A sheet feeding machine for a shield tunneling machine

Abstract

This utility model relates to the technical field of tunnel boring machine (TBM) segment feeders, and more particularly to a TBM segment feeder, comprising a fixed base plate, a mounting slide rail fixedly mounted on the top of the fixed base plate, and a pad fixedly mounted on the top of the mounting slide rail. A hydraulic push rod slides to connect the pusher to the top of the fixed base plate via a sliding engagement, and a limiting block on the inner wall of the right end of the fixed base plate allows for precise control of the segment pushing stroke. When the hydraulic push rod drives the pusher to move, the segment is pushed to the position contacting the limiting block, effectively avoiding the segment offset problem caused by inaccurate stroke control in traditional segment feeders. An oblique guide block on the left end of the first side frame provides oblique guidance when the segment is transported from right to left. This, along with a sliding pad on the top of the guide side frame and abutment against the tunnel inner wall, is symmetrically arranged at the front and rear ends of the fixed base plate, further constraining the segment transport trajectory, improving segment positioning accuracy, and significantly enhancing the quality of subsequent segment assembly.

Description

Technical Field

[0001] This utility model relates to the technical field of sheet feeders for tunnel boring machines, and in particular to a sheet feeder for tunnel boring machines. Background Technology

[0002] In modern tunnel engineering construction, tunnel boring machines (TBMs), as highly efficient underground excavation equipment, are widely used in the construction of tunnels for subways, highways, and railways. During the excavation process, TBMs need to provide timely segment support to the excavated tunnel walls to ensure the stability of the tunnel structure and construction safety. The segment feeder, as a key supporting equipment for TBMs, primarily functions to accurately and efficiently transport prefabricated segments to designated locations for assembly operations.

[0003] Traditional tunnel boring machine (TBM) segment feeders have several shortcomings in practical applications. Some feeders have inadequate structural designs, leading to low positioning accuracy and potential deviations during segment transport. Others have low levels of automation, requiring significant manual operation and adjustments, increasing labor intensity and construction costs. Furthermore, traditional feeders are poorly adaptable to different tunnel specifications and types, failing to meet diverse construction needs. Therefore, developing a TBM segment feeder with optimized structure, accurate positioning, high automation, and strong adaptability is of significant practical importance. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a segment feeding machine for tunnel boring machines. It solves the problems of some segment feeding machines having unreasonable structural designs, resulting in low positioning accuracy and easy deviation during segment transportation; some segment feeding machines have low automation levels, requiring a lot of manual operation and adjustment, which increases labor intensity and construction costs; and traditional segment feeding machines have poor adaptability to different specifications and types of tunnel construction environments, making it difficult to meet diverse construction needs.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a feeder for a tunnel boring machine, comprising a fixed base plate, an installation slide rail fixedly mounted on the top of the fixed base plate, a first shim fixedly mounted on the top of the installation slide rail, side frames fixedly mounted on the front and rear ends of the fixed base plate, a second shim fixedly mounted on the top of the side frames, a fixed slide bracket fixedly mounted on the top of the middle section of the fixed base plate, a hydraulic push rod fixedly mounted on the left end of the fixed slide bracket, a pusher fixedly connected to the output end of the hydraulic push rod, a limit block fixedly connected to the inner wall of the right end of the fixed base plate, a first side frame fixedly mounted on the outer wall of the front and rear ends of the right end of the fixed base plate, a first transmission wheel connected to the inner wall of the first side frame, a transmission belt connected to the outer wall of the first transmission wheel, a second side frame fixedly mounted on the outer wall of the front and rear ends of the left end of the fixed base plate, a second transmission wheel connected to the inner wall of the second side frame, a second transmission belt connected to the outer wall of the second transmission wheel, a guide side frame hinged to the inner wall of the outer side of the second side frame, and a sliding pad fixedly connected to the bottom of the top outer wall of the guide side frame.

[0006] A further improvement is that the mounting slide rails are symmetrically arranged on the front and rear sections of the top of the fixed base plate; the mounting slide rails are symmetrically arranged on the front and rear sections of the top of the fixed base plate, and the first pad installed on the top of the mounting slide rails can play a certain role in buffering and supporting the components installed on the slide rails, reducing the wear of the components during the sliding process; the side frames at the front and rear ends of the fixed base plate not only enhance the stability of the overall structure, but the second pad installed on the top of the mounting slide rails are symmetrically arranged, providing a flat and stable mounting base for other equipment or structures that may be connected above.

[0007] A further improvement is that the second gasket is symmetrically arranged on the top of the front and rear side frames; the first side frame on the outer wall of the front and rear ends of the right end of the fixed substrate has a transmission wheel on its inner wall connected by a transmission belt; the transmission system, driven by the power device, drives the transmission belt to rotate, thereby transmitting power to the relevant components, which may be used for the initial conveying or positioning adjustment of the tube sheet before it enters the feeding machine.

[0008] A further improvement is that the hydraulic push rod is slidably connected to the fixed base plate and the inner wall of the mounting slide rail; the oblique guide block at the left end of the first side frame can obliquely guide the tube sheet conveyed from right to left, so that the tube sheet can accurately enter the conveying track of the feeding machine and reduce the deviation and jamming during the tube sheet conveying process.

[0009] A further improvement is that the pusher is slidably connected to the top of the fixed substrate; the output end of the hydraulic pusher is fixedly connected to the pusher, and when the hydraulic pusher extends, it pushes the pusher to slide on the top of the fixed substrate, thereby conveying the tube segments placed on the pusher forward; when the hydraulic pusher retracts, the pusher returns to its original position, ready for the next tube segment push.

[0010] A further improvement is that an oblique guide block is fixedly connected to the left end of the first side frame for obliquely guiding the tube sheet from right to left; the first side frame with the outer wall of the front and rear ends of the right end of the fixed substrate has a transmission wheel on its inner wall connected by a transmission belt; the transmission system drives the transmission belt to rotate under the drive of the power device, thereby transmitting power to the relevant components, which may be used for the initial conveying or positioning adjustment of the tube sheet before it enters the feeding machine.

[0011] A further improvement is that the guide side frame is symmetrically arranged at the front and rear ends of the fixed base plate, and the sliding pad abuts against the inner wall of the tunnel opened by the shield machine; the second side frame on the outer wall of the front and rear ends of the left end of the fixed base plate has a transmission wheel two on its inner wall that is driven by a transmission belt two, which cooperates with the transmission system of the first side frame to complete the process of conveying the segments in the segment feeder; the guide side frame hinged to the inner wall of the outer side of the second side frame is symmetrically arranged at the front and rear ends of the fixed base plate, and the sliding pad at the bottom of its top outer wall always abuts against the inner wall of the tunnel opened by the shield machine.

[0012] By employing the above technical solution, this utility model provides a feeder for tunnel boring machines, which has at least the following beneficial effects:

[0013] 1. This utility model utilizes the sliding cooperation between a hydraulic push rod and a push frame, with the push frame slidably connected to the top of a fixed base plate. Combined with a limiting block on the inner wall of the right end of the fixed base plate, the pushing stroke of the tube segment can be precisely controlled. When the hydraulic push rod drives the push frame to move, the tube segment is pushed to the position where it contacts the limiting block, effectively avoiding the tube segment deviation problem caused by inaccurate stroke control in traditional tube feeding machines. The oblique guide block on the left end of the first side frame provides oblique guidance when the tube segment is conveyed from right to left. Together with the sliding pad on the top of the guide side frame and the abutment guide side frame on the inner wall of the tunnel, they are symmetrically arranged at the front and rear ends of the fixed base plate, further constraining the conveying trajectory of the tube segment, improving the positioning accuracy of the tube segment, and significantly improving the quality of subsequent tube segment assembly.

[0014] 2. The installation slide rails of this utility model are symmetrically arranged on the front and rear sections of the top of the fixed base plate. The first pad on the top of the slide rail and the second pad symmetrically arranged on the top of the side frame together form a double-rail support structure, which effectively distributes the weight of the tunnel segment and reduces component wear. The coordinated transmission of the first transmission wheel and the first transmission belt, and the second transmission wheel and the second transmission belt, combined with the power output of the hydraulic push rod, form a composite power system of "mechanical transmission + hydraulic drive", which improves the tunnel segment conveying speed. The hinged design of the guide side frame can automatically adjust the angle of the sliding pad according to the curvature of the tunnel inner wall, and the sliding pad always abuts against the tunnel inner wall. There is no need for frequent manual adjustment of the equipment posture, which significantly reduces the difficulty of operation and labor intensity. It is especially suitable for tunnel construction scenarios with different cross-sectional shapes, and improves the versatility of the equipment. Attached Figure Description

[0015] The accompanying drawings, which are provided to further illustrate this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application.

[0016] In the attached diagram:

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0019] Figure 3 This utility model Figure 1 Enlarged structural diagram at point B;

[0020] Figure 4 This is a partially enlarged structural diagram of the first side frame of this utility model;

[0021] Figure 5 This is a partially enlarged structural diagram of the second side frame of this utility model.

[0022] In the diagram: 1. Fixed base plate; 2. Mounting slide rail; 3. Gasket 1; 4. Side frame; 5. Gasket 2; 6. Fixed slide; 7. Hydraulic push rod; 8. Push frame; 9. Limiting block; 10. First side frame; 11. Transmission wheel 1; 12. Transmission belt 1; 13. Second side frame; 14. Transmission wheel 2; 15. Transmission belt 2; 16. Guide side frame; 17. Sliding pad. Detailed Implementation

[0023] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Some segment feeders have inadequate structural design, resulting in low positioning accuracy during segment transport and a tendency for deviations. Some feeders also have low levels of automation, requiring significant manual operation and adjustments, increasing labor intensity and construction costs. Furthermore, traditional segment feeders are poorly adaptable to different tunnel construction environments and struggle to meet diverse construction needs. This embodiment provides a segment feeder for tunnel boring machines (TBMs). Please refer to [reference needed]. Figures 1-5An embodiment provides a feeding machine for a tunnel boring machine, including a fixed base plate 1, a mounting rail 2 fixedly mounted on the top of the fixed base plate 1, a shim 3 fixedly mounted on the top of the mounting rail 2, side frames 4 fixedly mounted on the front and rear ends of the fixed base plate 1, a shim 5 fixedly mounted on the top of the side frames 4, a fixed slide 6 fixedly mounted on the top of the middle section of the fixed base plate 1, a hydraulic push rod 7 fixedly mounted on the left end of the fixed slide 6, a pusher 8 fixedly connected to the output end of the hydraulic push rod 7, a limit block 9 fixedly connected to the inner wall of the right end of the fixed base plate 1, a first side frame 10 fixedly mounted on the outer wall of the front and rear ends of the right end of the fixed base plate 1, a drive wheel 11 drivenly connected to the inner wall of the first side frame 10, a drive belt 12 drivenly connected to the outer wall of the drive wheel 11, and a fixed mounting plate 5 on the outer wall of the front and rear ends of the left end of the fixed base plate 1. The system is equipped with a second side frame 13, with a transmission wheel 14 connected to the inner wall of the second side frame 13 and a transmission belt 15 connected to the outer wall of the transmission wheel 14. A guide side frame 16 is hinged to the inner wall of the outer side of the second side frame 13, and a sliding pad 17 is fixedly connected to the bottom of the top outer wall of the guide side frame 16. Mounting rails 2 are symmetrically arranged at the front and rear sections of the top of the fixed base plate 1. Gaskets 5 are symmetrically arranged at the top of the front and rear side frames 4. A hydraulic push rod 7 is slidably connected to the inner wall of the fixed base plate 1 and the mounting rail 2. A push frame 8 is slidably connected to the top of the fixed base plate 1. An oblique guide block is fixedly connected to the left end of the first side frame 10 for obliquely guiding the tunnel segments from right to left. The guide side frame 16 is symmetrically arranged at the front and rear ends of the fixed base plate 1, and the sliding pad 17 abuts against the inner wall of the tunnel opened by the shield machine.

[0025] Working Principle: Through precise structural design and coordinated operation, the various components of the tunnel boring machine's segment feeder achieve efficient transportation and accurate installation of tunnel segments. The following is a detailed description of the working process and interaction of each component: The fixed base plate 1 serves as the basic support structure for the entire segment feeder, providing a stable installation platform for other components; the mounting rails 2 are symmetrically arranged at the front and rear sections of the top of the fixed base plate 1, and the pads 3 installed on its top can provide a certain buffering and support for the components installed on the rails, reducing wear during the sliding process; the side frames 4 at the front and rear ends of the fixed base plate 1 not only enhance the stability of the overall structure, but the symmetrically arranged pads 5 on its top also provide a flat and stable installation foundation for other equipment or structures that may be connected above.

[0026] The fixed slide 6, located at the top of the middle section of the fixed base plate 1, has a hydraulic push rod 7 installed at its left end, which is slidably connected to the inner wall of the fixed base plate 1 and the mounting slide rail 2. It can stably extend and retract under the guidance of the slide rail. The output end of the hydraulic push rod 7 is fixedly connected to the push frame 8. When the hydraulic push rod 7 extends, it pushes the push frame 8 to slide on the top of the fixed base plate 1, thereby conveying the tube segments placed on the push frame 8 forward. When the hydraulic push rod 7 retracts, the push frame 8 returns to its original position, ready for the next tube segment push.

[0027] The limiting block 9 on the inner wall of the right end of the fixed base plate 1 plays an important positioning role. When the pusher 8 pushes the tube to the designated position, the tube contacts the limiting block 9 to ensure the accurate position of the tube during the transportation process and avoid excessive movement.

[0028] The first side frame 10, which is fixed to the outer wall of the front and rear ends of the right end of the base plate 1, has a transmission wheel 11 on its inner wall that is connected to the transmission belt 12. The transmission system, driven by the power unit, drives the transmission belt 12 to rotate, thereby transmitting power to the relevant components. It may be used for the initial conveying or positioning adjustment of the tube sheet before it enters the feeding machine. The oblique guide block at the left end of the first side frame 10 can obliquely guide the tube sheet conveyed from right to left, so that the tube sheet can accurately enter the conveying track of the feeding machine and reduce the deviation and jamming during the tube sheet conveying process.

[0029] The second side frame 13 on the outer wall of the left end of the fixed base plate 1 has a transmission wheel 14 on its inner wall that is driven by a transmission belt 15. It works in conjunction with the transmission system of the first side frame 10 to complete the process of conveying the segments in the segment feeder. The guide side frame 16, which is hinged to the inner wall of the outer side of the second side frame 13, is symmetrically arranged at the front and rear ends of the fixed base plate 1. The sliding pad 17 at the bottom of the top outer wall of the guide side frame 16 always abuts against the inner wall of the tunnel opened by the shield machine. During the operation of the segment feeder, the guide side frame 16 can adaptively adjust according to the shape and direction of the inner wall of the tunnel. Through the contact between the sliding pad 17 and the inner wall of the tunnel, it provides stable guidance and support for the segment feeder, ensuring that the segment feeder can operate stably in the complex tunnel environment, while ensuring the accuracy of the segment conveying direction.

[0030] Through the coordinated operation of the hydraulic system, transmission system, and guidance system, the various components realize the entire process of segment transportation, guidance, pushing and accurate positioning, which greatly improves the efficiency and quality of tunnel boring machine segment support and meets the high requirements of modern tunnel construction.

[0031] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cutting feeder for a tunnel boring machine, comprising a fixed base plate (1), characterized in that: A mounting slide rail (2) is fixedly installed on the top of the fixed base plate (1). A shim (3) is fixedly installed on the top of the mounting slide rail (2). Side frames (4) are fixedly installed on the front and rear ends of the fixed base plate (1). A shim (5) is fixedly installed on the top of the side frames (4). A fixed slide (6) is fixedly installed on the top of the middle section of the fixed base plate (1). A hydraulic push rod (7) is fixedly installed on the left end of the fixed slide (6). A push frame (8) is fixedly connected to the output end of the hydraulic push rod (7). A limit block (9) is fixedly connected to the inner wall of the right end of the fixed base plate (1). A limit block (9) is fixedly connected to the outer wall of the front and rear ends of the right end of the fixed base plate (1). A first side frame (10) is fixedly installed on the wall. A transmission wheel (11) is connected to the inner wall of the first side frame (10). A transmission belt (12) is connected to the outer wall of the transmission wheel (11). A second side frame (13) is fixedly installed on the outer wall of the left end of the fixed base plate (1). A transmission wheel (14) is connected to the inner wall of the second side frame (13). A transmission belt (15) is connected to the outer wall of the transmission wheel (14). A guide side frame (16) is hinged to the inner wall of the outer side of the second side frame (13). A sliding pad (17) is fixedly connected to the bottom of the top outer wall of the guide side frame (16).

2. The shield tunneling machine feeder according to claim 1, characterized in that: The mounting slide rails (2) are symmetrically arranged on the front and rear sections of the top of the fixed base plate (1).

3. A cutting feeder for a tunnel boring machine according to claim 1, characterized in that: The second gasket (5) is symmetrically arranged on the top of the side frame (4) at the front and rear ends.

4. A cutting feeder for a tunnel boring machine according to claim 1, characterized in that: The hydraulic push rod (7) is slidably connected to the inner wall of the fixed base plate (1) and the mounting slide rail (2).

5. A cutting feeder for a tunnel boring machine according to claim 1, characterized in that: The pusher (8) is slidably connected to the top of the fixed base plate (1).

6. A cutting feeder for a tunnel boring machine according to claim 1, characterized in that: The left end of the first side frame (10) is fixedly connected with an oblique guide block for guiding the segments obliquely from right to left.

7. A feeder for a tunnel boring machine according to claim 1, characterized in that: The guide side frame (16) is symmetrically arranged at the front and rear ends of the fixed base plate (1), and the sliding pad (17) abuts against the inner wall of the tunnel opened by the shield machine.

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