A steel segment for a tunneling machine

Abstract

The utility model relates to shield equipment technical field especially relates to a kind of steel pipe piece for shield machine. Including inner ring plate and outer ring plate, two first installation plates are fixed between the inner ring plate and outer ring plate, two first installation plates are away from the side of second installation plate, interval is set between first installation plate and second installation plate, second installation plate is fixedly connected with inner ring plate, counterweight is detachably set on second installation plate, counterweight passes through first installation plate. The weight of steel pipe piece is adjusted by the counterweight detachably on second installation plate, the load capacity of the pipe piece assembling machine of various specifications is facilitated to detect, improves the detection efficiency while saving the manufacturing cost of steel pipe piece.

Description

Technical Field

[0001] This utility model relates to the field of tunnel boring machine technology, and in particular to a steel segment for tunnel boring machines. Background Technology

[0002] The segment assembly machine is an important component of the tunnel boring machine (TBM). During TBM assembly, the proper functioning of the segment assembly machine is crucial. Therefore, the load-bearing capacity of the segment assembly machine needs to be tested in the factory. Most existing steel segments are integrally welded, and their weight cannot be adjusted after welding. Furthermore, the required weight of steel segments varies depending on the project, with a single steel segment typically weighing between 5 and 14 tons, making weight adjustment impossible as needed. Summary of the Invention

[0003] To address the problem that existing steel segments cannot be weighted according to needs, this invention proposes a steel segment for tunnel boring machines. The weight of the steel segment is adjusted by a detachable counterweight on a second mounting plate, which facilitates the testing of the load capacity of segment assembly machines of various specifications, improves testing efficiency, and saves on the manufacturing cost of the steel segments.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows: A steel segment for a tunnel boring machine includes an inner ring plate and an outer ring plate. Two opposing first mounting plates are fixed between the inner and outer ring plates. A second mounting plate is mounted on each of the two first mounting plates on opposite sides. A gap exists between the first and second mounting plates. The second mounting plates are fixedly connected to the inner ring plate. A counterweight is detachably mounted on the second mounting plate, passing through the first mounting plate. The longitudinal sections of the first, second, inner, and outer ring plates are all fan-shaped, and their axes coincide.

[0005] Preferably, there are multiple counterweights evenly distributed on the second mounting plate. The number of counterweights is odd, with one counterweight fixed in the center of the second mounting plate, and the other counterweights symmetrical about the center counterweight.

[0006] Preferably, through slots are provided at corresponding positions of the first mounting plate and the second mounting plate, and the two ends of the counterweight pass through the through slots of the first mounting plate and the second mounting plate. The two second mounting plates are fixed with fixing plates by bolts on the side away from the first mounting plate, and the inner side of the fixing plates contacts the counterweight.

[0007] Preferably, the end face of the counterweight is flush with the outer side of the second mounting plate.

[0008] Preferably, both ends of the first mounting plate and the second mounting plate are fixed with end plates, which are located between the inner ring plate and the outer ring plate and are fixedly connected to the inner ring plate and the outer ring plate.

[0009] Preferably, a lifting lug is fixed on the side of the end plate away from the first mounting plate and the second mounting plate.

[0010] Preferably, a reinforcing rib is fixed between the inner ring plate and the outer ring plate, and the reinforcing rib is fixedly connected to the first mounting plate and the second mounting plate. This improves the connection strength and ensures the safety of the steel pipe segment.

[0011] Preferably, a fixing block is fixed to the side of the inner ring plate away from the outer ring plate. A positioning hole is provided in the fixing block to position the cone head on the vacuum suction cup.

[0012] The beneficial effects of this utility model through the above technical solution are as follows: 1. In this utility model, the counterweight on the second mounting plate is detachable. The weight of the steel pipe segment can be adjusted by adding or removing the counterweight on the second mounting plate. This allows for testing of the load capacity of various specifications of pipe segment assembly machines, ensuring that they meet the needs of actual use. Compared with the steel pipe segments that previously required on-site welding, this not only improves efficiency but also reduces production costs.

[0013] 2. In this utility model, both the first mounting plate and the second mounting plate are provided with corresponding through slots. The counterweight passes through the through slots of the second mounting plate, the first mounting plate, the first mounting plate and the second mounting plate in sequence. Then, the fixing plate, which is fixed by bolts, holds the counterweight against the first mounting plate and the second mounting plate. When disassembling, only the fixing plate on one side needs to be removed to remove the counterweight, which is relatively simple to operate. Attached Figure Description

[0014] Figure 1 This is a front view of a steel pipe segment for a tunnel boring machine according to the present invention; Figure 2 This is a bottom view of a steel segment for a tunnel boring machine according to the present invention; Figure 3 This utility model relates to a steel segment for a tunnel boring machine. Figure 1 Structural cross-sectional view at point BB; Figure 4 This utility model relates to a steel segment for a tunnel boring machine. Figure 1 A cross-sectional view of the structure at point CC.

[0015] In the attached diagram, the numbers are as follows: 1 is the inner ring plate, 2 is the outer ring plate, 3 is the first mounting plate, 4 is the second mounting plate, 5 is the counterweight block, 6 is the through groove, 7 is the fixing plate, 8 is the end plate, 9 is the lifting lug, 10 is the reinforcing rib plate, and 11 is the fixing block. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments: like Figures 1-4As shown, this embodiment provides a steel segment for a tunnel boring machine, including an inner ring plate 1 and an outer ring plate 2, as referenced. Figure 1 The longitudinal section of the inner ring plate 1 is fan-shaped. A fixing block 11 is fixed on the side of the inner ring plate 1 away from the outer ring plate 2. A positioning hole is opened on the fixing block 11. The cone head on the vacuum suction cup of the segment assembly machine is inserted into the positioning hole. The longitudinal section of the outer ring plate 2 is also fan-shaped.

[0017] refer to Figure 2 and Figure 3 Two opposing first mounting plates 3 are welded and fixed between the inner ring plate 1 and the outer ring plate 2. The two first mounting plates 3 are located on both sides of the outer ring plate 2. A second mounting plate 4 is provided on the side of the two first mounting plates 3 that is far apart from each other. There is a gap between the first mounting plates 3 and the second mounting plates 4. The second mounting plates 4 are welded and fixed to the inner ring plate 1. In this embodiment, the longitudinal section of the first mounting plate and the second mounting plate is also fan-shaped, and its longitudinal section coincides with the axis of the longitudinal section of the inner ring plate 1 and the outer ring plate 2.

[0018] Furthermore, a counterweight 5 is detachably mounted on the second mounting plate 4. The counterweight 5 passes through the first mounting plate 3. Specifically, a through groove 6 is provided at the corresponding position of the first mounting plate 3 and the second mounting plate 4. The two ends of the counterweight 5 pass through the through groove 6 of the first mounting plate 3 and the second mounting plate. A fixing plate 7 is fixed to the side of the two second mounting plates 4 away from the first mounting plate 3 by bolts. The inner side of the fixing plate 7 contacts the counterweight 5. The end face of the counterweight 5 is flush with the outer side of the second mounting plate 4.

[0019] The counterweights 5 are multiple and evenly distributed on the second mounting plate 4. In this embodiment, there are 9 counterweights 5, one of which is located in the middle of the second mounting plate 4, and the other 8 are symmetrically arranged in pairs relative to the counterweights 5 in the middle.

[0020] Furthermore, end plates 8 are fixed to both ends of the first mounting plate 3 and the second mounting plate 4. The end plates 8 are located between the inner ring plate 1 and the outer ring plate 2 and are fixedly connected to the inner ring plate 1 and the outer ring plate 2. A lifting lug 9 is fixed to the side of the end plate 8 away from the first mounting plate 3 and the second mounting plate 4 for subsequent hoisting of the steel pipe segments.

[0021] At the same time, refer to Figure 4 Four reinforcing ribs 10 are welded and fixed between the inner ring plate 1 and the outer ring plate 2. The reinforcing ribs 10 are fixedly connected to the first mounting plate 3 and the second mounting plate 4. The reinforcing ribs 10 and the end plate 8 connect the steel pipe segments more tightly, ensuring the safety and stability of the entire steel pipe segment.

[0022] When using this device, the load capacity of the segment assembly machine produced in the factory is first tested by increasing or decreasing the number of steel segments according to design requirements. When the load capacity of the produced segment assembly machine decreases compared to before, some counterweights need to be removed. Specific operation: The steel pipe segment is placed on a platform using the hoisting equipment and the lifting lugs 9 on the steel pipe segment. Then, the four bolts on the fixing plate 7 are removed, and the fixing plate 7 is removed. After the machine is connected and fixed to the end of the counterweight 5, the counterweight 5 is pulled out. Multiple counterweights are pulled out in sequence as needed. The conical head on the vacuum suction cup of the pipe segment assembly machine is inserted into the positioning hole of the fixing block 11. Then, the vacuum suction cup is activated to pick up the steel pipe segment for subsequent movement. This allows us to test whether the load capacity of the pipe segment assembly machine meets the project requirements.

[0023] Meanwhile, this steel pipe segment can also be applied to actual sites, with the same working principle as described above. The number of counterweights can be selected according to the pressure to be borne, which can improve construction efficiency.

[0024] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the patent claims of this utility model should be included within the scope of the patent application of this utility model.

Claims

1. A type of steel segment for a tunnel boring machine, characterized in that, It includes an inner ring plate (1) and an outer ring plate (2). Two opposing first mounting plates (3) are fixed between the inner ring plate (1) and the outer ring plate (2). A second mounting plate (4) is provided on the side of the two first mounting plates (3) that are far apart. There is a gap between the first mounting plate (3) and the second mounting plate (4). The second mounting plate (4) is fixedly connected to the inner ring plate (1). A counterweight (5) is detachably provided on the second mounting plate (4). The counterweight (5) passes through the first mounting plate (3).

2. The steel segment for a tunnel boring machine according to claim 1, characterized in that, The counterweights (5) are multiple and are evenly distributed on the second mounting plate (4).

3. A steel segment for a tunnel boring machine according to claim 1, characterized in that, The first mounting plate (3) and the second mounting plate (4) are provided with through slots (6) at corresponding positions. The two ends of the counterweight (5) pass through the through slots (6) of the first mounting plate (3) and the second mounting plate. The two second mounting plates (4) are fixed with fixing plates (7) by bolts on the side away from the first mounting plate (3). The inner side of the fixing plate (7) contacts the counterweight (5).

4. A steel segment for a tunnel boring machine according to claim 3, characterized in that, The end face of the counterweight (5) is flush with the outer side of the second mounting plate (4).

5. A steel segment for a tunnel boring machine according to claim 1, characterized in that, Both ends of the first mounting plate (3) and the second mounting plate (4) are fixed with end plates (8). The end plates (8) are located between the inner ring plate (1) and the outer ring plate (2) and are fixedly connected to the inner ring plate (1) and the outer ring plate (2).

6. A steel segment for a tunnel boring machine according to claim 5, characterized in that, The end plate (8) is fixed with a lifting lug (9) on the side away from the first mounting plate (3) and the second mounting plate (4).

7. A steel segment for a tunnel boring machine according to claim 1, characterized in that, A reinforcing rib plate (10) is also fixed between the inner ring plate (1) and the outer ring plate (2), and the reinforcing rib plate (10) is fixedly connected to the first mounting plate (3) and the second mounting plate (4).

8. A steel segment for a tunnel boring machine according to claim 1, characterized in that, A fixing block (11) is fixed on the side of the inner ring plate (1) away from the outer ring plate (2).

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