Improved shield muck anti-blocking device

Abstract

The utility model relates to the technical field of shield muck anti-blocking devices, and discloses an improved shield muck anti-blocking device which comprises a conveying pipe, a first servo motor is arranged in the middle of the end face of one side of the conveying pipe, and the output end of the first servo motor extends into the conveying pipe and is fixedly connected with a conveying auger. And connecting frames are fixedly connected to the upper end and the lower end of the exterior of the conveying pipe, a threaded rod is rotationally connected to the interior of the connecting frame at the upper end, a threaded cylinder is arranged on one side of the exterior of the threaded rod in a threaded mode, and a sliding frame is fixedly connected to the upper end of the threaded cylinder. According to the device, through the synergistic effect of conveying of the conveying auger and knocking of the moving cam and the combination of forward thrust and crushing force, accumulated muck is effectively scattered, the blocking trend is destroyed, the blocking frequency and severity of the spiral conveyor are remarkably reduced, the shutdown cleaning time is shortened, the shield tunneling continuity is guaranteed, and the shield tunneling efficiency is improved. And the overall construction efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the technical field of shield tunneling muck anti-clogging devices, and in particular to an improved shield tunneling muck anti-clogging device. Background Technology

[0002] Tunnel boring machines (TBMs) are indispensable equipment in modern underground engineering construction, widely used in projects such as tunnel excavation, subway construction, and underground pipeline laying. With the increasing complexity of the construction environment, TBMs inevitably generate a large amount of excavated soil during the excavation process, making the disposal of this excavated soil a significant factor affecting construction efficiency and safety.

[0003] In existing technologies, tunnel boring machine (TBM) excavation soil is mainly discharged by conveying screw conveyors. However, in actual transportation, relying solely on the screw conveyor for pushing is prone to blockage due to soil agglomeration, changes in moisture content, or uneven particle size, which seriously affects the efficiency of TBM tunneling.

[0004] Therefore, those skilled in the art have provided an improved shield tunneling muck anti-clogging device to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an improved shield tunneling muck anti-clogging device. This device utilizes the combined action of conveying auger and moving cam impact, along with forward thrust and crushing force, to effectively disperse accumulated muck, disrupt clogging trends, significantly reduce the frequency and severity of screw conveyor clogging, minimize downtime for cleaning, ensure the continuity of shield tunneling, and greatly improve overall construction efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] An improved shield tunneling muck anti-clogging device includes a conveying pipe. A first servo motor is installed in the middle of one end face of the conveying pipe. The output end of the first servo motor extends into the interior of the conveying pipe and is fixedly connected to a conveying auger. Connecting frames are fixedly connected to the upper and lower ends of the outer side of the conveying pipe. A threaded rod is rotatably connected inside the upper connecting frame. A threaded cylinder is threaded on one side of the outer side of the threaded rod. A sliding frame is fixedly connected to the upper end of the threaded cylinder. Support frames are fixedly connected to both sides of the inner side of the sliding frame. Bidirectional motors are installed inside the two support frames. Cams are fixedly connected to both ends of the two bidirectional motors. A second servo motor is installed on one end face of the upper connecting frame. The output end of the second servo motor is fixedly connected to one end of the threaded rod.

[0008] Through the above technical solution, the device effectively disperses the accumulated slag and breaks up the blockage trend by combining the auger conveying and the moving cam striking action with the forward thrust and crushing force. This significantly reduces the frequency and severity of the auger blockage, reduces downtime for cleaning, ensures the continuity of tunnel boring, and greatly improves the overall construction efficiency.

[0009] Furthermore, a support frame is fixedly connected to one side of the inside of the conveying pipe, and one end of the conveying auger passes through the middle of the support frame and is rotatably connected to it;

[0010] Through the above technical solution, the support frame is firmly fixed inside one side of the conveying pipe, providing a reliable rotation support point for one end of the conveying auger, ensuring that the auger can rotate stably and smoothly during the conveying process, effectively bearing the torque and axial force generated by the conveying, and improving the operational stability and reliability of the device.

[0011] Furthermore, a guide rod is fixedly connected inside the lower connecting frame, and a guide ring is fixedly connected inside the lower end of the sliding frame. The guide ring is sleeved on the outside of the guide rod and slidably connected to it.

[0012] Through the above technical solution, the guide rod and the guide ring inside the sliding frame form a sliding guide pair, which provides precise guidance for the movement of the sliding frame, limits its swaying and offset, and ensures that the sliding frame and related components can move smoothly and linearly along the preset trajectory, thereby improving the stability of the movement and the positioning accuracy.

[0013] Furthermore, two guide grooves are provided on both outer sides of the conveying pipe, and two guide blocks are fixedly connected to both inner sides of the sliding frame. Multiple guide blocks are located inside the guide grooves and are slidably connected to them.

[0014] Through the above technical solution, the guide groove set outside the conveying pipe cooperates with the guide blocks on both sides of the sliding frame to provide external constraints and guidance for the cyclic movement of the sliding frame and its internal bidirectional motor and cam outside the conveying pipe, ensuring that the entire moving striking mechanism can move smoothly and accurately along the conveying pipe, covering the predetermined area, and preventing unnecessary deviation or jamming.

[0015] Furthermore, a connecting flange is fixedly connected to one end face of the conveying pipe;

[0016] The above technical solution facilitates the standardized and detachable connection of the device's delivery pipe to the equipment by setting up the connecting flange, thereby improving the convenience of installation, disassembly and maintenance of the device.

[0017] Furthermore, a connection port is provided at the lower end of one side end face of the conveying pipe;

[0018] The above technical solution facilitates the connection of pipelines with different orientations, enabling precise delivery of excavated soil to designated locations, avoiding isolated accumulation, and improving on-site material management efficiency.

[0019] This utility model has the following beneficial effects:

[0020] 1. This utility model proposes an improved shield tunneling muck anti-clogging device. The device uses a first servo motor to drive a conveying auger to transport muck, while a second servo motor drives a threaded rod to make a bidirectional motor and a cam move and strike around outside the conveying pipe. This combines the forward thrust of the auger with the crushing force of the moving cam, effectively breaking up the accumulated muck, breaking the clogging trend, significantly reducing the frequency and severity of clogging of the screw conveyor, reducing downtime for cleaning, thus ensuring the continuity of shield tunneling and greatly improving the overall construction efficiency. Attached Figure Description

[0021] Figure 1 This is an overall isometric view of an improved shield tunneling muck anti-clogging device proposed in this utility model;

[0022] Figure 2 This is a top sectional view of an improved shield tunneling muck anti-clogging device proposed in this utility model;

[0023] Figure 3 This is a side sectional view of an improved shield tunneling muck anti-clogging device proposed in this utility model;

[0024] Figure 4 This is an isometric view of the sliding frame of an improved shield tunneling muck anti-clogging device proposed in this utility model;

[0025] Figure 5 This is a schematic diagram showing the unfolding of the sliding frame and cam of an improved shield tunneling muck anti-clogging device proposed in this utility model.

[0026] Legend:

[0027] 1. Conveying pipe; 2. First servo motor; 3. Conveying auger; 4. Support frame; 5. Connecting flange; 6. Connecting frame; 7. Threaded rod; 8. Threaded cylinder; 9. Sliding frame; 10. Support frame; 11. Bidirectional motor; 12. Cam; 13. Second servo motor; 14. Guide rod; 15. Guide ring; 16. Guide block; 17. Guide groove; 18. Connection port. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Reference Figure 1-5 The present invention provides a specific embodiment of an improved shield tunneling muck anti-blocking device, comprising a conveying pipe 1, a first servo motor 2 disposed in the middle of one side end face of the conveying pipe 1, the output end of the first servo motor 2 extending into the interior of the conveying pipe 1 and fixedly connected to a conveying auger 3, a connecting frame 6 fixedly connected to both the upper and lower ends of the conveying pipe 1, a threaded rod 7 rotatably connected inside the upper connecting frame 6, a threaded cylinder 8 threaded on one side of the outer side of the threaded rod 7, a sliding frame 9 fixedly connected to the upper end of the threaded cylinder 8, a support frame 10 fixedly connected to both sides of the sliding frame 9, a bidirectional motor 11 disposed inside the two support frames 10, a cam 12 fixedly connected to both ends of the two bidirectional motors 11, a second servo motor 13 disposed on one side end face of the upper connecting frame 6, and the output end of the second servo motor 13 fixedly connected to one end of the threaded rod 7;

[0030] The device effectively breaks up accumulated slag and disrupts blockage by combining the conveying action of the screw conveyor 3 with the striking action of the moving cam 12, along with the forward thrust and crushing force. This significantly reduces the frequency and severity of blockages in the screw conveyor, minimizes downtime for cleaning, ensures the continuity of tunnel boring, and greatly improves overall construction efficiency.

[0031] A support frame 4 is fixedly connected to one side of the inside of the conveying pipe 1. One end of the conveying auger 3 passes through the middle of the support frame 4 and is rotatably connected to it. The support frame 4 is firmly fixed to one side of the inside of the conveying pipe 1, providing a reliable rotation support point for one end of the conveying auger 3, ensuring that the auger can rotate stably and smoothly during the conveying process, effectively bearing the torque and axial force generated by the conveying, and improving the operational stability and reliability of the device. A guide rod 14 is fixedly connected inside the lower connecting frame 6, and a guide ring 15 is fixedly connected to the lower end of the sliding frame 9. The guide ring 15 is sleeved on the outside of the guide rod 14 and slidably connected to it. The guide rod 14 and the guide ring 15 inside the sliding frame 9 form a sliding guide pair, providing precise guidance for the movement of the sliding frame 9, limiting its shaking and offset, and ensuring that the sliding frame 9 and related components can move smoothly and linearly along the preset trajectory, improving the stability and positioning accuracy of the movement. Two guide grooves 17 are opened on both sides of the outside of the conveying pipe 1, and the sliding frame Two guide blocks 16 are fixedly connected to both sides of the inner side of the sliding frame 9. Multiple guide blocks 16 are located inside the guide groove 17 and slidably connected to it. The guide groove 17 set outside the conveying pipe 1 cooperates with the guide blocks 16 on both sides of the sliding frame 9, providing external constraint and guidance for the cyclic movement of the sliding frame 9 and its internal components such as the bidirectional motor 11 and cam 12 outside the conveying pipe 1. This ensures that the entire moving striking mechanism can move smoothly and accurately along the conveying pipe 1, covering the predetermined area and preventing unnecessary deviation or jamming. A connecting flange 5 is fixedly connected to one end face of the conveying pipe 1. The setting of the connecting flange 5 facilitates the standardized and detachable connection of the conveying pipe 1 of this device to the equipment, improving the convenience of installation, disassembly and maintenance of the device. A connection port 18 is opened at the lower end of one end face of the conveying pipe 1. The setting of the connection port 18 facilitates the connection of pipelines with different directions, which can accurately transport the slag to the designated location, avoid single accumulation, and improve the efficiency of on-site material management.

[0032] Working Principle: In operation, the device is first securely connected to the storage bin of the tunnel boring machine (TBM) via flanges. Then, an external controller commands the first servo motor 2 to drive the conveying auger 3 to rotate, pushing the excavated soil from the storage bin. During the conveying process, the bidirectional motor 11 inside the sliding frame 9 starts, driving the cam 12 to rotate continuously. The edge of the cam 12 periodically strikes the outer wall of the conveying pipe 1, effectively breaking up the excavated soil adhering to the wall and disrupting the initial clumps inside using physical impact force. Simultaneously, the second servo motor 13 precisely controls the rotation of the threaded rod 7, driving the sliding frame 9 and its internal bidirectional motor 11 and cam 12 assemblies to move axially along the outer side of the conveying pipe 1. This effectively combines the forward thrust of the auger with the crushing force of the moving cam 12, significantly enhancing the device's ability to handle agglomerated and large pieces of excavated soil, effectively breaking up aggregates and promptly eliminating the initial stages of blockage. This greatly reduces the frequency and severity of blockages in the screw conveyor, minimizing downtime for cleaning due to blockages, thus ensuring continuous and stable operation of the TBM tunneling operation and significantly improving overall construction efficiency.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An improved anti-blocking device for shield muck, comprising a conveying pipe (1), characterized in that: A first servo motor (2) is provided in the middle of one side end face of the conveying pipe (1). The output end of the first servo motor (2) extends into the interior of the conveying pipe (1) and is fixedly connected to a conveying auger (3). A connecting frame (6) is fixedly connected to both the upper and lower ends of the outer side of the conveying pipe (1). A threaded rod (7) is rotatably connected inside the upper connecting frame (6). A threaded cylinder (8) is threaded on one side of the outer side of the threaded rod (7). A sliding frame (9) is fixedly connected to the upper end of the threaded cylinder (8). Support frames (10) are fixedly connected to both sides inside the sliding frame (9). A bidirectional motor (11) is provided inside both support frames (10). A cam (12) is fixedly connected to both ends of the two bidirectional motors (11). A second servo motor (13) is provided on one side end face of the upper connecting frame (6). The output end of the second servo motor (13) is fixedly connected to one end of the threaded rod (7).

2. The improved shield sludge anti-blocking device according to claim 1, characterized in that: A support frame (4) is fixedly connected to one side of the inside of the conveying pipe (1), and one end of the conveying auger (3) passes through the middle of the support frame (4) and is rotatably connected to it.

3. The improved shield sludge anti-blocking device according to claim 1, characterized in that: The lower end of the connecting frame (6) is fixedly connected to a guide rod (14), and the lower end of the sliding frame (9) is fixedly connected to a guide ring (15). The guide ring (15) is sleeved on the outside of the guide rod (14) and slidably connected to it.

4. The improved shield sludge anti-blocking device according to claim 1, characterized in that: Two guide grooves (17) are opened on both sides of the outer side of the conveying pipe (1), and two guide blocks (16) are fixedly connected to both sides of the inner side of the sliding frame (9). Multiple guide blocks (16) are located inside the guide grooves (17) and are slidably connected to them.

5. The improved shield sludge anti-blocking device according to claim 1, characterized in that: A connecting flange (5) is fixedly connected to one end face of the conveying pipe (1).

6. The improved shield sludge anti-blocking device according to claim 1, characterized in that: A connection port (18) is provided at the lower end of one side of the conveying pipe (1).

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