Pedestrian passage laying device of TBM tunneling roadway
By using a belt conveyor and monorail crane in conjunction with an upper scraper, lower scraper, and hydraulic cylinder system in the TBM tunneling roadway, the problems of limited construction space and passage continuity were solved, enabling efficient and automated paving of pedestrian passages and adapting to the efficient operation of TBM tunneling machines.
Patent Information
- Application Number
- CN202520609553.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-31
AI Technical Summary
The laying of pedestrian passages in TBM tunneling roadways faces challenges such as limited construction space, conflicts between the support structure and the pedestrian passage, and difficulty in ensuring the continuity of the passage, resulting in low laying efficiency.
The system employs movable upper and lower scrapers on the conveyor belt, combined with a monorail and hydraulic cylinder, to achieve automated paving and width adjustment of the pedestrian walkway. Rock slag is used as the walkway material, and baffles and limit screws are used to form a stable walkway boundary.
It improved the efficiency of pedestrian walkway construction, ensured the continuity and flatness of the walkway, simplified the construction process, and met the high-efficiency operation requirements of TBM tunneling machines.
Smart Images
Figure CN223891871U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of tunneling roadway equipment, more particularly to a pedestrian passage laying device for TBM tunneling roadway. BACKGROUND
[0002] The bottom of the TBM tunneling roadway is circular, and it is inconvenient for people to walk. In the past, TBM tunneling tunnels and roadways were all installed with steel pedestrian passages by bolting into the side of the tunnel or roadway. The diameter of traffic and water conservancy tunnels is relatively large, and the space inside the tunnel is sufficient, so it is relatively convenient to transport and install the steel pedestrian passage, the installation efficiency is relatively high, and the installation speed of the pedestrian passage can still keep up with the TBM tunneling speed. However, the diameter of the coal mine TBM equipment is relatively small, and the space for excavating the roadway is cramped. It is difficult to match the TBM tunneling speed, that is, to complete the transportation and assembly of the pedestrian passage in a short period of time.
[0003] Nowadays, the laying of the pedestrian passage of the TBM tunneling roadway has the following problems: 1) narrow construction space: the TBM tunneling machine has a large size, and the space of the tunneling working face is limited, which seriously limits the laying space of the pedestrian passage. The existing supporting process, such as anchor net supporting, has many procedures and is difficult to realize automatic operation, which further reduces the supporting construction speed; 2) conflict between supporting structure and pedestrian passage: the existing supporting structure, such as reinforced concrete segment and steel shed frame, has problems such as complex installation, heavy weight, and inconvenient transportation, which makes it difficult to efficiently construct in the limited space, and also may hinder the laying of the pedestrian passage; 3) continuity problem of the passage: in the TBM tunneling process, the pedestrian passage needs to be adjusted synchronously with the movement of the tunneling machine, but the existing technology cannot guarantee the continuity of the passage. UTILITY MODEL CONTENTS
[0004] The technical problem to be solved by the utility model lies in how to improve the laying efficiency of the pedestrian passage.
[0005] The utility model solves the above technical problems through the following technical scheme: a pedestrian passage laying device for TBM tunneling roadway, comprising a belt conveyor arranged in the roadway, a pedestrian passage arranged on one side of the belt conveyor, and an upper scraper arranged on the conveying surface of the belt conveyor and capable of moving forward or backward along the conveying surface, wherein the upper scraper can cause the conveyed objects on the conveying surface of the belt conveyor to fall outside the belt conveyor and form the pedestrian passage.
[0006] As a preferred technical scheme, the upper scraper is fixedly connected with a lower scraper at one end of the pedestrian passage.
[0007] As a preferred technical scheme, the utility model further comprises a monorail crane, and the upper scraper is connected to the moving end of the monorail track, and the monorail crane can also drive the upper scraper to move towards or away from the conveying surface of the belt conveyor.
[0008] As a preferred technical scheme, the belt conveyor is fixedly connected in the roadway through a belt conveyor rack, the belt conveyor rack is provided with a track, and the track is in sliding fit with the upper scraper.
[0009] As a preferred technical scheme, the belt conveyor rack is provided with two tracks, and the two tracks are respectively on two sides of the belt conveyor.
[0010] As a preferred technical scheme, the belt conveyor is provided with a baffle capable of moving towards or away from the pedestrian passage.
[0011] As a preferred technical scheme, the hydraulic cylinder is further arranged in the roadway, and an output end of the hydraulic cylinder is in transmission connection with the baffle.
[0012] As a preferred technical scheme, the inner wall of the bottom of the roadway is further provided with a limiting screw matched with the baffle.
[0013] As a preferred technical scheme, the pedestrian passage is provided on both sides of the belt conveyor, and the upper scraper is arranged in an inclined manner.
[0014] As a preferred technical scheme, the pedestrian passage is made of rock slag.
[0015] The beneficial effects of the utility model lie in:
[0016] (1) In the utility model, the upper scraper capable of moving forward or reversely along the conveying surface of the belt conveyor is arranged on the conveying surface of the belt conveyor, and the conveyed objects on the conveying surface of the belt conveyor can be filled into the outside of the belt conveyor and form a pedestrian passage, so that manual backfilling is avoided, and the efficiency of laying the pedestrian passage is improved.
[0017] (2) In the utility model, the lower scraper is arranged, so that the conveyed objects can be guided to the area where the pedestrian passage is located, and the top of the pedestrian passage is scraped and flattened, so that the flatness of the formed pedestrian passage is improved.
[0018] (3) In the utility model, the baffle and the hydraulic cylinder are arranged, so that the forming boundary of the pedestrian passage can be adjusted, and the width of the pedestrian passage is controllable. DRAWINGS
[0019] Figure 1 The drawing is a schematic diagram of a partial top view structure of the device provided in the utility model embodiment;
[0020] Figure 2 The drawing is a schematic diagram of a partial cross section structure of the roadway provided in the utility model embodiment;
[0021] Reference signs: 1, pedestrian passage; 2, lower scraper; 3, upper scraper; 4, baffle; 5, sliding rail; 6, belt conveyor rack; 7, belt conveyor. DETAILED DESCRIPTION
[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0023] See Figure 1 , Figure 2 A pedestrian walkway laying device for a TBM tunneling roadway includes a monorail crane, a belt conveyor frame 6, a belt conveyor 7, a slide rail 5, an upper scraper 3, a lower scraper 2, a baffle 4, and a pedestrian walkway 1. The monorail crane is installed at the top of the roadway. The monorail crane is existing technology and can realize the movement of the suspended object along the arrangement direction of the monorail crane and the movement of the suspended object in the height direction. The belt conveyor frame 6 is installed at the bottom of the roadway. The belt conveyor 7 is installed on the belt conveyor frame 6. The slide rail 5 is fixed on the outside of the belt conveyor frame 6. The upper scraper 3 is slidably connected to the slide rail 5. In this embodiment, the slide rail 5 is provided on both sides of the belt conveyor frame 6 to ensure the stability of the upper scraper 3 sliding.
[0024] Pedestrian walkways 1 are provided on both sides of the belt conveyor frame 6. The upper scraper 3 is used to scrape the gangue on the conveying surface of the belt conveyor 7 toward the pedestrian walkways 1 on both sides of the belt conveyor frame 6. The upper scraper 3 extends to one end of the pedestrian walkway 1 and is fixedly connected to the lower scraper 2. The lower scraper 2 is used to flatten the surface of the gangue and ensure the uniformity of the pedestrian walkway 1. The upper scraper 3 is set at an angle. The upper scraper 3 and the lower scraper 2 can be connected to the moving end of the monorail and move with the monorail.
[0025] The belt conveyor frame 6 is equipped with a baffle 4 on the side near the pedestrian passage 1, which can move toward or away from the pedestrian passage 1. A hydraulic cylinder is also provided at the bottom of the tunnel. The telescopic end of the hydraulic cylinder is fixedly connected to the baffle 4. The hydraulic cylinder is located at the bottom of the belt conveyor frame 6. The width of the pedestrian passage 1 can be adjusted by adjusting the position of the baffle 4. At the same time, it can prevent the lateral spread of gangue. The baffle 4 forms the side boundary of the pedestrian passage 1. Two limit screws are also provided on the inner wall of the bottom of the tunnel to limit the stroke of the baffle 4.
[0026] It should be noted that in this embodiment, rock slag is the main material of pedestrian passage 1.
[0027] Working principle:
[0028] The gangue transported by the belt conveyor 7 for discharging the gangue is used to pave the pedestrian passage 1 while the TBM is excavating, the slide rail 5 is fixed on the belt conveyor frame 6, the upper scraper 3 and the lower scraper 2 capable of moving along the axis direction of the belt conveyor 7 are arranged on the slide rail 5, the upper scraper 3 is used to scrape the gangue on the belt conveyor 7 to the side of the pedestrian passage 1, the baffle 4 installed on the bottom side of the belt conveyor frame 6 is used to block the gangue, so that the gangue is accumulated on one side of the belt conveyor 7 to form the pedestrian passage 1, and the lower scraper 2 is used to scrape the gangue 1 scraped to the pedestrian passage 1 to be flat, cement slurry or other chemical liquid with the function of bonding can be sprayed to reinforce the gangue in the later period, so that the pedestrian passage 1 is more stable.
[0029] The above examples are only used to illustrate the technical solutions of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can be modified, or some technical features can be replaced by equivalent ones; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims
1. A pedestrian walkway laying device for a TBM tunnel, characterized in that, It includes a belt conveyor located in a tunnel, with a pedestrian passage on one side of the belt conveyor. The belt conveyor surface is equipped with an upper scraper that can move forward or backward along its conveying surface. The upper scraper can cause the transported material on the belt conveyor surface to fall outside the belt conveyor and form a pedestrian passage.
2. The pedestrian walkway laying device for a TBM tunneling roadway according to claim 1, characterized in that, The upper scraper extends to one end of the pedestrian walkway and is fixedly connected to the lower scraper.
3. The pedestrian walkway laying device for a TBM tunneling roadway according to claim 2, characterized in that, It also includes a monorail crane, with the upper scraper connected to the moving end of the monorail. The monorail crane can also drive the upper scraper to move toward or away from the conveyor belt surface.
4. The pedestrian walkway laying device for a TBM tunneling roadway according to claim 1, characterized in that, The belt conveyor is fixedly connected to the roadway via a belt conveyor frame. The belt conveyor frame is equipped with a track, which slides in conjunction with the upper scraper.
5. A pedestrian walkway laying device for a TBM tunneling roadway according to claim 4, characterized in that, The belt conveyor frame is equipped with two tracks, one on each side of the belt conveyor.
6. The pedestrian walkway laying device for a TBM tunneling roadway according to claim 1, characterized in that, The belt conveyor is equipped with a baffle that can move toward or away from the pedestrian walkway.
7. A pedestrian walkway laying device for a TBM tunneling roadway according to claim 6, characterized in that, It also includes a hydraulic cylinder installed in the tunnel, with the output end of the hydraulic cylinder connected to the baffle for transmission.
8. A pedestrian walkway laying device for a TBM tunneling roadway according to claim 6, characterized in that, The inner wall at the bottom of the tunnel is also equipped with limiting screws that are compatible with the baffle.
9. A pedestrian walkway laying device for a TBM tunneling roadway according to claim 1, characterized in that, Pedestrian walkways are provided on both sides of the belt conveyor, and the upper scraper is inclined.
10. A pedestrian walkway laying device for a TBM tunneling roadway according to claim 1, characterized in that, The pedestrian walkway is made of rock slag.