can no longer meet the requirements of efficient, safe and environmentally friendly construction in deep shaft engineering. Developing a dismantling system that can simplify procedures, optimize operating space and avoid the defects of the drill-and-blast method has become an urgent technical problem to be solved in this field.

[0003] Therefore, it is necessary to design a dismantling system for a borehole-expanding vertical shaft tunneling machine.

[0004] It should be noted that the above technical information is intended only to enhance the understanding of the overall background technology of this utility model, and should not be regarded as an admission or in any form implying that the above technical information constitutes prior art known to those skilled in the art. Utility Model Content

[0005] To address the shortcomings in the aforementioned background technology, this utility model proposes a shaft boring machine dismantling system, the technical problem to be solved being: how to improve the convenience and safety of dismantling a shaft boring machine.

[0006] The technical solution of this utility model is as follows: A dismantling system for a borehole-expanding vertical shaft tunneling machine includes a derrick, stabilizing rope, sealing plate, bucket, and maintenance plate. The stabilizing rope is connected to a balance ring beam for assisting in lifting the dismantling components. The system also includes a moving device for rotating the dismantling components at the shaft opening, anchor bolts and steel cables for temporarily fixing the cutterhead, support fixtures for vertical support shoes, and a muck pile at the working face for assisting in positioning the cutterhead. The borehole-expanding vertical shaft tunneling machine is a tunneling machine that penetrates to the bottom horizontal tunnel, and the muck pile at the working face is a muck pile within the horizontal tunnel. The core features of this technical solution are: it includes five basic components: derrick, stabilizing rope, sealing plate, bucket, and maintenance plate; it innovatively adds five functional components: a balance ring beam (for assisting lifting), a moving device (for shaft opening rotation), anchor bolts and steel cables (for fixing the cutterhead), support fixtures (for supporting shoes), and a muck pile at the working face (for assisting in positioning the cutterhead); and it clearly defines the tunneling machine as penetrating to the bottom horizontal tunnel, with the muck pile at the working face being a muck pile within the horizontal tunnel.

[0007] Beneficial Effects: Technological Innovation: Achieves "direct shaft breakthrough dismantling," completely eliminating the complex process of "reserving a receiving section of rock mass + drill-and-blast breakthrough," simplifying procedures by over 40% and avoiding losses during the conversion between mechanical and drill-and-blast methods; Space Optimization: Based on the bottom horizontal tunnel and modular component design, the dismantling operation space is increased by 3-5 times compared to traditional narrow shafts, significantly reducing the risk of personnel working at heights and component collisions; Efficiency Improvement: Integrates functions such as hoisting, turnover, fixing, and support, avoiding frequent switching between multiple devices, shortening the total dismantling period by 20-30 days compared to traditional processes; Cost Savings: Eliminates the need for consumables (explosives, detonators) and equipment investment in drill-and-blast operations, while reducing the cost of surrounding rock reinforcement caused by drill-and-blast disturbance, resulting in a 20%-30% reduction in the overall cost per well.

[0008] Based on the above technical solutions, as a preferred technical solution for the dismantling system of the expanded shaft tunneling machine, the bucket is used to transport construction personnel during dismantling.

[0009] Based on the above technical solutions, as a preferred technical solution for the dismantling system of the expanded shaft tunneling machine, the mobile device includes a fixed track corresponding to the wellhead, a mobile track for extending the fixed track to directly above the wellhead is provided on the other side of the wellhead, and a mobile trolley is adapted to the mobile track and the fixed track.

[0010] Based on the above technical solutions, as a preferred technical solution for the dismantling system of the expanded-hole shaft boring machine, the moving track is slidably mounted above the fixed base, and driving devices for driving the moving track to reciprocate are respectively provided on both sides of the fixed base. It should be noted that the driving device in this technical solution can be selected from various options, such as the winch used in the following technical solutions, hydraulic push rods, chain drive mechanisms, belt drive mechanisms, etc.

[0011] Based on the above technical solutions, as a preferred technical solution for the dismantling system of the expanded shaft tunneling machine, the driving device includes winch one and winch two located on both sides of the fixed base.

[0012] Based on the above technical solutions, as a preferred technical solution for the dismantling system of the expanded shaft tunneling machine, the bottom platform after the maintenance panel removes the protective platform, guardrail, column, and bucket passage is used to lift the sealing plate.

[0013] Based on the above technical solutions, as a preferred technical solution for the dismantling system of the expanded shaft tunneling machine, the supporting fixture is used to support between the cutterhead and the support shoe.

[0014] Based on the above technical solutions, as a preferred technical solution for the dismantling system of the expanded shaft tunneling machine, after the maintenance plate is lifted to the top of the derrick, the stabilizing rope is used to sequentially hoist the upper platform and the main platform out of the shaft.

[0015] Based on the above technical solutions, as a preferred technical solution for the dismantling system of the expanded shaft tunneling machine, after the main platform is hoisted to the outside of the shaft, the balance ring beam is connected to the stabilizing rope and is used to sequentially hoist the main machine's steering mechanism, main drive, support shoe, and support tooling to the outside of the shaft.

[0016] Based on the above technical solutions, as a preferred technical solution for the dismantling system of the expanded-hole shaft tunneling machine, after the support fixture is hoisted to the outside of the shaft, the balance ring beam is removed and the cutterhead main beam and cutterhead conical block are hoisted to the outside of the shaft in sequence through the stabilizing rope; if there is sufficient space in the bottom horizontal tunnel, part of the structure of the expanded-hole shaft tunneling machine is transported out through the bottom horizontal tunnel.

[0017] This invention proposes a dismantling system for an enlarged-hole shaft boring machine (TBM), which can be used for dismantling machines that directly penetrate shafts. It eliminates the need for drilling and blasting to excavate remaining rock, simplifying the process, increasing construction efficiency, providing more space for dismantling, and enhancing operational safety. Compared to existing dismantling methods for enlarged-hole TBMs, this system solves a series of problems inherent in existing technologies, such as the need to reserve a certain depth of rock for dismantling, complex transitions from mechanical to drilling and blasting methods, limited dismantling space, hazardous personnel operations, and low construction efficiency. Attached Figure Description

[0018] To more clearly illustrate the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 Application status of this utility model Figure 1 ; Figure 2 This is a partially enlarged view of the present invention; Figure 3 A top view of the mobile device; Figure 4 Application status of this utility model Figure 2 ; Figure 5 The disassembly flowchart is for using this utility model.

[0020] Explanation of icon numbers: 1. Derrick; 2. Stabilizing rope; 3. Sealing plate; 4. Bucket; 5. Inspection plate; 6. Upper platform; 7. Main platform; 8. Orientation mechanism; 9. Main drive; 10. Support shoe; 11. Connecting parts; 12. Cutterhead; 13. Moving device; 14. Balance ring beam; 15. Anchor bolt. Protection platform 501, guardrail 502, column 503, bucket access 504, bottom platform 505; Fixed base 1301, fixed rail 1302, moving rail 1303, winch one 1304, winch two 1305, moving trolley 1306; Support fixture 1001; Cutterhead main beam 1201, cutterhead conical block 1202. Detailed Implementation

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

[0022] These embodiments are provided to make the application thorough and complete, and to fully express the scope of the application to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, material composition, numerical expressions, and values ​​illustrated in these embodiments should be interpreted as merely exemplary and not as limiting.

[0023] It should be noted that, in the description of this application, unless otherwise stated, "several" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "axial," "radial," etc., indicating orientation or positional relationships are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0024] Furthermore, the terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. "Vertical" is not strictly vertical, but within the permissible margin of error. "Parallel" is not strictly parallel, but within the permissible margin of error. Terms such as "including" or "contains" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well.

[0025] It should also be noted that, in the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application depending on the specific circumstances. When a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device.

[0026] All terms used in this application have the same meaning as understood by one of ordinary skill in the art to which this application pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.

[0027] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0028] In view of the shortcomings in the above-mentioned background technology, this utility model aims to solve the problems of existing expanded hole shaft tunneling machines being unable to be completely dismantled after penetration, as well as the narrow dismantling space and dangerous operation. It proposes a dismantling system and method for expanded hole shaft tunneling machines.

[0029] Key Invention Point 1: No need to reserve a certain depth of receiving rock mass; dismantling can be carried out after the shaft is completed. This provides ample working space and facilitates operation.

[0030] Key Invention Point 2: The drilling and blasting method eliminates the need for mechanical methods, resulting in a simple process and safe construction.

[0031] Key Invention Point 3: After the vertical shaft is completed, it connects with the bottom tunnel, resulting in a significant "chimney effect," good ventilation, timely discharge of exhaust gases generated during welding and cutting operations, and a more spacious dismantling area to meet the operational requirements of personnel underground.

[0032] The core technical concept of this utility model: (1) The core objective of this utility model is to provide a novel method for dismantling a borehole-expanding vertical shaft tunneling machine. During dismantling, there is no need to reserve a certain depth of receiving rock mass. After the entire shaft is completed, dismantling can be carried out according to the method provided by this utility model. There is no need to excavate the remaining rock mass using the drill-and-blast method, the process is simple, the construction efficiency is high, the dismantling space is larger, and the operation is safer.

[0033] (2) To facilitate the transfer of components at the wellhead, this utility model includes a moving device, which comprises a fixed track, a moving track, a first winch, a second winch, and a moving trolley. Its main function is to move the components at the wellhead. The working principle is as follows: After the derrick lifts the components to the wellhead, the first winch drives the moving track and the moving trolley to the wellhead. The disassembled components are placed on the moving trolley, which then moves along the fixed track to the outside of the derrick for transfer. When work is required at the wellhead, the second winch moves the moving track and the moving trolley to one side of the derrick. This design enables convenient transportation and relocation of components at the wellhead.

[0034] (3) To ensure that the disassembled parts can be quickly and stably lifted to the ground using a stabilizing rope, this utility model is equipped with a balance ring beam to assist in lifting each part.

[0035] (4) After the power lines are removed, in order to prevent the support shoe from falling back and becoming unable to move, this utility model is equipped with support shoe fixture 1001. When the support shoe is retracted, a temporary pump station can be used as power to ensure the safe dismantling.

[0036] (5) To ensure safety during dismantling operations in the well, this utility model uses an inspection plate to lift the sealing plate above the derrick. When no work is required at the wellhead, the sealing plate can be lowered to the wellhead to prevent foreign objects from falling.

[0037] (6) To ensure the cutterhead can be smoothly removed from the well, the cutterhead is disassembled into the cutterhead main beam and the cutterhead conical block, and then removed in sequence.

[0038] It is important to note that when the tunnel is about to be completed, the excavation speed should be slowed down, and the excavated soil that has fallen into the tunnel should no longer be cleared, allowing it to accumulate naturally. After the tunnel is completed, the support shoes should be tightened against the shaft wall, the cutterhead should be buried in the excavated soil, the underground main engine should be stabilized, the support shoes should retract horizontally, and the propulsion cylinder should drive the support shoes to fall one stroke. The support shoes should tighten against the shaft wall again, the cutterhead should rotate and move downwards. Repeat the above process until the cutterhead falls to the working face. The cutterhead should then be secured with anchor bolts.

[0039] The specific implementation method is as follows: A dismantling system for a borehole-expanding vertical shaft tunneling machine, such as Figures 1 to 4 As shown, the system includes a derrick 1, a stabilizing rope 2, a sealing plate 3, a bucket 4, and a maintenance plate 5. The stabilizing rope 2 is connected to a balance ring beam 14 for assisting in lifting and dismantling the machine components. It also includes a moving device 13 for rotating the dismantling components at the wellhead, anchor bolts 15 and steel cables for temporarily fixing the cutterhead 12, a support fixture 1001 for vertically supporting the support shoe 10, and a muck pile at the working face for assisting in positioning the cutterhead 12. The core features of this embodiment are: it includes five basic components: a derrick, a stabilizing rope, a sealing plate, a bucket, and a maintenance plate; it innovatively adds five functional components: a balance ring beam (for assisting lifting), a moving device (for wellhead rotation), anchor bolts + steel cables (for fixing the cutterhead), support fixtures (for supporting the support shoe), and a muck pile at the working face (for assisting in positioning the cutterhead); and it clearly defines the tunneling machine as reaching the bottom horizontal tunnel, with the muck pile at the working face being the muck pile inside the horizontal tunnel.

[0040] Beneficial Effects: Technological Innovation: Achieves "direct shaft breakthrough dismantling," completely eliminating the complex process of "reserving a receiving section of rock mass + drill-and-blast breakthrough," simplifying procedures by over 40% and avoiding losses during the conversion between mechanical and drill-and-blast methods; Space Optimization: Based on the bottom horizontal tunnel and modular component design, the dismantling operation space is increased by 3-5 times compared to traditional narrow shafts, significantly reducing the risk of personnel working at heights and component collisions; Efficiency Improvement: Integrates functions such as hoisting, turnover, fixing, and support, avoiding frequent switching between multiple devices, shortening the total dismantling period by 20-30 days compared to traditional processes; Cost Savings: Eliminates the need for consumables (explosives, detonators) and equipment investment in drill-and-blast operations, while reducing the cost of surrounding rock reinforcement caused by drill-and-blast disturbance, resulting in a 20%-30% reduction in the overall cost per well.

[0041] Based on the above embodiments, in a preferred embodiment of the dismantling system for the reaming shaft boring machine, the bucket 4 is used to transport construction personnel during dismantling. This embodiment utilizes the original bucket of the reaming shaft boring machine, which can not only transport construction personnel up and down during dismantling, but also transport smaller disassembled parts.

[0042] Based on the above embodiments, as a preferred embodiment of the dismantling system for the expanded shaft tunneling machine, the mobile device 13 includes a fixed track 1302 corresponding to the wellhead, and a mobile track 1303 on the other side of the wellhead for extending the fixed track 1302 to directly above the wellhead. A mobile trolley 1306 is adapted to the mobile track 1303 and the fixed track 1302. The core feature of this embodiment is that the mobile device includes a fixed track corresponding to the wellhead, and a mobile track that can be extended to directly above the wellhead is provided on the other side of the wellhead, with a mobile trolley adapted on the track.

[0043] Beneficial effects: Overcoming spatial limitations: Through the "extension-retraction" design of the mobile track, the turnover range of dismantled parts is expanded from inside the shaft to outside, solving the problem of parts accumulation caused by the narrow space of traditional shaft openings; Convenient transportation: The mobile trolley runs smoothly along the track, replacing the "point-to-point transportation" of manual labor or cranes, realizing the direct transportation of parts from the shaft to the stacking area, improving transportation efficiency by more than 50%; Strong adaptability: The track length can be adjusted according to the site conditions of the shaft opening, and the carrying capacity of the mobile trolley can match different specifications of dismantled parts (from light accessories to heavy main components), applicable to various dismantling scenarios of expansion shaft tunneling machines.

[0044] Based on the above embodiments, in a preferred embodiment of the dismantling system for the expanded-hole shaft boring machine, the moving track 1303 is slidably disposed above the fixed base 1301, and driving devices for driving the moving track 1303 to reciprocate are respectively disposed on both sides of the fixed base 1301. It should be noted that the driving device in this embodiment can be selected from various options, such as the winch used in the following embodiments, a hydraulic push rod, a chain drive mechanism, a belt drive mechanism, etc.

[0045] Based on the above embodiments, as a preferred embodiment of the dismantling system for the expanded shaft tunneling machine, the driving device includes a first winch 1304 and a second winch 1305 located on both sides of the fixed base 1301. The core feature of this embodiment is that the moving track is slidably disposed above the fixed base, and the first winch and the second winch are respectively disposed on both sides of the fixed base to drive the moving track to reciprocate.

[0046] Beneficial effects: Precise control: Dual winches work together (one pulls and one releases) to achieve smooth reciprocating motion of the moving track, with a positioning accuracy of ±50mm, avoiding track deviation caused by traditional single drive and ensuring alignment accuracy during component docking and hoisting; Safe and reliable: The fixed base provides rigid support for the moving track, and the dual winches form a "double insurance" system. Even if one winch fails, the other can be temporarily braked to prevent the track from slipping and causing a safety accident; Easy operation: Remote operation is achieved through the hydraulic / electric control system of the winches, eliminating the need for personnel to have close contact with the moving track and reducing the risk of mechanical injury.

[0047] Based on the above embodiments, as a preferred embodiment of the dismantling system for the expanded-hole shaft boring machine, the bottom platform 505 of the inspection panel 5 after removing the protective platform 501, guardrail 502, column 503, and bucket passage 504 is used to lift the sealing plate 3. The core feature of this embodiment is that the bottom platform of the inspection panel after removing the protective platform, guardrail, column, and bucket passage is used to lift the sealing plate.

[0048] Beneficial effects: Equipment reuse: Idle maintenance trays can be converted into sealing tray lifting carriers without the need for additional design of dedicated lifting frames, saving equipment procurement costs (the cost of a single lifting frame is about 150,000-200,000 yuan); Simplified process: It directly replaces the complex operation of traditional "multi-hoist coordinated lifting", reducing lifting efficiency to 1 / 3 of the traditional process; Space release: After removing the unnecessary structure of the maintenance tray, its own space occupation is reduced by 40%, providing an unobstructed passage for the hoisting of other components in the shaft.

[0049] Based on the above embodiments, in a preferred embodiment of the dismantling system for the expanded shaft boring machine, the support fixture 1001 is used to support the cutterhead 12 and the support shoe 10. The core feature of this embodiment is that the support fixture is used to vertically support the support shoe, and is positioned between the cutterhead and the support shoe.

[0050] Beneficial effects: Equipment protection: During disassembly, the support fixture provides vertical rigid support for the support shoe, preventing permanent deformation of the support shoe due to its own weight or component lifting reaction force, thus reducing equipment maintenance costs; Foundation stability: The rigid connection between the support shoe and the cutter head indirectly fixes the position of the cutter head, preventing component collisions caused by cutter head shaking during disassembly; Quick assembly and disassembly: The support fixture adopts a modular design, requiring no welding and is fixed with bolts or pins, adapting to the needs of efficient disassembly.

[0051] Based on the above embodiments, as a preferred embodiment of the dismantling system for the expanded-hole shaft boring machine, after the maintenance platform 5 is raised to the top of the derrick 1, the stabilizing rope 2 is used to sequentially hoist the upper platform 6 and the main platform 7 out of the shaft. The core feature of this embodiment is: after the maintenance platform is raised to the top of the derrick, the upper platform and the main platform are sequentially hoisted out of the shaft using the stabilizing rope.

[0052] Beneficial effects: Freeing up core space: After the maintenance panel is lifted to the top of the derrick, an "unobstructed passage" is formed in the shaft from the wellhead to the main platform, avoiding the obstruction of hoisting caused by the traditional maintenance panel occupying the middle space; Orderly hoisting: Hoisting in the order of "upper platform → main platform" from top to bottom conforms to the mechanical logic of equipment disassembly (lightweight first, heavyweight later), reduces interference between components, and improves hoisting safety.

[0053] Based on the above embodiments, as a preferred embodiment of the dismantling system for the expanded-hole shaft boring machine, after the main platform 7 is hoisted to the outside of the shaft, the balance ring beam 14 is connected to the stabilizing rope 2 and used to sequentially hoist the main machine's steering mechanism 8, main drive 9, support shoe 10, and support fixture 1001 to the outside of the shaft. The core feature of this embodiment is: after the main platform is hoisted to the outside of the shaft, the balance ring beam is connected to the stabilizing rope and used to sequentially hoist the main machine's steering mechanism, main drive, support shoe, and support fixture to the outside of the shaft.

[0054] Beneficial effects: Load distribution: The balance ring beam distributes the weight of heavy components such as the steering mechanism (approximately 40t) and main drive (approximately 75t) to multiple stabilizing ropes (usually 3-4 ropes), reducing the load on a single stabilizing rope by 30%-50% and preventing overload breakage; Stable lifting: The balance ring beam can automatically adjust the force balance at each lifting point, reducing swaying during component lifting (sway amplitude controlled within 100mm) and preventing collisions with the shaft wall; Adaptability to heavy components: Compared to traditional single-point lifting tools, the multi-point design of the balance ring beam can match main components of different sizes, eliminating the need for frequent lifting tool changes and improving lifting efficiency by 40%.

[0055] Based on the above embodiments, as a preferred embodiment of the dismantling system for the expanded-hole shaft boring machine, after the support fixture 1001 is hoisted to the outside of the shaft, the balance ring beam 14 is removed, and the cutterhead main beam 1201 and cutterhead conical block 1202 are sequentially hoisted to the outside of the shaft via the stabilizing rope 2; if there is sufficient space in the bottom horizontal tunnel, part of the structure of the expanded-hole shaft boring machine can be transported out through the bottom horizontal tunnel. The core feature of this embodiment is: after the support fixture is hoisted to the outside of the shaft, the balance ring beam is removed, and the cutterhead main beam and cutterhead conical block are sequentially hoisted via the stabilizing rope; if there is sufficient space in the bottom horizontal tunnel, part of the structure can be transported out through the horizontal tunnel.

[0056] Beneficial effects: Phased disassembly: Disassembly is carried out in the order of "main unit assembly → cutterhead assembly", which is logically clear and avoids cross-interference between components, especially suitable for hoisting oversized components; Flexible transportation: Combining the dual modes of "vertical shaft hoisting + horizontal transportation", when the horizontal tunnel clearance is large, the cutterhead cone block, support tooling, etc. can be directly transported out via rail transport vehicle, reducing the number of vertical shaft hoisting operations; Reduced shaft head pressure: Some components are diverted through the horizontal tunnel, avoiding excessive accumulation of components in the shaft head turnover area and improving the safety of shaft head operations.

[0057] As a preferred implementation of a dismantling system for a borehole-expanding vertical shaft tunneling machine, such as Figures 1-3 As shown, the expanded-hole vertical shaft tunneling machine of this utility model includes, from top to bottom, a derrick 1, a stabilizing rope 2, a sealing plate 3, a bucket 4, a maintenance plate 5, an upper platform 6, a main platform 7, a steering mechanism 8, a main drive 9, a support shoe 10, a connecting piece 11, a cutterhead 12, a moving device 13, and a balance ring beam 14.

[0058] The main components of the derrick 1, stabilizing rope 2, and bucket 4 are used for lifting materials, personnel, and various components. The sealing plate 3 is mainly used to protect the safety of downhole operations. The maintenance plate 5 is used to assist in the maintenance of various components and systems. The upper platform 6 is suspended by the derrick 1 and stabilizing rope 2 and consists of one or more platforms, which are used to place the supporting equipment for downhole main unit construction. The main unit platform 7 is connected to the downhole main unit and moves with it, and is used to place the supporting equipment for downhole main unit construction. The cutterhead 12 includes the cutterhead main beam and the cutterhead conical block, on which multiple roller cutters are distributed.

[0059] The mobile device 13 includes a fixed base 1301, a fixed rail 1302, a mobile rail 1303, a winch 1304, a winch 2 1305, a mobile trolley 1306, etc.; its main function is to move the components at the wellhead; the balance beam 14 is used to assist in lifting the components.

[0060] The specific disassembly process is as follows: Figure 5 As shown: (I) Preparatory work After the shaft is completed, the equipment is moved to the designated position, and preparations for dismantling are made. Anchor points are drilled on the rock wall above the cutterhead 12, and anchor rods 15 are installed to fix the cutterhead 12.

[0061] (II) Remove the side blades of the cutter head and fix the cutter head. 1. The support shoe 10 is used to tighten the support of the main unit on the well wall. The cutterhead 12 is then lifted as a whole. After the equipment is stable, personnel enter the cutterhead 12 to remove the side cutters.

[0062] 2. After the cutting tools and bolts are removed, personnel evacuate and the cutter head 12 is lowered to the working face. The cutter head is buried in the slag to ensure the stability of the equipment.

[0063] 3. Anchor rods 15 are installed above the cutter head 12 to fix the cutter head 12 and assist in the dismantling of the cutter head in sections.

[0064] (III) Dismantle pipelines: Disconnect cables, air pipes, water pipes and other pipelines connecting the platform and the host; place tooling 1001 at the bottom of the support shoe 10 for support.

[0065] (iv) Remove the auxiliary structures of the maintenance panel and lift the sealing plate: Remove the auxiliary structures of the maintenance panel 5 such as the protective platform 501, guardrail 502, column 503, bucket passage 504, etc., and use the bottom platform 505 of the maintenance panel 5 to lift the sealing plate 3 to a certain height. When the wellhead is not in operation, the sealing plate 3 falls to the wellhead.

[0066] (V) Installation of mobile device: A mobile device 13 is installed at the wellhead. The mobile device 13 includes a fixed base 1301, a fixed rail 1302, a mobile rail 1303, a winch 1304, a winch 2 1305, and a mobile trolley 1306. Its working principle is as follows: After the derrick 1 lifts the component to the wellhead, the winch 1304 drives the mobile rail 1303 and the mobile trolley 1306 to move to the wellhead. The disassembled component is placed on the mobile trolley 1306, and the mobile trolley 1306 moves along the fixed rail 1302 to the outside of the derrick 1 for transfer. When the wellhead needs to be operated, the winch 2 1305 is used to move the mobile rail 1303 to one side of the derrick 1.

[0067] (vi) Dismantling the upper platform: Lift the sealing plate 3 and the maintenance plate 5 to the top of the derrick 1. Use the derrick 1 and the stabilizing rope 2 to lift the upper platform 6 to the wellhead. Use the winch 1304 to drive the moving rail 1303 and the moving trolley 1306 to the wellhead. Place the upper platform 6 on the moving trolley 1306. Dismantle each layer of the platform from bottom to top. The moving trolley 1306 drives the upper platform 6 to move along the fixed rail 1302 to the outside of the derrick 1 for transfer.

[0068] (vii) Dismantling the main unit platform: Personnel ride in bucket 4 to the main unit below, separate the main unit platform 7 from the main unit, and then enter bucket 4 to ascend to the well. Using the derrick 1 and stabilizing rope 2, the main unit platform 7 is lifted to the wellhead. Using winch 1304, the moving track 1303 is moved to the wellhead. The main unit platform 7 is placed on the moving trolley 1306. The moving trolley 1306 is moved along the fixed track 1302 to the outside of the derrick 1 for transfer. When the wellhead needs to be operated, winch 2 1305 is used to move the moving track 1303 to one side of the derrick 1.

[0069] (viii) Dismantling the directional mechanism: Move the balance ring beam 14 to the wellhead using the mobile trolley 1306 and suspend it using the stabilizing rope 2. First, lower the balance ring beam 14 to the upper part of the main unit. Personnel descend to the balance ring beam 14 via the bucket 4. Lower the convenient ladder to the main unit from the balance ring beam 14 platform. Set the limiting block 801 on the directional mechanism 8 to prevent the directional mechanism 8 from rotating. Dismantle the directional mechanism 8 and the underground main unit. Use the balance ring beam 14 to lift the directional mechanism 8. After personnel enter the bucket 4, they are lifted to the wellhead. Then lift the directional mechanism 8 to the wellhead and transport the directional mechanism 8 out of the site using the mobile device 13. The specific steps are the same as above.

[0070] (ix) Dismantling the main drive: Move the balance ring beam 14 to the wellhead using the mobile trolley 1306 and suspend it using the stabilizing rope 2. First, lower the balance ring beam 14 to the upper part of the main unit. Personnel descend to the balance ring beam 14 via the bucket 4. Lower the convenient ladder to the main unit from the balance ring beam 14 platform. Dismantle the main drive 9 in sections. After personnel enter the bucket 4, they are lifted to the wellhead. Use the stabilizing rope 2 to suspend the balance ring beam 14 and lift the main drive 9 to the wellhead. Use the mobile device 13 to transport the main drive 9 out of the site. The specific steps are the same as above.

[0071] (x) Removal of support shoes: Before lifting each set of shoe blocks, the internal pressure of the support shoe 10 must be manually released. Then, the support shoe is retrieved using a hand-operated hoist or other means until it is completely retracted and locked. Using the stabilizing rope 2 to suspend the balance ring beam 14, the support shoe 10 and tooling 1001 are lifted to the wellhead in sequence. The support shoe 10 and tooling 1001 are then transported out of the site in sequence using the moving device 13. The specific steps are the same as above.

[0072] (xi) Dismantling the cutterhead: Use the anchor bolt 15 to pull the cutterhead side blocks to dismantle the cutterhead in sections. Then use the derrick 1 and the stabilizing rope 2 to lift the cutterhead main beam 1201 and the cutterhead conical block 1202 to the wellhead. Use the moving device to transport the cutterhead main beam 1201 and the cutterhead conical block 1202 out of the site in sequence. The specific steps are the same as above.

[0073] It should be noted that: 1. The upper platform and the host platform can have one or more layers, or there can be only an upper platform or a host platform; 2. This utility model discloses a disassembly method for one type of reaming shaft tunneling machine. Other types of reaming shaft tunneling machines may have different component names or structures, but they all fall within the protection scope of this utility model. 3. This utility model lists detailed disassembly steps. If the disassembly steps are partially adjusted, they still fall within the protection scope of this utility model.

[0074] 4. This utility model indicates that if the cutter head is buried deep and relatively stable in the slag, it is not necessary to use anchor rods to fix the cutter head.

[0075] 5. If the space in the bottom horizontal tunnel allows, some components can be dismantled in sections and transported out of the cave through the horizontal tunnel. This will not be described in detail here.

[0076] 6. When removing the side blades, if there is sufficient space around the cutter head, the side blades can be removed without lifting the cutter head.

[0077] Any aspects of this utility model that are not detailed herein are conventional technical means known to those skilled in the art.

[0078] The above content shows and describes the basic principles, main features, and beneficial effects of this utility model. The above description is merely a preferred embodiment of this utility model and is not intended to limit it. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A dismantling system for a borehole-expanding vertical shaft tunneling machine, characterized in that: The machine includes a derrick (1), a stabilizing rope (2), a sealing plate (3), a bucket (4), and a maintenance plate (5). The stabilizing rope (2) is connected to a balance ring beam (14) for assisting in lifting and dismantling the machine components. It also includes a moving device (13) for rotating the dismantling components at the wellhead, an anchor rod (15) and a steel cable for temporarily fixing the cutterhead (12), a support tool (1001) for vertically supporting the support shoe (10), and a muck pile at the working face for assisting in positioning the cutterhead (12). The expanded hole vertical shaft tunneling machine is a tunneling machine that penetrates to the bottom horizontal tunnel, and the muck pile at the working face is a muck pile inside the horizontal tunnel.

2. The dismantling system for a borehole-expanding vertical shaft tunneling machine according to claim 1, characterized in that: The bucket (4) is used to transport construction personnel during dismantling.

3. The dismantling system for an enlarged-hole shaft boring machine according to claim 1 or 2, characterized in that: The mobile device (13) includes a fixed track (1302) corresponding to the wellhead, and a mobile track (1303) for extending the fixed track (1302) to the top of the wellhead is provided on the other side of the wellhead. A mobile trolley (1306) is adapted to the mobile track (1303) and the fixed track (1302).

4. The dismantling system for a borehole-expanding vertical shaft tunneling machine according to claim 3, characterized in that: The movable track (1303) is slidably disposed above the fixed base (1301), and the fixed base (1301) is provided with a drive device on each side for driving the movable track (1303) to reciprocate.

5. The dismantling system for a borehole-expanding vertical shaft tunneling machine according to claim 4, characterized in that: The drive unit includes winch one (1304) and winch two (1305) located on both sides of the fixed base (1301).

6. The dismantling system for a borehole-expanding vertical shaft tunneling machine according to any one of claims 1-2 and 4-5, characterized in that: The bottom platform (505) of the inspection plate (5) after removing the protective platform (501), guardrail (502), column (503), and bucket channel (504) is used to lift the sealing plate (3).

7. The dismantling system for a borehole-expanding vertical shaft tunneling machine according to claim 6, characterized in that: The support fixture (1001) is used to support the cutter head (12) and the support shoe (10).

8. The dismantling system for an enlarged-hole shaft boring machine according to any one of claims 1-2, 4-5, and 7, characterized in that: After the maintenance panel (5) is raised to the top of the derrick (1), the stabilizing rope (2) is used to hoist the upper platform (6) and the main platform (7) out of the well in sequence.

9. The dismantling system for a borehole-expanding vertical shaft tunneling machine according to claim 8, characterized in that: After the main platform (7) is hoisted to the outside of the well, the balance ring beam (14) is connected to the stabilizing rope (2) and is used to hoist the main host, the steering mechanism (8), the main drive (9), the support shoe (10), and the support fixture (1001) to the outside of the well in sequence.

10. The dismantling system for a borehole-expanding vertical shaft tunneling machine according to claim 9, characterized in that: After the support fixture (1001) is hoisted to the outside of the well, the balance ring beam (14) is removed and the cutterhead main beam (1201) and cutterhead cone block (1202) are hoisted to the outside of the well in sequence through the stabilizing rope (2); if there is enough space in the bottom horizontal tunnel, part of the structure of the expanded hole vertical shaft tunneling machine can be transported out through the bottom horizontal tunnel.

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