A segment assembling and positioning device for a shield tunneling machine

Abstract

The utility model discloses a segment assembling and positioning device for shield machine relates to tunnel construction auxiliary technical field. The utility model discloses a device main body, and the both sides of the bottom of device main body are rotatably connected with support frame, and the bottom of device main body is provided with adjustable telescopic link, and the both sides of support frame bottom are slidably connected with movable link, and the bottom of movable link and adjustable telescopic link are all fixedly connected with the board of holding, and the one side of board of holding is movably provided with laser sensor. The utility model discloses a board of holding is placed on the surface of segment, and the limiting plate outside one side board of holding is held in the lateral edge outside segment, and the laser sensor parallel with the inner wall of segment is moved by telescopic motor, when segment assembling is not level, and the light beam of moving will be irradiated on the inner wall of butt joint segment through the air slot.

Description

Technical Field

[0001] This utility model belongs to the field of tunnel construction auxiliary technology, and in particular relates to a segment assembly and positioning device for a tunnel boring machine. Background Technology

[0002] The shield tunneling method is a construction method that uses a tunnel boring machine (TBM) to excavate underground, and then excavates and lines the tunnel under the protection of a shield shell to form a tunnel. The lining of a shield tunnel is composed of several precast reinforced concrete segments connected by bolts. The segments and joints together form the tunnel lining structure. Therefore, the quality and efficiency of the segment assembly directly affect the mechanical properties of the structure, the safe use of the project, and the cost.

[0003] According to CN216115909U, a shield tunnel segment assembly and positioning device includes a first support rod, a second support rod, and a third support rod. A laser emitter is installed at the upper end of each of the first, second, and third support rods. A fixing toothed plate is fixedly connected to the inner side of each of the second and third support rods, and a first compression spring is sleeved at both ends of the fixing shaft. One end of the first compression spring is fixedly connected to a movable tooth pressure plate matching the fixing tooth, and the other end of the first compression spring is fixedly connected to the surface of the first support rod. This invention, by setting up a first, second, and third support rod and installing laser emitters on each of the three support rods, uses three sets of laser emitters to emit beams during shield segment positioning and inspection to detect the flatness of the shield segments, thus improving the positioning accuracy of the shield segments and significantly enhancing the quality of shield segment assembly. However, the application cannot be stably supported on the inner wall of the tube segment by the support plate alone, and it cannot guarantee that the laser emitter is stable and parallel to the assembled tube segment during the test, which affects the detection effect of the beam and needs to be improved. Utility Model Content

[0004] The purpose of this utility model is to provide a segment assembly and positioning device for tunnel boring machines. A drive motor extends and retracts a movable rod to change the length of the two side support plates. Adjusting the length of the middle support plate, in conjunction with the extension and retraction of the telescopic rod, accommodates segments with different curvatures. The position of the connecting block is changed by the extension and retraction of the electric telescopic rod, and the angle of the support frames on both sides is adjusted by the telescopic connecting rod, thereby changing the angle of the two side support plates to accommodate segments of different sizes. This solves the existing problems. To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model is a segment assembly and positioning device for a tunnel boring machine, including a device body, a support frame rotatably connected to both sides of the bottom end of the device body, an adjustable telescopic rod provided at the bottom end of the device body, movable rods slidably connected to both sides of the bottom end of the support frame, a support plate fixedly connected to the bottom end of both the movable rod and the adjustable telescopic rod, and a laser sensor movably provided on one side of the support plate; The bottom end of the abutment plate is provided with a slot, and the bottom ends of one side of the abutment plate are provided with limit plates.

[0005] Furthermore, a connecting block is movably sleeved on the outer side of one end of the adjusting telescopic rod, and telescopic connecting rods are rotatably connected to both ends of the connecting block. The other end of the telescopic connecting rod is rotatably connected to the support frame.

[0006] Furthermore, an electric telescopic rod is provided between the connecting block and both sides of the adjusting telescopic rod, and the connecting block is movably connected to one end of the adjusting telescopic rod through the electric telescopic rod.

[0007] Furthermore, the bottom end of the abutment plate is arc-shaped, and an anti-slip rubber pad is provided at the bottom end of the abutment plate.

[0008] A telescopic motor is provided on one side of the laser sensor. The laser sensor is located on one side of the empty slot and is parallel to the support plate. The laser sensor is movably connected to the empty slot through the telescopic motor.

[0009] Furthermore, a movable sleeve is symmetrically arranged on one side of the support frame. The inner wall size of the movable sleeve is adapted to the size of the movable rod. Limiting blocks are provided on both sides of one end of the movable rod. Sliding grooves adapted to the limiting blocks are opened on both sides of the inner wall of the movable sleeve. The limiting blocks are slidably connected to the movable sleeve through the sliding grooves.

[0010] Furthermore, a drive motor is provided at one end of the inner wall of the movable sleeve, a drive screw is provided at one end of the drive motor, and a threaded groove is provided at one end of the movable rod. The drive motor is connected to the movable rod through the drive screw.

[0011] This utility model has the following beneficial effects: 1. A connecting block is movably sleeved on the outer side of one end of the adjusting telescopic rod. Telescopic connecting rods are rotatably connected to both ends of the connecting block. The other end of the telescopic connecting rod is rotatably connected to the support frame. An electric telescopic rod is installed between the connecting block and both sides of the adjusting telescopic rod. The connecting block is movably connected to one end of the adjusting telescopic rod through the electric telescopic rod. The position of the middle abutment plate is adjusted by extending and retracting the telescopic rod. The position of the connecting block is changed by extending and retracting the electric telescopic rod, which, in conjunction with the telescopic connecting rod, changes the angle of the support frame on both sides, thereby changing the angle of the abutment plate on both sides to accommodate segments of different sizes.

[0012] 2. A telescopic motor is installed on one side of the laser sensor. The laser sensor is set on one side of the empty slot and is parallel to the support plate. Multiple support plates abut against the surface of the tunnel segment, keeping it parallel to the surface of the tunnel segment. The parallelism between the laser sensor and the support plate makes the test beam correspond to the angle of the tunnel segment. The laser sensor is movably connected to the empty slot through the telescopic motor. The telescopic motor drives the laser sensor to move, which in turn moves the test beam to fit the side of the tunnel segment. When the tunnel segment is not assembled evenly, the moving beam will irradiate the inner wall of the tunnel segment, improving the accuracy of the shield tunnel segment positioning.

[0013] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the main structure of the present utility model; Figure 2 This is a schematic diagram of the adjustable telescopic rod structure of this utility model; Figure 3 This is a schematic diagram of the internal structure of the support frame of this utility model; Figure 4 This is a schematic diagram of the supporting plate structure of this utility model.

[0016] The attached diagram lists the components represented by each number as follows: 1. Main body of the device; 2. Support frame; 201. Movable sleeve; 202. Sliding groove; 203. Drive motor; 204. Drive screw; 3. Adjustable telescopic rod; 4. Movable rod; 401. Limiting block; 5. Supporting plate; 501. Empty groove; 502. Limiting plate; 6. Laser sensor; 601. Telescopic motor; 7. Connecting block; 701. Telescopic connecting rod; 702. Electric telescopic rod. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-4This utility model is a segment assembly and positioning device for a tunnel boring machine, including a device body 1. Support frames 2 are rotatably connected to both sides of the bottom end of the device body 1. Adjustable telescopic rods 3 are provided at the bottom end of the device body 1. Movable rods 4 are slidably connected to both sides of the bottom end of the support frames 2. Support plates 5 are fixedly connected to the bottom ends of both the movable rods 4 and the adjustable telescopic rods 3. A laser sensor 6 is movably arranged on one side of the support plate 5. A slot 501 is opened at the bottom end of the support plate 5. Limit plates 502 are provided at both ends of the bottom of one side of the support plate 5.

[0019] See details Figure 2 In this embodiment, a connecting block 7 is movably sleeved on the outer side of one end of the adjusting telescopic rod 3. Telescopic connecting rods 701 are rotatably connected to both ends of the connecting block 7. The other end of the telescopic connecting rod 701 is rotatably connected to the support frame 2. An electric telescopic rod 702 is provided between the connecting block 7 and both sides of the adjusting telescopic rod 3. The connecting block 7 is movably connected to one end of the adjusting telescopic rod 3 through the electric telescopic rod 702. The position of the middle abutment plate 5 is adjusted by extending and retracting the adjusting telescopic rod 3. The position of the connecting block 7 is changed by extending and retracting the electric telescopic rod 702, and the angle of the support frame 2 on both sides is adjusted in conjunction with the telescopic connecting rod 701, thereby changing the angle of the abutment plate 5 on both sides to cope with the segments of different sizes.

[0020] The bottom end of the abutment plate 5 is arc-shaped, which makes it easy to abut against the surface of the tube segment. The bottom end of the abutment plate 5 is provided with an anti-slip rubber pad to increase the friction between the abutment plate 5 and the surface of the tube segment and prevent slippage during abutment.

[0021] Reference Figure 3 In this embodiment, a movable sleeve 201 is symmetrically arranged on one side of the support frame 2. The inner wall size of the movable sleeve 201 is adapted to the size of the movable rod 4. Limiting blocks 401 are provided on both sides of one end of the movable rod 4. Sliding grooves 202 adapted to the limiting blocks 401 are opened on both sides of the inner wall of the movable sleeve 201. The limiting blocks 401 are slidably connected to the movable sleeve 201 through the sliding grooves 202. The movable rod 4 can slide in the movable sleeve 201. At the same time, the sliding of the limiting blocks 401 in the sliding grooves 202 limits and guides the movable rod 4.

[0022] A drive motor 203 is provided at one end of the inner wall of the movable sleeve 201, and a drive screw 204 is provided at one end of the drive motor 203. A threaded groove is provided at one end of the movable rod 4. The drive motor 203 is connected to the movable rod 4 through the drive screw 204. The drive motor 203 drives the drive screw 204 to rotate, and the drive screw 204 drives the movable rod 4 through the corresponding threaded groove. The limit block 401 limits the movement of the movable rod 4, so that the drive motor 203 drives the movable rod 4 to extend and retract.

[0023] See details Figure 4In this embodiment, a telescopic motor 601 is provided on one side of the laser sensor 6. The laser sensor 6 is located on one side of the slot 501 and is parallel to the abutment plate 5. Multiple abutment plates 5 abut against the surface of the tunnel segment and remain parallel to the surface of the tunnel segment. The parallelism between the laser sensor 6 and the abutment plate 5 makes the test beam correspond to the angle of the tunnel segment. The laser sensor 6 is movably connected to the slot 501 through the telescopic motor 601. The telescopic motor 601 drives the laser sensor 6 to move, which drives the test beam to move to fit the side of the tunnel segment. When the tunnel segment is not assembled evenly, the moving beam will irradiate the inner wall of the tunnel segment, which improves the accuracy of the shield tunnel segment positioning.

[0024] A specific application of this embodiment is as follows: In use, the drive motor 203 drives the drive screw 204 to rotate. The drive screw 204 drives the movable rod 4 through the corresponding thread groove, and the limiting block 401 limits the movement of the movable rod 4, thereby driving the movable rod 4 to extend and retract to change the length of the two side abutment plates 5. In conjunction with adjusting the telescopic rod 3, the length of the middle abutment plate 5 is adjusted to accommodate tube segments with different curvatures. The position of the connecting block 7 is changed by extending and retracting the electric telescopic rod 702. In conjunction with the telescopic connecting rod 701, the angle of the two side support frames 2 is adjusted, thereby changing the angle of the two side abutment plates 5 to accommodate tube segments of different sizes. After adjusting the length and angle of the abutment plate 5 to the required position, the abutment plate 5 is placed on the surface of the tube segment. The limiting plate 502 on the outer side of one side abutment plate 5 abuts against the outer edge of the tube segment. The telescopic motor 601 drives the laser sensor 6, which is parallel to the inner wall of the tube segment, to move. When the tube segments are not assembled evenly, the moving beam of light will irradiate the inner wall of the docked tube segments.

[0025] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0026] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A segment assembly and positioning device for a tunnel boring machine, comprising a device body (1), characterized in that: The bottom of the main body (1) of the device is rotatably connected to the two sides of the support frame (2). The bottom of the main body (1) of the device is provided with an adjusting telescopic rod (3). The bottom of the support frame (2) is slidably connected to the two sides of the support frame (2). The bottom of the movable rod (4) and the adjusting telescopic rod (3) are both fixedly connected to the abutment plate (5). A laser sensor (6) is movably provided on one side of the abutment plate (5). The bottom end of the abutment plate (5) is provided with a slot (501), and the bottom ends of the abutment plate (5) on one side are provided with limit plates (502).

2. The segment assembly and positioning device for a tunnel boring machine according to claim 1, characterized in that, One end of the adjusting telescopic rod (3) is movably sleeved with a connecting block (7), and both ends of the connecting block (7) are rotatably connected with telescopic connecting rods (701). The other end of the telescopic connecting rods (701) is rotatably connected to the support frame (2).

3. A segment assembly and positioning device for a tunnel boring machine according to claim 2, characterized in that, An electric telescopic rod (702) is provided between the connecting block (7) and the two sides of the adjusting telescopic rod (3). The connecting block (7) is movably connected to one end of the adjusting telescopic rod (3) through the electric telescopic rod (702).

4. A segment assembly and positioning device for a tunnel boring machine according to claim 1, characterized in that, The bottom end of the abutment plate (5) is arc-shaped, and an anti-slip rubber pad is provided at the bottom end of the abutment plate (5).

5. A segment assembly and positioning device for a tunnel boring machine according to claim 4, characterized in that, A telescopic motor (601) is provided on one side of the laser sensor (6). The laser sensor (6) is located on one side of the empty slot (501) and is arranged parallel to the support plate (5). The laser sensor (6) is movably connected to the empty slot (501) through the telescopic motor (601).

6. A segment assembly and positioning device for a tunnel boring machine according to claim 1, characterized in that, The support frame (2) is symmetrically provided with a movable sleeve (201) on one side. The inner wall size of the movable sleeve (201) is adapted to the size of the movable rod (4). Limiting blocks (401) are provided on both sides of one end of the movable rod (4). Sliding grooves (202) adapted to the limiting blocks (401) are opened on both sides of the inner wall of the movable sleeve (201). The limiting blocks (401) are slidably connected to the movable sleeve (201) through the sliding grooves (202).

7. A segment assembly and positioning device for a tunnel boring machine according to claim 6, characterized in that, A drive motor (203) is provided at one end of the inner wall of the movable sleeve (201), a drive screw (204) is provided at one end of the drive motor (203), and a threaded groove is provided at one end of the movable rod (4). The drive motor (203) is connected to the movable rod (4) through the drive screw (204).

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