A slurry shield pipe device and a shield machine

Abstract

The utility model relates to a kind of slurry shield pipeline device, comprising: slurry pipe clamping device, for clamping and pushing special slurry pipe to and fro movement along the direction of excavation;Slurry pipe storage device, slurry pipe storage device has storage site and working position, slurry pipe storage device can rotate around its own central axis, switch storage site and working position position, slurry pipe storage device is aligned along the direction of excavation with slurry pipe clamping device.The utility model also relates to a kind of shield machine, including slurry shield pipeline device, slurry shield pipeline device and shield machine, can realize the extension of slurry pipe and can store slurry pipe, in the process of slurry pipe extension, slurry pipe distribution link is saved, and in the process of excavation, directly use new slurry pipe extension and external slurry pipe connection, avoid repeatedly pipe, process of connecting, slurry pipe whole storage, extension, pipe replacement process are mechanized operation, and work efficiency is high.

Description

Technical Field

[0001] This utility model belongs to the field of tunnel construction equipment, specifically relating to a slurry shield tunneling pipeline device and a shield machine. Background Technology

[0002] During tunnel excavation and construction, soft soil strata are often encountered, such as silt, silty clay, sand, or water-rich strata. In such cases, slurry shield tunneling machines can be used to stabilize the excavation face by pressurizing slurry or mud. Its core function is to form a tunnel structure efficiently and safely through integrated operations such as balancing the tunnel face with mud, continuous tunneling, and muck transportation.

[0003] In slurry shield tunneling, slurry needs to be transported to the cutterhead cutting face through the slurry inlet pipe to form a slurry sleeve to stabilize the tunnel face, cool the cutters, and carry away the excavated soil. Then, the slurry containing excavated soil is transported to the ground treatment system through the slurry outlet pipe. As the tunnel boring machine continues to advance (usually the distance of a single excavation is matched with the length of a single slurry pipe), the slurry inlet and outlet pipes need to be extended every certain distance to ensure that the slurry can be continuously transported to the front of the cutterhead and carry away the excavated soil. This continuous extension of the slurry pipeline maintains the continuity of the slurry circuit, thereby stabilizing the excavation face and safely discharging the excavated soil.

[0004] However, the common method for extending slurry pipes in existing technologies is as follows: a section of slurry pipe is connected to an external slurry pipe. During tunneling, the slurry pipe extends to compensate for the tunneling distance. After tunneling a certain distance, the connection between the slurry pipe and the external slurry pipe is disconnected and retracted. A new section of slurry pipe is then added between the slurry pipe and the external slurry pipe, and then tunneling continues to begin the next extension process. This extension method requires repeated pipe disassembly and reassembly, which is not only labor-intensive but also extremely inefficient. In addition, the new slurry pipe needs to be transported from a storage box located on the other side of the trolley. Due to the space constraints of the trolley structure, the slurry pipe transportation process carries significant safety risks and requires a high level of skill from the operators. Even a slight mistake during transportation can easily lead to collisions, resulting in property damage or even personal injury. Utility Model Content

[0005] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a slurry shield tunneling pipeline device and shield machine, which can extend and store slurry pipes. During the extension of slurry pipes, the slurry pipe transportation link is eliminated, and new slurry pipes can be directly extended and connected to external slurry pipes during the tunneling process, avoiding repeated pipe disassembly and connection. The entire process of slurry pipe storage, extension, and replacement is mechanized, resulting in high work efficiency.

[0006] The technical solution of this utility model is as follows: A slurry shield tunneling pipeline device includes: a slurry pipe clamping device for clamping and pushing a dedicated slurry pipe to move back and forth along the tunneling direction; and a slurry pipe storage device having a storage position and a working position, wherein the slurry pipe storage device can rotate around its own central axis to switch the positions of the storage position and the working position, and the slurry pipe storage device is aligned with the slurry pipe clamping device along the tunneling direction.

[0007] Preferably, it includes: a front shell, wherein the front shell has a mud pipe inlet channel and a mud pipe outlet channel inside, the mud pipe inlet channel being connected to the shield tunneling machine's mud pipe inlet circuit, and the mud pipe outlet channel being connected to the shield tunneling machine's mud pipe outlet circuit; a storage tank, wherein the storage tank has at least four storage cylinders inside; and a rear shell, wherein the rear shell has an inlet pipe extension channel, an outlet pipe extension channel, and a mud pipe storage channel inside; the mud pipe inlet channel, the mud pipe outlet channel, the storage cylinder, the inlet pipe extension channel, and the outlet pipe... The extension channel and the mud pipe storage channel are concentrically distributed. When the slurry shield tunneling pipeline device is switched to the working position, the two storage tubes are in operation. One storage tube is connected to the mud pipe inlet channel, and the other end of the storage tube is connected to the inlet pipe extension channel. The other storage tube is connected to the mud pipe outlet channel, and the other end of the storage tube is connected to the outlet pipe extension channel. When the slurry shield tunneling pipeline device is switched to the storage position, the storage tube is connected to the mud pipe storage channel.

[0008] Preferably, the bottom of the front housing is provided with a first mounting seat, and the bottom of the rear housing is provided with a second mounting seat.

[0009] Preferably, a rotating mechanism is included, which is located outside the storage tube nest and is used to drive the storage tube nest to rotate around its own geometric central axis.

[0010] Preferably, the slurry shield tunneling pipeline device includes: a slurry inlet pipe pushing cylinder, which pushes a dedicated slurry pipe in the storage cylinder into the slurry inlet pipe extension channel; and a slurry outlet pipe pushing cylinder, which pushes a dedicated slurry pipe in the storage cylinder into the slurry outlet pipe extension channel.

[0011] Preferably, both the outlet of the slurry inlet pipe extension channel and the outlet of the slurry outlet pipe extension channel are provided with telescopic sleeve structures, which can be used to change the length of the slurry inlet pipe extension channel and the slurry outlet pipe extension channel.

[0012] Preferably, the mud pipe clamping device includes: a storage pipe roller bracket, which is located at the entrance of the mud pipe storage channel, and storage pipe rollers are arranged along the conveying axis on the storage pipe roller bracket; a slurry inlet pipe roller bracket, which is located at the entrance of the slurry inlet pipe extension channel, and slurry inlet pipe rollers are arranged along the conveying axis on the slurry inlet pipe roller bracket; and a slurry outlet pipe roller bracket, which is located at the entrance of the slurry outlet pipe extension channel, and slurry outlet pipe rollers are arranged along the conveying axis on the slurry outlet pipe roller bracket.

[0013] Preferably, the mud pipe clamping device includes a clamping mechanism, which includes: a mud outlet pipe clamp for clamping the mud outlet pipe, comprising a first clamping block and a second clamping block, the first clamping block cooperating with the second clamping block; a mud inlet pipe clamp for clamping the mud inlet pipe, comprising a third clamping block and a fourth clamping block, the third clamping block cooperating with the fourth clamping block; a first lead screw, comprising two first lead screws, one of which is adapted to the first clamping block and the second clamping block, and the other of which is adapted to the third clamping block and the fourth clamping block; and a lead screw nut, the first lead screw cooperating with the lead screw nut.

[0014] Preferably, the mud pipe clamping device includes a traveling trolley, the clamping mechanism being mounted on the traveling trolley; a traveling gear, the traveling gear being mounted on the bottom of the traveling trolley; a rack and pinion track, the rack and pinion track meshing with the traveling gear; a traveling drive device, the traveling drive device being used to drive the traveling gear to rotate; and a storage and pushing cylinder, the storage and pushing cylinder being mounted on the traveling trolley, being used to push the special mud pipe into the storage cylinder.

[0015] A tunnel boring machine includes the aforementioned slurry shield tunneling pipeline device.

[0016] This utility model provides a slurry shield tunneling pipeline device, including a slurry pipe clamping device for clamping and pushing a special slurry pipe to move back and forth along the tunneling direction; and a slurry pipe storage device, which has a storage position and a working position. The slurry pipe storage device can rotate around its own central axis to switch between the storage position and the working position. The slurry pipe storage device is aligned with the slurry pipe clamping device along the tunneling direction. The mud pipe storage device and the mud pipe clamping device are aligned along the tunneling direction. This layout is the basis for their functional synergy. When the mud pipe storage device rotates to the storage position, its storage inlet and the pushing path of the mud pipe clamping device are precisely aligned along the tunneling direction. The clamping device can directly push the special mud pipe into the mud pipe storage device along the tunneling direction without adjusting the pipeline delivery angle, thus avoiding pipeline collision or jamming. When the mud pipe storage device rotates to the working position, its extension outlet is also aligned along the tunneling direction with the clamping path of the mud pipe clamping device. The mud pipe extending from the mud pipe storage device can directly enter the clamping range of the mud pipe clamping device. The mud pipe clamping device can drive the pipeline to move along the tunneling direction or in the opposite direction to realize pipeline extension and position adjustment. This coordinated approach, involving alignment along the tunneling direction, rotational switching, and clamping and pushing movement, ensures that the dedicated mud pipe moves along the preset direction throughout the entire storage-extension process without lateral deviation. This simplifies the pipeline transfer process and avoids operational interruptions caused by component misalignment, providing structural assurance for the continuous and stable mud circuit during slurry shield tunneling. Therefore, the slurry shield tunneling pipeline device and shield machine provided in this application can both extend and store the mud pipe. During the extension process, the mud pipe transportation step is eliminated, and new mud pipes can be directly extended and connected to external mud pipes during tunneling, avoiding repeated pipe disassembly and reassembly. The entire process of mud pipe storage, extension, and replacement is mechanized, resulting in high work efficiency. Attached Figure Description

[0017] Figure 1 A schematic diagram of the slurry shield tunneling pipeline device provided by this utility model; Figure 2 A front view of the mud pipe storage device provided by this utility model; Figure 3 Top view of the mud pipe storage device provided by this utility model; Figure 4 Left view of the mud pipe storage device provided by this utility model; Figure 5 Right view of the mud pipe storage device provided by this utility model; Figure 6 Left view of the mud pipe clamping device provided by this utility model; Figure 7 This is a front view of the mud pipe clamping device provided by this utility model; Figure 8 Right view of the mud pipe clamping device provided by this utility model; Figure 9 A schematic diagram of the special mud pipe provided by this utility model.

[0018] Explanation of reference numerals in the attached figures 1. Mud pipe storage device; 101. Front shell; 102. Storage tube nest; 103. Rear shell; 104. Inlet pipe pushing cylinder; 105. Outlet pipe pushing cylinder; 106. Rotary drive device; 107. Inlet pipe extension sleeve; 108. Outlet pipe extension sleeve; 109. Sleeve telescopic cylinder; 110. Conveying roller bracket; 111. Conveying roller; 112. Tie rod; 113. First nut; 114. Rotating mechanism; 115. Mud pipe inlet channel; 116. Mud pipe outlet channel; 117. Inlet pipe extension channel; 118. Mud pipe storage channel; 11 9. Slurry pipe extension channel; 2. Slurry pipe clamping device; 201. Rack and pinion track; 202. Traveling gear; 203. Traveling trolley; 204. Slurry inlet pipe clamp; 205. Slurry outlet pipe clamp; 206. First lead screw; 207. Lead screw nut; 208. Slurry inlet pipe roller bracket; 209. Slurry inlet pipe roller; 210. Slurry outlet pipe roller bracket; 211. Slurry outlet pipe roller; 212. Storage pipe roller bracket; 213. Storage pipe roller; 214. Pushing cylinder; 215. Traveling drive device; 216. Lead screw drive gear; 217. Rack and pinion cylinder; 3. Special slurry pipe. Detailed Implementation

[0019] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of this application.

[0020] In the description of this utility model, it should be understood that the terms "upper" and "lower" indicate orientation or positional relationship only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements 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 of this utility model.

[0021] Figures 1 to 9As shown, this utility model provides a slurry shield tunneling pipeline device, including a slurry pipe clamping device 2 for clamping and pushing a special slurry pipe 3 to move back and forth along the tunneling direction; a slurry pipe storage device 1, which has a storage position and a working position. The slurry pipe storage device can rotate around its own central axis to switch between the storage position and the working position. The slurry pipe storage device 1 and the slurry pipe clamping device 2 are aligned along the tunneling direction.

[0022] The core function of this slurry shield tunneling pipeline device relies on the precise adaptation and coordinated action of the slurry pipe clamping device 2 and the slurry pipe storage device 1. The specific structural positioning, functional division of labor and cooperation logic are as follows: The function of the slurry pipe clamping device 2 focuses on the clamping, fixing and directional pushing of the dedicated slurry pipe 3. It can drive the dedicated slurry pipe 3 to move back and forth along the tunneling direction of the shield machine. When the dedicated slurry pipe 3 needs to be replenished to the slurry pipe storage device 1, the device can clamp the dedicated slurry pipe 3 and push it towards the slurry pipe storage device 1 to ensure that the pipeline accurately enters the slurry pipe storage device 1. When the dedicated slurry pipe 3 needs to be extended with the shield tunneling, the slurry pipe clamping device 2 can clamp the pipeline that has extended out of the slurry pipe storage device 1 and move it smoothly in the opposite direction of tunneling to avoid pipeline deviation or sagging. At the same time, after the extension is completed, it maintains the clamping state to maintain pipeline stability. In addition, the mud pipe storage device 1 has two core position states: a storage position and a working position. It can rotate around its central axis, and the two positions can be flexibly switched through the rotation. When in the storage position, the mud pipe storage device 1 is aligned with the dedicated mud pipe 3 pushed by the mud pipe clamping device 2, receiving and storing new pipelines. When switched to the working position, the mud pipe storage device 1 is aligned with the shield machine's mud circuit and external extension path, and the stored dedicated mud pipe 3 is transported to the extension channel to provide pipeline support for the extension of the mud circuit during the tunneling process. At the same time, the rotation of the mud pipe storage device 1 around its central axis is precise and controllable, ensuring that the pipeline docking is without deviation when switching positions.

[0023] As can be seen, the mud pipe storage device 1 and the mud pipe clamping device 2 are aligned along the tunneling direction. This layout is the basis for their functional synergy. When the mud pipe storage device 1 rotates to the storage position, its storage inlet and the pushing path of the mud pipe clamping device 2 are precisely aligned along the tunneling direction. The clamping device can directly push the special mud pipe 3 into the mud pipe storage device 1 along the tunneling direction without adjusting the pipeline delivery angle, thus avoiding pipeline collision or jamming. When the mud pipe storage device 1 rotates to the working position, its extension outlet is also aligned along the tunneling direction with the clamping path of the mud pipe clamping device 2. The mud pipe extending from the mud pipe storage device 1 can directly enter the clamping range of the mud pipe clamping device 2. The mud pipe clamping device 2 can drive the pipeline to move along the tunneling direction or in the opposite direction to realize pipeline extension and position adjustment. This coordinated mode of alignment and rotation along the tunneling direction, as well as clamping and pushing movement, ensures that the dedicated mud pipe 3 always moves in the preset direction without lateral deviation throughout the entire storage-extension process. This simplifies the pipeline transfer process and avoids work interruptions caused by component misalignment, providing structural protection for the continuous and stable mud circuit during the tunneling process of the slurry shield machine.

[0024] In the embodiments provided by this utility model, the slurry shield tunneling pipeline device includes a front shell 101, inside which are provided a slurry pipe inlet channel 115 and a slurry pipe outlet channel 116. The slurry pipe inlet channel 115 is connected to the shield tunneling machine's slurry inlet circuit, and the slurry pipe outlet channel 116 is connected to the shield tunneling machine's slurry outlet circuit; a storage tube nest 102, inside which are provided at least four storage tube cylinders; and a rear shell 103, inside which are provided a slurry pipe extension channel 117, a slurry pipe extension channel 119, and a slurry pipe storage channel 118; the slurry pipe inlet channel 115 and the slurry pipe outlet channel 116 are connected to the shield tunneling machine's slurry outlet circuit. Channel 116, storage cylinder, slurry inlet pipe extension channel 117, slurry outlet pipe extension channel 119, and mud pipe storage channel 118 are arranged in a concentric circle. When the slurry shield tunneling pipeline device is switched to the working position, two storage cylinders are in working condition. One storage cylinder is connected to the mud pipe inlet channel 115, and the other end of the storage cylinder is connected to the slurry inlet pipe extension channel 117. The other storage cylinder is connected to the mud pipe outlet channel 116, and the other end of the storage cylinder is connected to the slurry outlet pipe extension channel 119. When the slurry shield tunneling pipeline device is switched to the storage position, the storage cylinder is connected to the mud pipe storage channel 118.

[0025] The core functionality of this slurry shield tunneling pipeline system relies on the concentric circular distribution of the internal channels and storage tubes of the front shell 101, storage tube nest 102, and rear shell 103, as well as the precise switching between the working position and the storage position based on this layout. The specific structural association and switching logic are as follows: First, the slurry inlet channel 115 and slurry outlet channel 116 inside the front shell 101 are distributed in a circle with the central axis of the front shell 101 as the center; the at least four storage tubes inside the storage tube nest 102 are arranged in a circle with the storage tube nest 103 as the center. The 02 housing has its own central axis as the center, and the slurry inlet pipe extension channel 117, slurry outlet pipe extension channel 119, and slurry storage pipe channel 118 inside the rear housing 103 are also distributed in a circle with the rear housing 103's own central axis as the center. All of these channels are concentric with the distribution circle of the storage tube, and the diameters of the distribution circles are completely consistent. This ensures that when the storage tube 102 rotates around its own central axis, it can accurately align with the corresponding channels of the front housing 101 and the rear housing 103 without radial deviation or misalignment. Simultaneously, the slurry inlet pipe channel 115 of the front housing 101 is directly connected to the slurry inlet circuit of the tunnel boring machine (TBM), and the slurry outlet pipe channel 116 is directly connected to the slurry outlet circuit of the TBM. This provides a basic pathway for the flow of slurry within the device—from the TBM to the front housing 101, the storage tube 102, and the rear housing 103, achieving the connection between the slurry circuit and the external extension pipelines.

[0026] When the slurry shield tunneling pipeline device switches to the working position, the storage tank 102 rotates around its central axis, bringing the two storage tubes into working condition and forming a precise connection with the channels of the front shell 101 and the rear shell 103. Specifically, one end of one storage tube is fully connected to the slurry inlet channel 115 of the front shell 101, and the other end is fully connected to the slurry inlet extension channel 117 of the rear shell 103, forming a continuous path from the slurry inlet channel 115 to the storage tube and the slurry inlet extension channel 117. Slurry from the shield machine's slurry inlet circuit can enter the storage tube through the slurry inlet channel 115. The slurry is then transported to the external extension pipeline via the slurry inlet pipe extension channel 117, ultimately reaching the cutterhead cutting surface. One end of the other storage pipe is fully connected to the slurry outlet channel 116 of the front shell 101, and the other end is fully connected to the slurry outlet pipe extension channel 119 of the rear shell 103, forming a continuous passage of slurry outlet extension channel—storage pipe—slurry outlet channel 116. The slurry containing slag and soil carried by the cutterhead cutting surface can enter the slurry outlet pipe extension channel 119 via the external extension pipeline, and then flow into the shield machine's slurry outlet circuit through the storage pipe and slurry outlet channel 116, ultimately being transported to the ground treatment system. This layout of dual storage pipes operating synchronously ensures that the slurry inlet and outlet circuits operate independently and simultaneously, meeting the need for continuous slurry transportation during slurry shield machine tunneling.

[0027] When the slurry shield tunneling pipeline device is switched to the storage position, the storage tube nest 102 rotates around its own central axis again, so that at least one empty storage tube is precisely aligned and connected with the mud pipe storage channel 118 of the rear shell 103, forming a storage passage of mud pipe storage channel 118-storage tube. The special mud pipe 3 to be replenished can directly enter the storage tube through the mud pipe storage channel 118 to complete the storage, without adjusting the pipeline delivery direction or disassembling the device structure. Since the storage tube nest 102 is equipped with at least 4 storage tubes, when 2 storage tubes are in the working position, the remaining storage tubes can be rotated to the storage position to complete the replenishment in sequence, ensuring that the device always has enough special mud pipes 3 in reserve, providing reserve support for subsequent working position switching and pipeline extension. Therefore, the concentric circumferential distribution design of the front shell 101, the storage tube nest 102, and the rear shell 103, as well as the working position-storage position switching logic based on this design, not only ensures the smooth connection of the mud circuit during operation, but also realizes the convenient replenishment of the dedicated mud pipe 3 during storage, laying a structural foundation for the continuous extension of the mud pipeline during the tunneling process of the slurry shield machine.

[0028] It should be noted that the structure of the dedicated mud pipe 3 is designed around three core requirements: sealing connection, precise fit, and anti-detachment fixation. Key features are as follows: 1. Two-end interface structure: one end has a convex spherical surface and the other a concave spherical surface. The radii of the convex and concave spherical surfaces are completely consistent, enabling tight coupling. This design compensates for minor coaxiality deviations during pipe connection, preventing mud leakage due to misalignment. 2. Near the convex and concave spherical surfaces, each end has an annular clamp groove. The groove size precisely matches the clamp of the dedicated mud pipe 3, used to install the clamp to strengthen the sealing and fixation at the joint, preventing the interface from detaching or leaking under high-pressure mud impact. 3. Adaptability structure: the outer diameter of the pipe body precisely matches the inner diameter of the storage cylinder of the storage tube 102, the inner diameters of various channels in the front shell 101 and the rear shell 103, and the inner diameter of the extension sleeve. This allows for smooth entry into the storage cylinder for storage and stable mud transport within the channels, without excessive gaps causing shaking or leakage.

[0029] In the embodiments provided by this utility model, a first mounting seat is provided at the bottom of the front housing 101, and a second mounting seat is provided at the bottom of the rear housing 103. The front housing 101 and the rear housing 103 are stably fixed by the mounting seats at their bottoms, providing a structural foundation for the overall operation of the slurry shield tunneling pipeline device. The first mounting seat at the bottom of the front housing 101 and the second mounting seat at the bottom of the rear housing 103 are the core components for connecting the two to the slurry shield tunneling machine trailer. The front housing 101 and the rear housing 103 can be firmly fixed to the preset position on the trailer by bolts and other fasteners. This bottom mounting design ensures that the front shell 101 and the rear shell 103 remain stable in the tunneling vibration environment of the tunnel boring machine, avoiding relative displacement due to vibration. This ensures that the mud pipe inlet channel 115 and mud pipe outlet channel 116 of the front shell 101, and the mud pipe extension channel 117, mud pipe extension channel 119, and mud pipe storage channel 118 of the rear shell 103 always maintain a precise alignment with concentric circles. This provides reliable support for the smooth connection of the storage tube and each channel, and for the stable switching of the mud-water shield tunneling pipeline device between the working position and the storage position.

[0030] In the embodiments provided by this utility model, the slurry shield tunneling pipeline device includes a rotating mechanism 114, which is located outside the storage tank 102 and is used to drive the storage tank 102 to rotate around its own geometric central axis. The rotating mechanism 114 is the core component for driving the storage tank 102 to achieve position switching, and its installation and functional design are directly adapted to the operational requirements of the slurry shield tunneling pipeline device. The rotating mechanism 114 is specifically located on the outside of the storage tube nest 102, forming a transmission cooperation with the storage tube nest 102. Its core function is to drive the storage tube nest 102 to rotate stably around its own geometric central axis. Through this rotation, the storage tube nest 102 can drive the internal storage tube to switch between preset positions. When the rotating mechanism 114 drives the storage tube nest 102 to rotate to the corresponding angle, the storage tube can accurately align with the mud pipe inlet channel 115 and mud pipe outlet channel 116 of the front shell 101 and the mud pipe inlet extension channel 117 and mud pipe outlet extension channel 119 of the rear shell 103, so that the device switches to the working position. Continuing to rotate can align the empty storage tube with the mud pipe storage channel 118 of the rear shell 103, realize the storage position switching, provide power support for the extension and replenishment of the pipeline, and ensure the smooth connection of the functions of the slurry shield tunneling pipeline device.

[0031] In the embodiments provided by this utility model, the slurry shield tunneling pipeline device includes: a slurry inlet pipe pushing cylinder 104, which pushes the dedicated slurry pipe 3 in the storage cylinder into the slurry inlet pipe extension channel 117; and a slurry outlet pipe pushing cylinder 105, which pushes the dedicated slurry pipe 3 in the storage cylinder into the slurry outlet pipe extension channel 119. The slurry inlet pipe pushing cylinder 104 and the slurry outlet pipe pushing cylinder 105 are the core power components in the slurry shield tunneling pipeline device that enable precise connection of the dedicated slurry pipe 3. The two have clear division of labor and independent operation, jointly ensuring the smooth operation of the slurry circuit. The core function of the slurry inlet pipe pushing cylinder 104 is to directionally push the special mud pipe 3. When the storage cylinder is switched to the slurry inlet working position and aligned with the mud pipe inlet channel 115 of the front shell 101 and the slurry inlet pipe extension channel 117 of the rear shell 103, the cylinder is started and outputs thrust to smoothly push the special mud pipe 3 in the storage cylinder into the slurry inlet pipe extension channel 117 along the axial direction, completing the docking of the slurry inlet pipe and opening up the channel for mud to be transported from the shield slurry inlet circuit to the cutterhead cutting surface. The slurry pipe pushing cylinder 105 serves the slurry discharge circuit. When another storage cylinder is switched to the slurry discharge working position and precisely aligned with the slurry pipe discharge channel 116 of the front shell 101 and the slurry pipe extension channel 119 of the rear shell 103, the cylinder is started synchronously or independently to push the special slurry pipe 3 in the storage cylinder into the slurry pipe extension channel 119, thereby achieving effective connection of the slurry discharge side pipeline and ensuring that the slag-containing slurry carrying the slag can smoothly flow into the shield tunnel slurry discharge circuit.

[0032] In the embodiments provided by this utility model, both the outlet of the slurry inlet pipe extension channel 117 and the outlet of the slurry outlet pipe extension channel 119 are equipped with telescopic sleeve structures. These telescopic sleeve structures allow for the alteration of the lengths of the slurry inlet pipe extension channel 117 and the slurry outlet pipe extension channel 119. The core function of these telescopic sleeve structures is to flexibly change the effective length of the two extension channels through the telescopic movement of the sleeves, adapting to different needs for pipe connection and extension. When the dedicated mud pipe 3 needs to be extended, the telescopic sleeve extends outward, lengthening the corresponding slurry inlet pipe extension channel 117 and the slurry outlet pipe extension channel 119. This ensures that the dedicated mud pipe 3 remains within the channel protection range during extension, preventing the pipe from being exposed and causing collisions or friction. After the dedicated mud pipe 3 is pushed into the extension channel and completed the connection, the telescopic sleeve retracts inward, shortening the extension channel length and exposing the pipe connection point. This facilitates clamp installation and other fixing operations, ensuring the sealing and stability of the connection point. This retractable structural design allows the length of the two extension channels to be dynamically adjusted according to the operation stage, providing protection for pipeline extension and creating operating space for docking and fixing, ensuring the smoothness and reliability of mud circuit connection.

[0033] In the embodiments provided by this utility model, the mud pipe clamping device 2 includes: a storage pipe roller bracket 212, which is located at the entrance of the mud pipe storage channel 118, and storage pipe rollers 213 are arranged on the storage pipe roller bracket 212 along the conveying axis; an inlet pipe roller bracket 208, which is located at the entrance of the inlet pipe extension channel 117, and inlet pipe rollers 209 are arranged on the inlet pipe roller bracket 208 along the conveying axis; and an outlet pipe roller bracket 210, which is located at the entrance of the outlet pipe extension channel 119, and outlet pipe rollers 211 are arranged on the outlet pipe roller bracket 210 along the conveying axis.

[0034] The roller bracket and rollers of the mud pipe clamping device 2 provide a precise fit for the conveying and support of the dedicated mud pipe 3. Through the positioning of the bracket and the bearing structure of the rollers, the smooth transmission of the pipeline at the entrance of different channels is ensured. Specifically, the storage pipe roller bracket 212 is specially set at the entrance of the mud pipe storage channel 118. Storage pipe rollers 213 are neatly arranged on the storage pipe roller bracket 212 along the conveying axis of the dedicated mud pipe 3. When the dedicated mud pipe 3 is conveyed into the storage cylinder, the storage pipe rollers 213 provide stable support for the pipeline and reduce frictional resistance during the conveying process. The inlet pipe roller bracket 208 is correspondingly set at the entrance of the inlet pipe extension channel 117. The inlet pipe rollers 209 arranged along the inlet conveying axis receive and support the pipeline during the process of pushing the dedicated mud pipe 3 from the storage cylinder to the inlet pipe extension channel 117, ensuring that the pipeline smoothly enters the extension channel along the axial direction and avoiding deviation or jamming. The discharge pipe roller bracket 210 is installed at the entrance of the discharge pipe extension channel 119. The discharge pipe rollers 211 arranged along the discharge side conveying axis on the bracket provide support for the dedicated mud pipe 3 pushed to the discharge pipe extension channel 119, ensuring the smoothness and stability of the discharge side pipeline conveying. The three types of roller brackets are precisely laid out for different channel entrances. The design of the rollers arranged along the conveying axis is perfectly adapted to the pipeline conveying path. It reduces frictional damage to the pipeline conveying through rolling contact and restricts the lateral displacement of the pipeline, providing a reliable guarantee for the storage and extension connection of the dedicated mud pipe 3.

[0035] In the embodiments provided by this utility model, the mud pipe clamping device 2 includes a clamping mechanism, which includes: a mud outlet pipe clamp 205, which is used to clamp the mud outlet pipe and includes a first clamping block and a second clamping block, the first clamping block and the second clamping block cooperating with each other; a mud inlet pipe clamp 204, which is used to clamp the mud inlet pipe and includes a third clamping block and a fourth clamping block, the third clamping block and the fourth clamping block cooperating with each other; a first lead screw 206, there are two first lead screws 206, one of which is adapted to the first clamping block and the second clamping block, and the other of which is adapted to the third clamping block and the fourth clamping block; and a lead screw nut 207, the first lead screw 206 and the lead screw nut 207 cooperating with each other.

[0036] The clamping mechanism, through a lead screw-nut transmission and cooperation with each clamping block, achieves precise clamping and release of the slurry inlet and outlet pipes. The core mechanical operation logic is as follows: Two first lead screws 206 form threaded pairs with corresponding lead screw nuts 207. The lead screw nuts are fixed to the first, second, third, and fourth clamping blocks. The lead screws and clamping blocks form a relatively movable cooperative relationship. The core of the threaded transmission is to convert the rotational motion of the lead screws into the linear motion of the clamping blocks. Through the lead design of the thread, the movement distance of the clamping blocks is precisely controlled. Clamping action: When the first lead screw 206 rotates clockwise, the threaded pair generates axial force, driving the two clamping blocks adapted to the same lead screw (such as the first and second clamping blocks, or the third and fourth clamping blocks) to approach each other along the lead screw axis. The two clamping blocks form a closed clamping space, while their sides adhere to the outer wall of the slurry inlet or outlet pipe, fixing the pipe position through friction and preventing pipe movement. Release Action: When the first lead screw 206 rotates counterclockwise, the threaded pair transmits force in the opposite direction, causing the two clamping blocks to move away from each other along the lead screw axis, opening the clamping space, releasing the constraint on the pipeline, and facilitating pipeline extension or position adjustment. The two first lead screws 206 correspond to the inlet pipe clamp 204 and the outlet pipe clamp 205 respectively, and do not interfere with each other. When the inlet pipe needs to be clamped, the corresponding lead screw drives the third and fourth clamping blocks to cooperate. When the inlet pipe needs to be clamped, the other lead screw drives the first and second clamping blocks to move. This can realize independent clamping of a single pipe or synchronous clamping of two pipelines, adapting to different operating scenarios. Therefore, because the thread transmission of the lead screw-nut has the characteristics of high precision and low backlash, it can accurately control the movement stroke of the clamping blocks, ensuring that the pipeline center axis is consistent with the extension channel axis during each clamping, avoiding pipeline offset from affecting docking accuracy. At the same time, the relative clamping method of the clamping blocks can evenly distribute the clamping force, preventing excessive local force on the pipeline from causing damage. The slurry inlet pipe clamp 204 and the slurry outlet pipe clamp 205 are controlled by independent lead screws, allowing for independent operation according to operational needs. This satisfies the independent clamping requirements when the slurry inlet and outlet pipes extend separately, and also enables synchronous clamping of both pipes. It adapts to the independent operating logic of the slurry circuit in the slurry shield machine, preventing a single clamp failure from affecting the overall operation. The mechanical transmission structure (lead screw—nut—clamping block) is highly rigid, eliminating the vulnerability issues of flexible transmission components. It can withstand high-frequency vibrations during shield machine excavation, ensuring the clamping remains secure. The self-locking mechanism of the threaded drive also maintains the clamping block's fixed position even without power input, further enhancing the stability of the pipe clamping and adapting to the complex conditions of tunnel construction. The first lead screw 206 has a simple operating logic and can be directly connected to the shield machine control system. Automatic switching between clamping and releasing is achieved through signal commands, eliminating the need for manual adjustment of the clamping block position. This reduces labor intensity while improving operational efficiency, highly aligning with the overall mechanized and automated design concept of the device.

[0037] In the embodiments provided by this utility model, the mud pipe clamping device 2 includes a traveling trolley 203, a clamping mechanism disposed on the traveling trolley 203; a traveling gear 202 disposed at the bottom of the traveling trolley 203; a rack and pinion track 201 meshing with the traveling gear 202; and a traveling drive device 215 for driving the traveling gear 202 to rotate. Storage and pushing cylinder 214 is mounted on the traveling trolley 203 and is used to push the special mud pipe 3 into the storage cylinder.

[0038] The mud pipe clamping device 2 achieves precise positioning and efficient pushing of the dedicated mud pipe 3 through the integrated mechanical design of the traveling trolley 203, gear and rack transmission, and storage and pushing cylinder 214. The core technical advantages focus on the adaptability, stability, and functionality of the mechanical mechanism, as follows: The clamping mechanism and the storage and pushing cylinder 214 are both integrated on the traveling trolley 203, forming an integrated module of movement, clamping, and pushing. There is no need to set up additional independent mounting brackets or transmission intermediaries. This structural design reduces the assembly gap and transmission loss of mechanical components, and makes the position adjustment of the traveling trolley 203, the fixation of the clamping mechanism, and the thrust transmission of the pushing cylinder 214 work together along the same axis. The path is short and direct, which greatly improves the action response speed and energy utilization efficiency, while saving the installation space of the tunnel boring machine and adapting to the narrow working environment. The traveling gear 202 at the bottom of the traveling trolley 203 and the rack and pinion track 201 form a meshing transmission pair. The gear and rack transmission has the characteristics of constant transmission ratio and no slippage. The moving distance of the traveling trolley 203 corresponds precisely and linearly to the rotation angle of the traveling gear 202. When the traveling drive device 215 drives the gear transmission, it can achieve millimeter-level stopping accuracy, ensuring that the axis of the special mud pipe 3 is precisely aligned with the axis of the storage cylinder, avoiding pipe jamming, damage or pushing failure due to positioning deviation, and providing a reliable position reference for subsequent pipe storage. The traveling drive device 215 and the storage pushing cylinder 214 operate independently and can be started separately and in coordination according to the operation requirements. The traveling trolley 203 can be freely adjusted in position through the gear and rack transmission to adapt to the storage inlet of different storage cylinders. The storage pushing cylinder 214 is only activated after positioning is completed, accurately pushing the pipe along the axial direction. This independence not only meets the storage requirements of the special mud pipe 3, but also allows for position adjustment during pipe extension and docking with the clamping mechanism, adapting to the entire storage-extension operation with high flexibility. The meshing contact of the gears and racks, and the rigid connection between the hydraulic cylinder and the traveling trolley 203, give the overall structure excellent impact and vibration resistance. In the high-frequency vibration and dusty environment of the tunnel boring machine (TBM) excavation process, the mechanical components are less prone to loosening or failure, maintaining stable transmission accuracy and pushing effect over a long period. The precision of the gear and rack transmission and the controllability of the hydraulic cylinder's movement make it easy to integrate with the TBM control system. Automated control of traveling positioning and pushing actions can be achieved through electrical or hydraulic signals, eliminating the need for manual position adjustment or application of thrust. This reduces errors and labor intensity caused by manual intervention, allows for synchronization with the TBM's excavation rhythm, enables efficient and continuous operation of pipeline storage, and improves overall construction efficiency.

[0039] It should be noted that a conveying roller bracket 110 is installed at the mud pipe storage inlet of the rear housing 103. Several conveying rollers 111 are linearly arranged on the conveying roller bracket 110 along the axis of the mud pipe storage inlet. The conveying rollers 111 can rotate under external force, which facilitates the conveying of the special mud pipe 3 during storage. The conveying rollers 111 are shaped with large ends and small middle, which can prevent the special mud pipe 3 from sliding out from both sides of the conveying rollers 111 during the conveying process.

[0040] In addition, the connection between the front housing 101 and the rear housing 103 is made by connecting with pull rods 112. Four pull rods 112 with threads at both ends pass through the mounting holes on the front housing 101 and the rear housing 103 respectively. Each pull rod 112 is equipped with at least one first nut 113 at both ends for locking and fixing.

[0041] Among them, a lead screw drive gear 216 is installed at the same end of each of the two first lead screws 206. Both lead screw drive gears 216 mesh with the rack cylinder 217 installed on the traveling trolley 203 to form a gear and rack motion pair. The rack cylinder 217 is used to drive the first lead screw 206 to perform forward and reverse rotation.

[0042] The complete workflow steps for a slurry shield tunneling pipeline system are as follows: 1. Mud pipe storage: After the dedicated mud pipe 3 stored in the storage tube nest 102 is used up, the dedicated mud pipe 3 is stored. When storing the dedicated mud pipe 3, the slurry shield tunneling machine stops tunneling. First, start the rotating mechanism 114, and the storage tube nest 102 rotates to the storage position. At this time, one end of one of the storage tubes is connected to the storage channel on the rear shell 103. Then, the special mud pipe 3, which is transported into the tunnel, is placed in the prescribed direction, with one end on the conveying roller 111 on the conveying roller bracket 110 and the other end on the storage pipe roller 213 on the storage pipe roller bracket 212. Then, the traveling drive device 215 drives the traveling trolley 203 along the rack and pinion track 201 towards the mud pipe storage device 1, pushing the special mud pipe 3 through the storage channel on the rear housing 103 into the storage cylinder in the storage compartment 102. After the traveling trolley 203 is in position, the piston rod of the pushing cylinder 214 extends to completely push the special mud pipe 3 into the storage cylinder. Then, the piston rod of the pushing cylinder 214 retracts, and the traveling drive device 215 drives the traveling trolley 203 away from the mud pipe storage device 1 along the rack and pinion track 201. Then, the rotary drive device 106 is started again to rotate the storage compartment 102 to begin storing the next special mud pipe 3, until all storage cylinders are stored.

[0043] 2. Mud pipe switching: Start the rotary drive device 106 to rotate the storage tank 102 to the working position. At this time, two of the storage tanks are connected to the inlet pipe extension channel 117 and the outlet pipe extension channel 119 on the rear housing 103, respectively. The piston rod of the inlet pipe push cylinder 104 extends to push one end of the special mud pipe 3 in the storage tank into the inlet pipe extension channel 117 on the rear housing 103 and couple it with the other end of the previous special mud pipe 3 left in the extension channel as the inlet pipe. The piston rod of the outlet pipe push cylinder 105 extends to push one end of the special mud pipe 3 in the storage tank into the outlet pipe extension channel 119 on the rear housing 103 and couple it with the other end of the previous special mud pipe 3 left in the extension channel as the outlet pipe.

[0044] III. Mud Pipe Connection: After the mud pipe switching is completed, the mud pipe connection begins. The piston rod of the sleeve telescopic cylinder 109 retracts, driving the inlet pipe extension sleeve 107 and the outlet pipe extension sleeve 108 to retract and shorten the inlet pipe extension channel 117 and the outlet pipe extension channel 119, exposing the coupling connection of the two dedicated mud pipes 3 within the inlet pipe extension channel 117 and the outlet pipe extension channel 119. Then, the mud pipe clamp is installed at the coupling connection. Next, the rack cylinder 217 retracts, driving the inlet pipe clamp 204 and the outlet pipe clamp 205 to open, thus loosening the inlet pipe clamp 204. The clamp on the previous slurry inlet pipe is opened, causing the slurry outlet pipe clamp 205 to release its grip on the previous slurry outlet pipe. Then, the traveling drive device 215 drives the traveling trolley 203 to approach the mud pipe storage device 1 along the rack and pinion track 201. After the traveling trolley 203 stops in position, the rack and pinion cylinder 217 extends, driving the slurry inlet pipe clamp 204 and the slurry outlet pipe clamp 205 to close. This causes the slurry inlet pipe clamp 204 to clamp the dedicated mud pipe 3 that has just extended from the slurry inlet pipe extension channel 117, and the slurry outlet pipe clamp 205 to clamp the dedicated mud pipe 3 that has just extended from the slurry outlet pipe extension channel 119. Finally, the piston rod of the slurry inlet pipe push cylinder 104 retracts, and the piston rod of the slurry outlet pipe push cylinder 105 retracts.

[0045] IV. Mud Pipe Extension: After the mud pipe connection is completed, the mud pipe extension begins. The mud pipe extends synchronously with the slurry shield tunneling machine. As the slurry shield tunneling machine continues to advance, the mud pipe storage device 1 and the rack and pinion track 201 installed on the slurry shield trailer move forward with the machine. Meanwhile, the dedicated mud pipe 3 within the extension channel of the mud pipe storage device 1 remains stationary, connected to the external mud pipe. The traveling trolley 203 holding this dedicated mud pipe 3 also remains stationary. Therefore, relatively speaking, as the mud pipe storage device 1 continues to advance, the mud pipe extends... The dedicated mud pipe 3 is continuously extended from the extension channel. The traveling trolley 203 also moves backward relative to the rack and pinion track 201. As the dedicated mud pipe 3 extends from the extension channel, the piston rod of the sleeve telescopic cylinder 109 extends, driving the inlet pipe extension sleeve 107 and the outlet pipe extension sleeve 108 to extend, extending the inlet pipe extension channel 117 and the outlet pipe extension channel 119. When the mud pipe extension is completed, the other end is exactly in the extended extension channel. After the mud pipe extension is completed, the slurry shield tunneling stops. After the mud pipe extension is completed, the mud pipe is switched and a new storage tube is placed in the working position. Then, the mud pipe connection and mud pipe extension steps are continued until the dedicated mud pipe 3 stored in the storage tube nest 102 is used up. Then, a new round of mud pipe storage steps is carried out. This cycle of mud pipe extension is repeated continuously.

[0046] This application also provides a tunnel boring machine, including the aforementioned slurry shield tunneling pipeline device. The various technical advantages of the aforementioned slurry shield tunneling pipeline device embodiments are also present, and will not be elaborated upon here.

[0047] The embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other.

[0048] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A slurry shield tunneling pipeline device, characterized in that, include: A mud pipe clamping device (2) is used to clamp and push a special mud pipe (3) to move back and forth along the tunneling direction; The mud pipe storage device (1) has a storage position and a working position. The mud pipe storage device can rotate around its own central axis to switch the positions of the storage position and the working position. The mud pipe storage device (1) and the mud pipe clamping device (2) are aligned along the tunneling direction.

2. The slurry shield tunneling pipeline device according to claim 1, characterized in that, include: The front housing (101) is provided with a mud pipe inlet channel (115) and a mud pipe outlet channel (116) inside the front housing (101). The mud pipe inlet channel (115) is connected to the shield tunneling machine's mud inlet circuit, and the mud pipe outlet channel (116) is connected to the shield tunneling machine's mud outlet circuit. Storage tube nest (102), wherein at least 4 storage tubes are provided inside the storage tube nest (102); The rear housing (103) is provided with an inlet pipe extension channel (117), an outlet pipe extension channel (119) and a mud pipe storage channel (118). The mud pipe inlet channel (115), the mud pipe outlet channel (116), the storage tube, the inlet pipe extension channel (117), the outlet pipe extension channel (119), and the mud pipe storage channel (118) are distributed in concentric circles; When the slurry shield tunneling pipeline device is switched to the working position, the two storage tubes are in working condition. One storage tube is connected to the slurry inlet channel (115) of the slurry pipe, and the other end of the storage tube is connected to the slurry inlet extension channel (117); the other storage tube is connected to the slurry outlet channel (116) of the slurry pipe, and the other end of the storage tube is connected to the slurry outlet extension channel (119). When the slurry shield tunneling pipeline device is switched to the storage position, the storage cylinder is connected to the slurry pipe storage channel (118).

3. The slurry shield tunneling pipeline device according to claim 2, characterized in that, The bottom of the front housing (101) is provided with a first mounting seat, and the bottom of the rear housing (103) is provided with a second mounting seat.

4. The slurry shield tunneling pipeline device according to claim 3, characterized in that, It includes a rotating mechanism (114), which is located outside the storage tube nest (102) and is used to drive the storage tube nest (102) to rotate around its own geometric central axis.

5. The slurry shield tunneling pipeline device according to claim 4, characterized in that, The slurry shield tunneling pipeline system includes: The slurry inlet pipe pushing cylinder (104) pushes the special mud pipe (3) in the storage cylinder into the slurry inlet pipe extension channel (117); The slurry pipe pushing cylinder (105) pushes the special mud pipe (3) in the storage cylinder into the slurry pipe extension channel (119).

6. The slurry shield tunneling pipeline device according to claim 5, characterized in that, The outlet of the slurry inlet pipe extension channel (117) and the outlet of the slurry outlet pipe extension channel (119) are both provided with telescopic sleeve structures, which change the length of the slurry inlet pipe extension channel (117) and the slurry outlet pipe extension channel (119).

7. The slurry shield tunneling pipeline device according to claim 6, characterized in that, The mud pipe clamping device (2) includes: Storage pipe roller bracket (212) is located at the entrance of the mud pipe storage channel (118), and storage pipe rollers (213) are arranged along the conveying axis on the storage pipe roller bracket (212). The feed pipe roller bracket (208) is located at the entrance of the feed pipe extension channel (117), and feed pipe rollers (209) are arranged along the conveying axis on the feed pipe roller bracket (208). The discharge pipe roller bracket (210) is located at the entrance of the discharge pipe extension channel (119), and discharge pipe rollers (211) are arranged along the conveying axis on the discharge pipe roller bracket (210).

8. The slurry shield tunneling pipeline device according to claim 7, characterized in that, The mud pipe clamping device (2) includes a clamping mechanism, which includes: The slurry pipe clamp (205) is used to clamp the slurry pipe and includes a first clamping block and a second clamping block, wherein the first clamping block and the second clamping block cooperate. A slurry inlet pipe clamp (204) is used to clamp the slurry inlet pipe, and includes a third clamping block and a fourth clamping block, wherein the third clamping block and the fourth clamping block cooperate with each other. The first lead screw (206) has two parts, one of which is adapted to the first clamping block and the second clamping block, and the other is adapted to the third clamping block and the fourth clamping block; A lead screw nut (207) is provided, wherein the first lead screw (206) is engaged with the lead screw nut (207).

9. The slurry shield tunneling pipeline device according to claim 8, characterized in that, The mud pipe clamping device (2) includes a traveling trolley (203), and the clamping mechanism is mounted on the traveling trolley (203); A traveling gear (202) is located at the bottom of the traveling trolley (203); A rack and pinion track (201) meshes with the traveling gear (202); A walking drive device (215) is used to drive the walking gear (202) to rotate; Storage and pushing cylinder (214), which is mounted on the traveling trolley (203), is used to push the special mud pipe (3) into the storage cylinder.

10. A tunnel boring machine, characterized in that, Includes the slurry shield tunneling pipeline device as described in any one of claims 1 to 9.

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