Lifting supporting device for in-hole disassembly of matched trolley after super-large-diameter shield

Abstract

The utility model relates to a lifting and supporting device for disassembling a matched trolley behind a super-large-diameter shield in a hole. The lifting and supporting device comprises a base, a supporting frame, a main supporting column, a supporting oil cylinder, a supporting plate and other main components. The base is of a rectangular structure, the supporting frame is divided into a lower frame and an upper frame which are arranged on the periphery of the base and extend upwards in a conical shape, the lower frame is formed by connecting angle steel and steel plates, and the upper frame comprises an upper frame base and rib plates. The main supporting column is arranged in the middle of the base, extends upwards and is of a hollow structure, an oil cylinder hoop is arranged at the bottom, a connecting flange is arranged at the top, and an oil cylinder groove is formed in the side face to avoid an oil pipe. The supporting oil cylinder is arranged in the main supporting column, and a damping rubber ring is arranged at the top of a piston rod and connected with the supporting plate through a connecting foot and a fixing pin. During use, the supporting plate is mounted firstly, then the supporting oil cylinder is operated to rise, the supporting plate is attached to the bottom of the upper block of the trolley and is welded and fixed, and stable supporting is provided. When the trolley is moved, the device serves as an anti-toppling support, and stability is ensured. And after a preset disassembling position is reached, the supporting oil cylinder can be adjusted to reduce the height of the supporting plate, and the height reducing requirement is met. According to the utility model, the efficiency of disassembling the trolley of the shield tunneling machine in the tunnel is improved, and the integrity and safety of disassembling are ensured.

Description

Technical Field

[0001] This utility model relates to the field of tunnel boring machine devices, and in particular to a lifting support device for dismantling an ultra-large diameter tunnel boring machine's rear-mounted trolley inside the tunnel. Background Technology

[0002] Tunnel boring machines (TBMs), as a modern type of underground construction machinery, are widely used in urban subway and tunnel construction. The rear-mounted trolley, a crucial component of the TBM, houses its power system, hydraulic system, and excavation and handling system, ensuring the TBM's normal operation.

[0003] After a super-large diameter tunnel boring machine (TBM) completes its construction task, it needs to be disassembled inside the tunnel for removal. Due to the limited space within the tunnel, especially the narrow space between the top of the TBM and the tunnel lining segments, disassembly of the TBM becomes extremely difficult. Current technology often requires disassembling or destructively cutting apart components on the top of the TBM, while disassembling the upper structure of the TBM requires flame cutting into small pieces, followed by dismantling using hoists and gantry frames. This disassembly method not only involves numerous pieces and low efficiency, but also results in the inability to reuse the upper structure and some components after destructive dismantling, leading to significant economic losses.

[0004] Therefore, the existing technology has the following problems: First, the space between the top of the trolley and the segment is too small to meet the hoisting height requirements for disassembling the components and upper structure of the trolley; second, the trolley is divided into many sections during disassembly, resulting in low disassembly efficiency; and third, the upper structure and some components of the trolley cannot be reused after destructive disassembly, resulting in significant losses after disassembly.

[0005] In summary, developing a lifting support device for disassembling the trolley of an ultra-large diameter shield tunneling machine inside the tunnel, so as to achieve rapid and non-destructive disassembly of the upper sections and other components of the trolley, is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0006] To address the problems existing in the background technology, this utility model develops a lifting support device for dismantling an ultra-large diameter shield tunneling machine's rear-mounted trolley inside the tunnel. The device includes a base, which is rectangular in structure. A support frame is tapered upwards around the base, consisting of a lower frame and an upper frame. The lower frame is composed of four tapered angle steels, with the bottom and top of each pair of angle steels connected by steel plates. The upper frame includes an upper frame base, located at the top of the lower frame. The upper frame base is surrounded by four tapered ribs. A main support column is positioned upwards in the center of the base. The main support column has a hollow interior and houses a support cylinder. A support plate is positioned above the support cylinder.

[0007] In use, four dismantling lifting support devices are installed at the lower part of the upper section of the ultra-large diameter tunnel boring machine trolley that needs to be dismantled. The upper structure of the trolley is lifted and stressed by the four devices. The connecting bolts between the upper and lower structures are removed, so that the upper and lower structures of the trolley are separated. Then, a hydraulic flatbed truck is used to support the upper structure of the trolley. The four devices serve as anti-tipping supports. The upper structure of the trolley is moved to the predetermined dismantling position by the hydraulic flatbed truck.

[0008] Furthermore, a hydraulic cylinder clamp is provided at the bottom of the main support column, the bottom of the support hydraulic cylinder is located inside the hydraulic cylinder clamp, a connecting flange is provided at the top of the main support column, and the cylinder cover of the support hydraulic cylinder is connected to the connecting flange by bolts.

[0009] Furthermore, a cylinder groove is provided on one side of the main support column from top to bottom, and the cylinder groove is used to avoid the oil pipe of the support cylinder.

[0010] Preferably, the connecting flange is an annular shape with an opening on one side and four threaded holes evenly distributed around its circumference.

[0011] Preferably, a gasket is provided at the connecting flange.

[0012] Preferably, the hydraulic cylinder clamp is provided with a bottom anti-collision ring.

[0013] Furthermore, the upper part of the support plate is a flat steel plate, and the lower part of the support plate is vertically provided with four connecting feet, which are connected to the top of the piston rod of the support cylinder by fixing pins.

[0014] Preferably, a shock-absorbing rubber ring is provided at the top of the piston rod of the supporting cylinder.

[0015] Preferably, the angle steel has a thickness of 14-18mm and is made of Q235 steel.

[0016] Preferably, the steel plate has a thickness of 18-22mm and is made of Q355B steel.

[0017] Preferably, the support plate has a thickness of 60-70mm and is made of Q355B steel.

[0018] The advantages and beneficial effects of this utility model are as follows: This utility model can effectively improve the dismantling efficiency and integrity of the upper sections of the tunnel boring machine trolley. Compared with the existing technology, which requires disassembling or destructively cutting off the components on the top of the trolley, and dismantling the upper structure of the trolley by flame cutting into small sections, the lifting support device of this utility model can meet the lifting requirements before the trolley is moved to the predetermined dismantling position, ensuring that the components on the top of the trolley and the upper structure of the trolley remain intact during the dismantling process. By using this device, all components on the top of the trolley can be dismantled intact, reducing the construction work requiring hot work, greatly improving the efficiency of dismantling the tunnel boring machine trolley inside the tunnel, shortening the dismantling period, and facilitating the overall dismantling progress on site. Attached Figure Description

[0019] Figure 1 This is a cross-sectional view of the present invention.

[0020] Figure 2 This is a top view of the support plate of this utility model.

[0021] Figure 3 This is a schematic diagram of the connecting flange for this utility model.

[0022] Among them, 1-base, 2-support frame, 21-lower frame, 211-angle steel, 212-steel plate, 22-upper frame, 221-upper frame base, 222-stiffening plate, 3-main support column, 31-cylinder clamp, 32-connecting flange, 33-washer, 34-bottom anti-collision ring, 35-cylinder groove, 4-support cylinder, 41-shock-absorbing rubber ring, 5-support plate, 51-connecting foot. Detailed Implementation

[0023] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0024] like Figure 1 , Figure 2 and Figure 3 As shown, a lifting support device for dismantling an ultra-large diameter shield tunneling machine using a rear-mounted trolley inside the tunnel is provided. The device mainly includes a base 1, a support frame 2, a main support column 3, a support cylinder 4, and a support plate 5.

[0025] In this embodiment, the base 1 is a rectangular structure, serving as the basic support for the entire device.

[0026] The support frame 2 is divided into a lower frame 21 and an upper frame 22, both of which are arranged around the base 1 and extend upwards in a tapered shape. The lower frame 21 is composed of four tapered angle steels 211, with the bottom and top of every two angle steels 211 connected by steel plates 212 to form a stable lower support structure. The angle steels 211 are made of 16mm thick Q235 steel, and the steel plates 212 are made of 20mm thick Q355B steel.

[0027] The upper frame 22 includes an upper frame base 221, which is located at the top of the lower frame 21. The upper frame base 221 is composed of four tapered ribs 222 around its perimeter, which further enhances the stability of the supporting frame 2.

[0028] The main support column 3 is located in the middle of the base 1 and extends upwards, with a hollow internal structure. The cylinder clamp 31 is located at the bottom of the main support column 3 to fix and support the cylinder 4. The connecting flange 32 is located at the top of the main support column 3, and is an annular shape with an opening on one side, with four threaded holes evenly distributed around its circumference for connection to the cylinder head of the cylinder 4. The cylinder groove 35 is located on one side of the main support column 3 to avoid the oil pipe supporting the cylinder 4.

[0029] The support cylinder 4 is located inside the main support column 3 and is used to provide lifting support force. The diameter of the support cylinder 4 is 295mm. The piston rod of the support cylinder 4 has a connecting structure at the top for connecting with the support plate 5. The shock-absorbing rubber ring 41 is located at the top of the piston rod of the support cylinder 4 and plays a role in shock absorption.

[0030] The support plate 5 is located on the upper part of the support cylinder 4 and is used to attach to and support the bottom of the upper section of the ultra-large diameter tunnel boring machine trolley. Four connecting feet 51 are vertically installed at the lower part of the support plate 5, which are connected to the top of the piston rod of the support cylinder 4 via fixing pins. The support plate 5 is 65mm thick and made of Q355B steel.

[0031] The overall device has a height of 3140mm when the support cylinder 4 is retracted, the piston rod of the support cylinder 4 has a length of 2150mm, and the base 1 is a rectangle with a width of 1760mm.

[0032] How to use:

[0033] Prepare four lifting support devices for dismantling the ultra-large diameter shield tunneling machine's rear-mounted trolley inside the tunnel, as per this invention. Install suitable support plates 5 on the support cylinder 4 of each device, ensuring a secure and reliable connection between the support plates 5 and the piston rod. Operate the support cylinder 4 to raise it, causing the support plates 5 to adhere to the bottom of the upper section of the ultra-large diameter shield tunneling machine trolley. Then, weld and fix it in place, ensuring a secure and reliable connection between the support plates 5 and the upper section of the trolley.

[0034] When it is necessary to move the upper part of the trolley to the predetermined dismantling position, a hydraulic flatbed truck is used for support and movement. The device of this invention acts as an anti-tipping support to ensure the stability of the trolley during movement. After the trolley reaches the predetermined dismantling position, the support cylinder 4 is operated to lower the height of the support plate 5, thereby meeting the height reduction requirement of the trolley after reaching the predetermined dismantling position, facilitating subsequent dismantling work.

[0035] The above provides a detailed description of the lifting support device for dismantling an ultra-large diameter shield tunneling machine's rear-mounted trolley inside the tunnel, as provided by this utility model. Specific examples have been used to illustrate the principles and implementation methods of this invention. It should be noted that those skilled in the art can make various improvements and modifications to this invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A large-diameter shield rear matching trolley hole-in disassembly lifting support device, comprising a base (1), the base (1) is a rectangular structure, a support frame (2) is arranged on the periphery of the base (1) and tapered upward, characterized in that, The support frame (2) is divided into a lower frame (21) and an upper frame (22), the lower frame (21) is composed of four angle steels (211) arranged in a tapered manner, and each two angle steels (211) are connected by a steel plate (212) at the bottom and the top, respectively, the upper frame (22) comprises an upper frame base (221), the upper frame base (221) is arranged at the top end of the lower frame (21), and the upper frame base (221) is composed of four rib plates (222) arranged in a tapered manner around the upper frame base (221), a main support column (3) is arranged in the middle of the base (1) upward, the main support column (3) is hollow inside and is provided with a support oil cylinder (4), and a supporting plate (5) is arranged at the upper portion of the support oil cylinder (4).

2. The lifting and supporting device for disassembling the super-large diameter shield rear matching trolley in the hole according to claim 1, characterized in that, The bottom of the main support column (3) is provided with an oil cylinder clamp (31), the bottom of the support oil cylinder (4) is arranged in the oil cylinder clamp (31), and the top of the main support column (3) is provided with a connecting flange (32), and the cylinder cover of the support oil cylinder (4) is connected with the connecting flange (32) through bolts.

3. The lifting and supporting device for disassembling the super-large diameter shield rear matching trolley in the hole according to claim 2, characterized in that, An oil cylinder groove (35) is formed in the main support column (3) from top to bottom on one side.

4. The lifting and supporting device for disassembling the super-large diameter shield rear matching trolley in the hole according to claim 3, characterized in that, The supporting plate (5) is a flat steel plate at the upper end, four connecting feet (51) are vertically arranged at the lower portion of the supporting plate (5), and the connecting feet (51) are connected with the top of the piston rod of the support oil cylinder (4) through fixing pins.

5. The lifting and supporting device for disassembling the super-large diameter shield rear matching trolley in the hole according to claim 4, characterized in that, The connecting flange (32) is a circular ring with an opening on one side, and four threaded holes are uniformly distributed on the circumference.

6. The lifting and supporting device for disassembling the super-large diameter shield rear matching trolley in the hole according to claim 5, characterized in that, A gasket (33) is arranged at the connecting flange (32).

7. The lifting and supporting device for disassembling the super-large diameter shield rear matching trolley in the hole according to claim 4, characterized in that, A bottom anti-collision ring (34) is arranged at the oil cylinder clamp (31), and a damping rubber ring (41) is arranged at the top of the piston rod of the support oil cylinder (4).

8. The lifting and supporting device for disassembling in-hole of a large-diameter shield rear matching trolley according to any one of claims 1 to 7, characterized in that, The thickness of the angle steel (211) is 14-18mm, and Q235 steel is adopted.

9. The lifting and supporting device for disassembling a large-diameter shield tail assembly in a tunnel according to any one of claims 1 to 7, characterized in that, The thickness of the steel plate (212) is 18-22mm, and Q355B steel is adopted.

10. The lifting and supporting device for disassembling a large-diameter shield tail assembly in a tunnel according to any one of claims 1 to 7, characterized in that, The thickness of the supporting plate (5) is 60-70mm, and Q355B steel is adopted.

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