Multifunctional shield tunneling machine equipment bridge

Abstract

The utility model discloses a multifunctional shield tunneling machine equipment bridge which comprises a front frame beam, a middle frame beam, a rear frame beam, a first supporting frame, a second supporting frame, a screw machine hanging beam, a screw machine straining beam and a front beam, and the front frame beam, the middle frame beam and the rear frame beam are sequentially connected through flanges. The screw machine hanging beam, the screw machine straining beam and the front cross beam are arranged in the middle of the front frame beam, the two ends of the screw machine hanging beam and the two ends of the front cross beam are connected with two side plates of the front frame beam respectively, and the screw machine straining beam is arranged between the two first supporting frames on the front portion. The upper ends of the first supporting frames and the upper ends of the second supporting frames are connected through flanges, the multiple first supporting frames and the multiple second supporting frames are combined and combined on the two sides of the bottom of an assembly of the front frame beam, the middle frame beam and the rear frame beam, and supporting frame bottom plates are arranged at the bottom ends of the first supporting frames and the bottom ends of the second supporting frames. According to the utility model, the problem that the front and back distances of the equipment bridge are not matched is solved, and the adaptability of the product under different installation conditions is improved.

Description

Technical Field

[0001] This utility model relates to an equipment bridge structure that can carry multi-mode screw conveyors and belt conveyors on a tunnel boring machine, belonging to the field of tunnel boring machine technology. Background Technology

[0002] Currently, my country's urban rail transit construction has entered a stage of rapid development, and the shield tunneling method is playing an increasingly important role in urban subway tunnel construction, leading to a significant increase in the demand for shield tunneling machines. As an indispensable structure in the machine's operation, the shield tunneling machine's equipment bridge serves multiple functions, including mounting and connecting screw conveyors, supporting belt conveyors and segment hoist tracks, and also meeting the requirements for the installation of hydraulic and cable lines. Therefore, the structure of the equipment bridge needs to be designed separately after other components are determined. However, due to construction schedules and other reasons, this often significantly extends the design time, causing unnecessary problems. To reduce equipment design costs, this patent designs a multi-functional equipment bridge that can mount single and double screw conveyors and belt conveyors.

[0003] To improve work efficiency and increase the stability of the construction process during tunnel construction, contractors sometimes require tunnel boring machines (TBMs) to be equipped with double-helix conveyors. These conveyors are longer, and some even have telescopic functions. This makes the original equipment bridges designed for single-helix conveyors unsuitable in terms of length and connectability, necessitating the redesign of a new equipment bridge steel structure. In terms of design, double-helix and single-helix conveyors are generally required to be compatible with the same TBM main unit, so the equipment bridge must also be compatible with both to minimize manufacturing and subsequent operating costs. Currently, existing equipment bridges have relatively limited functions and structures. Single-helix equipment bridges, due to their single-plate support in the middle, suffer from insufficient overall strength when lengthened, while longer double-helix equipment bridges lack interchangeability. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a multifunctional shield tunneling machine equipment bridge structure to address the shortcomings of the existing technology.

[0005] To solve this technical problem, this utility model provides a multifunctional shield tunneling machine equipment bridge, including a front beam, a middle beam, a rear beam, a first support frame, a second support frame, a screw conveyor lifting beam, a screw conveyor tie beam, and a front crossbeam. The front beam, middle beam, and rear beam are connected sequentially by flanges. The screw conveyor lifting beam, screw conveyor tie beam, and front crossbeam are located in the middle of the front beam. The two ends of the screw conveyor lifting beam and the front crossbeam are respectively connected to the two side plates of the front beam. The screw conveyor tie beam is located between the two first support frames at the front. The upper ends of the first support frame and the second support frame are connected by flanges. Multiple first support frames and second support frames are assembled and assembled on both sides of the bottom of the front beam, middle beam, and rear beam assembly. The bottom ends of the first support frame and the second support frame are provided with support frame bottom plates.

[0006] The equipment bridge also includes a front walkway, a middle walkway, a rear walkway, equipment bridge protective railings, and walkway flaps. The front walkway, middle walkway, rear walkway, equipment bridge protective railings, and walkway flaps are welded to the support frame base plate. During tunneling, the walkways on both sides can connect the rear trailer and the front main unit.

[0007] The front walkway, middle walkway, and rear walkway are equipped with guardrails on both sides.

[0008] The front beam is equipped with lugs for hoisting the conveyor head assembly, and the support beam is welded to the middle crossbeam.

[0009] The front beam is equipped with a screw conveyor. The screw conveyor lifting beam and screw conveyor tie beam are bolted to the front space of the equipment bridge. While hoisting the screw conveyor, they can also serve as intermediate beam supports. At the same time, locking screw buckles and lifting buckles are added, and the screw conveyor tie beam tightens the intermediate lifting lug of the screw conveyor.

[0010] The front beam, the middle beam, and the rear beam are not parallel to each other.

[0011] Beneficial effects: This utility model can solve the problem of mismatch between the front and rear spacing of the equipment bridge. Under normal circumstances, the spacing between the main beam of the assembly machine and the trailer is different, thus improving the adaptability of the product under different installation conditions. Attached Figure Description

[0012] Figure 1 This is a schematic axonometric view of the structure of this utility model;

[0013] Figure 2 This is a schematic front view of the structure of this utility model;

[0014] Figure 3 This utility model Figure 2 MM cross-sectional schematic diagram;

[0015] Figure 4 This utility model Figure 2 A schematic diagram of the NN cross-section;

[0016] Figure 5 This utility model Figure 2 BB cross-sectional diagram;

[0017] Figure 6 This is a schematic front view of the front beam structure of this utility model;

[0018] Figure 7 This is a schematic top view of the front beam structure of this utility model;

[0019] Figure 8 This is a schematic top view of the middle beam structure of this utility model;

[0020] Figure 9 This is a schematic top view of the rear beam structure of this utility model;

[0021] Figure 10 This utility model Figure 9 A schematic diagram of the AA cross-section;

[0022] Figure 11 This is a schematic front view of the screw conveyor beam of this utility model;

[0023] Figure 12 This is a schematic side view of the structure of the screw conveyor beam of this utility model;

[0024] Figure 13 This is a structural schematic diagram of the support frame of this utility model;

[0025] Figure 14 This is a schematic diagram of the structure of the support frame II of this utility model;

[0026] Figure 15 This is a schematic diagram showing the position of the screw conveyor of this utility model before it extends or retracts within the equipment bridge;

[0027] Figure 16 This is a schematic diagram showing the position of the screw conveyor of this utility model after extension and retraction within the equipment bridge;

[0028] Figure 17 This is a schematic axonometric view of the structure of this utility model in its single-helix state.

[0029] In the diagram: 1. Front beam; 2. Middle beam; 3. Rear beam; 4. Support frame one; 5. Support frame two; 6. Front walkway; 7. Middle walkway; 8. Rear walkway; 9. Screw conveyor lifting beam; 10. Screw conveyor tie beam; 11. Front crossbeam; 12. Hex bolt; 13. Hex nut; 14. Washer; 15. Equipment bridge guardrail; 16. Walkway flap. Detailed Implementation

[0030] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] like Figures 1-17 As shown, this utility model provides a multifunctional shield tunneling machine equipment bridge, including a front beam 1, a middle beam 2, a rear beam 3, a first support frame 4, a second support frame 5, a screw conveyor lifting beam 9, a screw conveyor tie beam 10, and a front crossbeam 11. The front beam 1, the middle beam 2, and the rear beam 3 are connected sequentially via flanges using hexagonal bolts 12, hexagonal nuts 13, and washers 14. The screw conveyor lifting beam 9, the screw conveyor tie beam 10, and the front crossbeam 11 are located in the middle of the front beam 1. The two ends of the screw conveyor lifting beam 9 and the front crossbeam 11 are respectively connected to the two side plates of the front beam 1. The screw conveyor tie beam 10 is... It is placed between the two front support frames 4; the upper ends of the support frames 4 and 5 are connected by flanges, and multiple support frames 4 and 5 are bolted together to the bottom sides of the front beam 1, the middle beam 2 and the rear beam 3 assembly. The bottom ends of the support frames 4 and 5 are provided with support frame base plates; after all the components of the equipment bridge are processed and welded according to the drawings, the front, middle and rear parts of the equipment bridge are assembled separately; the connection holes of each section are designed as slot holes. In the single-helix state, only the middle beam 2 needs to be removed from the equipment bridge, and the rest of the structure can still be assembled.

[0032] The equipment bridge also includes a front walkway 6, a middle walkway 7, a rear walkway 8, a protective railing 15, and a walkway flap 16. The front walkway 6, the middle walkway 7, the rear walkway 8, the protective railing 15, and the walkway flap 16 are welded to the base plate of the support frame. During tunneling operations, the walkways on both sides can connect the rear trailer and the front main unit, facilitating the movement of construction personnel. The railings on both sides also serve a protective function.

[0033] The front walkway 6, the middle walkway 7, and the rear walkway 8 are equipped with guardrails on both sides.

[0034] The front beam 1 is equipped with pull lugs for hoisting the conveyor head assembly, and the support beam is welded to the middle crossbeam.

[0035] The screw conveyor is assembled to the front beam 1. The screw conveyor lifting beam 9 and screw conveyor tie beam 10 are installed by bolts, and locking screw buckles and lifting buckles are added. At this time, the tie beams 10 on both sides of the equipment bridge should also be tightened to the middle lifting lug of the screw conveyor to increase its stability.

[0036] The front beam 1, the middle beam 2, and the rear beam 3 are not parallel to each other.

[0037] The installation and use of this utility model are as follows:

[0038] Because the width between the trailer's top support pad and the main beam of the assembly machine is different, the positioning of the upper beam must be based on the supports and walkways at both ends of the equipment bridge to ensure that the front and rear overlaps of the equipment bridge match. Therefore, the beams on both sides must be at the same angle during the design and are not parallel to each other. First, the front beam 1, the middle beam 2, and the rear beam 3 are welded and fabricated. Then, support frame 1 4 and support frame 2 5 are bolted together and installed. Then, the front walkway 6, the middle walkway 7, and the rear walkway 8 are welded to the bottom plate of the support frame. This completes the initial assembly of the front, middle, and rear parts of the equipment bridge.

[0039] Next, the platform connection and the upper connecting flange are assembled with bolts to complete the installation of the main structure of the equipment bridge. At this time, the detachable lifting beam 9 in the middle and the other movable supports are not installed. During installation and use, after the screw conveyor is assembled in place, the middle lifting beam 9 and the supports are also reinstalled with bolts. At the same time, locking screws and lifting buckles are added. At this time, the tie beams 10 on both sides of the equipment bridge are also tightened to the middle lifting lugs of the screw conveyor to increase its stability. The lugs inside the front end of the equipment bridge are used to lift the head assembly of the belt conveyor. At the same time, the support beams are welded to the middle crossbeam to support and stabilize the belt conveyor. Then, the rectangular steel pipes on both sides of the screw conveyor lifting beam are positioned and welded to the middle part. The remaining front crossbeams and the main connecting parts required in the middle part are also positioned and welded to the space inside the main beam to increase the stability of the main structure, ensure the overall strength of the equipment bridge, and avoid deformation during subsequent use. The connection between the screw conveyor and the equipment bridge is achieved by the combination of locking screws and shackles between the lifting beams. At the same time, the tie beams on both sides hold the middle lifting lugs of the screw conveyor to increase its stability.

[0040] The belt conveyor is fixed to the corresponding intermediate rectangular steel pipe of the equipment bridge by welding the supporting parts inside its components. At the same time, the front of the belt conveyor is also fixed to the belt conveyor lifting lug welded on the inside of the main beam of the equipment bridge by a hand hoist.

[0041] The crane beam is welded to the support frame beam near the main beam, extending from back to front to the corresponding position; the remaining pipelines are fixed by mechanical pre-welded parts welded to the support columns, including but not limited to C-shaped steel and other steel sections. Flexible hoses are used to connect the pipelines at the section points to facilitate disassembly and restoration during disassembly and assembly, reducing workload.

[0042] To accommodate a single-spiral screw conveyor, the middle section of the equipment bridge needs to be removed, with only the front and rear sections bolted together. However, to fit the rear trailer, the original main beams on both sides of the equipment bridge have a certain angle. Therefore, the holes in the front and rear connecting plates are designed as slots, accurately positioning the main beams and ensuring the dimensions of the overlapping sections remain unchanged. This way, only the old trailer needs to be reused for both the front and rear sections, eliminating the need to replace the rear or front sections. This solution is also easy to assemble and disassemble and can be modified in various environments. The detachable screw conveyor lifting beam and crossbeam in the middle section can be selectively installed, no longer supporting the screw conveyor, but only serving to support the main beams, increasing the overall stability of the equipment bridge. The belt conveyor is then fixed to the corresponding position on the equipment bridge with new supports.

[0043] The lifting beams on both sides of the screw conveyor are welded and fixed to the lifting beam of the equipment bridge, and they themselves move through the slide rails; the connecting holes of the segmented parts are designed as slotted holes, so that they can be directly bolted together when only two sections are connected.

[0044] When the screw conveyor extends or retracts along its own track, it is ensured that it is controlled within the reserved space inside the equipment bridge.

[0045] The screw conveyor inside the equipment bridge during tunnel boring machine operation can meet the expansion and contraction requirements. At the same time, the equipment bridge can be disassembled and reassembled to achieve universal performance in multiple modes during subsequent use.

[0046] The above-described embodiments of this utility model are merely illustrative examples and are not the only ones. All modifications within the scope of this utility model or equivalent to this utility model are encompassed by this utility model.

Claims

1. A multi-functional shield machine equipment bridge, characterized by: It comprises a front frame beam (1), a middle frame beam (2), a rear frame beam (3), a support frame one (4), a support frame two (5), a screw machine lifting beam (9), a screw machine pulling beam (10) and a front cross beam (11), the front frame beam (1), the middle frame beam (2) and the rear frame beam (3) are sequentially connected through flanges, the screw machine lifting beam (9), the screw machine pulling beam (10) and the front cross beam (11) are arranged in the middle of the front frame beam (1), the two ends of the screw machine lifting beam (9) and the front cross beam (11) are connected with the two side plates of the front frame beam (1) respectively, and the screw machine pulling beam (10) is arranged between the two support frame ones (4); the upper ends of the support frame one (4) and the support frame two (5) are connected through flanges, a plurality of support frame ones (4) and support frame twos (5) are combined and clamped on the bottom of the front frame beam (1), the middle frame beam (2) and the rear frame beam (3) assembly, and the bottom ends of the support frame one (4) and the support frame two (5) are provided with support frame bottom plates.

2. The multi-functional shield machine equipment bridge according to claim 1, characterized in that: It also comprises a front walkway (6), a middle walkway (7), a rear walkway (8), a device bridge protective guardrail (15) and a walkway flap (16), the front walkway (6), the middle walkway (7), the rear walkway (8), the device bridge protective guardrail (15) and the walkway flap (16) are welded on the support frame bottom plate; when tunneling, the two side walkways can be connected with the rear trailer and the front main machine.

3. The multi-functional shield machine equipment bridge of claim 2, wherein: The two sides of the front walkway (6), the middle walkway (7) and the rear walkway (8) are provided with guardrails.

4. The multi-functional shield machine equipment bridge of claim 1, wherein: The front frame beam (1) is internally provided with a pulling ear for hoisting a belt machine head assembly, and the support beam is welded on the middle cross beam.

5. The multi-functional shield machine equipment bridge of claim 1, wherein: The front frame beam (1) is provided with a screw conveyor, the screw machine lifting beam (9) and the screw machine pulling beam (10) are bolted in the front end space of the device bridge, can play the role of middle beam support when hoisting the screw machine, and are additionally provided with a lock screw buckle and a lifting buckle, and the screw machine pulling beam (10) pulls the middle lifting lug of the screw machine.

6. The multi-functional shield machine equipment bridge according to any one of claims 1-5, characterized in that: The two side frame beams of the front frame beam (1), the middle frame beam (2) and the rear frame beam (3) are not parallel to each other.

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