Cutter mounting structure of shield tunneling machine

Abstract

The utility model discloses a shield tunneling machine cutter mounting structure which comprises a propelling device, a lifting mechanism, a first hydraulic cylinder, a second hydraulic cylinder, a movable seat, a winch, two transverse moving mechanisms, a cutter disassembling and assembling machine, a linear driving mechanism and two abutting plates, the lifting mechanism is arranged on the propelling device, and the movable seat is movably arranged on the lifting mechanism. The first hydraulic cylinder and the second hydraulic cylinder are fixedly arranged on the movable base, the linear driving mechanism is arranged on the first hydraulic cylinder, the winch is arranged on the linear driving mechanism, a traction rope on the winch is fixedly connected with the tool disassembling and assembling machine, and the two transverse moving mechanisms are arranged at the movable end of the first hydraulic cylinder and the movable end of the second hydraulic cylinder respectively. The two abutting plates are fixedly arranged on the two transverse moving mechanisms correspondingly. Therefore, the probability that potential safety hazards occur when related personnel disassemble and assemble the shield tunneling machine cutter can be effectively reduced, and the stability when the shield tunneling machine cutter is disassembled and assembled can be effectively improved.

Description

Technical Field

[0001] This utility model relates to the technical field of tunnel boring machine cutter replacement, and in particular to a tunnel boring machine cutter installation structure. Background Technology

[0002] A tunnel boring machine (TBM) is a large-scale specialized mechanical equipment used for tunnel excavation. During the excavation process, the TBM relies on the rotation of its front-end cutterhead to cut soil or rock, and uses a muck transportation system to transport the cut muck to the rear. At the same time, it uses a segment assembly system to assemble segments on the inner wall of the excavated tunnel to form a support structure, thereby achieving safe and efficient tunnel excavation.

[0003] The cutterhead of a tunnel boring machine (TBM) is a key component that directly contacts the soil or rock and performs cutting operations. There are various types of cutters, and different types of cutters are installed on the cutterhead of the TBM in a certain layout and arrangement to adapt to the tunneling needs under different geological conditions. During the tunneling process, the cutters will need to be replaced regularly due to wear in order to ensure the tunneling efficiency and construction quality of the TBM.

[0004] In related technologies, the replacement of tunnel boring machine (TBM) cutters is usually carried out in the following way: First, a propulsion device is used to push the cutter removal machine to a specific position between the front shield and the cutterhead. This propulsion device is generally based on the internal track or hydraulic system of the TBM, which can transport the cutter removal machine to the area close to the cutterhead with relatively high precision. Then, relevant personnel use hoisting equipment, such as a crane or a special hoisting rail trolley, to lift the cutter removal machine located between the front shield and the cutterhead to the cutterhead so as to disassemble and replace the worn cutters. After the cutter replacement is completed, the cutter removal machine is transported back and removed from the work area in reverse order.

[0005] However, due to the limited internal space and complex working environment of the tunnel boring machine, there are many dangerous factors in the area between the front shield and the cutterhead, such as high-pressure mud, unstable soil or rock debris. When personnel carry out the hoisting and cutting tool replacement operations in such an environment, they are very likely to be injured by accident, such as being hit by the hoisting equipment, being buried by falling debris, or being hit by flying debris during the cutting process. This makes it possible for relevant personnel to disassemble and assemble the cutterhead of the tunnel boring machine. Utility Model Content

[0006] This utility model aims to at least partially solve one of the technical problems in the related art.

[0007] Therefore, this utility model proposes a shield machine cutter installation structure, which can effectively reduce the probability of safety hazards when relevant personnel are disassembling and assembling shield machine cutters, and can also effectively improve the stability when disassembling and assembling shield machine cutters.

[0008] To achieve the above objectives, this utility model proposes a shield tunneling machine cutter mounting structure, including a propulsion device, a lifting mechanism, a first hydraulic cylinder, a second hydraulic cylinder, a movable seat, a winch, two lateral movement mechanisms, a cutter assembly / disassembly machine, a linear drive mechanism, and two abutment plates. The lifting mechanism is mounted on the propulsion device, and the movable seat is movably mounted on the lifting mechanism. The first and second hydraulic cylinders are respectively fixedly mounted on the movable seat, with their movable ends spaced apart from each other. The linear drive mechanism is mounted on the first hydraulic cylinder. The winch is mounted on the linear drive mechanism, and the traction rope on the winch is fixedly connected to the cutter assembly / disassembly machine. The two lateral movement mechanisms are respectively mounted on the movable ends of the first and second hydraulic cylinders, and the two abutment plates are respectively fixedly mounted on the two lateral movement mechanisms.

[0009] The shield machine cutter installation structure of this utility model can effectively reduce the probability of safety hazards when personnel are disassembling and assembling shield machine cutters, and can also effectively improve the stability when disassembling and assembling shield machine cutters.

[0010] In addition, the shield machine cutter mounting structure proposed in this application may also have the following additional technical features:

[0011] Specifically, the lifting mechanism includes a third hydraulic cylinder, a movable frame, and a fixed frame. The fixed frame is fixedly mounted on the propulsion device, and the movable frame is slidably connected to the fixed frame vertically. The third hydraulic cylinder is fixedly mounted on the propulsion device, and the movable end of the hydraulic cylinder is fixedly connected to the movable frame.

[0012] Specifically, the movable frame is fixedly equipped with multiple electric slides, which are arranged in parallel to each other, and the movable seat is fixedly connected to the sliding blocks on the multiple electric slides respectively.

[0013] Specifically, the linear drive mechanism includes a connecting frame, a fourth hydraulic cylinder, a mounting frame, and multiple rollers. The connecting frame is fixedly mounted on the first hydraulic cylinder, and the mounting frame is slidably connected to the connecting frame. The fourth hydraulic cylinder is fixedly mounted on the movable seat, and the movable end of the fourth hydraulic cylinder is fixedly connected to the mounting frame. The multiple rollers are respectively mounted on the mounting frame, and the bottoms of the multiple rollers are respectively abutting against the top of the connecting frame. The winch is disposed within the mounting frame.

[0014] Specifically, the lateral movement mechanism includes linear slide rails, and the sliding blocks on the two linear slide rails are respectively fixedly connected to the movable ends of the first hydraulic cylinder and the second hydraulic cylinder.

[0015] Specifically, the two abutment plates are fixedly connected to the side of the two linear slide rails away from the sliding block.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0018] Figure 1 This is a front sectional view of a shield machine cutter mounting structure according to an embodiment of the present invention;

[0019] Figure 2 This is a front view schematic diagram of the shield machine cutter mounting structure according to an embodiment of the present utility model;

[0020] Figure 3 This is a left-side view of the mounting bracket of the tunnel boring machine cutter mounting structure according to an embodiment of the present invention.

[0021] As shown in the figure: 1. Propulsion device; 2. Electric slide table; 3. Lifting mechanism; 301. Third hydraulic cylinder; 302. Movable frame; 303. Fixed frame; 4. First hydraulic cylinder; 5. Second hydraulic cylinder; 6. Movable seat; 7. Winch; 8. Lateral movement mechanism; 9. Tool assembly / disassembly machine; 10. Linear drive mechanism; 101. Connecting frame; 102. Fourth hydraulic cylinder; 103. Mounting frame; 104. Roller; 11. Abutment plate. Detailed Implementation

[0022] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. Rather, the embodiments of the present invention include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0023] The shield machine cutter mounting structure of this utility model embodiment will be described below with reference to the accompanying drawings.

[0024] The shield machine cutter installation structure provided by this utility model is mainly used in the installation process of shield machine cutters. It is used to disassemble and assemble shield machine cutters and shield machine cutterhead, which can effectively reduce the probability of safety hazards when relevant personnel disassemble and assemble shield machine cutters, and can also effectively improve the stability when disassembling and assembling shield machine cutters.

[0025] like Figures 1-3 As shown, the shield machine cutter mounting structure of this utility model embodiment may include a propulsion device 1, a lifting mechanism 3, a first hydraulic cylinder 4, a second hydraulic cylinder 5, a movable seat 6, a winch 7, two lateral movement mechanisms 8, a cutter disassembly and assembly machine 9, a linear drive mechanism 10, and two abutment plates 11.

[0026] The lifting mechanism 3 is mounted on the propulsion device 1, and the movable seat 6 is movably mounted on the lifting mechanism 3. The first hydraulic cylinder 4 and the second hydraulic cylinder 5 are respectively fixedly mounted on the movable seat 6, and the movable ends of the first hydraulic cylinder 4 and the second hydraulic cylinder 5 are set far apart from each other. The linear drive mechanism 10 is mounted on the first hydraulic cylinder 4, and the winch 7 is mounted on the linear drive mechanism 10. The traction rope on the winch 7 is fixedly connected to the tool disassembly and assembly machine 9. The two transverse movement mechanisms 8 are respectively mounted on the movable ends of the first hydraulic cylinder 4 and the second hydraulic cylinder 5, and the two abutment plates 11 are respectively fixedly mounted on the two transverse movement mechanisms 8.

[0027] The lifting mechanism 3 may include a third hydraulic cylinder 301, a movable frame 302, and a fixed frame 303.

[0028] The fixed frame 303 is fixedly mounted on the propulsion device 1, the movable frame 302 is slidably connected to the fixed frame 303, and the third hydraulic cylinder 301 is fixedly mounted on the propulsion device 1, with the movable end of the hydraulic cylinder fixedly connected to the movable frame 302.

[0029] Multiple electric slides 2 are fixedly installed on the movable frame 302. The multiple electric slides 2 are arranged in parallel to each other, and the movable seat 6 is fixedly connected to the sliding blocks on the multiple electric slides 2 respectively.

[0030] In one embodiment of the present invention, the transverse mechanism 8 may include linear slide rails, with sliding blocks on the two linear slide rails fixedly connected to the movable ends of the first hydraulic cylinder 4 and the second hydraulic cylinder 5, respectively, and two abutment plates 11 fixedly connected to the side of the two linear slide rails away from the sliding blocks, respectively.

[0031] It should be noted that the propulsion device 1 and the tool disassembly and assembly machine 9 described in this embodiment are both existing technologies, and therefore will not be described in detail here.

[0032] Specifically, when replacing the cutterhead of a tunnel boring machine (TBM), personnel first open the hatch on the front shield (a common feature of TBMs in the prior art). Then, the cutterhead removal and installation machine 9 is transported between the front shield and the cutterhead using the propulsion device 1. Next, personnel activate the third hydraulic cylinder 301 to lift the movable frame 302 to a designated height. Subsequently, the first hydraulic cylinder 4 and the second hydraulic cylinder 5 are activated to drive the two linear guide rails to move away from each other until the two contact plates 11 contact the sides of the cutterhead and front shield that are close to each other, further providing stable support for the movable frame 302. To ensure the stability of the movable frame 302, relevant personnel simultaneously activate multiple electric slides 2 to drive the movable seat 6 to move horizontally in a linear motion, thereby readjusting the position of the tool removal and installation machine 9. Then, the tool removal and installation machine 9 is driven by the linear drive mechanism 10 to transport the tool to the cutter head where the tool needs to be removed or installed. The height of the tool removal and installation machine 9 is readjusted by the winch 7. Finally, the tool removal and installation machine 9 is used to remove, install, or replace the tool. This effectively reduces the probability of safety hazards when relevant personnel are removing and installing the shield machine tools, and also effectively improves the stability when removing and installing the shield machine tools.

[0033] In one embodiment of this utility model, such as Figures 1-3 As shown, the linear drive mechanism 10 may include a connecting frame 101, a fourth hydraulic cylinder 102, a mounting frame 103, and a plurality of rollers 104.

[0034] The connecting frame 101 is fixedly mounted on the first hydraulic cylinder 4, and the mounting frame 103 is slidably connected to the connecting frame 101. The fourth hydraulic cylinder 102 is fixedly mounted on the movable seat 6, and the movable end of the fourth hydraulic cylinder 102 is fixedly connected to the mounting frame 103. Multiple rollers 104 are respectively mounted on the mounting frame 103, and the bottom of the multiple rollers 104 is respectively abutted against the top of the connecting frame 101. The winch 7 is mounted inside the mounting frame 103.

[0035] Specifically, the relevant personnel activate the fourth hydraulic cylinder 102 to advance the mounting frame 103, thereby driving the winch 7 to adjust the position of the tool disassembly and assembly machine 9 through the mounting frame 103. The multiple rollers 104 are provided to further improve the stability between the mounting frame 103 and the connecting frame 101.

[0036] In summary, the shield machine cutter mounting structure of this utility model embodiment can effectively reduce the probability of safety hazards when personnel are disassembling and assembling shield machine cutters, and can also effectively improve the stability when disassembling and assembling shield machine cutters.

[0037] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0038] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," 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. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0039] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A shield tunneling machine cutter mounting structure, characterized in that, It includes a propulsion device, a lifting mechanism, a first hydraulic cylinder, a second hydraulic cylinder, a movable seat, a winch, two traversing mechanisms, a tool loading and unloading machine, a linear drive mechanism, and two abutment plates, among which... The lifting mechanism is mounted on the propulsion device, and the movable seat is movably mounted on the lifting mechanism; The first hydraulic cylinder and the second hydraulic cylinder are respectively fixedly mounted on the movable seat, and the movable ends of the first hydraulic cylinder and the second hydraulic cylinder are positioned far apart from each other; The linear drive mechanism is mounted on the first hydraulic cylinder; The winch is mounted on the linear drive mechanism, and the traction rope on the winch is fixedly connected to the tool disassembly and assembly machine. The two lateral movement mechanisms are respectively disposed at the movable ends of the first hydraulic cylinder and the second hydraulic cylinder, and the two abutment plates are respectively fixedly disposed on the two lateral movement mechanisms.

2. The shield machine cutter mounting structure according to claim 1, characterized in that, The lifting mechanism includes a third hydraulic cylinder, a movable frame, and a fixed frame, wherein... The fixed frame is fixedly mounted on the propulsion device, and the movable frame is slidably connected to the fixed frame vertically. The third hydraulic cylinder is fixedly mounted on the propulsion device, and the movable end of the hydraulic cylinder is fixedly connected to the movable frame.

3. The shield machine cutter mounting structure according to claim 2, characterized in that, The movable frame is fixedly equipped with multiple electric slides, which are arranged in parallel to each other, and the movable seat is fixedly connected to the sliding blocks on the multiple electric slides respectively.

4. The shield machine cutter mounting structure according to claim 3, characterized in that, The linear drive mechanism includes a connecting frame, a fourth hydraulic cylinder, a mounting frame, and multiple rollers, wherein... The connecting frame is fixedly mounted on the first hydraulic cylinder, and the mounting bracket is slidably connected to the connecting frame; The fourth hydraulic cylinder is fixedly mounted on the movable seat, and the movable end of the fourth hydraulic cylinder is fixedly connected to the mounting bracket. The plurality of rollers are respectively disposed on the mounting frame, and the bottom of the plurality of rollers respectively abuts and is connected to the top of the connecting frame; The winch is installed inside the mounting frame.

5. The shield machine cutter mounting structure according to claim 1, characterized in that, The lateral movement mechanism includes linear slide rails, and the sliding blocks on the two linear slide rails are respectively fixedly connected to the movable ends of the first hydraulic cylinder and the second hydraulic cylinder.

6. The shield machine cutter mounting structure according to claim 5, characterized in that, The two abutment plates are respectively fixedly connected to the side of the two linear slide rails away from the sliding block.

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