Roadheader Drain Pipe Extension Device and Method

Abstract

The present invention discloses an extension device and method for the drainage pipe of a roadheader, which relates to the technical field of tunnel construction equipment. The extension device for the drainage pipe of a roadheader includes a vehicle frame and two drainage assemblies. Each drainage assembly includes a fixed frame, a drainage hose, and a reel assembly. The fixed frame is fixedly connected to the vehicle frame. The reel assembly can move back and forth on the fixed frame along the direction parallel to the tunneling direction, and the central axis of the reel assembly is perpendicular to the tunneling direction. The middle part of the drainage hose bypasses the front end of the reel assembly, and the two parts of the drainage hose that bypass the reel assembly and extend backward respectively form a water inlet part and a water outlet part. The fixed frames of the two drainage assemblies are arranged side by side in the vehicle frame along the direction perpendicular to the tunneling direction. By using the two drainage assemblies for drainage, two different pipe replacement and extension operations of synchronization and step-by-step can be adopted according to needs, which are respectively adapted to water-poor strata and water-rich strata, and are suitable for strata with different water contents, and have good adaptability.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel construction equipment, and particularly relates to an extension device and method for the drain pipe of a tunneling machine. Background Art

[0002] As a safe and efficient tunnel construction equipment, a tunneling machine is widely used in the field of tunnel construction. When the tunneling machine advances forward, as the length of the tunnel increases, the rigid drain pipe is inextensible and has been fixed to the inner wall of the tunnel. To compensate for the required length of the drainage pipeline, a pipeline extension device must be used.

[0003] For the existing pipeline extension devices, their working principle is to utilize the telescopic performance of hoses or piston pipes to compensate for the pipeline length required for pipeline extension. However, all existing pipeline extension devices are installed in a way of pipe-breaking extension, that is, closing both sides of the pipe, and then replacing the pipe to connect both sides of the original pipeline to achieve the extension purpose. When extending the pipe in this way of replacing the pipe, it is impossible to continuously discharge the muddy water constantly gushing out from the tunneling face, and the adaptability is poor. Especially when the tunneling machine passes through a water-rich stratum, when applying this kind of pipeline extension device, if the drainage is not smooth, it is very easy to cause serious water accumulation in the tunnel, greatly reducing the safety of tunnel construction and the tunneling efficiency.

[0004] Therefore, how to provide an extension device with better adaptability is a technical problem that those skilled in the art need to solve at present. Summary of the Invention

[0005] In view of this, an object of the present invention is to provide an extension device for the drain pipe of a tunneling machine, which has better adaptability. Another object of the present invention is to provide a method for extending the drain pipe of a tunneling machine using the above-mentioned extension device for the drain pipe of a tunneling machine, which has better adaptability.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] An extension device for the drain pipe of a tunneling machine includes a frame and two drainage components;

[0008] Each of the drainage components includes a fixed frame, a drainage hose, and a reel assembly; the fixed frame is fixedly connected to the frame, the reel assembly can move back and forth on the fixed frame in a direction parallel to the tunneling direction, the central axis of the reel assembly is perpendicular to the tunneling direction, the middle part of the drainage hose bypasses the front end of the reel assembly, and the two parts of the drainage hose that bypass the reel assembly and extend backward respectively form a water inlet part and a water outlet part;

[0009] The fixed frames of the two drainage components are arranged in parallel in the frame in a direction perpendicular to the tunneling direction.

[0010] Preferably, a guide rail is provided on the fixed frame, and a traveling wheel cooperating with the guide rail is provided on the reel assembly, so that the guide rail guides the traveling wheel along the tunneling direction.

[0011] Preferably, a pulley is provided on the outer periphery of the reel assembly, and the drainage hose is pressed against the pulley, so that when the drainage hose moves relative to the reel assembly, the pulley rotates self - driven.

[0012] Preferably, the drainage assembly further includes a drainage elbow; the port of the water inlet part is connected to one port of the drainage elbow, and the other port of the drainage elbow extends upward outside the vehicle frame.

[0013] Preferably, a pipe storage rack fixed to the vehicle frame is further included.

[0014] Preferably, a pipe crane guide rail and a pipe crane are further included in the vehicle frame. The pipe crane guide rail is fixed to the top of the vehicle frame, the pipe crane is connected to the pipe crane guide rail, the pipe crane can move along the tunneling direction and the direction perpendicular to the tunneling direction and parallel to the horizontal direction on the pipe crane guide rail, and the pipe crane can drive the pipe for pipe replacement to move between the pipe storage rack and the port of the water outlet part.

[0015] Preferably, in the drainage assembly, a winch fixed to the front end of the fixed frame is further included, and the winch is connected to the reel assembly through a wire rope assembly.

[0016] A method for extending the drainage pipe of a tunneling machine, which applies the above - mentioned tunneling machine drainage pipe extension device. The two drainage assemblies are respectively a first drainage assembly and a second drainage assembly. The water inlet of the first drainage assembly, the water inlet of the second drainage assembly and the tunneling machine water outlet pipeline are respectively connected to three interfaces of a tee structure. The first drainage assembly and the second drainage assembly are respectively connected with corresponding sewage pumps. The water outlet of the first drainage assembly and the water outlet of the second drainage assembly are respectively connected to the tunnel pipeline in the tunnel;

[0017] The extension method includes: during the process that the tunneling machine drives the vehicle frame to move forward along the tunneling direction, in the drainage assembly, when the reel assembly is located at the rear part of the fixed frame, a pipe replacement operation is carried out on the corresponding drainage assembly;

[0018] Wherein, during the process that the tunneling machine drives the vehicle frame to move forward, under the restriction of the tunnel pipeline, the reel assembly moves backward relative to the vehicle frame;

[0019] Among them, the pipe replacement operation includes: controlling the roadheader to stop advancing, closing the sewage pump corresponding to the drainage component where the pipe replacement operation needs to be performed, disconnecting the connection between the water outlet of the drainage component and the tunnel pipeline, controlling the reel assembly to move forward to the front of the corresponding fixed frame, connecting a replacement pipe between the water outlet of the drainage component and the tunnel pipeline, and after connection, using the outlet of the replacement pipe as the current water outlet of the drainage component.

[0020] Preferably, in the first drainage component, the reel assembly is the first reel assembly, the fixed frame is the first fixed frame, the sewage pump correspondingly connected to the first drainage component is the first sewage pump, in the second drainage component, the reel assembly is the second reel assembly, the fixed frame is the second fixed frame, and the sewage pump correspondingly connected to the second drainage component is the second sewage pump;

[0021] During the tunneling process of the roadheader through the water-rich stratum, the extension method includes;

[0022] In the initial state, the first reel assembly is located at the front of the first fixed frame, and the second reel assembly is located in the middle of the second fixed frame;

[0023] Control the roadheader to advance forward and turn on the first sewage pump and the second sewage pump;

[0024] When the first reel assembly is located in the middle of the first fixed frame and the second reel assembly is located at the rear of the second fixed frame, control the second reel assembly to perform the pipe replacement operation, and then control the roadheader to continue advancing and turn on the second sewage pump;

[0025] When the first reel assembly is located at the rear of the first fixed frame and the second reel assembly is located in the middle of the second fixed frame, control the first reel assembly to perform the pipe replacement operation, and then control the roadheader to continue advancing and turn on the first sewage pump.

[0026] Preferably, during the tunneling process of the roadheader through the water-poor stratum, the extension method includes;

[0027] In the initial state, the reel assemblies in both drainage components are located at the front of the corresponding fixed frames;

[0028] Control the roadheader to advance forward and turn on both sewage pumps;

[0029] When both reel assemblies are located at the rear of the corresponding fixed frames, control both drainage components to perform the pipe replacement operation, and then control the roadheader to continue advancing and turn on both sewage pumps.

[0030] The tunneling machine drain pipe extension device provided by the present invention includes a vehicle frame and two drainage components. Each drainage component includes a fixed frame, a drainage hose, and a reel assembly. The fixed frame is fixedly connected to the vehicle frame. The reel assembly can move back and forth on the fixed frame in a direction parallel to the tunneling direction. The central axis of the reel assembly is perpendicular to the tunneling direction. The middle part of the drainage hose bypasses the front end of the reel assembly. The two parts of the drainage hose that bypass the reel assembly and extend backward respectively form a water inlet part and a water outlet part. The fixed frames of the two drainage components are arranged side by side in the vehicle frame in a direction perpendicular to the tunneling direction.

[0031] By draining through two drainage components, the two drainage components can be disconnected simultaneously for simultaneous pipe replacement operations, or the two drainage components can be alternately disconnected and alternately perform pipe replacement operations, so that there is always one drainage component in a connected state. The extension device can continuously drain water, that is, two different pipe replacement and extension operations of synchronization and step-by-step can be adopted according to needs, respectively adapting to water-poor strata and water-rich strata, adapting to strata with different water contents, having good adaptability, improving the adaptability and robustness of the pipeline extension device, and increasing the safety and efficiency of tunneling construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0033] Figure 1 It is a schematic structural diagram of the first specific embodiment of the tunneling machine drain pipe extension device provided by the present invention;

[0034] Figure 2 For Figure 1 The A-A sectional view of.

[0035] Reference numerals:

[0036] Front vehicle frame 1;

[0037] Fixed frame 2, first fixed frame 2A, second fixed frame 2B;

[0038] Reel assembly 3, first reel assembly 3A, second reel assembly 3B;

[0039] Drainage hose 4, first drainage hose 4A, second drainage hose 4B, water inlet part 41, water outlet part 42;

[0040] Double pipe joint 5;

[0041] Drain elbow 6, first drain elbow 6A, second drain elbow 6B;

[0042] Pipe crane guide rail 7;

[0043] Pipe crane 8;

[0044] Pipe storage rack 9;

[0045] Wire rope assembly 10;

[0046] Winch 11;

[0047] Rear frame 12;

[0048] Driving direction X. Detailed implementation mode

[0049] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0050] The core of the present invention is to provide an extension device for the drain pipe of a tunneling machine, which has good adaptability. Another core of the present invention is to provide a method for extending the drain pipe of a tunneling machine using the above extension device for the drain pipe of a tunneling machine, which has good adaptability.

[0051] The extension device for the drain pipe of the tunneling machine provided by the present invention is specifically applied to a TBM. In the first specific embodiment, please refer to Figures 1 to 2 , which includes a frame and two drainage components. Among them, in this embodiment, the driving direction X corresponds to the front, that is, the advancing direction of the tunneling machine, and the opposite direction of the driving direction X is the rear.

[0052] Each drainage component includes a fixed frame 2, a drainage hose 4, and a reel assembly 3. The fixed frame 2 is fixedly connected to the frame. Optionally, the frame includes a front frame 1 and a rear frame 12 that are sequentially connected from front to back. Specifically, the fixed frame 2 is fixed in the front frame 1. The reel assembly 3 can move back and forth on the fixed frame 2 along a direction parallel to the driving direction X. The central axis of the reel assembly 3 is perpendicular to the driving direction X, and more specifically, parallel to the horizontal direction. The middle part of the drainage hose 4 bypasses the front end of the reel assembly 3. The two parts of the drainage hose 4 that bypass the reel assembly 3 and extend backward respectively form a water inlet part 41 and a water outlet part 42. Specifically, the water inlet part 41 extends backward above the reel assembly 3, and the water outlet part 42 extends backward below the reel assembly 3.

[0053] The fixing frames 2 of the two drainage assemblies are arranged side by side in the vehicle frame perpendicular to the tunneling direction X. Specifically, the two fixing frames 2 are arranged side by side in the horizontal direction.

[0054] Specifically, the two drainage assemblies are respectively the first drainage assembly and the second drainage assembly. In the first drainage assembly, the reel assembly 3 is the first reel assembly 3A, the fixing frame 2 is the first fixing frame 2A, and the drainage hose 4 is the first drainage hose 4A; in the second drainage assembly, the reel assembly 3 is the second reel assembly 3B, the fixing frame 2 is the second fixing frame 2B, and the drainage hose 4 is the second drainage hose 4B.

[0055] In application, the ports of the water inlet parts 41 of the drainage hoses 4 of the two drainage assemblies are connected to the tunneling machine outlet pipeline, and the ports of the water outlet parts 42 are both connected to the in-tunnel pipeline in the tunnel. The in-tunnel pipeline leads to the outside of the tunnel to drain water through the in-tunnel pipeline.

[0056] By draining water through the two drainage assemblies, the two drainage assemblies can be disconnected simultaneously to perform the pipe replacement operation simultaneously, or the two drainage assemblies can be disconnected alternately and the pipe replacement operation can be performed alternately, so that there is always one drainage assembly in a connected state. Using this extension device can continuously drain water, that is, two different pipe replacement and extension operations of synchronization and step-by-step can be adopted according to needs, respectively adapting to water-poor strata and water-rich strata, adapting to strata with different water contents, having good adaptability, improving the adaptability and robustness of the pipeline extension device, and increasing the safety and efficiency of tunneling construction.

[0057] Furthermore, guide rails are provided on the fixing frame 2, and traveling wheels are provided on the reel assembly 3 and are connected in cooperation with the guide rails, so that the guide rails guide the traveling wheels along the tunneling direction X. Optionally, the traveling wheels are arranged at both ends in the axial direction of the reel assembly 3. Correspondingly, the guide rails are arranged on the side walls of the fixing frame 2. Through the cooperation of the traveling wheels and the guide rails, the smooth movement of the reel assembly 3 on the fixing frame 2 can be ensured.

[0058] Furthermore, pulleys are provided on the outer periphery of the reel assembly 3, and the drainage hose 4 is pressed against the pulleys, so that when the drainage hose 4 moves relative to the reel assembly 3, the pulleys are driven to rotate. Specifically, when the reel assembly 3 moves forward on the fixing frame 2, the drainage hose 4 moves along the outer periphery of the reel assembly 3. At this time, these pulleys are equivalent to the circumferential surface of the reel assembly 3, so that when the drainage hose 4 moves, the rolling friction between the pulleys and the drainage hose 4 can reduce the wear of the drainage hose 4 and extend the service life of the drainage hose 4.

[0059] Further, the drainage assembly further includes a drainage elbow 6 to adapt to the water inlet direction. Among them, in the first drainage assembly, the drainage elbow 6 is the first drainage elbow 6A, and in the second drainage assembly, the drainage elbow 6 is the second drainage elbow 6B. The port of the water inlet part 41 is connected to one port of the drainage elbow 6, and the other port of the drainage elbow 6 extends upward outside the frame, specifically extending out of the frame from the upper side. When the drainage assembly drains water, the water enters the drainage elbow 6, flows through the water inlet part 41 of the drainage hose 4 to the water outlet part 42, and then is discharged through the port of the water outlet part 42. After connecting the pipe changing pipeline to the port of the water outlet part 42, it further flows out through the outlet of the pipe changing pipeline.

[0060] Specifically, the double pipe joint 5 is fixed to the upper part of the fixed frame 2. The drainage elbow 6 is arranged on the upper part of the fixed frame 2 and fixedly connected to the double pipe joint 5. The double pipe joint 5 is also connected to the drainage hose 4 to realize the connection between the drainage elbow 6 and the drainage hose 4. The other end of the drainage elbow 6 is fixedly connected to the water outlet pipeline of the shield machine.

[0061] Further, the extension device further includes a pipe storage rack 9 fixed to the frame. The pipe storage rack 9 can be used to store the pipe changing pipeline. Specifically, in Figure 2 this orientation, the pipe storage rack 9 is arranged on the right wall of the rear frame 12.

[0062] Further, the extension device further includes a pipe crane guide rail 7 and a pipe crane 8 arranged in the frame. The pipe crane guide rail 7 is fixed to the top of the frame. Specifically, the pipe crane guide rail 7 and the pipe crane 8 are arranged on the top of the rear frame 12. The pipe crane 8 is connected to the pipe crane guide rail 7. The pipe crane 8 can move on the pipe crane guide rail 7 along the tunneling direction X and in the direction perpendicular to the tunneling direction X and parallel to the horizontal direction, that is, move back and forth in the tunneling direction X and left and right in the tunnel cross-section direction. The pipe crane 8 can drive the pipe changing pipeline to move between the pipe storage rack 9 and the port of the water outlet part 42, which can improve the automation degree of pipe changing.

[0063] Further, in the drainage assembly, there is also a winch 11 fixed to the front end of the fixed frame 2. The winch 11 is connected to the reel assembly 3 through a wire rope assembly 10. In the drainage assembly, the wire rope assembly 10 is connected to the reel assembly 3 to adjust the front and rear positions of the reel assembly 3 in the fixed frame 2. When it is necessary to move the reel assembly 3 forward in the fixed frame 2, it can be realized by driving the corresponding wire rope assembly 10 through the winch 11, which is convenient to operate.

[0064] Specifically, in Figure 2 this orientation, the winch 11 is arranged on the left wall of the front frame 1. Among them, in the first drainage assembly, the winch 11 is the first winch, and the wire rope assembly 10 is the first wire rope assembly; in the second drainage assembly, the winch 11 is the second winch, and the wire rope assembly 10 is the second wire rope assembly.

[0065] For the method of extending the drain pipe of the roadheader in this embodiment, the working process can refer to the following implementation manners:

[0066] Embodiment 1:

[0067] When the roadheader crosses the water-rich stratum, an uninterrupted drainage and pipe replacement extension cycle method is adopted, which is completed in four steps to continuously drain and replace the pipe of the drain pipe.

[0068] The first step, that is, the initial state. The first reel assembly 3A is located at the front of the first fixed frame 2A, the second reel assembly 3B is located in the middle of the second fixed frame 2B. The first drain hose 4A and the second drain hose 4B have corresponding lengths. Start the first sewage pump connected to the front end of the first drainage assembly and the second sewage pump connected to the front end of the second drainage assembly. The first drainage assembly and the second drainage assembly drain water simultaneously.

[0069] The second step, the roadheader advances forward, the pipes in the tunnel remain stationary, and the reel assembly 3 moves backward relative to the vehicle frame. Among them, the first reel assembly 3A moves to the middle of the first fixed frame 2A, the second reel assembly 3B moves to the rear of the second fixed frame 2B. The second sewage pump is turned off, the second drain hose 4B is disconnected from the drain pipe leading to the outside of the tunnel, and the second reel assembly 3B is pulled to the front of the second fixed frame 2B by the second winch 11 through the second wire rope assembly 10. The pipe in the pipe storage rack 9 is hoisted by the pipe crane 8 for pipe replacement and extension. The first drainage assembly is in a connected state and keeps draining water.

[0070] The third step, after resuming tunneling, the first reel assembly 3A moves to the rear of the first fixed frame 2A, the second reel assembly 3B moves to the middle of the second fixed frame 2B. The first sewage pump is turned off, the first drain hose 4A is disconnected from the drain pipe leading to the outside of the tunnel, and the first reel assembly 3A is pulled to the front of the first fixed frame 2A by the first winch 11 through the first wire rope assembly 10. The pipe in the pipe storage rack 9 is hoisted by the pipe crane 8 for pipe replacement and extension. The second drainage assembly drains water continuously.

[0071] The fourth step, the first reel assembly 3A and the second reel assembly 3B enter the initial state, start the two-way sewage pumps at the front end, and the first drainage assembly and the second drainage assembly drain water to complete the uninterrupted drainage and pipe replacement extension cycle step.

[0072] Embodiment 2:

[0073] When the roadheader crosses the water-poor stratum, an intermittent drainage and pipe replacement extension cycle method is adopted, and the synchronous pipe replacement extension of the two drainage assemblies can be completed.

[0074] In the first step, i.e., the initial state, the first reel assembly 3A is located at the front of the first fixed frame 2A, and the second reel assembly 3B is located at the front of the second fixed frame 2B. Start the first sewage pump connected to the front end of the first drainage assembly and the second sewage pump connected to the front end of the second drainage assembly, and the first drainage assembly and the second drainage assembly drain water simultaneously.

[0075] In the second step, the tunneling machine advances forward. The pipelines in the tunnel remain stationary, and the reel assemblies 3 retreat relative to the vehicle frame. The first reel assembly 3A and the first drainage hose 4A, and the second reel assembly 3B and the second drainage hose 4B are passively moved to the rear of the first fixed frame 2A and the second fixed frame 2B. The tunneling machine stops advancing, and the two sewage pumps are turned off. The first drainage hose 4A and the second drainage hose 4B are disconnected from the drainage pipelines leading to the outside of the tunnel. The first winch 11 pulls the first wire rope assembly 10, and at the same time, the second winch 11 pulls the second wire rope assembly 10, so that the first reel assembly 3A and the second reel assembly 3B are synchronously moved to the front of the corresponding fixed frame 2. The pipeline crane 8 hoists the pipelines in the pipeline storage rack 9, and the pipe replacement and extension of the two drainage assemblies are carried out synchronously to complete the intermittent drainage pipe replacement and extension cycle step.

[0076] Compared with the first embodiment, the cycle step in the second embodiment can achieve twice the pipe replacement and extension interval, thereby improving the tunneling efficiency in water-poor strata.

[0077] The step-by-step drainage pipe extension device of the present invention, through two sets of independent drainage assemblies, can adapt to strata with different water contents, adopt two different pipe replacement and extension steps, and improve the adaptability and robustness of the drainage pipe extension system. In water-rich strata, an uninterrupted drainage pipe replacement and extension cycle step is adopted. When one drainage assembly needs to replace and extend the pipe, the other drainage assembly can continuously drain water, ensuring the uninterrupted drainage function of the tunneling machine during tunneling, effectively preventing low drainage efficiency during tunnel construction, accelerating the tunneling efficiency in water-rich strata, greatly improving the automation degree and construction efficiency of the equipment, keeping the drainage unobstructed, improving the reliability of the drainage pipe extension device, and improving the construction safety of the tunneling machine passing through the water seepage section. In water-poor strata, an intermittent drainage pipe replacement and extension cycle step is adopted, which can achieve twice the pipe replacement and extension interval for pipe replacement and extension, improving the tunneling efficiency in water-poor strata. In addition, when one set of drainage assemblies fails, the other set of drainage assemblies can complete the pipe replacement and extension operation, improving the construction safety of the tunneling machine passing through the water seepage section and the reliability of the drainage pipe extension device.

[0078] In addition to the above-mentioned tunneling machine drainage pipe extension device, the present invention also provides a tunneling machine drainage pipe extension method. The tunneling machine drainage pipe extension method can specifically apply the tunneling machine drainage pipe extension device provided in any of the above embodiments, and the beneficial effects can be correspondingly referred to each of the above embodiments.

[0079] Among them, on the drainage pipe extension device of the roadheader, the water inlet of the first drainage assembly, the water inlet of the second drainage assembly (in this embodiment, the ports of the first drainage elbow 6A and the second drainage elbow 6B respectively), and the roadheader outlet water pipeline are respectively connected to the three interfaces of a tee structure. The first drainage assembly and the second drainage assembly are respectively connected with corresponding sewage pumps. Specifically, the first drainage assembly is connected to the first sewage pump, and the second drainage assembly is connected to the second sewage pump. The water outlets of the first drainage assembly and the second drainage assembly (in this embodiment, the ports of the first drainage hose and the second drainage hose before connecting to the pipe-changing pipeline, or the ports of the pipe-changing pipeline after connecting to the pipe-changing pipeline) are respectively connected to the tunnel pipeline in the tunnel.

[0080] Specifically, the extension method includes: during the process of the roadheader driving the vehicle frame to advance along the driving direction X, in the drainage assembly, when the reel assembly 3 is located at the rear of the fixed frame 2, a pipe-changing operation is performed on the corresponding drainage assembly.

[0081] Among them, during the process of the roadheader driving the vehicle frame to advance, under the restriction of the tunnel pipeline, the reel assembly 3 moves in the direction relative to the vehicle frame backward.

[0082] Among them, the pipe-changing operation includes: controlling the roadheader to stop advancing, closing the sewage pump corresponding to the drainage assembly that needs to perform the pipe-changing operation, disconnecting the connection between the water outlet of the drainage assembly and the tunnel pipeline, controlling the reel assembly 3 to move forward to the front of the corresponding fixed frame 2, connecting a pipe-changing pipeline between the water outlet of the drainage assembly and the tunnel pipeline, and after connection, using the outlet of the pipe-changing pipeline as the water outlet of the current drainage assembly.

[0083] Furthermore, during the tunneling process of the roadheader passing through the water-rich stratum, the extension method includes:

[0084] In the initial state, the first reel assembly 3A is located at the front of the first fixed frame 2A, and the second reel assembly 3B is located in the middle of the second fixed frame 2B.

[0085] Control the roadheader to advance forward and turn on the first sewage pump and the second sewage pump.

[0086] When the first reel assembly 3A is located in the middle of the first fixed frame 2A and the second reel assembly 3B is located at the rear of the second fixed frame 2B, control the second reel assembly 3B to perform a pipe-changing operation, and then, control the roadheader to continue to advance and turn on the second sewage pump.

[0087] When the first reel assembly 3A is located at the rear of the first fixed frame 2A and the second reel assembly 3B is located in the middle of the second fixed frame 2B, control the first reel assembly 3A to perform a pipe-changing operation, and then, control the roadheader to continue to advance and turn on the first sewage pump.

[0088] Furthermore, during the tunneling process of the tunneling machine through water-poor strata, the extension method includes:

[0089] In the initial state, the reel assemblies 3 in both drainage assemblies are located at the front parts of the corresponding fixed frames 2.

[0090] Control the tunneling machine to advance forward and turn on the two sewage pumps.

[0091] When the two reel assemblies 3 are located at the rear parts of the corresponding fixed frames 2, control the two drainage assemblies to perform pipe replacement operations. After that, control the tunneling machine to continue to advance and turn on the two sewage pumps.

[0092] It should be noted that when an element is referred to as "fixing" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. In addition, in the description of the present invention, unless otherwise stated, the meanings of "a plurality of", "multiple roots", and "multiple groups" are two or more.

[0093] The orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features.

[0094] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0095] The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The same or similar parts among the various embodiments can be referred to each other.

[0096] The above has introduced in detail the roadheader drain pipe extension device and method provided by the present invention. Specific examples are used in this article to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can still be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. An extension device for the drain pipe of a roadheader, characterized in that, It includes a frame and two drainage components; each of the drainage components includes a fixed frame (2), a drainage hose (4) and a reel assembly (3); the fixed frame (2) is fixedly connected to the frame, the reel assembly (3) can move back and forth on the fixed frame (2) in a direction parallel to the tunneling direction (X), the central axis of the reel assembly (3) is perpendicular to the tunneling direction (X), the middle part of the drainage hose (4) bypasses the front end of the reel assembly (3), and the two parts of the drainage hose (4) that bypass the reel assembly (3) and extend backward respectively form a water inlet part (41) and a water outlet part (42); the fixed frames (2) of the two drainage components are arranged side by side in the frame perpendicular to the tunneling direction (X); The two drainage components are respectively a first drainage component and a second drainage component, and corresponding sewage pumps are respectively connected to the first drainage component and the second drainage component; in the first drainage component, the reel assembly (3) is a first reel assembly (3A), the fixed frame (2) is a first fixed frame (2A), the sewage pump corresponding to the first drainage component is a first sewage pump, in the second drainage component, the reel assembly (3) is a second reel assembly (3B), the fixed frame (2) is a second fixed frame (2B), and the sewage pump corresponding to the second drainage component is a second sewage pump; The tunneling machine drain pipe extension device is applied to a tunneling machine drain pipe extension method, and the extension method includes: during the process that the tunneling machine drives the frame to move forward along the tunneling direction (X), in the drainage component, when the reel assembly (3) is located at the rear of the fixed frame (2), a pipe changing operation is performed on the corresponding drainage component; during the process that the tunneling machine drives the frame to move forward, under the restriction of the tunnel pipe, the reel assembly (3) moves backward relative to the frame; the pipe changing operation includes: controlling the tunneling machine to stop moving forward, closing the sewage pump corresponding to the drainage component that needs to perform the pipe changing operation, disconnecting the connection between the water outlet of the drainage component and the tunnel pipe, controlling the reel assembly (3) to move forward to the front of the corresponding fixed frame (2), connecting a pipe changing pipe between the water outlet of the drainage component and the tunnel pipe, and after connection, using the outlet of the pipe changing pipe as the current water outlet of the drainage component; During the tunneling process of the tunneling machine through the water-rich stratum, the extension method includes: In the initial state, the first reel assembly (3A) is located at the front of the first fixed frame (2A), and the second reel assembly (3B) is located in the middle of the second fixed frame (2B); Control the tunneling machine to advance forward and turn on the first sewage pump and the second sewage pump; When the first reel assembly (3A) is located in the middle of the first fixed frame (2A) and the second reel assembly (3B) is located at the rear of the second fixed frame (2B), control the second reel assembly (3B) to perform the pipe replacement operation, and then control the tunneling machine to continue to advance and turn on the second sewage pump; When the first reel assembly (3A) is located at the rear of the first fixed frame (2A) and the second reel assembly (3B) is located in the middle of the second fixed frame (2B), control the first reel assembly (3A) to perform the pipe replacement operation, and then control the tunneling machine to continue to advance and turn on the first sewage pump; During the tunneling process of the tunneling machine through the water-poor stratum, the extension method includes: In the initial state, the reel assemblies (3) in both of the two drainage assemblies are located at the front of the corresponding fixed frames (2); Control the tunneling machine to advance forward and turn on the two sewage pumps; When the two reel assemblies (3) are located at the rear of the corresponding fixed frames (2), control the two drainage assemblies to perform the pipe replacement operation, and then control the tunneling machine to continue to advance and turn on the two sewage pumps.

2. The extension device for the drainage pipe of the roadheader according to claim 1, wherein, The fixed frame (2) is provided with guide rails, and the reel assembly (3) is provided with running wheels that are cooperatively connected with the guide rails, so that the guide rails guide the running wheels along the tunneling direction (X).

3. The drainage pipe extension device of the roadheader according to claim 1, characterized in that, The outer periphery of the reel assembly (3) is provided with pulleys, and the drainage hose (4) is pressed against the pulleys, so that when the drainage hose (4) moves relative to the reel assembly (3), it drives the pulleys to rotate selflessly.

4. The drainage pipe extension device of the roadheader according to claim 1, characterized in that, The drainage assembly further includes a drainage elbow (6); The port of the water inlet part (41) is connected to one port of the drainage elbow (6), and the other port of the drainage elbow (6) extends upward outside the vehicle frame.

5. The drain pipe extension device of the roadheader according to claim 1, characterized in that, It further includes a pipe storage rack (9) fixed to the vehicle frame.

6. The drain pipe extension device of the roadheader according to claim 5, characterized in that, It further includes a pipe crane guide rail (7) and a pipe crane (8) arranged in the vehicle frame. The pipe crane guide rail (7) is fixed to the top of the vehicle frame, and the pipe crane (8) is connected to the pipe crane guide rail (7). The pipe crane (8) can move along the tunneling direction (X) and in the direction perpendicular to the tunneling direction (X) and parallel to the horizontal direction on the pipe crane guide rail (7). The pipe crane (8) can drive the pipe replacement pipe to move between the pipe storage rack (9) and the port of the water outlet part (42).

7. The extension device for the drain pipe of the roadheader according to any one of claims 1 to 6, characterized in that, In the drainage assembly, it further includes a winch (11) fixed to the front end of the fixed frame (2), and the winch (11) is connected to the reel assembly (3) through a wire rope assembly (10).

8. A method for extending the drainage pipe of a roadheader, characterized in that, When applying the drain pipe extension device of the roadheader according to any one of claims 1 to 7, the water inlet of the first drainage component, the water inlet of the second drainage component and the roadheader water outlet pipeline are respectively connected to three interfaces of a tee structure, and the water outlet of the first drainage component and the water outlet of the second drainage component are respectively connected to a tunnel pipeline in the tunnel.

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