Telescopic pipeline marshalling module, pipeline walking mechanism, pipeline connection method and tunneling method

Abstract

The invention relates to the technical field of tunnel construction equipment, in particular to a telescopic pipeline marshalling module, a pipeline walking mechanism, a pipeline connection method and a tunneling method, and solves the problem that the extendable length of a pipeline is limited in the prior art. The pipeline marshalling module comprises at least one pipeline, a plurality of clamping devices are arranged on the pipeline in the length direction of the pipeline at intervals, and hanging sliding devices are arranged on the clamping devices. The two ends of the pipeline are connected with a first pipeline connector and a second pipeline connector respectively, and at least three pipeline connectors are arranged on the first pipeline connector. The pipeline walking mechanism comprises a single hanging beam, a pipeline marshalling module is hung on the single hanging beam, a dragging device, a braking device and a retreating device are arranged on the single hanging beam, the dragging device is located on the front side of the telescopic pipeline marshalling module, and the dragging device is connected with a hanging sliding device at the front end of the telescopic pipeline marshalling module. The pipeline extension device has the beneficial effects that the pipeline is modularly designed to form the pipeline marshalling module, the extension length limitation of a traditional extension device is broken through, and the pipeline extension capacity and pipeline adaptability are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tunnel construction equipment, in particular to a telescopic pipeline marshalling module, a pipeline walking mechanism, a pipeline connection method and a tunneling method. BACKGROUND

[0002] A full-face tunnel boring machine (TBM) has the ability of continuous cycle operation of rock breaking, propulsion, slag removal, support, ventilation, etc., and has good tunnel forming effect, high tunneling efficiency, safety, high efficiency, economy and environmental protection, and is widely used in roadway engineering construction of water conservancy, railway, rail transit, coal mine, metal mine, etc. However, using the existing mine TBM method for tunneling, the TBM machine has a long length (about 100m), which leads to difficulties in transporting parts into the well, large engineering quantity, long time consumption, many parts and difficult transfer of underground assembly and removal of the chamber, which has become a serious problem that seriously restricts and affects the connection of mining and tunneling and the production capacity of the mine.

[0003] In view of this pain point, an ultra-mobile full-face tunnel boring machine is proposed in the industry, the main machine and the rear support are separated, and long-distance pipelines, cables, etc. are used to connect between the main machine and the rear support. When the full-face tunnel boring machine advances, only the main machine advances, and the rear support remains in place, which significantly reduces the length of the machine during tunneling, thereby realizing rapid assembly, starting and transfer of the main machine. For the ultra-mobile full-face tunnel boring machine, the extension problem of long-distance hydraulic pipelines, cables, water pipes, grease pipes, etc. between the main machine and the rear support needs to be overcome.

[0004] A patent with publication number CN116122906A discloses a pipeline extension device and a tunnel boring equipment in the prior art. The pipeline extension device includes: a plurality of tunnel pipeline fixing structures, which are arranged at intervals along the extension direction of the tunnel and are slidably arranged along the extension direction; a pulling structure, which is connected to the plurality of tunnel pipeline fixing structures and connected to the tunnel boring equipment, and the pulling structure moves synchronously along the extension direction under the driving of the tunnel boring equipment and pulls the plurality of tunnel pipeline fixing structures and the pipelines fixed thereby to move along the extension direction; and a state monitoring structure, which is used to detect the stress state of the pulling structure and judge the stress state of the pipeline according to the stress state of the pulling structure. The pipeline extension device uses the pulling structure to pull the pipeline in the tunnel to move along the tunnel direction. Since the length of the pipeline is fixed, the device faces the problem of limited extendible length of the pipeline, and the pipeline is extended by adding a mud pipe, the length of the pipeline is extended each time, which is only suitable for simple scenarios with few parallel pipelines and short extension distance. The pipeline extension device is not suitable for complex pipeline long-distance extension requirements. SUMMARY

[0005] The application provides a scalable pipeline grouping module, a pipeline walking mechanism, a pipeline connection method and a tunneling method, and solves the problem of limited pipeline extension length in the prior art.

[0006] The technical scheme of the application is implemented as follows: A scalable pipeline grouping module comprises at least one pipeline, a plurality of clamping devices are arranged at intervals along the length direction of the pipeline, and a suspension sliding device is arranged on the clamping device; the two ends of the pipeline are respectively connected with a first pipeline joint and a second pipeline joint, and at least three pipeline interfaces are arranged on the first pipeline joint. The quick connection and disconnection of a plurality of pipeline grouping modules are realized through the mutual connection of the first pipeline joint and the second pipeline joint, the modular design and sectional control of the pipeline are realized, the limitation of the extension length of the traditional extension device is broken through, the long-distance extension of the pipeline is realized, and the pipeline extension capacity and pipeline adaptability are significantly improved, thereby providing a sustainable solution for long-distance liquid supply.

[0007] A distance limiting component is arranged between the two adjacent suspension sliding devices; the distance limiting component comprises a limiting rod. The limiting rod limits the minimum distance between the two adjacent suspension sliding devices, thereby controlling the minimum curvature radius of the pipeline between the two adjacent suspension sliding devices, and avoiding the situation that the curvature radius of the pipeline is too small to cause a large pressure loss of the oil liquid passing through the pipeline.

[0008] The distance limiting component further comprises a first steel wire rope, the first steel wire rope is arranged between the two adjacent suspension sliding devices, and the length of the first steel wire rope is smaller than the natural extension length of the pipeline between the two adjacent suspension sliding devices. The first steel wire rope serves as a medium for transmitting the dragging force, and ensures that the dragging force is entirely borne by the first steel wire rope during the dragging process, thereby preventing the pipeline from being pulled apart.

[0009] The clamping device comprises a clamp support, at least two connecting rods are arranged on the clamp support, two oppositely arranged arc-shaped clamping pieces are arranged on the connecting rods, and clamping nuts for fixing the arc-shaped clamping pieces are threadedly connected to the connecting rods. The two arc-shaped clamping pieces clamp the pipeline, and the arc-shaped clamping pieces extrude and clamp the pipeline when the clamping nuts are tightened, so that the pipeline is clamped and fixed by the arc-shaped clamping pieces.

[0010] An X-shaped clamp is arranged between the two arc-shaped clamping pieces, and the arc-shaped clamping pieces and the X-shaped clamp clamp the pipeline; guide ears are arranged on the arc-shaped clamping pieces and the X-shaped clamp, and the connecting rods pass through guide holes in the guide ears. The X-shaped clamp and the connecting rods are used to fasten a plurality of pipelines in a parallel manner to form an integrated group, and the clamping nuts at the ends of the connecting rods extrude the clamp to realize the close arrangement of the pipelines.

[0011] The limiting structure is provided on the clamp support, the limiting mechanism is provided with a limiting slot, and the guide lug is in sliding fit with the limiting slot. The limiting structure realizes stable constraint on the pipeline through cooperation of the limiting slot and the guide lug, effectively prevents left and right swing of the pipeline, and guarantees stability of installation of the pipeline.

[0012] The suspension sliding device comprises two oppositely arranged roller frames, rollers are rotationally connected to the roller frames, and the roller frames are connected with the clamp support through connecting rods. The suspension sliding device can be connected with the pipeline through the clamp support and drive the pipeline to move in the tunnel, so that the pipeline can move with the tunneling host.

[0013] The pipeline walking mechanism comprises the telescopic pipeline grouping module, the pipeline grouping module is hoisted on a single hoisting beam, the single hoisting beam is arranged along the extension direction of the tunnel, the single hoisting beam is provided with a towing device, a braking device and a back-off device, the towing device is located at the front side of the telescopic pipeline grouping module, and the towing device is connected with the suspension sliding device at the front end of the telescopic pipeline grouping module; when the pipeline in the pipeline grouping module is in a natural drooping state, the curvature radius R of the outermost pipeline of the pipeline grouping module, and the outer diameter D of the largest pipeline in the pipeline grouping module, R is greater than or equal to 3D. The suspension sliding device is connected with the single hoisting beam through rollers, the single hoisting beam provides support for the telescopic pipeline grouping module through the suspension sliding device; the towing device provides power for movement of the telescopic pipeline grouping module, and pulls the pipeline grouping module to move forward when the tunneling host moves; the minimum value of the curvature radius of the pipeline bending part is set, the pipeline grouping module is in a contracted state, and the situation that the pipeline curvature radius is too small to cause large pressure loss of oil through the pipeline is avoided; meanwhile, the pipeline grouping module occupies small space, which is beneficial to storage and extension of the pipeline grouping module.

[0014] A pushing and pulling force monitoring device is arranged between the towing device and the suspension sliding device. The pushing and pulling force monitoring device is arranged on the thin steel plate between the towing device and the suspension sliding device and is used for monitoring the pushing and pulling force in real time; specifically, the pulling force value required for tightening the first steel wire rope can be set as the threshold value of the pushing and pulling force monitoring device, when the pushing and pulling force monitoring device detects that the pushing and pulling force reaches the threshold value, it is indicated that the telescopic pipeline grouping module has been fully extended and unfolded, the towing device triggers automatic parking, prevents damage of the pipeline due to excessive stretching, avoids potential risks such as mechanical jamming or abnormal load of the suspension sliding device, and effectively improves the safety of the telescopic pipeline grouping module in use.

[0015] The braking device comprises a clamp holder hoisted on the inner wall of the tunnel, a telescopic driving member is hinged to the tail end of the clamp holder, and a braking block for clamping the suspension sliding device is arranged at the head end of the clamp holder. The braking device brakes the suspension sliding device at the rear end of the telescopic pipeline grouping module, and the braking device and the towing device can fully unfold the telescopic pipeline grouping module and realize long-distance pipeline extension.

[0016] The rollback device comprises a winch, and a second steel wire rope is wound on the winch. An end of the second steel wire rope is detachably connected with the suspension sliding device at the front end of the pipe grouping module, or the end of the second steel wire rope is detachably connected with the pulling device. The winch winding the second steel wire rope drives the suspension sliding device at the front end to move synchronously, so that the distance between the suspension sliding devices in the pipe grouping module is reduced, and the pipe is coiled to achieve the rollback of the pipe.

[0017] A pipe connection method of the pipe walking mechanism during walking, comprising a rear matching trolley, the rear matching trolley being provided with a first liquid supply station and a second liquid supply station, and a pressure limiting valve being arranged on the liquid supply pipe of the first liquid supply station and the second liquid supply station. Before the pipe connection, the first pipe joint of the Nth pipe grouping module is connected with the liquid supply pipe of the first liquid supply station, and the first liquid supply station supplies liquid to the pipe of the Nth pipe grouping module. During the pipe connection, the first pipe joint of the N+1th pipe grouping module is connected with the liquid supply pipe of the second liquid supply station, the second pipe joint of the N+1th pipe grouping module is connected with the first pipe joint of the Nth pipe grouping module, the first liquid supply station simultaneously supplies liquid to the pipes of the Nth pipe grouping module and the N+1th pipe grouping module, and the air in the pipe of the N+1th pipe grouping module is discharged through the pressure limiting valve on the second liquid supply station. After the pipe connection, after the pipe of the N+1th pipe grouping module is filled with liquid medium, the second liquid supply station successively supplies liquid to the pipes of the N+1th pipe grouping module and the Nth pipe grouping module, and then the first pipe joint of the Nth pipe grouping module is disconnected with the liquid supply pipe of the first liquid supply station.

[0018] The liquid supply pipe of the first liquid supply station and the second liquid supply station is provided with a one-way valve. When the air in the pipe of the N+1th pipe grouping module is discharged, the one-way valve can prevent the liquid medium of the first liquid supply station from entering the second liquid supply station through the pipe, ensure that the liquid medium always flows away from the liquid supply station, and ensure the safety of the liquid supply station.

[0019] A tunneling method, comprising a pipe walking mechanism advancing process; the brake device on the single suspension beam limits the movement of the last suspension sliding device in the pipe grouping module, the pulling device on the single suspension beam pulls the first suspension sliding device in the pipe grouping module to move forward to make the pipe in the pipe grouping module unfold and straighten; after the pipe of the Nth pipe grouping module on the single suspension beam is completely unfolded, the N+1th pipe grouping module is connected between the Nth pipe grouping module and the rear matching trolley by using the pipe connection method.

[0020] In the process of the pulling device pulling the pipeline in the pipeline grouping module to be unfolded and straightened, the pushing and pulling force monitoring device is used to monitor the pulling force of the pulling device on the suspension sliding device in real time, the pulling force required to tighten the first steel wire rope is set as a threshold value, and when the pulling force reaches the threshold value, the pulling device triggers autonomous parking, and the limiting of the brake device on the last suspension sliding device in the pipeline grouping module is cancelled. When the pulling force reaches the threshold value, the pipeline is fully extended, which prevents the pipeline from being damaged due to excessive stretching, and avoids potential risks such as mechanical jamming or abnormal load of the suspension sliding device.

[0021] The tunneling method further comprises a pipeline walking mechanism retreat process; the second steel wire rope on the winch is connected with the pulling device, and the brake device limits the last suspension sliding device in the pipeline grouping module; the winch is started, the winch winds the second steel wire rope, the second steel wire rope pulls the pulling device to retreat on the single suspension beam, the pulling device pushes each suspension sliding device in the pipeline grouping module to approach each other, and the pipeline in the pipeline grouping module is contracted and folded, and the pipeline grouping module is disassembled and recycled at the tunnel entrance position.

[0022] The beneficial effects of the present application are: the pipeline is modularly designed to form a pipeline grouping module, the connection and disconnection of multiple pipeline grouping modules are realized through the connecting device, the length limitation of the traditional extension device is broken through, the long-distance extension of the pipeline is realized, and the pipeline extension capacity and pipeline adaptability are significantly improved, thereby providing a sustainable solution for long-distance liquid supply and power supply.

[0023] The X-shaped clamp and the connecting rod are used to fasten multiple pipelines into integrated groups in a parallel manner, the clamping nuts at the ends of the connecting rods are used to extrude the clamps to realize the close arrangement of the pipelines, and the pipelines can be separated or reorganized in cooperation with the connecting device.

[0024] The brake device brakes the suspension sliding device in sections, clamps the suspension sliding device at the rear end when the pulling device works, and makes the pipeline grouping module gradually spread out; the brake is released after the pipeline grouping module is completely spread out, and the pipeline grouping module is connected.

[0025] The pulling force of the pulling device is monitored in real time through the pushing and pulling force monitoring device, the spreading degree of the pipeline grouping module is judged by judging whether the pulling force reaches a threshold value, and precise control is realized. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0027] Figure 1 A schematic diagram of a telescopic pipe grouping module structure of the present application; Figure 2 A schematic diagram of a suspension sliding device structure; Figure 3 A schematic diagram of a telescopic pipe grouping module structure of the present application; Figure 2 A sectional view at A-A in the above figure; Figure 4 A schematic diagram of a braking device structure; Figure 1 ; Figure 5 A schematic diagram of a braking device structure; Figure 2 ; Figure 6 A schematic diagram of another embodiment of a braking device structure; Figure 7 A schematic diagram of a pipe walking mechanism; Figure 8 A schematic diagram of a pipe walking mechanism driving a telescopic pipe grouping module to extend; Figure 9 A schematic diagram of a pipe walking mechanism driving a telescopic pipe grouping module to contract; Figure 10 A schematic diagram of a rear matching trolley and a liquid supply station; Figure 11 A schematic diagram of a pipe connection front structure; Figure 12 A schematic diagram of a pipe connection structure; Figure 13 A schematic diagram of a pipe connection rear structure.

[0028] In the figure: 1, suspension sliding device, 2, clamping device, 3, first steel wire rope, 4, pipe, 5, connection device, 6, pulling device, 7, pushing and pulling force monitoring device, 8, single hanging beam, 9, braking device, 10, winch, 11, second steel wire rope, 12, rear matching trolley, 13, first liquid supply station, 14, second liquid supply station, 15, one-way valve, 16, pressure limiting valve, 101, roller, 102, connecting rod, 103, roller frame, 21, clamp support, 22, X-shaped clamp, 23, connecting rod, 24, guide ear, 25, limiting structure, 26, clamping nut, 51, first pipe joint, 52, second pipe joint, 91, holder, 92, oil cylinder, 93, brake block, 94, air cylinder. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0030] Embodiment 1, as shown in Figure 1 The embodiment 1 is a scalable pipeline grouping module, which comprises at least one pipeline 4, a plurality of clamping devices 2 are arranged at intervals along the length direction of the pipeline 4, a hanging sliding device 1 is arranged on the clamping device 2, and an end of the pipeline 4 is provided with a connecting device 5, the connecting device 5 comprises a first pipeline joint 51 and a second pipeline joint 52, and the first pipeline joint 51 is provided with at least three pipeline interfaces. Specifically, the pipeline 4 is a liquid medium pipeline, the first pipeline joint 51 and the second pipeline joint 52 are arranged at two ends of the pipeline 4 respectively, and the first pipeline joint 51 in one pipeline grouping module is connected with the second pipeline joint 52 in another pipeline grouping module to realize the connection and disconnection of a plurality of pipeline grouping modules; the pipeline is modularly designed to form a pipeline grouping module, and a plurality of pipeline grouping modules can be installed between the tunneling host and the rear supporting trolley 12 during the tunneling work, thereby breaking through the length limitation of the traditional pipeline extension device during extension, significantly improving the pipeline extension capacity and pipeline adaptability, and providing a sustainable solution for long-distance liquid supply and power supply.

[0031] Further, a distance limiting assembly is arranged between the two adjacent hanging sliding devices 1, and the distance limiting assembly comprises a limiting rod. When the pipeline 4 of the pipeline grouping module is in a natural drooping state, the limiting rod can limit the minimum distance between the two adjacent hanging sliding devices 1, thereby controlling the minimum curvature radius of the pipeline between the two adjacent hanging sliding devices 1, and avoiding the situation that the curvature radius of the pipeline is too small to cause a large pressure loss of the oil passing through the pipeline.

[0032] Further, the distance limiting assembly further comprises a first steel wire rope 3, and the first steel wire rope 3 is arranged between the two adjacent hanging sliding devices 1, and the length of the first steel wire rope 3 is less than the length of the pipeline 4 between the two adjacent hanging sliding devices 1. In the embodiment, the length of the first steel wire rope 3 is greater than four-fifths of the length of the pipeline 3 between the two adjacent hanging sliding devices 1, so that the first steel wire rope 3 bears all the pulling force when the pipeline grouping module is unfolded, and the pipeline 4 can be completely unfolded, avoiding damage to the pipeline 4 caused by the pulling force, thereby ensuring the use safety of the pipeline grouping module during unfolding.

[0033] Further, the clamping device 2 comprises a clamp support 21, at least two connecting rods 23 are arranged on the clamp support 21, two oppositely arranged arc-shaped clamping pieces are arranged on the connecting rods 23, and clamping nuts 26 for fixing the arc-shaped clamping pieces are threadedly connected to the connecting rods 23. In the embodiment, the clamp support 21 is a horizontal plate, the connecting rods 23 are arranged on the lower side of the plate, the upper ends of the connecting rods 23 are fixedly connected to the clamp support 21, the two ends of the arc-shaped clamping pieces are provided with guide ears 24, the connecting rods 23 pass through the guide holes in the guide ears 24, and the arc-shaped clamping pieces are locked by the clamping nuts 26 after being tightened, so that the arc-shaped clamping pieces press and clamp the pipeline 4, and the pipeline 4 is fixed on the clamping device 2.

[0034] In embodiment 2, on the basis of embodiment 1, a telescopic pipeline grouping module is shown in Figure 2 The X-shaped clamp 22 is arranged between the two arc-shaped clamping pieces, and the arc-shaped clamping pieces and the X-shaped clamp 22 cooperate to clamp the pipeline 4. The arc-shaped clamping pieces and the X-shaped clamp 22 are each provided with a guide ear 24, and the connecting rod 23 passes through the guide hole in the guide ear 24. In the embodiment, three groups of connecting rods 23 are arranged on the clamp support 21, each group of connecting rods 23 includes four connecting rods 23, each guide ear 24 is provided with two guide holes, and the four connecting rods 23 fix a group of X-shaped clamps 22 and arc-shaped clamping pieces. Specifically, when the clamping device 2 is assembled, one arc-shaped clamping piece is first arranged on the connecting rod 23, then a plurality of X-shaped clamps 22 are arranged on the connecting rod 23, the pipeline 3 is located between the X-shaped clamps 22, and finally the other arc-shaped clamping piece is arranged at the lower end. The clamping nuts 26 are threadedly connected to the connecting rods 23, and the X-shaped clamps 22 and the arc-shaped clamping pieces are pressed and clamped after the clamping nuts 26 are tightened, so as to realize the clamping and fixing of the pipeline 4. The X-shaped clamps 22 and the connecting rods 23 are used to fasten a plurality of pipelines 4 in a parallel manner to form an integrated group, and the clamping nuts 26 at the ends of the connecting rods 23 press the clamps to realize the close arrangement of the pipelines.

[0035] Further, as shown in Figure 3 The clamp support 21 is provided with a limiting structure 25, the limiting structure 25 is provided with a limiting groove, and the guide ear 24 is in sliding cooperation with the limiting groove. The upper end of the limiting structure 25 is fixedly connected to the clamp support 21, the limiting groove is arranged in parallel with the connecting rod 23, the cross-sectional shape of the limiting groove corresponds to the shape of the guide ear 24, that is, the limiting groove limits the X-shaped clamp 22 and the arc-shaped clamping piece through the guide ear 24, avoids the shaking of the X-shaped clamp 22 and the arc-shaped clamping piece, effectively prevents the left and right swinging of the pipeline 4, and guarantees the stability of the installation of the pipeline 4.

[0036] Further, the suspension sliding device 1 comprises two oppositely arranged roller frames 103, the roller frames 103 are rotationally connected with the rollers 101, the roller frames 103 are connected with the clamp support 21 through the connecting rods 102. Specifically, the upper side of the clamp support 21 is provided with a connecting plate, the connecting plate is provided with a through hole; the two roller frames 103 are arranged on the two sides of the connecting plate respectively, the connecting rods 102 pass through the through holes on the roller frames 103 and the connecting plate, so as to realize the connection between the roller frames 103 and the connecting plate, and further realize the connection between the roller frames 103 and the clamp support 21.

[0037] In example 3, on the basis of example 2, as shown in Figure 7 、 Figure 8 、 Figure 9 A pipeline walking mechanism, comprising a single suspension beam 8 arranged along the extension direction of the tunnel, a pipeline grouping module connected on the single suspension beam 8, a suspension sliding device 1 connected with the single suspension beam 8, a towing device 6, a braking device 9 and a rollback device arranged on the single suspension beam 8, the towing device 6 is located on the front side of the pipeline grouping module, and the towing device 6 is connected with the suspension sliding device 1 at the front end of the pipeline grouping module; when the pipelines 4 in the pipeline grouping module are in a natural drooping state, the curvature radius R of the outermost pipeline of the pipeline grouping module, and the outer diameter D of the largest pipeline in the pipeline grouping module, R≥3D. Specifically, the single suspension beam 8 is an I-shaped track, the rollers 101 in the suspension sliding device 1 are in rolling cooperation with the I-shaped track; the single suspension beam 8 provides rigid support for the towing device 6 and the suspension sliding device 1 and plays a guiding role; the towing device 6 is located in front of the pipeline grouping module and is suspended on the single suspension beam 8, a driving motor is arranged on the towing device 6, the output end of the driving motor is connected with a roller, the roller is in rolling cooperation with the single suspension beam 8, the driving motor drives the roller to rotate, thereby realizing the movement of the towing device 6 on the single suspension beam 8, so that the towing device 6 can pull the suspension sliding device 1 to move; the towing device 6 is connected with the suspension sliding device 1 through a long strip-shaped thin steel plate. In this embodiment, one towing device 6 is arranged on the single suspension beam 8, the pipeline grouping modules are detachably connected through a third steel wire rope, the third steel wire rope connects the suspension sliding device 1 at the tail end in the front side pipeline grouping module and the suspension sliding device 1 at the head end in the rear side pipeline grouping module, and the towing device 6 is located in front of the frontmost pipeline grouping module, and each pipeline grouping module is pulled to move by the towing device 6.

[0038] In addition, a distance limiting assembly is arranged between the two adjacent suspension sliding devices 1 in the pipeline grouping module. The distance limiting assembly can be a limiting rod. The distance limiting assembly can limit the minimum distance between the two adjacent suspension sliding devices 1, thereby controlling the minimum radius of curvature of the pipeline 4 between the two adjacent suspension sliding devices 1. Specifically, when the pipeline grouping module is in the contracted state, R = 3D, the pipeline 4 is bent to the minimum value of the radius of curvature. At this time, the pipeline grouping module can avoid the case that the pipeline curvature radius is too small to cause a large pressure loss of the oil passing through the pipeline. At the same time, the pipeline grouping module occupies a small space, which is beneficial to the storage and extension of the pipeline grouping module. When the pipeline grouping module is in the extended state, R > 3D. The pressure loss of the oil passing through the bent part of the pipeline is small, and meanwhile, the pipeline is not limited by the space.

[0039] Further, a pulling force monitoring device 7 is arranged between the pulling device 6 and the suspension sliding device 1. In the embodiment, the pulling force monitoring device 7 is a pulling force gauge. The pulling force monitoring device 7 monitors the pulling force of the pulling device 6 in real time. Specifically, the pulling force required for the first steel wire rope 3 to be taut can be set as the threshold value of the pulling force monitoring device 7. When the pulling force monitoring device 7 detects that the pulling force reaches the threshold value, it indicates that the pipeline grouping module has been fully extended and unfolded. The pulling device 6 triggers automatic parking to prevent the pipeline 4 from being damaged due to excessive stretching, and to avoid potential risks such as mechanical jamming or abnormal load of the suspension sliding device 1, thereby effectively improving the safety of the telescopic pipeline grouping module in use.

[0040] Further, as shown in Figure 4 , Figure 5 , Figure 6 The brake device 9 includes a clamp 91 fixed on the inner wall of the tunnel, the tail end of the clamp 91 is hinged with a telescopic driving member, and the head end of the clamp 91 is provided with a brake block 93 for clamping the suspension sliding device 1. The clamp 91 is hoisted on the inner wall of the tunnel. The telescopic driving member is an oil cylinder 92 or an air cylinder 94. The two ends of the oil cylinder 92 or the air cylinder 94 are hingedly connected with the tail end of the clamp 91. The brake device 9 brakes the suspension sliding device 1 at the rear end of the telescopic pipeline grouping module. The brake device 9 cooperates with the pulling device 6 to completely unfold the telescopic pipeline grouping module, thereby realizing long-distance pipeline extension.

[0041] Further, the rollback device includes a winch 10 arranged at the rear end of the single hoisting beam 8. A second steel wire rope 11 is wound on the winch 10. The end of the second steel wire rope 11 is detachably connected with the suspension sliding device 1 at the front end of the pipeline grouping module. As shown in Figure 9As shown, winding the second steel wire rope 11 by the winch 10 will drive the front-end suspension sliding device 1 to retreat synchronously, the distance between each suspension sliding device 1 in the pipe grouping module is reduced, and the pipe 4 is automatically changed from the laid state to the curved state, realizing the retreat of the pipe grouping module.

[0042] In example 4, the difference from example 3 is that the pipe walking mechanism comprises a single beam 8, the pipe grouping module and the pulling device 6 are arranged on the single beam 8, and one pulling device 6 is arranged in front of each pipe grouping module, that is, one pulling device 6 pulls one pipe grouping module to move, so that each pipe grouping module moves in order, avoiding the case that the pulling force is too large when the pipe grouping module moves, reducing the load borne by the pulling device 6, and improving the safety of the pulling device 6.

[0043] In addition, the retreat device comprises a winch 10 arranged at the rear end of the single beam 8, the second steel wire rope 11 is wound around the winch 10, and the end of the second steel wire rope 11 is detachably connected with each pulling device 6. The pulling device 6 pushes the suspension sliding device 1 to move and shrink, and at this time, the push-pull force monitoring device 7 can detect and monitor the thrust force transmitted by the pulling device 6 to the suspension sliding device 1, and when the thrust force reaches a preset threshold value, it indicates that the pipe integrated grouping has been fully coiled.

[0044] When the pipe grouping module retreats: the gripper 91 of the brake device 9 clamps the suspension sliding device 1 at the tail end of the pipe grouping module to limit the position of the suspension sliding device 1, at this time, the winch 10 starts to wind the second steel wire rope 11, the second steel wire rope 11 pulls the pulling device 6 to retreat, the pulling device 6 pushes the distance between each suspension sliding device 1 in the pipe grouping module to shrink, realizing the shrinkage of the pipe grouping module; after the pipe grouping module is shrunk, the brake device 9 cancels the clamping and fixing of the pipe grouping module, and the shrunk pipe grouping module is detached from the single beam 8 for the retreat of the next pipe grouping module.

[0045] In example 5, on the basis of example 1, a pipe connection method of the pipe walking mechanism in the walking process, comprising a rear matching trolley 12, as shown in Figure 10 As shown, the rear matching trolley 12 is provided with a first liquid supply station 13 and a second liquid supply station 14, and a pressure limiting valve 16 is arranged on the liquid supply pipe of each of the first liquid supply station 13 and the second liquid supply station 14; the first liquid supply station 13 and the second liquid supply station 14 can supply liquid to the pipe 4, and the pressure limiting valve 16 is used to ensure the liquid pressure in the pipe during pipe connection, so as to ensure that the pipe supplying liquid to the tunneling host does not lose pressure during pipe connection, and ensure the safety during pipe connection.

[0046] Further, the liquid supply pipe of the first liquid supply station 13 and the second liquid supply station 14 is provided with a one-way valve 15. The one-way valve 15 is arranged between the pressure limiting valve 16 and the liquid supply station. When the air in the pipeline of the N+1 pipeline grouping module is discharged, the one-way valve can prevent the liquid medium of the first liquid supply station from entering the second liquid supply station through the pipeline, so that the liquid medium always flows away from the liquid supply station, and the safety of the liquid supply station is ensured.

[0047] In this embodiment, the first pipeline joint 51 is provided with three pipeline interfaces, and a gate valve is arranged at each pipeline interface position to control the opening and closing of each pipeline interface.

[0048] As shown in Figure 11 , before the pipeline connection, the first pipeline joint 51 of the N pipeline grouping module is communicated with the liquid supply pipe of the first liquid supply station 13, and the first liquid supply station 13 supplies liquid to the pipeline 4 of the N pipeline grouping module. The gate valves at the two pipeline interfaces where the liquid supply pipe and the pipeline 4 are connected on the first pipeline joint 51 are opened, the liquid supply pipe of the first liquid supply station 13 is opened, and the liquid medium in the first liquid supply station 13 enters the first pipeline joint 51 of the N pipeline grouping module in sequence through the one-way valve 15 and the pressure limiting valve 16, and then enters the pipeline 4 of the N pipeline grouping module, so that the first liquid supply station 13 can supply liquid.

[0049] During the pipeline connection, as shown in Figure 12 , the first pipeline joint 51 of the N+1 pipeline grouping module is communicated with the liquid supply pipe of the second liquid supply station 14, the second pipeline joint 52 of the N+1 pipeline grouping module is communicated with the first pipeline joint 51 of the N pipeline grouping module, and the first liquid supply station 13 simultaneously supplies liquid to the pipelines 4 of the N pipeline grouping module and the N+1 pipeline grouping module, and the air in the pipeline 4 of the N+1 pipeline grouping module is discharged through the pressure limiting valve 16 of the second liquid supply station 14. The flow direction of the liquid medium in the N+1 pipeline grouping module is from the first liquid supply station 13 to the second liquid supply station 14. The pressure limiting valve 16 of the second liquid supply station 14 is used to limit the pressure in the pipeline 4 of the N+1 pipeline grouping module, so that most of the liquid pressure delivered by the first liquid supply station 13 is used for liquid supply of the N pipeline grouping module, and the pipeline 4 of the N pipeline grouping module will not lose pressure, so that the pipeline connection can be carried out without stopping the main machine. At the same time, the one-way valve 15 of the second liquid supply station 14 can prevent the liquid medium in the pipeline 4 of the N+1 pipeline grouping module from entering the second liquid supply station 14.

[0050] After the pipeline connection, as shown in Figure 13As shown, after the liquid medium fills the pipeline 4 of the N+1 pipeline grouping module, the second liquid supply station 14 supplies liquid to the pipeline 4 of the N+1 pipeline grouping module and the N pipeline grouping module in turn, and then disconnects the first pipeline joint 51 of the N pipeline grouping module from the liquid supply pipe of the first liquid supply station 13. First, close the gate valve at the pipeline interface of the first pipeline joint 51 of the N pipeline grouping module for connecting the liquid supply pipe of the first liquid supply station 13, and then disconnect the first liquid supply station 13 from the N pipeline grouping module; at this time, the second liquid supply station 14 supplies liquid, and the liquid medium of the second liquid supply station 14 passes through the pipeline 4 of the N+1 pipeline grouping module and the N pipeline grouping module in turn.

[0051] In Example 6, on the basis of Example 5, a tunneling method includes a pipeline walking mechanism advancing process; the pulling device 6 on the single suspension beam 8 pulls the first suspension sliding device 1 in the pipeline grouping module to move forward, so that the pipeline 4 in the pipeline grouping module is unfolded or moved forward; after the pipeline 4 of the N pipeline grouping module on the single suspension beam 8 is completely unfolded, the N+1 pipeline grouping module is connected between the N pipeline grouping module and the rear matching trolley 12 using the pipeline connection method. When the pulling device 6 pulls the pipeline 4 in the pipeline grouping module to unfold and straighten, the brake device 9 on the single suspension beam 8 limits the movement of the last suspension sliding device 1 in the pipeline grouping module. As shown in Figure 8 As shown, the gripper 91 of the brake device 9 clamps the suspension sliding device 1 at the tail end of the pipeline grouping module, limits the position of the suspension sliding device 1, the pulling device 6 is started, the pulling device 6 pulls the suspension sliding device 1 at the front end of the pipeline grouping module to move on the single suspension beam 8, so that the pipeline 4 of the pipeline grouping module changes from a curved state to a laid state, realizing the unfolding of the pipeline grouping module; after the pipeline grouping module is unfolded, the brake device 9 cancels the clamping and fixing of the pipeline grouping module, the pulling device 6 pulls the pipeline grouping module to move forward on the single suspension beam 8, and then the next pipeline grouping module is installed on the single suspension beam 8, and the N+1 pipeline grouping module is connected between the N pipeline grouping module and the rear matching trolley 12 using the pipeline connection method, realizing the unfolding of the next pipeline grouping module.

[0052] Further, during the process of pulling the pipeline 4 in the pipeline grouping module to unfold and straighten by the pulling device 6, the push-pull force monitoring device 7 is used to monitor the pulling force of the pulling device 6 on the suspension sliding device 1 in real time, the tension required to tighten the first steel wire rope 3 is set as a threshold value, and when the pulling force reaches the threshold value, the pulling device 6 triggers autonomous parking and cancels the position limiting of the brake device 9 on the last suspension sliding device 1 in the pipeline grouping module. When the pulling force reaches the threshold value, the surface pipeline 4 is fully extended, effectively preventing damage to the pipeline 4 due to excessive stretching, while avoiding potential risks such as mechanical jamming or abnormal load of the suspension sliding device 1.

[0053] Further, the tunneling method further comprises a pipeline walking mechanism retreating process; the second steel wire rope 11 on the winch 10 is connected with the pulling device 6, the brake device 9 limits the last suspension sliding device 1 in the pipeline grouping module, the winch 10 is started, the winch 10 winds the second steel wire rope 11, the second steel wire rope 11 pulls the pulling device 6 to retreat on the single suspension beam 8, the pulling device 6 pushes each suspension sliding device 1 in the pipeline grouping module to approach each other, the pipeline 4 in the pipeline grouping module is contracted and folded, and the pipeline grouping module is disassembled and recycled at the tunnel entrance position. Specifically, as shown in the figure, the clamping device 91 of the brake device 9 clamps the suspension sliding device 1 at the tail end of the pipeline grouping module, and limits the position of the suspension sliding device 1, at this time, the winch 10 is started to wind the second steel wire rope 11, the second steel wire rope 11 pulls the suspension sliding device 1 at the front end of the pipeline grouping module to retreat, the distance between each suspension sliding device 1 in the pipeline grouping module is reduced, the pipeline 4 changes from the laid state to the curved and folded state, and the contraction of the pipeline grouping module is realized; after all the pipeline grouping modules are contracted, the brake device 9 cancels the clamping and fixing of the pipeline grouping module, and the contracted pipeline grouping module is disassembled from the single suspension beam 8 in turn. Figure 9

[0054] In addition, in the retreating process, the pushing and pulling force monitoring device 7 monitors the pushing force transmitted by the pulling device 6 in real time, when the pushing force reaches the preset threshold value, it indicates that the pipeline grouping module has been fully wound, at this time, the brake device 9 cancels the brake of the suspension sliding device 1 in the pipeline grouping module, and the contracted pipeline grouping module is disassembled from the single suspension beam 8.

[0055] The above only describes the preferred embodiments of the present application and is not used to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.​

Claims

1. A retractable pipeline grouping module, characterized in that, It includes at least one pipe (4), and multiple clamping devices (2) are provided at intervals along the length of the pipe (4). The clamping devices (2) are provided with a suspension sliding device (1). The two ends of the pipe (4) are respectively connected to a first pipe joint (51) and a second pipe joint (52). The first pipe joint (51) is provided with at least three pipe interfaces.

2. The retractable pipeline grouping module according to claim 1, characterized in that, A distance limiting component is provided between two adjacent suspension sliding devices (1); the distance limiting component includes a limit rod.

3. The retractable pipeline grouping module according to claim 2, characterized in that, The distance limiting component also includes a first wire rope (3), which is disposed between two adjacent suspension sliding devices (1), and the length of the first wire rope (3) is less than the natural extension length of the pipe (4) between the two adjacent suspension sliding devices (1).

4. The retractable pipeline grouping module according to any one of claims 1 to 3, characterized in that, The clamping device (2) includes a clamp bracket (21), which is provided with at least two connecting rods (23). Two oppositely arranged arc-shaped clamping parts are threaded onto the connecting rods (23), and clamping nuts (26) for fixing the arc-shaped clamping parts are threaded onto the connecting rods (23).

5. The retractable pipeline grouping module according to claim 4, characterized in that, An X-shaped clamp (22) is provided between the two arc-shaped clamping parts. The arc-shaped clamping parts and the X-shaped clamp (22) cooperate to clamp the pipeline (4). Guide ears (24) are provided on both the arc-shaped clamping parts and the X-shaped clamp (22). The connecting rod (23) passes through the guide hole on the guide ear (24).

6. The retractable pipeline grouping module according to claim 5, characterized in that, The fixture bracket (21) is provided with a limiting structure (25), the limiting mechanism (25) is provided with a limiting groove, and the guide ear (24) slides with the limiting groove.

7. The retractable pipeline grouping module according to claim 5 or 6, characterized in that, The suspension sliding device (1) includes two oppositely arranged roller frames (103), on which rollers (101) are rotatably connected, and the roller frames (103) are connected to the clamp bracket (21) via connecting rods (102).

8. A pipeline traveling mechanism, characterized in that, Includes the retractable pipeline grouping module as described in any one of claims 1 to 7, the pipeline grouping module is hoisted on a single lifting beam (8), the single lifting beam (8) is set along the tunnel extension direction, the single lifting beam (8) is provided with a towing device (6), a braking device (9) and a retraction device, the towing device (6) is located on the front side of the retractable pipeline grouping module, the towing device (6) is connected to the suspension sliding device (1) at the front end of the retractable pipeline grouping module; when the pipeline (4) in the pipeline grouping module is in a natural hanging state, the radius of curvature R of the outermost pipeline of the pipeline grouping module, the outer diameter of the pipeline with the largest diameter in the pipeline grouping module is D, and R≥3D.

9. The pipeline traveling mechanism according to claim 8, characterized in that, A push-pull force monitoring device (7) is provided between the towing device (6) and the suspension sliding device (1).

10. The pipeline traveling mechanism according to claim 9, characterized in that, The braking device (9) includes a clamp (91) installed on the inner wall of the tunnel. The tail end of the clamp (91) is hinged with a telescopic drive member, and the head end of the clamp (91) is provided with a brake block (93) for clamping the suspension sliding device (1).

11. The pipeline traveling mechanism according to claim 9 or 10, characterized in that, The retraction device includes a winch (10), which is located at the rear end of the single lifting beam (8). A second wire rope (11) is wound on the winch (10). The end of the second wire rope (11) is detachably connected to the suspension sliding device (1) at the front end of the telescopic pipeline grouping module, or the end of the second wire rope (11) is detachably connected to the towing device (6).

12. A method for connecting pipelines during the travel of a pipeline traveling mechanism as described in any one of claims 8 to 11, characterized in that, Includes a rear supporting trolley (12), on which a first liquid supply station (13) and a second liquid supply station (14) are provided, and pressure relief valves (16) are provided on the liquid supply pipes of the first liquid supply station (13) and the second liquid supply station (14). Before the pipeline is connected, the first pipeline connector (51) of the Nth pipeline grouping module is connected to the supply pipe of the first liquid supply station (13), and the first liquid supply station (13) supplies liquid to the pipeline (4) of the Nth pipeline grouping module. When the pipeline is connected, the first pipeline connector (51) of the N+1th pipeline grouping module is connected to the supply pipe of the second liquid supply station (14), the second pipeline connector (52) of the N+1th pipeline grouping module is connected to the first pipeline connector (51) of the Nth pipeline grouping module, the first liquid supply station (13) simultaneously supplies liquid to the pipelines (4) of the Nth pipeline grouping module and the N+1th pipeline grouping module, and discharges the air in the pipeline (4) of the N+1th pipeline grouping module through the pressure limiting valve (16) on the second liquid supply station (14); After the pipeline is connected, once the pipeline (4) of the N+1th pipeline grouping module is filled with liquid medium, the second liquid supply station (14) supplies liquid to the pipeline (4) of the N+1th pipeline grouping module and the Nth pipeline grouping module in sequence, and then disconnects the first pipeline connector (51) of the Nth pipeline grouping module from the liquid supply pipe on the first liquid supply station (13).

13. The pipeline connection method according to claim 12, characterized in that, One-way valves (15) are installed on the supply pipes of the first liquid supply station (13) and the second liquid supply station (14).

14. A tunneling method, characterized in that, The process includes the forward movement of the pipeline traveling mechanism; the braking device (9) on the single lifting beam (8) restricts the movement of the last suspension sliding device (1) in the pipeline grouping module, and the dragging device (6) on the single lifting beam (8) pulls the first suspension sliding device (1) in the pipeline grouping module forward, so that the pipeline (4) in the pipeline grouping module unfolds and straightens; after the pipeline (4) of the Nth pipeline grouping module on the single lifting beam (8) is fully unfolded, the pipeline connection method as described in claim 12 or 13 is used to connect the N+1th pipeline grouping module between the Nth pipeline grouping module and the rear matching trolley (12).

15. The tunneling method according to claim 14, characterized in that, During the process of the towing device (6) pulling the pipeline (4) in the pipeline grouping module to unfold and straighten, the push-pull force monitoring device (7) monitors the towing force of the towing device (6) on the suspension sliding device (1) in real time, sets the required tension of the first wire rope (3) as the threshold, and when the towing force is detected to reach the threshold, the towing device (6) triggers autonomous parking and cancels the limit of the braking device (9) on the last suspension sliding device (1) in the pipeline grouping module.

16. The tunneling method according to claim 14, characterized in that, It also includes the process of the pipeline traveling mechanism retracting; the second wire rope (11) on the winch (10) is connected to the towing device (6), and the braking device (9) limits the last suspension sliding device (1) in the pipeline grouping module; the winch (10) is started, the winch (10) winds up the second wire rope (11), the second wire rope (11) pulls the towing device (6) to retract on the single lifting beam (8), the towing device (6) pushes each suspension sliding device (1) in the pipeline grouping module to move closer to each other, the pipeline (4) in the pipeline grouping module is retracted and folded, and the pipeline grouping module is disassembled and recycled at the tunnel entrance.

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