Quickly disassembled shield machine shield body connecting piece structure

Abstract

The utility model provides a quick dismounting type shield machine shield body connecting piece structure relates to shield machine shield body connecting piece technical field, including the cutter head and the shield ring still includes the fixed part setting in the side of above -mentioned cutter head, the clamping claw rotation setting in the inboard of fixed part is used for to the clamping fixed of shield ring, the clamping piece sets up in the one end outside of shield ring, moves through the first jacking cylinder and drives the limit ring, utilizes its outside annular recess to pull the limit and pulls out the head to make the clamping claw rotate and to the middle inboard clamping, the end of clamping claw is clamped into the clamping groove in the end of shield ring inboard realizes the limit and clamping fixed of shield ring, and the relative force of the cutter head is produced when working.

Description

Technical Field

[0001] This utility model relates to the technical field of shield body connectors for tunnel boring machines, and in particular to a quick-assembly and disassembly shield body connector structure for tunnel boring machines. Background Technology

[0002] A tunnel boring machine (TBM) is a large-scale specialized mechanical equipment used for tunnel excavation. It is widely used in underground tunnel projects such as subways, highways, railways, and municipal pipelines. Its working principle is similar to a movable metal shell. The cutterhead at the front of the shell rotates and cuts the soil, while the propulsion system propels the whole machine forward. It completes the installation of the lining structure while excavating the tunnel, realizing rapid and safe tunnel construction. The shield body is the key structural component of the TBM. It is essentially a cylindrical metal pressure-bearing shell, which is equivalent to a "temporary support structure" and "construction protection cover" in the tunnel excavation process.

[0003] A search revealed that Chinese patent CN208206087U discloses a fully automatic shield roundness detection device for tunnel boring machines (TBMs), comprising a host computer, a data receiver, an angle sensor, and a rangefinder. The angle sensor is fixedly mounted on the cutterhead panel of the TBM and transmits the measurement signals sequentially to the data receiver. The rangefinder is fixedly mounted at the edge of the cutterhead and on the outer side of the shield body. The device is simple to operate, safe, highly automated, significantly improves detection efficiency, and provides good results in shield roundness analysis.

[0004] However, during the implementation of the above technical solution, at least the following technical problems were discovered:

[0005] The connection relationships are quite complicated: the complicated connection structure requires a large number of bolts, flanges or complex mechanical parts to be assembled one by one. A single disassembly and assembly may take several hours or even longer. Especially in the environment of limited space in the tunnel, the operation difficulty is further increased, which seriously affects the efficiency of the tunnel boring machine's relocation and the construction progress. The complex connection requires professional technicians to cooperate with the lifting equipment to operate, which significantly increases labor costs and equipment wear and tear. If the connecting parts are worn or deformed due to frequent disassembly and assembly, they also need to be replaced regularly, further increasing maintenance costs.

[0006] Debris can easily enter gaps: Once debris enters gaps, connecting parts need to be disassembled for thorough cleaning. Especially when working in the confined space of a tunnel, it may take several hours or even days, seriously delaying the construction progress. If debris accumulates for a long time, it may also mix with grease and soil to form hard lumps, further increasing the difficulty of cleaning. Utility Model Content

[0007] The purpose of this utility model is to provide a quick-assembly and disassembly shield body connecting component structure for tunnel boring machines (TBMs). This solves the problem of cumbersome connection structures that rely on a large number of bolts, flanges, or complex mechanical parts for piece-by-piece assembly. A single assembly or disassembly may take several hours or even longer, especially in the confined space of a tunnel, further increasing the difficulty of operation and seriously affecting the efficiency of TBM relocation and construction progress. Complex connections require professional technicians to operate with lifting equipment, significantly increasing labor costs and equipment wear. If the connecting components are worn or deformed due to frequent assembly and disassembly, they need to be replaced regularly, further increasing maintenance costs. After debris enters the gaps, the connecting components need to be disassembled for thorough cleaning, which may take several hours or even days, especially when working in the confined space of a tunnel, seriously delaying the construction progress. If debris accumulates for a long time, it may mix with grease and soil to form hard lumps, further increasing the difficulty of cleaning.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: a quick-assembly and disassembly shield body connecting component structure for a tunnel boring machine, including a cutterhead and a shield ring, and a fixing component disposed on one side of the cutterhead, a clamping claw rotatably disposed on the inner side of the fixing component for clamping and fixing the shield ring, the clamping component being disposed on the outer side of one end of the shield ring, and a clamping ring being disposed on the outer side of one end of the shield ring and the cutterhead.

[0009] In a preferred embodiment, the fixing member includes a collar fixedly disposed on the outer side of one end of the cutter head, a limiting ring movably disposed on the inner side of the end of the collar, and a first lifting cylinder installed on the inner side of one end of the collar for driving the limiting ring to move laterally on the inner side of the collar.

[0010] In a preferred embodiment, a limiting dial is provided on the outer side of one end of the clamping claw, and the limiting dial is disposed inside the annular groove of the limiting ring.

[0011] In a preferred embodiment, a slot is provided on the inner side of one end of the shield ring, and the clamping claw clamps and limits the shield ring through the slot.

[0012] In a preferred embodiment, the clamping member includes a support base disposed below the shield ring for connecting the clamping ring to support the cutter head and the shield ring. A rotating arm is rotatably disposed on the outer sides of both ends of the support base, and a sliding block is slidably disposed on the outer side of the end of the support base. The upper surface of the sliding block is connected to the outer side of the bottom end of the clamping ring.

[0013] In a preferred embodiment, a first column is fixedly provided on the outer sides of both ends of the sliding block, and the first column is provided on the inner side of the through groove opened at the top of the rotating arm.

[0014] In a preferred embodiment, a pull plate is provided on the inner side of the bottom end of the support base, and a second column is fixedly provided on the outer sides of both ends of the pull plate. The second column is located on the inner side of the through groove opened at the other end of the rotating arm.

[0015] In a preferred embodiment, a plurality of second lifting cylinders are installed on the inner side of the bottom end of the support base, and the outer side of the end of the second lifting cylinder is connected to the lower surface of the pull plate.

[0016] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0017] 1. In use, this utility model uses a first lifting cylinder to move a limiting ring. The outer annular groove of the limiting ring pulls a limiting head, causing the clamping claws to rotate and clamp towards the inner center. The end of the clamping claws is engaged in the groove at the end of the shield ring, achieving limiting and clamping fixation of the shield ring. This design is convenient and efficient for assembly and disassembly. The relative force generated by the cutterhead during operation pushes it towards the shield ring, causing relative movement between the cutterhead and the shield ring. The shield ring continuously presses against the limiting ring, causing it to tend to move towards the cutterhead. This tendency, through the limiting head, further increases the clamping force of the multiple clamping claws on the shield ring, creating a dynamic reinforcement effect where "the greater the workload, the stronger the clamping force." This not only ensures that the shield connection remains tight and stable during the operation of the tunnel boring machine, but also effectively resists the risk of loosening caused by vibration, impact, and other working conditions, significantly improving the safety and reliability of the tunnel boring machine operation.

[0018] 2. In use, the second lifting cylinder is activated to drive the pull plate to descend vertically, causing the second column to move within the through groove at the bottom of the rotating arm and forcing the bottom of the rotating arm to rotate outward. The other end of the column drives the first column and the sliding block to clamp towards the center through the through groove, thereby achieving clamping and limiting of the clamping ring on the shield ring and the cutter head end. The operation is convenient and efficient. During the clamping process, it can reduce the entry of debris into the connection gap, improve the sealing and cleanliness of the connection, and prevent debris from affecting the connection stability and equipment operation reliability. Attached Figure Description

[0019] Figure 1 A front view structural schematic diagram of a quick-assembly and disassembly shield body connecting component structure for a tunnel boring machine provided by this utility model;

[0020] Figure 2 A schematic diagram of the support base and rotating arm in a quick-assembly and disassembly shield body connector structure for a tunnel boring machine provided by this utility model;

[0021] Figure 3 A schematic diagram of the shield ring and clamping claws in a quick-assembly and disassembly shield machine shield body connecting component structure provided by this utility model;

[0022] Figure 4A schematic diagram of the collar and slot in a quick-assembly shield body connector structure for a tunnel boring machine provided by this utility model;

[0023] Figure 5 A schematic diagram of the collar and limiting ring in a quick-assembly shield body connector structure for a tunnel boring machine provided by this utility model;

[0024] Figure 6 This utility model provides a quick-assembly and disassembly shield body connecting component structure for tunnel boring machines. Figure 5 Enlarged view of point A in the middle.

[0025] Legend:

[0026] 1. Cutter head; 2. Shield ring; 3. Clamping claw; 301. Collar; 302. Limiting ring; 303. First lifting cylinder; 304. Limiting dial; 305. Slot; 4. Clamping ring; 401. Support base; 402. Rotating arm; 403. Sliding block; 404. First column; 405. Pull plate; 406. Second column; 407. Second lifting cylinder. Detailed Implementation

[0027] 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.

[0028] Example 1

[0029] In this embodiment, a quick-assembly and disassembly shield body connector structure for a tunnel boring machine is provided, such as... Figures 4 to 6 As shown, it includes a cutter head 1, a shield ring 2, a clamping claw 3, and a fixing component;

[0030] The fixing components include: a collar 301 fixedly connected to the outer side of the end of the cutter head 1 for mounting a clamping claw 3; the clamping claw 3 is rotatably connected to the inner side of a groove at the end of the collar 301 for clamping a slot 305 at the outer side of the end of the shield ring 2; the end of the shield ring 2 can extend into the inner side of the collar 301; a plurality of first lifting cylinders 303 are annularly mounted on the inner side of the collar 301; a limit ring 302 is fixedly connected to the outer side of the end of the first lifting cylinder 303; the first lifting cylinder 303 is used to drive the limit ring 302 to move within the inner side of the collar 301; a limit dial 304 is fixedly connected to the outer side of one end of the clamping claw 3; the limit dial 304 is disposed within the annular groove of the limit ring 302 and contacts its inner side; the limit ring 302 is used to drive the clamping claw 3 to rotate.

[0031] Among them, the outer end of the shield ring 2 abuts against one side of the limiting ring 302.

[0032] In the specific implementation process: When using the device, the user can move the end of the shield ring 2 into the inner side of the collar 301. At this time, the first lifting cylinder 303 is activated. The first lifting cylinder 303 drives the limiting ring 302 to move away from the shield ring 2. At this time, the limiting ring 302 pulls the limiting dial 304 through its outer annular groove. Then, the limiting dial 304 pulls the clamping claw 3 to rotate, thereby clamping the clamping claw 3 inward towards the center and locking the end of the clamping claw 3 into the shield. The inner side of the slot 305 at the end of ring 2 limits the shield ring 2. At this time, multiple clamping claws 3 can clamp and fix the shield ring 2. At the same time, when the cutter head 1 is working, it will generate a relative force, pushing the cutter head 1 to move towards the shield ring 2. At this time, the cutter head 1 and the shield ring 2 move relative to each other. The shield ring 2 will continuously press against the limiting ring 302, so that the limiting ring 302 has a tendency to move towards the cutter head 1. The clamping force of the multiple clamping claws 3 on the shield ring 2 is further increased by the limiting dial 304.

[0033] Example 2

[0034] In this embodiment, a quick-assembly and disassembly shield body connector structure for a tunnel boring machine is provided, such as... Figure 1 and Figure 2 As shown, it includes a cutter head 1, a shield ring 2, a clamping ring 4, and clamping components;

[0035] The clamping components include: a support base 401 disposed on the outer side of the ends of the cutter head 1 and the shield ring 2; a sliding block 403 slidably connected to the outer side of the top of the support base 401 for driving the two clamping rings 4 to clamp towards the center; rotating arms 402 rotatably connected to both sides of the support base 401; first columns 404 fixedly connected to the outer sides of both ends of the sliding block 403 for cooperating with the through slots opened in the rotating arms 402; multiple second lifting cylinders 407 installed on the inner side of the bottom end of the support base 401; a pull plate 405 fixedly connected to the outer side of the end of the second lifting cylinder 407; second columns 406 fixedly connected to the outer sides of both ends of the pull plate 405; the second columns 406 are disposed on the inner side of the through slots opened at the bottom end of the rotating arms 402 for driving the rotating arms 402 to rotate, thereby driving the sliding block 403 to slide through the first columns 404.

[0036] The clamping ring 4 is a ring structure with an arc-shaped groove on its inner side. One end of the shield ring 2 and one end of the cutter head 1 are located on the inner side of the arc-shaped groove of the clamping ring 4 to limit their movement.

[0037] In the specific implementation process, the user can activate the second lifting cylinder 407, which drives the pull plate 405 to descend vertically. As the pull plate 405 descends vertically, it will drive the second column 406 to move inside the through slot at the bottom of the rotating arm 402, thereby forcing the bottom of the rotating arm 402 to rotate outward. While the rotating arm 402 is rotating, its other end will drive the first column 404 and the sliding block 403 to clamp towards the center through the through slot, thereby driving the clamping ring 4 to clamp one end of the shield ring 2 and one end of the cutter head 1, limiting their movement and reducing the entry of debris into the connection gap.

[0038] Working principle:

[0039] Based on Example 1, the first lifting cylinder 303 drives the limiting ring 302 to move, and the outer annular groove pulls the limiting head 304 to rotate the clamping claw 3 and clamp it inward. The end of the clamping claw 3 is inserted into the groove 305 at the end of the shield ring 2 to limit and fix the shield ring 2. The assembly and disassembly are convenient and efficient. The relative force generated by the cutterhead 1 during operation pushes the cutterhead 1 towards the shield ring 2, causing the cutterhead 1 and the shield ring 2 to move relative to each other. The shield ring 2 continuously presses against the limiting ring 302, causing it to tend to move towards the cutterhead 1. This tendency is further increased by the limiting head 304, which increases the clamping force of the multiple clamping claws 3 on the shield ring 2, forming a dynamic reinforcement effect of "the greater the workload, the stronger the clamping force". This not only ensures that the shield connection part remains tight and stable during the operation of the tunnel boring machine, but also effectively resists the risk of loosening caused by vibration, impact and other working conditions, and greatly improves the safety and reliability of the tunnel boring machine operation.

[0040] Based on Example 2, by activating the second lifting cylinder 407, the pull plate 405 is driven to descend vertically, causing the second column 406 to move within the through groove at the bottom of the rotating arm 402 and forcing the bottom of the rotating arm 402 to rotate outward. Its other end drives the first column 404 and the sliding block 403 to clamp towards the center through the through groove, thereby achieving the clamping and limiting of the clamping ring 4 on the shield ring 2 and the cutter head 1. The operation is convenient and efficient. During the clamping process, it can reduce the entry of debris into the connection gap, improve the sealing and cleanliness of the connection, and avoid debris affecting the connection stability and equipment operation reliability.

[0041] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A quick detachable shield machine shield body connecting piece structure, comprising a cutter head (1) and a shield ring (2), characterized in that: Also includes: A fixing element is provided on one side of the aforementioned cutter head (1); The clamping claw (3) is rotatably disposed on the inner side of the fixing member and is used to clamp and fix the shield ring (2); A clamping element is disposed on the outer side of one end of the shield ring (2); A clamping ring (4) is disposed on the outer side of one end of the shield ring (2) and the cutter head (1); The fastener includes: A collar (301) is fixedly disposed on the outer side of one end of the cutter head (1); A limiting ring (302) is movably disposed on the inner side of the end of the collar (301); The first lifting cylinder (303) is installed on the inner side of one end of the collar (301) and is used to drive the limiting ring (302) to move laterally inside the collar (301); A limiting head (304) is provided on the outer side of one end of the clamping claw (3), and the limiting head (304) is located inside the annular groove of the limiting ring (302); A slot (305) is provided on the inner side of one end of the shield ring (2), and the clamping claw (3) clamps and limits the shield ring (2) through the slot (305).

2. The quick-assembly and disassembly shield body connecting component structure of a tunnel boring machine according to claim 1, characterized in that: The clamping element includes: A support base (401) is provided below the shield ring (2) and is used to connect the clamping ring (4) to support the cutter head (1) and the shield ring (2); Rotating arms (402) are rotatably disposed on the outer sides of both ends of the support base (401); The sliding block (403) is slidably disposed on the outer side of the end of the support base (401), and the upper surface of the sliding block (403) is connected to the outer side of the bottom end of the clamping ring (4).

3. The quick-assembly and disassembly shield machine shield body connecting component structure according to claim 2, characterized in that: The sliding block (403) has a first column (404) fixedly installed on the outer sides of both ends. The first column (404) is located on the inner side of the through groove at the top of the rotating arm (402).

4. The quick-assembly and disassembly shield body connecting component structure of a tunnel boring machine according to claim 3, characterized in that: A pull plate (405) is provided on the inner side of the bottom end of the support base (401), and a second column (406) is fixedly provided on the outer sides of both ends of the pull plate (405). The second column (406) is provided on the inner side of the through groove opened at the other end of the rotating arm (402).

5. The quick-assembly and disassembly shield body connecting component structure for a tunnel boring machine according to claim 4, characterized in that: Multiple second lifting cylinders (407) are installed on the inner side of the bottom end of the support base (401), and the outer side of the end of the second lifting cylinder (407) is connected to the lower surface of the pull plate (405).

Images