A tool for controlling the misalignment of a capping block

Abstract

The utility model discloses a kind of for controlling the tool of top block misalignment;It is related to shield construction technology field, for solving the problem of existing technology installation cumbersome and poor stability;Including the taper bolt being set on two top blocks respectively, two top blocks are provided with the installation plate matched with its curvature, the installation hole for passing through taper bolt is set in the both ends of installation plate, the side of installation plate is also provided with limiting component;By installing with the inner end camber of top block and using limit plate to install on the fastening screw of installation plate middle part, ensure the stem of taper bolt simultaneously penetrates the both ends of installation plate and limit plate when installing, and using fastening nut to install on fastening screw, to control the misalignment phenomenon generated at the edge of two top blocks adjacent by the mode of fastening limit plate and installation plate and limiting bolt;With the advantages of convenient to use, strong stability, high reliability and simple structure.

Description

Technical Field

[0001] This utility model relates to the field of tunnel boring machine (TBM) construction technology, specifically to a tooling for controlling the misalignment of the capping block. Background Technology

[0002] Tunnel boring machines (TBMs) are currently the main equipment used for tunneling in urban rail transit, municipal engineering, and railway and highway tunnels. Segment assembly is an important sub-project in rail transit construction, occupying a very special position in the TBM tunneling process and playing a crucial role in the entire project. During the assembly of tunnel segments, misalignment may occur between two segments due to the inability to maintain alignment. Low smoothness and flatness between segments can easily cause inconvenience to subsequent tunnel construction.

[0003] A tooling for controlling misalignment of a capping block, disclosed in CN219865054U, includes a first plate and a second plate welded to one side of the first plate. The first plate includes a connecting part for connecting segments. The tooling has a connected state and an independent state. When transitioning from the independent state to the connected state, the two second plates are in contact with each other. This application reduces the probability of misalignment by welding the tooling to the capping block and providing support to the capping block through the arc-shaped plate at the top of the second plate. However, this application requires a welding process, making the installation method cumbersome and thus extending the construction period. Furthermore, the stability of the device depends on the welding process, and its structure itself cannot improve the stability of the capping block. Utility Model Content

[0004] To address the aforementioned problems, this utility model aims to provide a tooling for controlling misalignment of the capping blocks. It involves fixing tapered bolts to two adjacent capping blocks and placing a mounting plate between the two blocks that conforms to their curvature. A limiting plate is installed on one side of the mounting plate where a fastening screw is located, and a limiting nut is screwed into the fastening screw to limit the limiting plate. The tapered bolts are also limited by bolt limiting holes on both sides of the limiting plate, ensuring alignment between the two capping blocks. This reduces misalignment and improves the stability of the connection between them. It offers advantages such as ease of use, high stability, high reliability, and simple structure.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A tooling for controlling the misalignment of capping blocks includes tapered bolts respectively disposed on upper and lower capping blocks. The inner curved surfaces of the two capping blocks are provided with mounting plates that match their curvature. The mounting plates have mounting holes at both ends for the tapered bolts to pass through. A limit member is also provided on one side of the mounting plate.

[0006] Based on the above technical solution, the mounting hole is further defined as a strip hole or a round hole.

[0007] The limiting component includes a limiting plate. A fastening screw is provided on the side of the mounting plate away from the capping block. The fastening screw passes through the adjustment hole in the middle of the limiting plate. Limiting holes for limiting the rod body of the tapered bolt are provided at both ends of the limiting plate. A limiting nut is also provided on the fastening screw.

[0008] Based on the above technical solution, the limiting hole is further defined as a strip-shaped hole.

[0009] The capping block has symmetrical bolt holes at both ends for screwing in tapered bolts.

[0010] The mounting holes at both ends of the mounting plate are symmetrically arranged.

[0011] The limiting holes at both ends of the limiting plate are symmetrically arranged.

[0012] The limiting plate is set perpendicular to the fastening screw.

[0013] The beneficial effects of this utility model are: This application involves screwing tapered bolts into two top blocks, passing a mounting plate through the mounting holes at both ends of the tapered bolt shaft to ensure it fits snugly against the top blocks, and passing a limiting plate through the limiting holes at both ends of the tapered screw shaft. A limiting nut is then screwed onto the fastening screw to secure the limiting plate relative to the mounting plate. This limiting structure, formed by the limiting holes and the two tapered bolts, limits and fixes two adjacent top blocks, ensuring alignment at their joints, reducing misalignment, and improving the reliability of the device. Secondly, the overall structure of this application is relatively simple, and compared with the existing tooling that requires welding for installation, it has the advantage of being easy to use, which can save a lot of installation time and thus improve the overall project efficiency. By setting different shapes of mounting holes on the mounting plate, the installation method can be adjusted according to actual needs. By using limiting components, a stable connection structure is formed between the mounting plate, the tapered bolt and the capping block, which makes this application have the advantage of strong stability. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention when it is installed onto the capping block; Figure 2 This is a three-dimensional structural diagram of the present invention based on Embodiment 1; Figure 3 This is a three-dimensional structural diagram of the present invention based on Embodiment 2. Figure 4 This is a front view of the present invention based on Embodiment 1; Figure 5 This is a front sectional view of the present invention based on Embodiment 1; Figure 6This is a front sectional view of the present invention based on Embodiment 2. Figure 7 A three-dimensional sectional view of the mounting plate based on Embodiment 1; Figure 8 This is a three-dimensional structural diagram of the mounting plate based on Embodiment 2; Figure 9 This is a three-dimensional sectional view of the limiting plate. Figure 10 This is a three-dimensional structural cross-sectional view of the capping block.

[0015] The components are: 1. Top block; 101. Bolt hole; 2. Tapered bolt; 3. Mounting plate; 301. Mounting hole; 4. Limiting plate; 401. Limiting hole; 402. Adjusting hole; 5. Fastening screw; 6. Limiting nut. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0017] The inventors discovered that during the assembly of tunnel segments, misalignment may occur between two segments due to the inability to maintain alignment. The smoothness and flatness between the segments are low, which can cause inconvenience to subsequent tunnel construction. Existing devices for controlling misalignment of the capping blocks require welding processes, making installation cumbersome, which leads to a longer construction period and poor structural stability.

[0018] Based on the above findings, this application proposes a tooling for controlling misalignment of capping blocks. This tooling involves fixing tapered bolts to two adjacent capping blocks and placing a mounting plate that conforms to the curvature of the two capping blocks between them. A limiting plate is placed on one side of the mounting plate where a fastening screw is located, and a limiting nut is screwed into the fastening screw to limit the limiting plate. The tapered bolts are limited by bolt limiting holes on both sides of the limiting plate, ensuring alignment between the two capping blocks. This reduces misalignment and improves the stability of the connection between them. The tooling is convenient to use, highly stable, reliable, and has a simple structure. Example 1

[0019] See Figure 1 and Figure 10 This application discloses a tooling for controlling misalignment of the capping block, including a tapered bolt 2 for screwing into the capping block 1, such as... Figure 10As shown, the capping block 1 is part of the capping block structure actually used for assembling track segments. Multiple capping blocks 1 are installed into the tunnel excavated by the shield machine using the existing fixing method. During installation, misalignment is likely to occur at the edges of two adjacent capping blocks 1. At this time, the tooling provided in this application is needed to reduce misalignment and make the adjacent capping blocks 1 form a smooth arc surface as much as possible. See Figure 2 , Figure 4 as well as Figure 5 A tapered bolt hole 101 is provided near one end or at both ends of the capping block 1, allowing the tapered bolt 2 to be screwed in. An arc-shaped mounting plate 3 is fitted to the curved surface of the side with the smaller diameter (i.e., the inner end) of the two adjacent capping blocks 1. The mounting plate 3 is made of a high-strength alloy material plate and has a certain deformation capacity. A pair of mounting holes 301 with a certain inclination are symmetrically provided at both ends of the plate. See Figure 7 In this embodiment, the mounting hole 301 is a cylindrical hole, and the through hole is matched with the shaft of the tapered bolt 2. The two tapered bolts 2 are installed at both ends of the mounting plate 3 in a rotatable but fixed position. At this time, the two tapered bolts 2 are inserted into the mounting holes 301 at both ends and fit against the inner curved surface of the capping block 1. A limiting component is provided on the curved surface of the mounting plate 3 on the side away from the capping block 1 to fasten the mounting plate 3 to the two capping blocks 1, thereby reducing misalignment. The limiting component includes a limiting plate 4. (See reference...) Figure 9 The limiting plate 4 is a rectangular plate made of rigid material with a certain thickness. An adjustment hole 402 is provided in the middle of the plate. The adjustment hole 402 is a circular hole. Limiting holes 401 are symmetrically provided at both ends of the limiting plate 4 at a certain angle to the plate surface. In this embodiment, the limiting hole 401 is a strip-shaped hole, and a fastening screw 5 is fixed to the middle of the inner curved surface of the mounting plate 3 by welding or other means. When the mounting plate 3 is attached to the top block 1, the fastening screw 5 is exactly located at the joint formed between the two top blocks 1. The limiting plate 4 is installed on the mounting plate 3 by inserting the fastening screw 5 into the adjusting hole 402 in the middle and inserting the rods of the two tapered bolts 2 located outside the top block 1 into the limiting holes 401 at both ends of the limiting plate 4, thereby limiting the two tapered bolts 2. A limiting nut 6 is threaded onto the fastening screw 5. After the limiting plate 4 is installed on the mounting plate 3, the limiting nut 6 is screwed into the fastening screw 5 and tightened. Through the fastening effect of the limiting nut 6 on the limiting plate 4, combined with the rods of the tapered bolts 2 inserted at both ends of the limiting plate 4, and the fastening effect between the limiting plate 4 and the mounting plate 3, the tooling of this application forms a stable fixed structure. This improves the stability of the adjacent edges of the capping block 1 while reducing the misalignment between two adjacent capping blocks 1. Example 2

[0020] See Figure 3 , Figure 6 as well as Figure 8 In this embodiment, the mounting holes 301 at both ends of the mounting plate 3 are strip-shaped holes, and the width and inner diameter of the strip-shaped holes match the shaft of the tapered bolt 2. Therefore, in this embodiment, during installation, the two tapered bolts 2 can be screwed into the bolt holes 101 on the capping block 1 first, and then the mounting plate 3 can be installed along the strip-shaped mounting holes 301 and the shaft of the tapered bolt 2. Then, the limiting plate 4 and the limiting nut 6 can be installed in the same way as in embodiment 1 to complete the installation of this tooling.

[0021] Working principle: Depending on the specific shape of the mounting holes on the mounting plate 3, select to screw the two tapered bolts 2 into the pre-set bolt holes 101 of the capping block 1, and put the mounting plate 3 onto the body of the tapered bolts 2 through the mounting holes 301 at both ends, so that it fits against the two capping blocks 1, or select to directly install the mounting plate 3 that matches the tapered bolts 2 with the curved surface of the capping block 1, and tighten the tapered bolts 2 into the bolt holes 101 at the same time; By inserting the fastening screw 5 into the adjusting hole 402 in the middle, and simultaneously inserting the rods of the two tapered bolts 2 into the limiting holes 401 at both ends of the limiting plate 4, the limiting plate 4 is installed onto the mounting plate 3. Then, the fastening nut 6 is put onto the fastening screw 5 and tightened to strengthen the connection between the limiting plate 4, the mounting plate 3 and the tapered bolts 2, so as to reduce the misalignment phenomenon caused by the contact position of two adjacent capping blocks.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A tooling for controlling misalignment of capping blocks, comprising two adjacent capping blocks (1), characterized in that, Also includes: A pair of tapered bolts (2), each tapered bolt (2) is respectively set on two capping blocks (1); Mounting plate (3) is set on the curved surface at the inner end of the two capping blocks (1), and its two ends are penetrated by the rod of the tapered bolt (2); The limiting component is set on the mounting plate (3) to make the mounting plate (3) and the capping block (1) securely connected, so as to control the misalignment between the two capping blocks (1).

2. The tooling for controlling misalignment of the capping block according to claim 1, characterized in that, The limiting components include: Fastening screw (5) is set on mounting plate (3); The limiting plate (4) is set on the fastening screw (5), and its two ends are penetrated by the rod of the tapered bolt (2); The limiting nut (6) is set on the fastening screw (5) and is used to fasten the limiting plate (4) to the mounting plate (3).

3. The tooling for controlling misalignment of the capping block according to claim 2, characterized in that: The mounting plate (3) has symmetrical mounting holes (301) at both ends for passing through the rod of the tapered bolt (2).

4. The tooling for controlling misalignment of the capping block according to claim 3, characterized in that: The mounting hole (301) is either a strip hole or a round hole.

5. The tooling for controlling misalignment of the capping block according to claim 4, characterized in that: The limiting plate (4) has symmetrical limiting holes (401) at both ends for passing through the rod of the tapered bolt (2).

6. The tooling for controlling misalignment of the capping block according to claim 5, characterized in that: The limiting hole (401) is a strip-shaped hole.

7. The tooling for controlling misalignment of the capping block according to claim 6, characterized in that: The limiting plate (4) and the fastening screw (5) are set perpendicular to each other.

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