Tunneling machine cutter transport device

Abstract

The application discloses a shield machine cutter conveying device, which comprises a conveying track and a lifting device structure, wherein the conveying track is detachably connected with a plurality of track sections, the conveying track is arranged between a man cabin of the shield machine and a soil bin behind a cutter head of the shield machine, and the lifting device structure is arranged above the conveying track and used for conveying the cutter on the conveying track and comprises a fixed lifting device arranged above the man cabin. The application solves the problem that the existing shield machine cannot realize continuous conveying when the cutter is conveyed and replaced through the man cabin, needs to be conveyed multiple times in the man cabin and a transition bin, and is inconvenient and time-consuming and labor-consuming in operation, and realizes continuous conveying of the cutter conveyed through the man cabin.

Description

Technical Field

[0001] This invention relates to the field of tunnel construction technology, and in particular to a shield tunneling machine cutter transport device. Background Technology

[0002] Tunnel boring machines (TBMs) are widely used in subway construction, large-diameter tunnels, and underground pipeline projects due to their excellent ground settlement control, high excavation efficiency, and broad adaptability to various geological formations. The cutterhead is one of the essential components of a TBM. During TBM construction, especially in hard rock environments, wear and tear on the cutterhead's cutting tools is inevitable. To replace severely worn tools, a suitable transport route is needed to move the tools from the rear of the TBM to the cutterhead, thus completing the tool replacement operation.

[0003] Currently, when transporting cutting tools through the personnel compartment of a tunnel boring machine (TBM), a track or chain hoist is typically used. However, the limited space within the personnel compartment restricts the lifting height of the track, resulting in poor on-site performance. Using a chain hoist requires operators to continuously cycle and release it, which is time-consuming and labor-intensive. Therefore, improving the convenience of transporting cutting tools through the personnel compartment has become an urgent problem to be solved. Summary of the Invention

[0004] The purpose of this invention is to provide a tunnel boring machine (TBM) cutter transport device that solves the problem that existing TBM cutters cannot be continuously transported when being moved and replaced through the man-room compartment, requiring multiple transfers within the man-room and transition compartments, which is inconvenient, time-consuming, and labor-intensive.

[0005] The above-mentioned objectives of this invention are mainly achieved through the following technical solutions:

[0006] This invention provides a tunnel boring machine cutter transport device, comprising:

[0007] The transport track has multiple detachably connected track sections, and the transport track is set between the man cabin of the tunnel boring machine and the soil chamber at the rear of the cutterhead of the tunnel boring machine;

[0008] A lifting structure, located above the transport track, is used to transport tools located on the transport track, and includes a fixed lifting device disposed above the man cabin.

[0009] As described above, in the shield machine cutter transport device, multiple track sections are arranged on the same straight line along the direction from the man cabin to the soil chamber. The lifting device structure also includes a first temporary lifting device, which is located above the transport track near the cutterhead.

[0010] As described above, in the tunnel boring machine cutter transport device, multiple track sections are arranged at different heights along the direction from the personnel compartment to the soil compartment, and the lifting structure further includes at least one second temporary lifting device, which is disposed between two adjacent track sections.

[0011] In the shield machine cutter transport device described above, the track section further comprises two symmetrically spliced ​​base blocks, and a receiving groove for accommodating the cutter is formed between the opposite sidewalls of the two base blocks.

[0012] In the shield machine cutter transport device described above, the track section further includes a connecting plate, which connects between the two base blocks and forms the bottom of the receiving groove.

[0013] As described above, the tunnel boring machine cutter transport device further includes a track section that includes multiple support bodies spaced apart, two base blocks located on both sides of the multiple support bodies, and cutter grooves for accommodating the cutter formed between two adjacent support bodies and between adjacent support bodies and base blocks.

[0014] In the shield tunneling machine cutter transport device described above, the two ends of the track section are connected to flanges, and the flanges on each track section can be mated and connected to each other by fasteners.

[0015] In the shield machine cutter transport device described above, further, each of the track sections has multiple ribs spaced apart along the length of the track section on both sides.

[0016] In the shield machine cutter transport device described above, a shield body is provided between the man cabin of the shield machine and the earth chamber of the shield machine, and the transport track is fixedly connected to the bottom of the shield body and the bottom of the man cabin through a connecting structure.

[0017] The tunnel boring machine cutter transport device described above is further capable of transporting the cutter under both atmospheric pressure and pressurized conditions, wherein:

[0018] Under normal pressure transport conditions, the soil chamber, the shield body, and the personnel cabin are all in communication with the atmosphere;

[0019] Under pressurized transport conditions, the soil chamber is isolated from the atmosphere, and the pressure of the soil chamber is greater than the pressure of the atmosphere.

[0020] Compared with the prior art, the technical solution of the present invention has the following characteristics and advantages:

[0021] The present invention provides a transport track consisting of multiple track sections connected inside the man cabin and the shield body. These track sections can be easily disassembled and installed. The transport track and the lifting device above it can realize the continuous transport of cutting tools through the man cabin. At the same time, the detachable transport track can realize the transport of cutting tools under both atmospheric pressure and pressurized conditions of the tunnel boring machine.

[0022] This invention also provides various track sections with different structures, which can realize the transportation of different types of cutting tools, avoiding the need to change the transport track multiple times when transporting cutting tools of different widths. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings:

[0024] Figure 1 This is a schematic diagram of a structure of an embodiment of the tunnel boring machine cutter transport device of the present invention;

[0025] Figure 2 This is a schematic diagram of another embodiment of the tunnel boring machine cutter transport device described in this invention;

[0026] Figure 3 This is a schematic diagram of the shield machine cutter transport device described in this invention inside the soil chamber;

[0027] Figure 4 This is another structural schematic diagram of the shield machine cutter transport device described in this invention inside the soil chamber;

[0028] Figure 5 This is a schematic diagram of another embodiment of the tunnel boring machine cutter transport device described in this invention;

[0029] Figure 6 This is a schematic diagram of the structure of one embodiment of the track section described in this invention;

[0030] Figure 7 This is a schematic diagram of another embodiment of the track section described in this invention;

[0031] Figure 8 This is a schematic diagram of another embodiment of the track section described in this invention;

[0032] Figure 9 The transport track for single-edged cutting tools;

[0033] Figure 10For transporting double-edged cutting tools;

[0034] Figure 11 For transporting double-barreled cutting tools;

[0035] Figure 12 The orbital section described herein;

[0036] Figure 13 The transport track is formed by connecting two track sections as described in this invention;

[0037] Figure 14 This is a schematic diagram of the transport device under pressurized transport conditions as described in this invention.

[0038] Explanation of icon numbers:

[0039] 1. Transport track; 11. Track section; 111. Foundation block; 112. Connecting plate; 113. Support body; 114. Flange; 115. Rib plate; 12. Receiving groove; 13. Cutting tool groove; 2. Lifting device structure; 21. Fixed lifting device; 22. First temporary lifting device; 23. Second temporary lifting device; 3. Personnel compartment; 4. Shield body; 5. Soil chamber; 6. Cutting head; 7. Cutting tools. Detailed Implementation

[0040] To enable those skilled in the art to better understand the technical solutions of this invention, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this invention.

[0041] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the specification of this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0043] This invention provides a tunnel boring machine cutter transport device, comprising:

[0044] The transport track 1 has multiple detachable and interconnected track sections 11. The transport track 1 is set between the man cabin 3 of the tunnel boring machine and the soil chamber 5 at the rear of the cutterhead 6 of the tunnel boring machine.

[0045] The lifting structure 2 is located above the transport track 1. The lifting structure 2 is used to transport the cutter 7 located on the transport track. It includes a fixed lifting device 21 set above the manhole 3.

[0046] The shield machine cutter transport device of the present invention, wherein the transport track 1 and the lifting structure 2 cooperate with each other to realize the continuous and rapid replacement of the cutter 7 on the shield machine cutterhead 6, and the multiple detachable and connected track sections 11 can adjust the length of the transport track 1 according to actual needs, leaving enough working space for the operators.

[0047] Specifically, such as Figure 1 As shown, the tunnel boring machine has a man cabin 3, a shield body 4, a soil chamber 5, and a cutterhead 6 connected in sequence along its forward direction. The soil chamber 5 is located at the rear of the cutterhead 6, and cutters 7 are installed on the cutterhead 6. A fixed hoist 21 is installed on the upper part of the man cabin 3. A transport track 1 formed by multiple track sections 11 connected in sequence is located at the lower part of the man cabin 3 and can extend from the man cabin 3 to the soil chamber 5. When the cutter 7 on the cutterhead 6 needs to be replaced, the workers inside the earth chamber 5 remove the cutter 7 to be replaced from the cutterhead 6 and place it on the transport track 1 near the end of the earth chamber 5. Then, the cutter 7 is transported to the man-cabin 3 by rolling or sliding through the shield body 4. The workers inside the man-cabin 3 hook the cutter 7 transported to the man-cabin 3 onto the fixed lifting device 21 on the upper part of the man-cabin 3, and transport the cutter 7 to the outside of the tunnel boring machine through the fixed lifting device 21. Then, the new cutter 7 is transported to the transport track 1 inside the man-cabin 3 through the fixed lifting device 21, and then transported to the earth chamber 5 through the transport track 1. The workers inside the earth chamber 5 install the new cutter 7 on the cutterhead 6 to complete the replacement of the corresponding cutter 7 on the cutterhead 6.

[0048] Furthermore, the transport track 1, composed of multiple detachable and interconnected track sections 11, allows for length adjustment based on the internal space and working space of the tunnel boring machine; for example... Figure 2 As shown, the transport track 1 can extend from inside the manhole 3 in the opposite direction to the tunnel boring machine's forward direction. The length of the transport track 1 can be rationally arranged according to the internal space of the tunnel boring machine, reducing the length of the cutter 7 transported via the fixed lifting device 21, which is beneficial for the continuous transport of the cutter 7. For example... Figure 3 and Figure 4As shown, the track section 11 extending into the soil chamber 5 can be disassembled and installed according to the actual working space requirements. When the operator disassembles and installs the cutter 7 on the cutter head 6 inside the soil chamber 5, one track section 11 extending into the soil chamber 5 can be disassembled to ensure sufficient working space inside the soil chamber 5. When the operator completes the disassembly of the cutter 7 and needs to transport the cutter 7, the disassembled track section 11 can be installed to facilitate the transportation of the cutter 7.

[0049] In this invention, such as Figure 1 As shown, multiple track sections 11 are arranged in the same straight line along the direction from the man cabin 3 to the soil chamber 5. The lifting structure 2 also includes a first temporary lifting device 22, which is set above the end of the transport track 1 near the cutterhead 6.

[0050] Specifically, in this embodiment, the first temporary lifting device 22 is located at the upper part of the soil chamber 5 and is set above the end of the transport track 1 near the cutter head 6. The first temporary lifting device 22 can assist in the transport of the cutter 7 inside the soil chamber 5. The first temporary lifting device 22 can lift the cutter 7 off the transport track 1 or lift the cutter 7 onto the transport track 1, thus serving the purpose of assisting in the lifting and transport inside the soil chamber 5.

[0051] According to one embodiment of the present invention, such as Figure 5 The multiple track sections 11 shown are arranged at different heights along the direction from the man cabin 3 to the soil chamber 5. The lifting structure 2 also includes at least one second temporary lifting device 23, which is set between two adjacent track sections 11.

[0052] The transport track 1 is composed of multiple detachable track sections 11. Therefore, the transport track 1 can be divided into multiple sections and installed at different heights along the direction from the man cabin 3 to the earth chamber 5, depending on the structure of the man cabin 3 and the shield body 4 inside the tunnel boring machine. This can meet the installation requirements of the transport track 1 inside tunnel boring machines with different structures.

[0053] Specifically, in this embodiment, the transport track 1 is divided into two sections: one track section 11 located inside the manhole 3 and the other track section 11 located inside the shield body 4. A second temporary lifting device 23 is installed above the junction of the two track sections 11, and the second temporary lifting device 23 is located inside the shield body 4. This second temporary lifting device 23 can realize the transport of the cutting tool 7 between the two track sections 11, serving as an auxiliary lifting device.

[0054] According to one embodiment of the present invention, such as Figure 6 and Figure 9 As shown, the track section 11 includes two symmetrically spliced ​​base blocks 111, and a receiving groove 12 for accommodating the cutting tool 7 is formed between the opposite side walls of the two base blocks 111.

[0055] Specifically, the two base blocks 111 of the track section 11 are elongated structures. The two base blocks 111 are symmetrically spliced ​​together to form the track section 11. The two base blocks 111 can be connected by fasteners or by setting a connecting structure at the connection point, which is not specifically limited here. After the two base blocks 111 are symmetrically spliced, a V-shaped receiving groove 12 is formed between the two base blocks 111. The tool 7 can be placed inside the receiving groove 12 and roll or slide within the receiving groove 12 along the direction of the transport track 1, thereby realizing the transport of the tool 7 on the transport track 1.

[0056] According to one embodiment of the present invention, such as Figure 7 As shown, the track section 11 also includes a connecting plate 112, which is connected between the two base blocks 111 and forms the bottom of the receiving groove 12.

[0057] The connecting plate 112 is located between two base blocks 111. Depending on the width of the cutting tool 7, the connecting plate 112 of different widths can be replaced between the two base blocks 111, thus avoiding the need to change the transport track 1 multiple times when transporting cutting tools 7 of different widths.

[0058] Specifically, the connecting plate 112 can be connected to the base block 111 via a connector. After the two base blocks 111 and the connecting plate 112 are joined, a receiving groove 12 is formed between them. The cutting tool 7 can be placed inside the receiving groove 12 and roll or slide within it along the direction of the transport track 1, thereby realizing the transport of the cutting tool 7 on the transport track 1. The connecting plate 112 is available in different widths, and different widths of connecting plates 112 can be selected according to the width of the cutting tool 7. This embodiment only provides one width of connecting plate 112. In other embodiments, the track section 11 has different widths due to the connection of connecting plates 112 of different widths, enabling the transport of different types of cutting tools 7.

[0059] According to one embodiment of the present invention, such as Figure 8 , Figure 10 and Figure 11 As shown, the track section 11 also includes a plurality of supports 113 spaced apart, and two base blocks 111 are located on both sides of the plurality of supports 113. Adjacent supports 113 and between adjacent supports 113 and base blocks 111, a groove 13 for accommodating the cutting tool 7 is formed.

[0060] By setting a support body 113 inside the track section 11, various types of tool grooves 13 can be formed inside the track section 11 to realize the transportation of different types of cutting tools 7, such as double-edged hobs and multi-stage hobs.

[0061] Specifically, the support body 113 is also a strip structure, installed inside the track section 11 by fasteners, and the installation position of the support body 113 can be adjusted according to different types of cutting tools 7. A tool groove 13 for accommodating the cutting tool 7 is formed between the support body 113 and the base block 111. In this embodiment, two support bodies 113 are installed inside the track section 11, each forming a tool groove 13 with the base blocks 111 on both sides. The transport track 1 formed by the support bodies 113 can realize the transport of the double hobbing cutter.

[0062] According to one embodiment of the present invention, such as Figure 12 and Figure 13 As shown, flanges 114 are connected to both ends of the track section 11, and the flanges 114 on each track section 11 can be mated together and connected by fasteners.

[0063] Multiple track sections 11 can be quickly disassembled and installed via flanges 114 and fasteners, which facilitates the layout and real-time adjustment of the transport track 1.

[0064] Specifically, the flanges 114 at both ends of the track section 11 are connected to the track section 11 by welding. The flanges 114 are used to strengthen the structural strength of the track section 11 and realize the structural connection between the track sections 11. In this embodiment, the fastener is a bolt. The flange 114 has multiple bolt holes for the bolts to pass through. The track sections 11 are fastened together by bolts passing through the bolt holes on the mating flanges 114.

[0065] According to one embodiment of the present invention, such as Figure 12 and Figure 13 As shown, each track section 11 has multiple ribs 115 spaced apart on both sides along its length. These ribs 115 can enhance the structural strength of the track section 11.

[0066] In this invention, a shield body 4 is provided between the man cabin 3 and the earth chamber 5 of the tunnel boring machine, and the transport track 1 is fixedly connected to the bottom of the shield body 4 and the bottom of the man cabin 3 through a connecting structure.

[0067] In this embodiment, the transport track 1 is fixed inside the shield body 4 and the man cabin 3 by means of the connection structure on the shield body 4 and the man cabin 3. Other fixing methods can also be used. In other embodiments, the fixing method can be other forms such as fastener connection, but its reliability must be ensured.

[0068] According to one embodiment of the present invention, the tunnel boring machine cutter transport device can transport the cutter 7 under both atmospheric pressure and pressurized transport conditions, wherein:

[0069] Under normal pressure transportation conditions, the earth chamber 5, the shield body 4, and the personnel compartment 3 are all connected to the atmosphere;

[0070] Under pressurized transport conditions, the earthen chamber 5 is isolated from the atmosphere, and the pressure in the earthen chamber 5 is greater than the pressure of the atmosphere.

[0071] Specifically, under normal pressure transportation conditions, such as Figure 2 As shown, based on the structural form of the man-cabin 3 and the shield body 4, the shield machine cutter transport device of the present invention is first placed in the passage between the man-cabin 3 and the shield body 4. At this time, the shield machine cutter transport device extends out of the man-cabin 3 (the shield machine cutter transport device can penetrate the earth chamber 5, the shield body 4, and the man-cabin 3). Through the fixed lifting device 21 on the upper part of the man-cabin 3, the cutter 7 is hoisted to the shield machine cutter transport device located outside the man-cabin 3. Under pressurized transport conditions, such as... Figure 14 As shown, at this time, the earth chamber 5 is not connected to the atmosphere, and the pressure inside the earth chamber 5 is higher than the atmospheric pressure. The transportation of the cutter 7 requires that the earth chamber 5 is not connected to the atmosphere, that is, the man cabin 3 needs to be isolated from the earth chamber 5. First, the cutter 7 is transported to the man cabin 3 through the fixed lifting device 21. Then, the door of the man cabin 3 away from the earth chamber 5 is closed, and the man cabin 3 is pressurized. When the pressure of the man cabin 3 and the earth chamber 5 are the same and pressure balance is reached, the door that isolates the earth chamber 5 from the man cabin 3 is opened, and the shield machine cutter transport device is extended into the earth chamber 5. At this time, the cutter 7 can be lifted to the position of the cutterhead 6 where the cutter needs to be replaced through the first temporary lifting device 22 / second temporary lifting device 23.

[0072] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A shield machine cutter transport device, characterized in that, The utility model relates to a shield machine cutter conveying device, which comprises the following parts: a conveying track with a plurality of track segments connected detachably, the conveying track being arranged between a man cabin of the shield machine and a soil chamber behind a cutter head of the shield machine; a lifting device structure above the conveying track, the lifting device structure being used for conveying cutters on the conveying track and comprising a fixed lifting device arranged above the man cabin; the track segment comprises two base blocks symmetrically connected, and a receiving groove for accommodating the cutter is formed between opposite side walls of the two base blocks; the track segment further comprises a connecting plate connected between the two base blocks and constituting a groove bottom of the receiving groove; flanges are connected to two ends of the track segment, and the flanges on each track segment can be butted against each other and connected through fasteners; the man cabin of the shield machine and the soil chamber of the shield machine are provided with a shield body, and the conveying track is fixedly connected to a bottom of the shield body and a bottom of the man cabin through a connecting structure; the shield machine cutter conveying device can convey the cutters in a normal pressure conveying state and a pressure conveying state, wherein: in the normal pressure conveying state, the soil chamber, the shield body and the man cabin are in communication with the atmosphere, the conveying track formed by the plurality of track segments penetrates through the soil chamber, the shield body and the man cabin and extends to outside the man cabin, so that the fixed lifting device is used to hoist the cutters to the conveying track outside the man cabin and transfer the cutters to the soil chamber along the conveying track; in the pressure conveying state, the soil chamber is isolated from the atmosphere, the pressure of the soil chamber is greater than that of the atmosphere, the man cabin is isolated from the soil chamber, the man cabin is closed through the fixed lifting device after the cutters are conveyed to the man cabin, a door of the man cabin away from the soil chamber is closed, the man cabin is pressurized to the same pressure as the soil chamber to achieve pressure balance, a door isolating the soil chamber and the man cabin is opened, the conveying track is extended into the soil chamber through the track segment, and the cutters can be transferred from the man cabin to the soil chamber along the conveying track.

2. The TBM cutter transport device of claim 1, wherein, The plurality of track segments are arranged on the same straight line in the direction from the man cabin to the soil chamber, and the lifting device structure further comprises a first temporary lifting device arranged above one end of the conveying track close to the cutter head.

3. A TBM cutter transport device according to claim 1 or 2, characterised in that, The plurality of track segments are arranged at different height positions in the direction from the man cabin to the soil chamber, and the lifting device structure further comprises at least one second temporary lifting device arranged between two adjacent track segments.

4. The TBM cutter transport device of claim 1, wherein, The track segment further comprises a plurality of support bodies arranged at intervals, the two base blocks are located on two sides of the plurality of support bodies, and a cutter groove for accommodating the cutter is formed between adjacent two support bodies and between the support bodies and the base blocks.

5. The TBM cutter transport device of claim 1, wherein, A plurality of rib plates are arranged at intervals on two sides of each track segment in the length direction of the track segment.

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