Crawler-type rock tunnel boring machine and transition method thereof

Abstract

The invention relates to the technical field of TBM equipment, in particular to a crawler-type rock tunnel boring machine and a transition method thereof, and the equipment comprises a cutterhead, a shield, a main drive, a main beam supporting and propelling mechanism and a crawler walking module; the cutterhead is mounted on one side of the shield; the main drive is mounted on the other side of the shield; the main drive is rotationally connected with the cutter head so as to drive the cutter head to rotate; the main beam supporting and propelling mechanism is connected with the main drive so as to drive the cutter head to move in the axial direction of a main beam of the main beam supporting and propelling mechanism. The crawler walking module comprises a crawler chassis, a lifting mechanism, a sliding bearing and a limiting piece; the lifting mechanism is arranged on the crawler chassis; the lifting mechanism is connected with the sliding bearing; a first clamping groove is formed in the bottom end of the main beam supporting and propelling mechanism, and the sliding bearing is in sliding connection with the first clamping groove in the axial direction of the main beam; when the crawler walking module moves to a preset position below the main beam supporting and propelling mechanism, the crawler walking module and the main beam supporting and propelling mechanism are fixed through a limiting piece; the lifting mechanism can drive the sliding bearing to move in the vertical direction.

Description

Technical Field

[0001] The invention relates to the technical field of TBM equipment, and in particular to a crawler type rock tunnel boring machine and a transfer method thereof. Background Art

[0002] With the acceleration of underground space construction and underground resource exploitation and the development of design technology, TBM (full-section tunnel boring machine) equipment will face tunnels of different geology, diameters and types. In recent years, TBM equipment has been widely used in the fields of mines and coal mines, and has achieved good results in the construction of single tunnels. However, with the increasing mining intensity and output of mining working faces, the required transportation and ventilation sections are increasing year by year. Especially in high-gas mines, single-lane layout often cannot meet production requirements, and a multi-lane layout with 3-5 or even more tunnels has emerged in one working face, which puts higher requirements on the transfer of TBM equipment.

[0003] Existing rock tunnel boring machines, whether open-type TBMs or shield-type TBMs, are basically used for the construction of a certain tunnel. After the construction is completed, its mission is completed and it is rarely necessary to transfer. When encountering a situation where transfer is required, the whole machine is often disassembled into modules first, and then each module is transported to the next work area by heavy-duty transport vehicles, flatbed trucks and other transportation tools, and then assembled and started again. For example, the patent: Trackless flat car for TBM, mobile TBM and construction method (CN116181343A), based on the needs of transfer, sets the starting device on the trackless flat car to realize the rapid start of the vehicle-mounted host. After the excavation is completed, the host and the modularization are matched to move forward or retreat to the trackless flat car to realize the transfer operation. The above-mentioned transfer operation method requires disassembly and assembly. Although it saves time compared with the general conventional TBM transfer, it is still time-consuming and labor-intensive, and this method requires custom-made trackless flat cars, which adds additional costs.

[0004] There is also some research on tunneling equipment with integrated crawler chassis. For example, the patent: Mobile Underground Tunnel Boring Machine Device (CN111684144B) integrates a crawler chassis on the tunnel boring machine, which can be transferred by crawler walking. However, the crawler chassis of this patent is fixed under the main machine. When the tunnel of the tunnel boring machine main machine is seriously slag-accumulated, the crawler chassis will be stuck, thus affecting the tunneling of the entire tunnel boring machine.

[0005] Therefore, the disassembly and assembly of existing rock tunnel boring machines and transfer equipment is rather complicated, and it is difficult to adapt to the frequent tunnel transfer and excavation needs underground. Summary of the invention

[0006] 1. Technical issues to be resolved

[0007] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a crawler rock tunnel boring machine and a transfer method thereof, which solves the technical problem that the disassembly and assembly of the existing rock tunnel boring machine and the transfer equipment are relatively complicated.

[0008] (II) Technical solution

[0009] In order to achieve the above-mentioned object, the crawler-type rock tunnel boring machine of the present invention comprises a cutter head, a shield, a main drive, a main beam support propulsion mechanism and a crawler walking module;

[0010] The cutter disc is mounted on one side of the shield; the main drive is mounted on the other side of the shield; the main drive is rotatably connected to the cutter disc so as to drive the cutter disc to rotate; the main beam supporting propulsion mechanism is connected to the main drive so as to drive the cutter disc to move axially along the main beam of the main beam supporting propulsion mechanism;

[0011] The crawler walking module includes a crawler chassis, a lifting mechanism, a sliding bearing and a limit piece; the lifting mechanism is arranged on the crawler chassis; the lifting mechanism is connected to the sliding bearing; a first slot is provided at the bottom end of the main beam supporting and propulsion mechanism, and the sliding bearing is axially slidably connected to the first slot along the main beam; when the crawler walking module moves to a preset position below the main beam supporting and propulsion mechanism, the two are fixed by the limit piece; the lifting mechanism can drive the sliding bearing to move vertically.

[0012] Optionally, the crawler walking module further includes a crawler deviation adjustment mechanism and a pair of crawlers;

[0013] The crawler track deviation adjustment mechanism is installed at the bottom of the crawler chassis;

[0014] The pair of crawlers are connected to the two ends of the crawler adjustment mechanism in a one-to-one correspondence so as to be able to adjust the angle α between the pair of crawlers.

[0015] Optionally, the crawler walking module further includes a trapezoidal hinge plate;

[0016] The trapezoidal hinge plate is installed at the bottom end of the crawler chassis; the crawler deviation adjustment mechanism is arranged above the trapezoidal hinge plate;

[0017] A V-shaped ear plate is arranged on the side of the crawler track; two free ends of the V-shaped ear plate are correspondingly hinged to the crawler track deviation adjustment mechanism and the trapezoidal hinge plate.

[0018] Optionally, the crawler walking module further includes a slag blocking plate;

[0019] The slag blocking plate is connected to the crawler chassis, and the slag blocking plate is arranged between the shield and the crawler.

[0020] Optionally, the main beam support propulsion mechanism is provided with a rear support and a pair of support shoes;

[0021] The rear support can be lifted and lowered in the vertical direction; a pair of support shoes can correspondingly abut against two side walls of the tunnel; and the crawler walking module can pass through the inner side of the rear support.

[0022] Optionally, the crawler rock tunnel boring machine further comprises a muck conveyor;

[0023] The slag conveyor is connected to the shield; a slag discharge channel is installed on the crawler chassis; the slag conveyor extends from the inside of the cutter disc to the slag discharge channel.

[0024] Optionally, the crawler rock tunnel boring machine further includes a rear supporting device;

[0025] The main beam supporting propulsion mechanism is detachably connected to the rear supporting device;

[0026] The crawler walking module is detachably provided at the bottom end of the rear supporting device.

[0027] Optionally, a plurality of the rear supporting devices are detachably connected along the axial direction of the main beam;

[0028] The bottom ends of the plurality of rear supporting devices are all provided with the crawler walking module.

[0029] Furthermore, the present invention also provides a method for transferring a crawler-type rock tunnel boring machine, the method for transferring a crawler-type rock tunnel boring machine is implemented based on the crawler-type rock tunnel boring machine as described above, and the method for transferring comprises:

[0030] S1, the cutterhead, the shield, the main drive and the main beam support propulsion mechanism are assembled outside the tunnel to form a main engine excavation module;

[0031] S2, the lifting mechanism drives the sliding bearing to rise and fall to the height corresponding to the first slot; the crawler chassis moves axially along the main beam to clip the sliding bearing into the preset position in the first slot; the crawler chassis and the main beam support and propulsion mechanism are fixed through the limiter; the lifting mechanism lifts the main beam support and propulsion mechanism, and the crawler walking module transports the main engine excavation module to the tunnel face;

[0032] S3. The limiting member is removed, and the crawler walking module is withdrawn from under the main engine excavation module, and the main engine excavation module excavates normally.

[0033] Optionally, when the main beam supporting propulsion mechanism fails, the main beam supporting propulsion mechanism is connected to the crawler walking module, and the crawler walking module is used as an auxiliary power for the main beam supporting propulsion mechanism.

[0034] (III) Beneficial effects

[0035] The beneficial effects of the present invention are:

[0036] The main beam of the main beam support propulsion mechanism is provided with a first slot that matches the sliding bearing. The sliding bearing is lifted to the height of the first slot by the lifting mechanism, and then the sliding bearing is driven to move in the length direction of the first slot by the crawler chassis until the sliding bearing is moved to the preset position of the first slot, or the crawler chassis is moved to the preset position below the main beam support propulsion mechanism, and the crawler walking module is fixed to the main beam support propulsion mechanism by the limiter to complete the connection between the main engine excavation module and the crawler walking module. The disassembly and assembly efficiency of the main engine excavation module and the crawler walking module is effectively improved through the "one lift, two move, and three fix" disassembly and assembly method. The crawler walking module is controlled by remote control, which saves time and effort, and improves the adaptability of the crawler rock tunnel boring machine to the frequent transfer requirements underground.

[0037] By holding the supporting components corresponding to the main beam support and propulsion mechanism tightly against the tunnel wall and then removing the limiter of the crawler walking module, the crawler walking module can be withdrawn from under the main beam support and propulsion mechanism, thereby preventing the crawler walking module from affecting the normal excavation of the main engine excavation module and avoiding the risk of the crawler walking module being stuck due to slag accumulation in the tunnel.

[0038] In case of machine jam or other adverse geological conditions, or when the support shoe is loose or partially collapsed, resulting in failure of the main beam support propulsion mechanism or insufficient propulsion reaction force, the crawler walking module can also be used as auxiliary power. It only needs to be quickly installed to assist in getting out of trouble, or use the crawler walking module to temporarily provide excavation thrust. The efficient disassembly and assembly method of the crawler walking module enables it to flexibly adapt to a variety of harsh working environments.

[0039] A first slot is opened at the bottom end of the main beam supporting propulsion mechanism. The first slot is adapted to the shape of the sliding bearing. By replacing sliding bearings of different types, it can be connected to the first slot of corresponding size. The crawler walking module does not need to be customized, which greatly simplifies the connection method between the main excavation module and the crawler walking module and reduces construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a schematic diagram of the connection between the crawler-type rock tunnel boring machine of the present invention and the rear supporting device;

[0041] Figure 2It is a schematic diagram of the crawler-type rock tunnel boring machine of the present invention walking on a city gate tunnel-shaped section;

[0042] Figure 3 It is a schematic diagram of the crawler-type rock tunnel boring machine of the present invention walking on an arc section;

[0043] Figure 4 It is an exploded schematic diagram of the crawler-type rock tunnel boring machine and the subsequent supporting devices of the present invention.

[0044] [Description of Reference Numerals]

[0045] 1: Knife disc;

[0046] 2: Shield;

[0047] 3: Main drive;

[0048] 4: Main beam support propulsion mechanism; 41: Main beam; 42: First card slot; 43: Rear support; 44: Support shoe;

[0049] 5: crawler walking module; 51: crawler chassis; 52: lifting mechanism; 53: sliding bearing; 54: crawler deviation adjustment mechanism; 55: trapezoidal hinge plate; 56: V-shaped ear plate; 57: slag blocking plate;

[0050] 6: Muck conveyor;

[0051] 8: Rear supporting equipment. DETAILED DESCRIPTION

[0052] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0053] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0054] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0055] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; "connection" can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] See also Figure 1 and Figure 2 The present invention provides a crawler rock tunnel boring machine, which includes a cutter head 1, a shield 2, a main drive 3, a main beam supporting and propulsion mechanism 4 and a crawler walking module 5; the cutter head 1 is installed on one side of the shield 2; the main drive 3 is installed on the other side of the shield 2; the main drive 3 is rotatably connected with the cutter head 1 to drive the cutter head 1 to rotate; the main beam supporting and propulsion mechanism 4 is connected with the main drive 3 to drive the main drive 3, the shield 2 and the cutter head 1 to move axially along the main beam 41 of the main beam supporting and propulsion mechanism 4; the crawler walking module 5 includes a crawler chassis 51, a lifting mechanism 52 , sliding bearing 53 and limit piece; the lifting mechanism 52 is arranged on the crawler chassis 51; the lifting mechanism 52 is connected with the sliding bearing 53; the bottom end of the main beam supporting propulsion mechanism 4 is provided with a first card slot 42, the first card slot 42 is a guide slot, the shape of which is adapted to the shape of the sliding bearing 53, and the sliding bearing 53 is connected with the first card slot 42 along the axial sliding of the main beam 41; when the crawler walking module 5 moves to the preset position below the main beam supporting propulsion mechanism 4, the two are fixed by a limit piece, and the limit piece can be selected from bolts and pins; the lifting mechanism 52 can drive the sliding bearing 53 to move vertically.

[0057] The cutterhead 1, the shield 2, the main drive 3 and the main beam support propulsion mechanism 4 are assembled to form the main machine excavation module. Among them, the cutterhead 1 is located at the front end of the crawler rock tunnel boring machine and is used to crush the rock mass. The shield 2 is used to protect the main drive 3 and other important components inside it. The main drive 3 is used to provide rotational power to the cutterhead. The main beam support propulsion mechanism 4 is used to support the main drive 3, the shield 2 and the cutterhead 1, and at the same time provide the cutterhead 1 with propulsion force for excavation. The crawler walking module 5 is used to move the whole machine forward and backward, driving the main machine excavation module to transfer; at the same time, it can also provide a certain propulsion force for excavation and be used as an auxiliary power.

[0058] The main beam 41 of the main beam support propulsion mechanism 4 is provided with a first slot 42 matched with the sliding bearing 53. The sliding bearing 53 is lifted to the height of the first slot 42 by the lifting mechanism 52, and then the sliding bearing 53 is driven to move in the length direction of the first slot 42 by the crawler chassis 51 until the sliding bearing 53 is moved to the preset position of the first slot 42, or the crawler chassis 51 is moved to the preset position below the main beam support propulsion mechanism 4, and the crawler walking module 5 is fixed to the main beam support propulsion mechanism 4 by the limiter, so as to complete the connection between the main machine excavation module and the crawler walking module 5. The disassembly and assembly method of "one lifting, two moving and three fixing" effectively improves the disassembly and assembly efficiency of the main machine excavation module and the crawler walking module 5. The crawler walking module 5 is controlled by remote control, which saves time and effort, and improves the adaptability of the crawler rock tunnel boring machine to the frequent transfer requirements underground.

[0059] By holding the supporting components corresponding to the main beam supporting and propulsion mechanism 4 tightly against the tunnel wall and then removing the limiting parts of the crawler walking module 5, the crawler walking module 5 can be withdrawn from under the main beam supporting and propulsion mechanism 4, thereby preventing the crawler walking module 5 from affecting the normal excavation of the main engine excavation module and avoiding the risk of the crawler walking module 5 being stuck due to slag accumulation in the tunnel.

[0060] In case of machine jam or other adverse geological conditions, or when the support shoe 44 is loose or partially collapsed, resulting in failure of the main beam support propulsion mechanism 4 or insufficient propulsion reaction force, the crawler walking module 5 can also be used as auxiliary power. It only needs to be quickly installed to assist in getting out of trouble through the crawler walking module 5, or use the crawler walking module 5 to temporarily provide excavation thrust. The efficient disassembly and assembly method of the crawler walking module 5 enables it to flexibly adapt to a variety of harsh working environments.

[0061] A first slot 42 is provided at the bottom end of the main beam supporting propulsion mechanism 4. The first slot 42 is adapted to the shape of the sliding bearing 53. By replacing sliding bearings 53 of different types, the first slot 42 of corresponding size can be connected thereto. The crawler walking module 5 does not need to be customized, which greatly simplifies the connection method between the main excavation module and the crawler walking module 5 and reduces the construction cost.

[0062] See also Figure 3, the crawler walking module 5 also includes a crawler adjustment mechanism 54 and a pair of crawlers; the crawler adjustment mechanism 54 is installed at the bottom of the crawler chassis 51; the pair of crawlers are connected to the two ends of the crawler adjustment mechanism 54 one by one, so as to be able to adjust the angle α between the pair of crawlers, and the angle α is the angle between the vertical lines of the corresponding top surfaces of the pair of crawlers. The crawler can also be replaced by wheels or other walking drive methods. Since the crawler walking module 5 does not always walk on the gate-shaped section, and sometimes walks on the arc section, the crawler adjustment mechanism 54 is set to improve the stability of the crawler chassis 51 walking on the arc section. In this embodiment, the crawler adjustment mechanism 54 uses an oil cylinder, and the two ends of the oil cylinder are correspondingly hinged with a pair of crawlers. The size of the angle α is adjusted by the extension and contraction of the crawler adjustment mechanism 54, so as to achieve the angle adjustment of the crawler relative to the bottom surface of the tunnel, so that the bottom surface of the crawler is basically parallel to the corresponding bottom surface of the tunnel, which improves the stability of the crawler walking module 5 walking on the arc section and improves the reliability of the crawler walking module 5 to transport the main engine excavation module. Optionally, the track deviation adjustment mechanism 54 includes a pair of cylinders, which are hinged to the pair of tracks in a one-to-one correspondence, so as to independently adjust the lateral deviation angle of the tracks relative to the bottom surface of the tunnel, further improving the stability of the track walking module 5 when walking on sections of different shapes.

[0063] Furthermore, the crawler walking module 5 further includes a trapezoidal hinge plate 55; the trapezoidal hinge plate 55 is installed at the bottom end of the crawler chassis 51; the crawler deviation adjustment mechanism 54 is arranged above the trapezoidal hinge plate 55; a V-shaped ear plate 56 is arranged on the side of the crawler; the two free ends of the V-shaped ear plate 56 are correspondingly hinged to the crawler deviation adjustment mechanism 54 and the trapezoidal hinge plate 55. Specifically, compared with the square hinge plate, the upper end width of the trapezoidal hinge plate 55 is smaller than the lower end, see Figure 3 When the track deviation adjustment mechanism 54 retracts, the upper ends of the pair of tracks will approach each other, so the upper end of the trapezoidal hinge plate 55 can avoid the deflected track well, thereby increasing the maximum deviation adjustment angle of the track and improving the adaptability of the track walking module 5 to walk on different arc sections. The V-shaped ear plate 56 is correspondingly provided with hinge points connecting the trapezoidal hinge plate 55 and the track deviation adjustment mechanism 54, so that the two hinge points move synchronously, improving the stability and accuracy of the track deviation adjustment. In addition, the V-shaped structure of the V-shaped ear plate 56 can avoid the upper end of the trapezoidal hinge plate 55, ensuring that the track can swing to the maximum deviation adjustment angle position.

[0064] Secondly, the crawler walking module 5 also includes a slag blocking plate 57; the slag blocking plate 57 is connected to the crawler chassis 51, and the slag blocking plate 57 is arranged between the shield 2 and the crawler. In this embodiment, the slag blocking plate 57 includes a vertical plate and a bending plate. The vertical plate is arranged between the shield 2 and the crawler, and the two ends of the bending plate are connected to the vertical plate and the crawler chassis 51 correspondingly. The bending angle of the bending plate is set according to the relative deviation between the top of the vertical plate and the connection point of the crawler chassis 51, so as to achieve relative fixation of the vertical plate and the crawler chassis 51. The slag blocking plate 57 is used to block the slag splashed under the cutter head 1, to prevent the slag from affecting the walking and adjustment of the crawler walking module 5, and to improve the reliability of the crawler walking module 5.

[0065] In addition, the main beam support propulsion mechanism 4 is provided with a rear support 43 and a pair of support shoes 44; the rear support 43 can be lifted and lowered vertically and abut against the bottom surface of the tunnel; the pair of support shoes 44 can abut against the two side walls of the tunnel; the crawler walking module 5 can pass through the inner side of the rear support 43. Specifically, after the crawler walking module 5 transports the main engine excavation module to the tunnel face, the crawler walking module 5 needs to be withdrawn from the bottom of the main engine excavation module. Before the sliding bearing 53 withdraws from the first slot 42, the supporting components of the main beam support propulsion mechanism 4, namely the rear support 43 and the support shoes 44, are first used to support the tunnel wall. The tunnel wall gives the main beam support propulsion mechanism 4 a reaction force to achieve the fixation of the tunnel to the main beam support propulsion mechanism 4. Then the limiter is removed, and the crawler walking module 5 can be withdrawn; thereafter, the main engine excavation module is constructed normally and is pushed in the tunnel by its own hydraulic clamp. The space enclosed by the bottom surface of the tunnel, the bottom surface of the main beam supporting propulsion mechanism 4 and a pair of support shoes 44 can allow the tracked walking module 5 to pass through. The top support components of the main engine excavation module during normal construction are used to assist the tracked walking module 5 to exit. There is no need to add additional top support components, which saves construction costs and improves transfer efficiency.

[0066] When the crawler walking module 5 is needed for transfer, the crawler walking module 5 automatically walks to the rear of the main beam 41, adjusts the appropriate height through the lifting device 52, so that the sliding bearing 53 can just enter the first clamping groove 42 on the main beam, and then moves the crawler walking module 5 to the preset position below the main beam, installs the limiter, and then lifts the sliding bearing 53 through the lifting device 52, thereby lifting the main engine excavation module, so that the gravity of the main engine excavation module acts on the crawler walking module 5, and the transfer can be completed through the crawler walking module 5. When the crawler walking module 5 is not needed, the rear support 43 of the main beam support and propulsion mechanism 4 is propped up, and then the support shoe 44 tightens the side walls of both sides of the tunnel, and the limiter of the crawler walking module 5 is removed, and the crawler walking module 5 can be withdrawn from the bottom of the main beam support and propulsion mechanism 4, thereby preventing the crawler walking module 5 from affecting the normal excavation of the main engine excavation module and avoiding the risk of the crawler walking module 5 being stuck due to slag accumulation in the tunnel.

[0067] Furthermore, the crawler rock tunnel boring machine also includes a slag conveyor 6; the slag conveyor 6 is connected to the shield 2; a slag discharge channel is installed on the crawler chassis 51; the slag conveyor 6 extends from the inside of the cutter disc 1 to the slag discharge channel. Specifically, the slag conveyor 6 is used to transport the slag shoveled by the shovel, and the slag at the cutter disc 1 is transported to the slag discharge channel through the slag conveyor 6, and then discharged to the outside of the tunnel through the slag discharge channel. The slag discharge channel can be a slag discharge method driven by a screw rod, and then transported to the outside of the tunnel through a belt. The slag conveyor 6 can discharge most of the slag from the face; a small amount of slag splashes out from the bottom of the cutter disc 1, and this part of the slag is blocked by the slag plate 57. Through the effective cooperation of the slag conveyor 6 and the slag plate 57, the stability of the crawler walking module 5 when used as an auxiliary power can be effectively guaranteed, and the situation where the crawler chassis 51 is stuck due to excessive slag at the bottom of the tunnel can be effectively avoided, and the reliability of the joint operation of the main excavation module and the crawler walking module 5 is improved.

[0068] Secondly, the crawler rock tunnel boring machine also includes a rear supporting device 8; the main beam support propulsion mechanism 4 is detachably connected to the rear supporting device 8; and the bottom end of the rear supporting device 8 is detachably provided with a crawler walking module 5. The rear supporting device 8 is used to carry necessary auxiliary equipment for the tunnel boring machine, such as water supply, power supply, hydraulic power and other equipment. Similarly, the connection method between the rear supporting device 8 and the crawler walking module 5 can be analogous to the connection method between the main beam support propulsion mechanism 4 and the crawler walking module 5. By opening a second card slot at the bottom end of the rear supporting device 8, the second card slot cooperates with the sliding bearing 53 to realize the rapid disassembly and assembly of the rear supporting device 8, thereby improving the flexibility and efficiency of the transfer.

[0069] In this embodiment, a plurality of rear supporting devices 8 are detachably connected along the axial direction of the main beam 41 and can be connected by bolts or pins; a crawler walking module 5 is provided at the bottom end of the plurality of rear supporting devices 8. The plurality of crawler walking modules 5 can move and exit synchronously in the tunnel, and can quickly complete the docking between the main excavation module and the plurality of rear supporting devices 8, and the docking method is simple, practical and efficient. For working conditions that require the matching of a plurality of rear supporting devices 8, the crawler-type rock tunnel boring machine of the present invention has a short transfer time and a high transfer efficiency. Of course, from the perspective of saving equipment costs, it is also possible to transport a plurality of rear supporting devices 8 with only one crawler walking module 5, and the crawler walking module 5 can be replaced with the corresponding model of the sliding bearing 53 that cooperates with the plurality of second slots, and the crawler walking module 5 has strong flexibility and compatibility.

[0070] In addition, the present invention also provides a method for transferring a crawler-type rock tunnel boring machine. The method for transferring a crawler-type rock tunnel boring machine is implemented based on the above-mentioned crawler-type rock tunnel boring machine. The method for transferring comprises:

[0071] S1, cutterhead 1, shield 2, main drive 3 and main beam support propulsion mechanism 4 are assembled outside the tunnel to form a main engine excavation module;

[0072] S2, the lifting mechanism 52 drives the sliding bearing 53 to rise and fall to the height corresponding to the first slot 42; the crawler chassis 51 moves axially along the main beam 41, and the sliding bearing 53 is clamped into the preset position in the first slot 42; the crawler chassis 51 and the main beam support propulsion mechanism 4 are fixed by the limiter; the lifting mechanism 52 lifts the main beam support propulsion mechanism 4, and the crawler walking module 5 transports the main engine excavation module to the tunnel face;

[0073] The main beam support propulsion mechanism 4 and the crawler walking module 5 are quickly disassembled and assembled by the method of "one lifting, two moving and three fixing". The main beam support propulsion mechanism 4 is then lifted by the lifting mechanism 52. The lifting height is reasonably set according to the working conditions of the tunnel bottom slag, and the main engine excavation module can be transferred.

[0074] S3, remove the limiter, crawler walking module 5 withdraws from the main engine excavation module, and the main engine excavation module excavates normally. The crawler walking module 5 and the main engine excavation module transfer in the tunnel, and the crawler walking module 5 and the rear supporting device 8 transfer in the tunnel are similar, and will not be repeated.

[0075] The crawler walking module 5 can be completely withdrawn from the tunnel to ensure the passage space inside the tunnel. It can also stay in the parking area inside the tunnel, which is suitable for the working condition where the crawler walking module 5 needs to be used frequently.

[0076] Furthermore, when the main beam support propulsion mechanism 4 fails, the main beam support propulsion mechanism 4 is connected to the crawler walking module 5, and the crawler walking module 5 is used as the auxiliary power of the main beam support propulsion mechanism 4. When encountering machine jamming or other adverse geological conditions, and the position of the support shoe 44 is loose or partially collapsed, resulting in the failure of the main beam support propulsion mechanism 4 or insufficient propulsion reaction force, the crawler walking module 5 can also be used as an auxiliary power to assist the crawler walking module 5 to get out of trouble; or the crawler walking module 5 can be used to temporarily provide excavation thrust for the cutter head 1. Therefore, the crawler walking module 5 can not only be used as a transfer transportation tool, but also as a tool for getting out of trouble or assisting excavation, which improves the error prevention or remedial performance of the crawler rock tunnel boring machine.

[0077] It should be understood that the above description of the specific embodiments of the present invention is only for illustrating the technical route and features of the present invention, and its purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly, but the present invention is not limited to the above specific implementation methods. Any changes or modifications made within the scope of the claims of the present invention should be included in the protection scope of the present invention.

Claims

1. A crawler rock tunnel boring machine, characterized in that: The crawler-type rock tunnel boring machine comprises a cutterhead (1), a shield (2), a main drive (3), a main beam support propulsion mechanism (4) and a crawler walking module (5); The cutter disc (1) is mounted on one side of the shield (2); the main drive (3) is mounted on the other side of the shield (2); the main drive (3) is rotatably connected to the cutter disc (1) so as to be able to drive the cutter disc (1) to rotate; the main beam supporting propulsion mechanism (4) is connected to the main drive (3) so as to be able to drive the cutter disc (1) to move axially along the main beam (41) of the main beam supporting propulsion mechanism (4); The crawler walking module (5) comprises a crawler chassis (51), a lifting mechanism (52), a sliding bearing (53) and a limiting member; the lifting mechanism (52) is arranged on the crawler chassis (51); the lifting mechanism (52) is connected to the sliding bearing (53); a first clamping groove (42) is provided at the bottom end of the main beam supporting and propulsion mechanism (4), and the sliding bearing (53) is axially slidably connected to the first clamping groove (42) along the main beam (41); when the crawler walking module (5) moves to a preset position below the main beam supporting and propulsion mechanism (4), the two are fixed by the limiting member; the lifting mechanism (52) can drive the sliding bearing (53) to move in the vertical direction.

2. The crawler rock tunnel boring machine according to claim 1, characterized in that: The crawler walking module (5) further comprises a crawler deviation adjustment mechanism (54) and a pair of crawlers; The crawler track deviation adjustment mechanism (54) is installed at the bottom of the crawler track chassis (51); The pair of crawlers are connected to the two ends of the crawler deviation adjustment mechanism (54) in a one-to-one correspondence, so as to be able to adjust the angle α between the pair of crawlers.

3. The crawler rock tunnel boring machine according to claim 2, characterized in that: The crawler walking module (5) further comprises a trapezoidal hinge plate (55); The trapezoidal hinge plate (55) is mounted on the bottom end of the crawler chassis (51); the crawler deviation adjustment mechanism (54) is arranged above the trapezoidal hinge plate (55); A V-shaped ear plate (56) is arranged on the side of the crawler track; two free ends of the V-shaped ear plate (56) are correspondingly hinged to the crawler track deviation adjustment mechanism (54) and the trapezoidal hinge plate (55).

4. The crawler rock tunnel boring machine according to claim 2, characterized in that: The crawler walking module (5) further comprises a slag blocking plate (57); The slag blocking plate (57) is connected to the crawler chassis (51), and the slag blocking plate (57) is arranged between the shield (2) and the crawler.

5. The crawler rock tunnel boring machine according to any one of claims 1 to 4, characterized in that: The main beam supporting and propulsion mechanism (4) is provided with a rear support (43) and a pair of support shoes (44); The rear support (43) can be lifted and lowered in the vertical direction; the pair of support shoes (44) can correspondingly abut against two side walls of the tunnel; and the crawler walking module (5) can pass through the inner side of the rear support (43).

6. The crawler rock tunnel boring machine according to any one of claims 1 to 4, characterized in that: The crawler-type rock tunnel boring machine further comprises a slag conveyor (6); The slag conveyor (6) is connected to the shield (2); a slag discharge channel is installed on the crawler chassis (51); the slag conveyor (6) extends from the inside of the cutter disc (1) into the slag discharge channel.

7. The crawler rock tunnel boring machine according to any one of claims 1 to 4, characterized in that: The crawler-type rock tunnel boring machine also includes a rear supporting device (8); The main beam supporting propulsion mechanism (4) is detachably connected to the rear supporting device (8); The bottom end of the rear supporting device (8) is detachably provided with the crawler walking module (5).

8. The crawler rock tunnel boring machine according to claim 7, characterized in that: The plurality of rear matching devices (8) are detachably connected along the axial direction of the main beam (41); The bottom ends of the plurality of rear supporting devices (8) are each provided with the crawler walking module (5).

9. A method for transferring a crawler rock tunnel boring machine, characterized in that: The transfer method of the crawler rock tunnel boring machine is implemented based on the crawler rock tunnel boring machine according to any one of claims 1 to 8, and the transfer method comprises: S1, the cutterhead (1), the shield (2), the main drive (3) and the main beam support propulsion mechanism (4) are assembled outside the tunnel to form a main engine excavation module; S2, the lifting mechanism (52) drives the sliding bearing (53) to be lifted to a height corresponding to the first slot (42); the crawler chassis (51) moves axially along the main beam (41) to snap the sliding bearing (53) into a preset position in the first slot (42); the crawler chassis (51) and the main beam support propulsion mechanism (4) are fixed via the limiter; the lifting mechanism (52) lifts the main beam support propulsion mechanism (4), and the crawler walking module (5) transports the main engine excavation module to the tunnel face; S3, the limiting member is removed, the crawler walking module (5) is withdrawn from below the main engine excavation module, and the main engine excavation module excavates normally.

10. The method for transferring a crawler rock tunnel boring machine according to claim 9, characterized in that: When the main beam supporting propulsion mechanism (4) fails, the main beam supporting propulsion mechanism (4) is connected to the crawler walking module (5), and the crawler walking module (5) is used as an auxiliary power for the main beam supporting propulsion mechanism (4).

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