A bottom slagging device of a roadway tunneling machine

Abstract

This invention relates to the field of tunnel boring equipment technology, and discloses a bottom cleaning device for a tunnel boring machine, including a cleaning section. The cleaning section includes a first cleaning plate and a second cleaning plate. One end of the first cleaning plate and the second cleaning plate are tightly abutted together, and the other end is far apart from each other, forming a structure where the front end is gathered and the rear end is dispersed. A connecting part is provided between the first cleaning plate and the second cleaning plate, and a connecting seat is provided on the connecting part. This invention can specifically guide and remove large obstacles on the movement trajectory of the tunnel boring machine, ensuring the normal operation of the tunnel boring machine tracks and improving the stability and efficiency of the equipment.

Description

Technical Field

[0001] This invention relates to the field of tunnel boring equipment technology, and in particular to a bottom cleaning device for a tunnel boring machine. Background Technology

[0002] Coal mine roadway excavation is one of the core components of coal mining engineering. As a key piece of equipment for roadway excavation, the stability and efficiency of the tunneling machine directly determine the construction progress and safety level of the roadway. In actual underground operations, the geological conditions inside coal mine roadways are complex, and the tunneling machine is prone to encountering large obstacles such as rocks and soil blocks during operation.

[0003] These large obstacles often appear within the movement trajectory of the tunneling machine, directly interfering with the normal operation of the tracks at the bottom of the machine. On the one hand, obstruction by obstacles can easily cause the tracks to jam or deviate, and in severe cases, it can even cause track wear and damage to transmission components, significantly reducing the service life of the tracks. On the other hand, abnormal track operation can directly disrupt the tunneling machine's walking stability, leading to equipment positioning deviations and unbalanced operating postures. This not only affects the accuracy of core operations such as cutting and loading, but also reduces overall tunneling efficiency and increases construction costs.

[0004] Therefore, there is an urgent need for a slag removal device that can specifically clear large obstacles on the movement trajectory of a tunneling machine, so as to ensure the normal operation of the tunneling machine tracks, improve the stability of the equipment and the efficiency of operation, and thus ensure the safe and efficient operation of underground tunneling in coal mines. Summary of the Invention

[0005] The purpose of this invention is to provide a bottom cleaning device for a tunnel boring machine, which can specifically guide and remove large obstacles on the movement trajectory of the tunnel boring machine, ensuring the normal operation of the tunnel boring machine tracks and improving the stability and efficiency of the equipment.

[0006] The present invention adopts the following technical solution: A bottom cleaning device for a tunnel boring machine includes a cleaning section, which includes a first cleaning plate and a second cleaning plate. One end of the first cleaning plate and the second cleaning plate are tightly abutted together, and the other end is far apart from each other, forming a structure in which the front end is gathered and the rear end is dispersed. A connecting part is provided between the first cleaning plate and the second cleaning plate, and a connecting seat is provided on the connecting part.

[0007] Preferably, the first slag-cleaning plate and the second slag-cleaning plate are movably connected to the connecting part, and a double-rod hydraulic cylinder is provided on the connecting part. The two telescopic ends of the double-rod hydraulic cylinder are respectively connected to the first slag-cleaning plate and the second slag-cleaning plate.

[0008] Preferably, the connecting part has a hollow structure, and a sliding arm is provided on the opposite side of the first slag cleaning plate and the second slag cleaning plate. The sliding arm is slidably located in the connecting part, and the double-rod cylinder is disposed in the connecting part between the two sliding arms.

[0009] Preferably, the sliding arm is provided with a guide rod, and the connecting part is provided with a guide hole, and the guide rod is movably located in the guide hole.

[0010] Preferably, the guide rod is disposed at the upper and lower ends of the sliding arm.

[0011] Preferably, both the first slag cleaning plate and the second slag cleaning plate are provided with a plurality of rollers that roll along their length, and each roller protrudes from the outer side wall of the first slag cleaning plate and the second slag cleaning plate.

[0012] Preferably, both the first slag-cleaning plate and the second slag-cleaning plate have a hollow internal structure, and multiple receiving grooves are provided on their outer side walls. The roller is located outside the first slag-cleaning plate and the second slag-cleaning plate through the receiving grooves.

[0013] Preferably, both the first slag removal plate and the second slag removal plate are equipped with cameras.

[0014] Preferably, the camera is mounted on a support frame, and the support frame is provided with a transparent protective cover.

[0015] Preferably, the protective cover is coaxially arranged with one of the rollers and located above the roller. After the roller axle moves out from the top of the corresponding first or second slag cleaning plate, a cleaning brush is provided on it, and the cleaning brush contacts the outer wall of the protective cover.

[0016] Compared with existing technologies, the beneficial effects of this invention are as follows: The invention utilizes a lateral flow-guiding structure formed by the side-mounted cleaning plates to automatically guide and remove large obstacles such as rocks and soil clods from the track during the tunneling machine's forward movement. This effectively prevents obstacles from jamming or compressing the tracks, ensuring smooth track movement from the root cause and significantly reducing the risk of track jamming and deviation. By clearing obstacles along the travel path in real time, this invention ensures the tunneling machine maintains a stable walking posture, avoiding equipment jolting and posture imbalance caused by obstacles at the bottom. This, in turn, guarantees the accuracy of core processes such as cutting and loading, and improves the overall stability of the machine's operation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a partial cross-sectional view of the obstacle-clearing part of the present invention; Figure 3 for Figure 1 A magnified view of A in the middle. Detailed Implementation

[0018] The present invention will now be described clearly and completely with reference to the accompanying drawings and embodiments: like Figures 1 to 3 As shown, the bottom cleaning device for a tunnel boring machine according to the present invention includes a cleaning section, which includes a first cleaning plate 1 and a second cleaning plate 2. One end of the first cleaning plate 1 and the second cleaning plate 2 are tightly abutted together, while the other ends are far apart, forming a structure with the front end converging and the rear end diverging. Preferably, the contacting end of the first cleaning plate 1 and the second cleaning plate 2 is an inclined surface, ensuring that a pointed structure is formed after they contact each other. This allows the cleaning section to use its pointed structure at the front end to divert large obstacles on the tunnel boring machine's movement trajectory to both sides during the tunnel boring machine's movement, and to move along with the tunnel boring machine. The movement of the debris is directed to the outside of the tunneling machine track. It should be noted that, in the initial state, the distance between the ends of the first debris removal plate 1 and the second debris removal plate 2 that are far from each other is greater than the width of the tunneling machine track, so as to guide large obstacles to both sides of the tunneling machine. A connecting part 3 is provided between the first debris removal plate 1 and the second debris removal plate 2. A connecting seat 4 is provided on the connecting part 3 for connecting with the front end of the tunneling machine. A lifting cylinder can be provided on the connecting seat 4. The lifting cylinder is used to connect with the tunneling machine to realize the lifting and lowering of the debris removal device, thereby meeting the operation requirements at different heights.

[0019] Furthermore, the first cleaning plate 1 and the second cleaning plate 2 are movably connected to the connecting part 3. A double-rod hydraulic cylinder 5 is installed on the connecting part 3. The double-rod hydraulic cylinder 5 can utilize the hydraulic system of the tunneling machine. The telescopic ends of the double-rod hydraulic cylinder 5 are connected to the first cleaning plate 1 and the second cleaning plate 2 respectively. Specifically, the connecting part 3 has a hollow structure. Sliding arms 6 are provided on opposite sides of the first cleaning plate 1 and the second cleaning plate 2. The sliding arms 6 slide within the connecting part 3, and the double-rod hydraulic cylinder 5 is located within the connecting part 3 between the two sliding arms 6. The double-rod hydraulic cylinder 5 allows for the movement of obstacles that are too large or heavy to move along the guiding direction of the first cleaning plate 1 and the second cleaning plate 2. By activating the double-rod hydraulic cylinder 5, the first cleaning plate 1 and the second cleaning plate 2 are pushed outwards, moving the obstacle outside the tunneling machine's movement trajectory, thus ensuring the normal operation of the tunneling machine. Preferably, a guide rod 7 is provided on the sliding arm 6, and a guide hole 8 is provided through the connecting part 3, with the guide rod 7 movably located within the guide hole 8. The guide rod 7 and the guide hole 8 ensure the stability of the sliding arm 6's movement. Specifically, two guide rods 7 are provided on each sliding arm 6, respectively located at the upper and lower ends of the sliding arm 6. The guide rod 7 is threadedly connected to the sliding arm 6, facilitating the installation and removal of the sliding arm 6 from the connecting part 3. Specifically, the bottom of the guide rod 7 is provided with a threaded head, and the sliding arm 6 is provided with a threaded hole for installing the threaded head.

[0020] Furthermore, multiple rollers 9 are rolled along the length of both the first slag cleaning plate 1 and the second slag cleaning plate 2, with each roller 9 protruding from the outer side wall of the first slag cleaning plate 1 and the second slag cleaning plate 2. The rollers 9 can transform the rigid friction between large obstacles and the first slag cleaning plate 1 and the second slag cleaning plate 2 into movable friction, thereby guiding the obstacles while reducing wear between the obstacles and the first slag cleaning plate 1 and the second slag cleaning plate 2.

[0021] Preferably, both the first cleaning plate 1 and the second cleaning plate 2 are hollow structures with multiple receiving grooves on their outer side walls. The rollers 9 are located outside the first cleaning plate 1 and the second cleaning plate 2 through these receiving grooves. This arrangement prevents small stone particles or other obstacles from accumulating between adjacent rollers 9 during operation, which could cause the rollers 9 to jam and affect their normal operation. In this invention, the entire cleaning device, the connecting seat 4, the sliding arm 6, the guide rod 7, the connecting part 3, and the rollers 9 are all made of wear-resistant and hard alloy material to ensure their service life.

[0022] Furthermore, cameras are installed on both the first slag removal plate 1 and the second slag removal plate 2. These cameras are remotely and wirelessly connected to the control mechanism of the tunneling machine to monitor the conditions on the tunneling machine's path in real time, facilitating timely adjustments and ensuring smooth passage. The cameras are mounted on an L-shaped support frame 10, which is covered by a transparent protective cover 11 to prevent damage to the cameras from gravel particles and other debris generated during operation.

[0023] The protective cover 11 is coaxially arranged with one of the rollers 9 and is located above the roller 9. The axle of the roller 9 extends through the top of the corresponding first cleaning plate 1 or second cleaning plate 2 and is provided with a connecting plate 12. The bottom of the protective cover 11 is located above the connecting plate 12. A cleaning brush 13 is rotatably arranged on the connecting plate 12. The cleaning brush 13 contacts the outer wall of the protective cover 11. This arrangement allows the cleaning brush 13 to rotate when the roller 9 rotates in friction with the obstacle, thereby scraping the side wall of the protective cover 11, ensuring the cleanliness of the protective cover 11 and ensuring the shooting effect.

[0024] In use, this invention only requires the connecting seat 4 to mount the slag removal device at the front end of the tunneling machine. A lifting cylinder can be installed between the connecting seat 4 and the tunneling machine to control the raising and lowering of the slag removal device. During operation, as the tunneling machine moves, it pushes the slag removal device forward. The slag removal device uses its front tip to divert obstacles to both sides of the first slag removal plate 1 and the second slag removal plate 2. As the first slag removal plate 1 and the second slag removal plate 2 move forward, the obstacles gradually separate to both sides of the tunneling machine, effectively clearing obstacles from the tunneling machine's movement trajectory. When there are large or heavy obstacles that are difficult to separate to both sides, the double-rod cylinder 5 can be controlled to push the first slag removal plate 1 and the second slag removal plate 2 to push the obstacles out. This invention has a simple overall structure, is easy to operate, and greatly ensures unobstructed movement within the tunneling machine's movement trajectory, ensuring the smooth progress of tunneling work.

Claims

1. A bottom cleaning device for a tunnel boring machine, characterized in that: The system includes a slag removal section, which includes a first slag removal plate and a second slag removal plate. One end of the first slag removal plate and the second slag removal plate are tightly abutted together, while the other ends are far apart from each other, forming a structure in which the front end is gathered and the rear end is dispersed. A connecting part is provided between the first slag removal plate and the second slag removal plate, and a connecting seat is provided on the connecting part.

2. The bottom cleaning device for a tunnel boring machine according to claim 1, characterized in that: The first slag-cleaning plate and the second slag-cleaning plate are movably connected to the connecting part. A double-rod hydraulic cylinder is provided on the connecting part, and the two telescopic ends of the double-rod hydraulic cylinder are respectively connected to the first slag-cleaning plate and the second slag-cleaning plate.

3. The bottom cleaning device for a tunnel boring machine according to claim 2, characterized in that: The connecting part has a hollow structure. Sliding arms are provided on opposite sides of the first and second slag cleaning plates. The sliding arms are slidably located inside the connecting part. The double-rod cylinder is located inside the connecting part between the two sliding arms.

4. The bottom cleaning device for a tunnel boring machine according to claim 3, characterized in that: The sliding arm is provided with a guide rod, and the connecting part is provided with a guide hole, and the guide rod is movably located in the guide hole.

5. The bottom cleaning device for a tunnel boring machine according to claim 4, characterized in that: The guide rod is disposed at the upper and lower ends of the sliding arm.

6. The bottom cleaning device for a tunnel boring machine according to any one of claims 1-5, characterized in that: Both the first and second slag-cleaning plates are provided with multiple rollers that roll along their length, and each roller protrudes from the outer side wall of the first and second slag-cleaning plates.

7. The bottom cleaning device for a tunnel boring machine according to claim 6, characterized in that: Both the first and second slag-cleaning plates are hollow structures with multiple receiving grooves on their outer walls. The rollers are located outside the first and second slag-cleaning plates through the receiving grooves.

8. The bottom cleaning device for a tunnel boring machine according to claim 6, characterized in that: Both the first slag removal plate and the second slag removal plate are equipped with cameras.

9. The bottom cleaning device for a tunnel boring machine according to claim 8, characterized in that: The camera is mounted on a support frame, and the support frame is covered with a transparent protective cover.

10. The bottom cleaning device for a tunnel boring machine according to claim 9, characterized in that: The protective cover is coaxially arranged with one of the rollers and located above the roller. The roller axle extends movably from the top of the corresponding first or second slag cleaning plate and is provided with a cleaning brush, which contacts the outer wall of the protective cover.

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