A hole-in cutter head overturning system, overturning dismounting method and overturning mounting method

Abstract

The application discloses a hole-in cutter head overturning system, an overturning dismounting method and an overturning mounting method, and belongs to the technical field of shield machines, and comprises an overturning bracket, a moving bracket, a hinged base and a power cylinder control module, the back of the overturning bracket is provided with hinged lugs and overturning lugs, the moving bracket is provided with hinged lug seats matched with the hinged lugs on the top, the front end of the hinged base is provided with overturning lug seats, the overturning lugs and the overturning lugs are both provided with connecting pin holes, two groups of first fixed lug seats are arranged on the back of the overturning bracket at intervals, the moving bracket and the hinged base are both provided with second fixed lug seats, and the first fixed lug seats and the second fixed lug seats are detachably provided with overturning power cylinders, the overturning device is adopted to overturn and transfer as a whole, the cutter head can be integrally overturned and dismounted, large lifting equipment is not needed, safety risks are effectively avoided, different hole-in working conditions can be adapted to, efficient recovery and recycling of the cutter head are realized, and efficiency, adaptability and economy are taken into account.

Description

Technical Field

[0001] This invention relates to the field of tunnel boring machine technology, and in particular to an in-tunnel cutterhead tilting system, a tilting disassembly method, and a tilting installation method. Background Technology

[0002] The cutterhead of a tunnel boring machine (TBM) is the core component of the TBM tunneling system, responsible for the crucial function of cutting through soil and rock. During the final stages of TBM construction, the recovery of the cutterhead inside the tunnel has always been a challenging problem affecting both efficiency and safety. As a core component weighing tens of tons and with a complex structure, the rotation and transfer of the cutterhead must be completed within the narrow, enclosed space of the tunnel.

[0003] Currently, there are two main solutions: The segmented dismantling inside the tunnel relies on manual operation, using simple equipment such as hand-operated hoists and small electric hoists to disassemble the cutterhead into several small pieces and transport them one by one. This method is limited by the confined space inside the tunnel, restricting the workers' operating range. Not only is the construction efficiency extremely low, but the lack of precision in manual operation also increases the risk of accidents such as falls and collisions during the transport of heavy components. Furthermore, segmented dismantling requires cutting and damaging the cutterhead's connecting structure, which greatly increases the difficulty of subsequent repair and reuse. Some damaged components are even rendered unusable, resulting in serious waste of resources and economic losses.

[0004] The overall hoisting and dismantling relies on large hoisting equipment such as 100-ton crawler cranes to rotate the cutterhead. However, the limitations of such large hoisting equipment are more pronounced in tunnel environments: on the one hand, the narrow tunnel space makes it difficult for large cranes to enter and position themselves. Even if they are managed to operate, it is necessary to repeatedly coordinate the crane's position, cutterhead angle adjustment, and balance control. Slight deviations can lead to problems such as one-sided friction and horizontal displacement of the cutterhead, which not only aggravates the wear of the hoisting wheel assembly but may also cause the crane to overturn due to improper support. On the other hand, the complex operation process results in low rotation efficiency, seriously delaying the overall construction progress. Furthermore, the stability during hoisting is difficult to guarantee, and the risk of equipment collision damage and personnel mechanical injury remains high, indirectly increasing construction costs.

[0005] The above-mentioned technical solutions are generally inefficient. Therefore, a safe and rapid cutterhead tilting device inside the tunnel is an indispensable key piece of equipment in shield tunneling and an important guarantee for modern shield tunneling. Summary of the Invention

[0006] In order to overcome the defects of the existing technology, the present invention provides an in-tunnel cutterhead flipping system, a flipping disassembly method, and a flipping installation method.

[0007] The technical solution adopted by this invention to solve its technical problem is: an in-tunnel cutterhead tilting system, comprising: A flip bracket is used to connect to and support the cutter head, and has hinged lugs and flip lugs on the back. The movable bracket is used to support and move the flip bracket. It has a hinged lug on the top that mates with the hinged lug. When the hinged lug is aligned with the hinged lug, a pin can be inserted to hinge the flip bracket and the movable bracket together. The hinged base is used to support the flip bracket. The front end is provided with a flip ear seat. Both the flip ear and the flip ear are provided with connecting pin holes. When the flip ear and the flip ear seat are aligned, the pin can be inserted to hinge the flip bracket and the hinged base together. Two sets of first fixed lugs are spaced apart on the back of the flip bracket, and second fixed lugs are provided on both the movable bracket and the hinge base. A flip power cylinder is detachably installed between the first fixed lugs and the second fixed lugs. The flip power cylinder is used to drive the flip bracket to flip. A power cylinder control module for controlling a tilting power cylinder includes a pump station and a control unit for controlling the pump station, wherein the pump station is connected to the tilting power cylinder via a pipeline.

[0008] Preferably, the hinged lugs are provided in two sets at intervals, with the hinged lugs and the first fixed lugs being alternately and at intervals. The hinged base is provided with a track into which the movable bracket can slide, and the movable bracket is slidably connected to the track via wheels.

[0009] Preferably, the tunnel cutterhead tilting system also includes a traveling bracket, which is detachably connected to the front end of the movable bracket, and the traveling bracket is slidably connected to the track via traveling wheels.

[0010] Preferably, a support bracket is provided between the bottom of both sides of the movable bracket and the hinged base; The movable bracket is provided with detachable side supports on both sides, and the side supports abut against or connect to the tunnel sidewall. The bottom of the hinged base is provided with an arc-shaped rib that matches the bottom of the tunnel; The front of the flip bracket is provided with multiple sets of positioning holes that mate with the connection holes of the cutter head, and the outer edge of the flip bracket is provided with a positioning protective frame that mates with the back of the cutter head. The connecting hole on the flip ear piece is a strip-shaped hole.

[0011] A method for disassembling and reversing a cutterhead inside a tunnel, based on the above-mentioned cutterhead reversing system inside a tunnel, includes: Install the flip-up bracket onto the movable bracket; Install the hinged base in the working area inside the shield body; Transfer the mobile bracket and the tilting bracket to the working area inside the shield; By inserting a pin, the hinge point between the hinge lug on the side of the flip bracket near the cutter head and the hinge lug on the side of the movable bracket near the cutter head is used as the flip point. The flip bracket is flipped towards the cutter head until the flip lug and the flip lug are opposite each other. The pin is then inserted to make the hinge base and the flip bracket hinge together. Remove the pin between the flip bracket and the movable bracket, flip the flip bracket towards the cutter head until the flip bracket and the cutter head are facing each other, and then fix the cutter head and the flip bracket. Install a tilting power cylinder; By controlling the action of the tilting power cylinder, the cutter head is tilted towards the moving bracket until the hinge lug on the side of the tilting bracket closest to the cutter head is opposite to the hinge lug on the side of the moving bracket closest to the cutter head. The pin is then inserted to make the moving bracket and the tilting bracket hinge together. Continue to rotate the rotating bracket until it rests on the moving bracket, then remove the rotating power cylinder; The cutterhead is moved out of the shield body by moving the bracket and flipping the bracket; Remove the hinged base.

[0012] Preferably, mounting the flip-up bracket on the movable bracket includes: The flip bracket is installed on the mobile bracket by aligning the two sets of hinged lugs of the flip bracket with the two sets of hinged lugs of the mobile bracket and inserting pins into each of them. The installation of the hinged base in the working area inside the shield body includes: Excavate an installation groove in the working area inside the shield, install the hinge base in the installation groove, and make the upper surface of the hinge base flush with the bottom surface of the working area inside the shield. The process of transferring the movable bracket and the flipping bracket to the working area inside the shield includes: A track is laid on the articulated base for the movable bracket to slide into. The movable bracket is connected to the track by a traveling wheel. By pushing the movable bracket, the movable bracket and the flipping bracket are transferred to the working area inside the shield. The step of inserting a pin to hinge the hinge point between the hinged lug on the side of the flip bracket near the cutter head and the hinged lug seat on the side of the movable bracket near the cutter head, using this as the flip point, flips the flip bracket towards the cutter head until the flipped lug and the flipped lug seat are opposite each other, and then inserts the pin to hinge the hinged base and the flip bracket together, including: Remove the pins from the hinge lugs on the side of the flip bracket away from the cutter head and the hinge lugs on the side of the movable bracket away from the cutter head. Use the hinge point between the hinge lugs on the side of the flip bracket close to the cutter head and the hinge lugs on the side of the movable bracket close to the cutter head as the flip point. Flip the flip bracket towards the cutter head until the flip lugs and the flip lugs are facing each other. Insert the pins to make the hinge base and the flip bracket hinge together. The process involves controlling the tilting power cylinder to tilt the cutter head towards the moving bracket until the hinge lug on the tilting bracket near the cutter head aligns with the hinge lug on the moving bracket near the cutter head. A pin is then inserted to hinge the moving bracket and the tilting bracket together. A jack is installed under the tilting bracket. Guided by the strip holes on the tilting lugs, and in conjunction with the tilting power cylinder, the cutterhead and the tilting bracket are lowered a certain distance, leaving space for the cutterhead to tilt inside the shield. Then, by controlling the action of the tilting power cylinder, the cutterhead is tilted towards the moving bracket until the hinge lugs on the side of the tilting bracket closest to the cutterhead are aligned with the hinge lugs on the side of the moving bracket closest to the cutterhead. A pin is inserted to hinge the moving bracket and the tilting bracket together. The tilting power cylinder between the tilting bracket and the moving bracket is then removed. The process of continuing to rotate the rotating bracket, so that the rotating bracket is supported on the movable bracket, and removing the rotating power cylinder includes: Continue to rotate the rotating bracket until the hinge lug on the side of the rotating bracket away from the cutter head is aligned with the hinge lug on the side of the moving bracket away from the cutter head. Insert the pin so that the rotating bracket is supported on the moving bracket. Remove the rotating power cylinder between the rotating bracket and the hinge base. The removal of the hinged base includes: Remove the track and the hinged base.

[0013] Preferably, the transfer of the movable bracket and the flipping bracket to the working area inside the shield body further includes: After the mobile bracket and the tilting bracket are transferred to the working area inside the shield, support brackets are set up between the bottom of both sides of the mobile bracket and the hinged base. The installation of the tilting power cylinder also includes: Side supports are installed on both sides of the movable bracket, so that the other end of the side support abuts or connects to the tunnel sidewall; The method of transferring the cutterhead outside the shield body via a moving bracket and a flipping bracket includes: The traveling bracket is connected to the side of the movable bracket near the hinged base. The traveling bracket is connected to the track by the traveling wheels. The support bracket and side support are removed. The cutterhead is transferred out of the shield body by the traveling bracket, the movable bracket and the flipping bracket.

[0014] A method for installing a cutterhead tilting mechanism inside a tunnel, based on the above-mentioned cutterhead tilting system inside a tunnel, includes: Install the flip-up bracket onto the movable bracket; Secure the cutter head to the tilting bracket; Install the hinged base in the working area inside the shield body; Transfer the cutterhead, moving bracket, and tilting bracket to the working area inside the shield; Install the flipping power cylinder between the flipping bracket and the hinge base. By inserting a pin, the hinge point between the hinge lug on the side of the flipping bracket near the installation position and the hinge lug on the side of the movable bracket near the installation position is taken as the flipping point. By controlling the action of the flipping power cylinder, the flipping bracket is flipped towards the installation position until the flipping lug and the flipping lug are opposite each other. Insert the pin to make the hinge base and the flipping bracket hinge together. Install the tilting power cylinder between the tilting bracket and the moving bracket, remove the pin between the tilting bracket and the moving bracket, tilt the tilting bracket towards the installation position until the tilting bracket is opposite to the installation position, and fix the cutter head in the installation position. Separate the tilting bracket from the cutter head; By controlling the action of the tilting power cylinder, the tilting bracket is tilted towards the moving bracket until the hinge lug on the side of the tilting bracket near the cutter head is opposite to the hinge lug on the side of the moving bracket near the cutter head. The pin is then inserted to make the moving bracket and the tilting bracket hinge together. Remove the flipping power cylinder between the flipping bracket and the moving bracket, continue to flip the flipping bracket so that the flipping bracket is supported on the moving bracket, and remove the flipping power cylinder between the flipping bracket and the hinged base. Transfer the movable bracket and the flipping bracket outside the shield body; Remove the hinged base.

[0015] Preferably, mounting the flip-up bracket on the movable bracket includes: The flip bracket is installed on the mobile bracket by aligning the two sets of hinged lugs of the flip bracket with the two sets of hinged lugs of the mobile bracket and inserting pins into each of them. The installation of the hinged base in the working area inside the shield body includes: Excavate an installation groove in the working area inside the shield, install the hinge base in the installation groove, and make the upper surface of the hinge base flush with the bottom surface of the working area inside the shield. The process of transferring the cutterhead, moving bracket, and tilting bracket to the working area inside the shield includes: A track is laid on the articulated base for the movable bracket to slide into. The movable bracket is connected to the traveling bracket on the side near the articulated base. The traveling bracket and the movable bracket are connected to the track by traveling wheels. By pushing the traveling bracket and the movable bracket, the cutter head, the movable bracket and the tilting bracket are transferred to the working area inside the shield. The process of installing the tilting power cylinder between the tilting bracket and the moving bracket, removing the pin between the tilting bracket and the moving bracket, tilting the tilting bracket towards the installation position until the tilting bracket is opposite the installation position, and fixing the cutter head in the installation position includes: Install the tilting power cylinder between the tilting bracket and the moving bracket, remove the pin between the tilting bracket and the moving bracket, tilt the tilting bracket towards the installation position until the tilting bracket is in an upright position, support the jack under the tilting bracket, and with the guidance of the strip hole on the tilting lug and the coordination of the tilting power cylinder, raise the cutter head and the tilting bracket a certain distance until the tilting bracket is opposite the installation position, and fix the cutter head in the installation position; The process of removing the tilting power cylinder between the tilting bracket and the movable bracket, continuing to tilt the tilting bracket so that it rests on the movable bracket, and removing the tilting power cylinder between the tilting bracket and the hinged base includes: Remove the flipping power cylinder between the flipping bracket and the moving bracket, continue to flip the flipping bracket, and wait until the hinge lug on the side of the flipping bracket away from the cutter head is aligned with the hinge lug on the side of the moving bracket away from the cutter head. Insert the pin so that the flipping bracket is supported on the moving bracket. Remove the flipping power cylinder between the flipping bracket and the hinge base. The removal of the hinged base includes: Remove the track and the hinged base.

[0016] Preferably, the transfer of the cutterhead, moving bracket, and tilting bracket to the working area inside the shield body further includes: After the cutterhead, moving bracket and tilting bracket are transferred to the working area inside the shield, support brackets are set up between the bottom of both sides of the moving bracket and the hinged base, and side supports are installed on both sides of the moving bracket so that the other end of the side support abuts or connects to the tunnel sidewall. The process of transferring the movable bracket and the flipping bracket outside the shield body includes: Remove the support brackets and side supports, and move the movable brackets and flipping brackets outside the shield body.

[0017] The beneficial effects of this invention are: compared with the prior art, by adopting a flipping device that allows the cutterhead to be flipped and disassembled as a whole without relying on large hoisting equipment, effectively avoiding safety risks, adapting to different working conditions inside the tunnel, avoiding damage to the cutterhead, and achieving efficient recycling and reuse of the cutterhead, taking into account efficiency, adaptability and economy. Attached Figure Description

[0018] Figure 1 The three-dimensional flip bracket in the embodiment of the present invention Figure 1 ; Figure 2 The three-dimensional flip bracket in the embodiment of the present invention Figure 2 ; Figure 3 This is a perspective view of the movable bracket in an embodiment of the present invention; Figure 4 The three-dimensional hinged base in the embodiment of the present invention Figure 1 ; Figure 5 The three-dimensional hinged base in the embodiment of the present invention Figure 2 ; Figure 6 This is an assembly diagram of the flip-up bracket, movable bracket, hinged base, and traveling bracket in an embodiment of the present invention; Figure 7 This is an assembly diagram of the movable bracket and the hinged base in an embodiment of the present invention; Figure 8 This is an assembly diagram of the movable bracket, hinged base, and support bracket in an embodiment of the present invention; Figure 9 This is an assembly diagram of the flip-up bracket, the movable bracket, and the traveling bracket in an embodiment of the present invention; Figure 10 This is a side view of the assembled state of the flip bracket, movable bracket, and hinged base in an embodiment of the present invention. Figure 1 (The flip bracket is flipped so that the flip ear plate and the flip ear base are opposite each other). Figure 11 This is a perspective view of the assembly state of the flip bracket, the movable bracket, and the hinged base in an embodiment of the present invention (the flip bracket is flipped to a vertical state). Figure 12 This is a side view of the assembled state of the flip bracket, movable bracket, and hinged base in an embodiment of the present invention. Figure 2 (The flip-up tray is in a flat position); Figure 13 This is a schematic diagram of the cutter head disassembly method in an embodiment of the present invention. Figure 1 (Install the hinged base and lay the track); Figure 14 This is a schematic diagram of the cutter head disassembly method in an embodiment of the present invention. Figure 2 (Moving and flipping the trays to the work area); Figure 15 This is a schematic diagram of the cutter head disassembly method in an embodiment of the present invention. Figure 3 (The flip bracket is hinged to the hinged base). Figure 16 This is a schematic diagram of the cutter head disassembly method in an embodiment of the present invention. Figure 4 (Install the tilting power cylinder, and fix the cutter head to the tilting bracket). Figure 17 This is a schematic diagram of the cutter head disassembly method in an embodiment of the present invention. Figure 5 (The cutter head and the tilting bracket sink a certain distance). Figure 18 This is a schematic diagram of the cutter head disassembly method in an embodiment of the present invention. Figure 6 (The flip-up bracket and the movable bracket are hinged together.) Figure 19 This is a schematic diagram of the cutter head disassembly method in an embodiment of the present invention. Figure 7(The flip-up bracket separates from the hinged base and rests on the movable bracket.) Figure 20 This is a schematic diagram of the cutter head disassembly method in an embodiment of the present invention. Figure 8 (Connecting walking bracket); Figure 21 This is a schematic diagram of the cutter head disassembly method in an embodiment of the present invention. Figure 9 (Remove the tilting power cylinder and move the cutterhead outside the shield body). Figure 22 This is a schematic diagram of the cutter head installation method in an embodiment of the present invention. Figure 1 (Install the hinged base, lay the track, and transfer the cutter head to the work area). Figure 23 This is a schematic diagram of the cutter head installation method in an embodiment of the present invention. Figure 2 (Install the tilting power cylinder); Figure 24 This is a schematic diagram of the cutter head installation method in an embodiment of the present invention. Figure 3 (Remove the walking bracket); Figure 25 This is a schematic diagram of the cutter head installation method in an embodiment of the present invention. Figure 4 (The flip bracket is hinged to the hinged base). Figure 26 This is a schematic diagram of the cutter head installation method in an embodiment of the present invention. Figure 5 (The flip bracket flips to the upright position). Figure 27 This is a schematic diagram of the cutter head installation method in an embodiment of the present invention. Figure 6 (The cutter head rises a certain distance and is then fixed.) Figure 28 This is a schematic diagram of the cutter head installation method in an embodiment of the present invention. Figure 7 (The flip bracket flips back to its original position). Figure 29 This is a schematic diagram of the cutter head installation method in an embodiment of the present invention. Figure 8 (The flip-up bracket separates from the hinged base and rests on the movable bracket.) Figure 30 This is a schematic diagram of the cutter head installation method in an embodiment of the present invention. Figure 9 (Transfer the movable bracket and the flipping bracket to the outside of the shield).

[0019] In the figure, 10 is the flip bracket; 11 is the hinged ear; 12 is the flip ear; 13 is the strip hole; 14 is the first fixed ear seat; 15 is the positioning and protection frame; 20 is the movable bracket; 21 is the hinged ear seat; 22 is the side support; 30 is the hinged base; 31 is the flip ear seat; 32 is the arc-shaped rib; 33 is the track; 41 is the second fixed ear seat; 42 is the flip power cylinder; 50 is the traveling bracket; 60 is the support bracket; and 70 is the cutter head. Detailed Implementation

[0020] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding the present invention, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0021] As attached Figure 1-12 As shown, the present invention provides an in-hole cutterhead tilting system, comprising: A flip bracket 10 is used to connect to and support the cutter head 70, and has a hinged lug 11 and a flip lug 12 on the back. The movable bracket 20 is used to support and move the flip bracket 10. It is provided with a hinge ear seat 21 on the top, which cooperates with the hinge ear 11. When the hinge ear 11 and the hinge ear seat 21 are aligned, a pin can be inserted to hinge the flip bracket 10 and the movable bracket 20 together. The hinge base 30 is used to support the flip bracket 10. The front end is provided with a flip ear seat 31. Both the flip ear plate 12 and the flip ear are provided with connecting pin holes. When the flip ear plate 12 and the flip ear seat 31 are aligned, a pin can be inserted to hinge the flip bracket 10 and the hinge base 30 together. Two sets of first fixed lugs 14 are spaced apart on the back of the flip bracket 10. The movable bracket 20 and the hinge base 30 are both provided with second fixed lugs 41. A flip power cylinder 42 is detachably installed between the first fixed lugs 14 and the second fixed lugs 41. The flip power cylinder 42 is used to drive the flip bracket 10 to flip. The power cylinder control module, used to control the tilting power cylinder 42, includes a pump station and a control unit for controlling the pump station, which is connected to the tilting power cylinder 42 via a pipeline.

[0022] Furthermore, two sets of hinged lugs 11 are spaced apart along the front-rear direction of the movable bracket 20, and the hinged lugs 11 and the first fixed lug 14 are alternately spaced apart. To facilitate the transfer of the movable bracket 20, a track 33 is laid on the hinged base 30 into which the movable bracket 20 can slide, and the movable bracket 20 is slidably connected to the track 33 via wheels.

[0023] Furthermore, the in-tunnel cutterhead tilting system also includes a traveling bracket 50, which is detachably connected to the front end of the movable bracket 20. The traveling bracket 50 is slidably connected to the track 33 via traveling wheels. When the movable bracket 20 moves the cutterhead 70, the traveling bracket 50 balances the movable bracket 20, preventing the movable bracket 20 from being affected by the cutterhead 70 and causing it to tilt due to instability of the center of gravity.

[0024] Furthermore, support brackets 60 are provided between the bottom of both sides of the movable bracket 20 and the hinged base 30. When the movable bracket 20 supports the cutter head 70 and rotates, the stability of the movable bracket 20 is improved by the support brackets 60. The movable bracket 20 is provided with detachable side supports 22 on both sides. The side supports 22 abut against or connect to the tunnel sidewall, further improving the stability of the movable bracket 20. The bottom of the hinge base 30 is provided with an arc-shaped rib 32 that matches the bottom of the tunnel, making the hinge base 30 more stable. The front of the flip bracket 10 is provided with multiple sets of positioning holes that mate with the connection holes of the cutter head 70. The outer edge of the flip bracket 10 is provided with a positioning protection frame 15 that mates with the back of the cutter head 70. The back of the cutter head 70 is protected by the positioning protection frame 15. The connecting hole on the flip ear piece 12 is a strip hole 13.

[0025] As attached Figure 13-21 As shown, a method for disassembling and reversing a cutterhead inside a tunnel, based on the above-mentioned cutterhead reversing system, includes: By aligning the two sets of hinged lugs 11 of the flip bracket 10 with the two sets of hinged lugs 21 of the movable bracket 20, and inserting pins respectively, the flip bracket 10 is installed on the movable bracket 20. A mounting groove is dug in the working area inside the shield, and the hinge base 30 is installed in the mounting groove, with the upper surface of the hinge base 30 flush with the bottom surface of the working area inside the shield. A track 33 is laid on the hinged base 30, into which the movable bracket 20 can slide. The movable bracket 20 is slidably connected to the track 33 via a traveling wheel. By pushing the movable bracket 20, the movable bracket 20 and the flipping bracket 10 are transferred to the working area inside the shield. Support brackets 60 are installed between the bottom of both sides of the movable bracket 20 and the hinged base 30. Remove the pins from the hinge lug 11 on the side of the flip bracket 10 away from the cutter head 70 and the hinge lug 21 on the side of the movable bracket 20 away from the cutter head 70. Take the hinge point of the hinge lug 11 on the side of the flip bracket 10 close to the cutter head 70 and the hinge lug 21 on the side of the movable bracket 20 close to the cutter head 70 as the flip point. Flip the flip bracket 10 towards the cutter head 70 until the flip lug 12 and the flip lug 31 are opposite each other. Insert the pins to make the hinge base 30 and the flip bracket 10 hinge together. Remove the pin between the flip bracket 10 and the movable bracket 20, flip the flip bracket 10 towards the cutter head 70 until the flip bracket 10 and the cutter head 70 are opposite each other, and fix the cutter head 70 and the flip bracket 10. Install the tilting power cylinder 42, and install side supports 22 on both sides of the movable bracket 20 so that the other end of the side support 22 abuts or connects to the tunnel sidewall. A jack is installed under the tilting bracket 10. Guided by the strip hole 13 on the tilting lug 12, and in conjunction with the tilting power cylinder 42, the cutter head 70 and the tilting bracket 10 are lowered a certain distance, leaving space for the cutter head 70 to tilt inside the shield. Then, by controlling the action of the tilting power cylinder 42, the cutter head 70 is tilted towards the moving bracket 20 until the hinge lug 11 on the side of the tilting bracket 10 near the cutter head 70 is opposite to the hinge lug 21 on the side of the moving bracket 20 near the cutter head 70. A pin is inserted to make the moving bracket 20 and the tilting bracket 10 hinged to each other. The tilting power cylinder 42 between the tilting bracket 10 and the moving bracket 20 is then removed. Continue to rotate the rotating bracket 10 until the hinge lug 11 on the side of the rotating bracket 10 away from the cutter head 70 is opposite to the hinge lug 21 on the side of the movable bracket 20 away from the cutter head 70. Insert the pin so that the rotating bracket 10 is supported on the movable bracket 20. Remove the rotating power cylinder 42 between the rotating bracket 10 and the hinge base 30. The mobile bracket 20 is connected to the walking bracket 50 on the side near the hinged base 30. The walking bracket 50 is slidably connected to the track 33 through the walking wheels. The support bracket 60 and the side support 22 are removed. The cutter head 70 is transferred out of the shield body through the walking bracket 50, the mobile bracket 20 and the flipping bracket 10. Remove track 33 and hinged base 30.

[0026] Compared with existing technologies, by adopting a flipping device that allows the cutterhead 70 to be flipped and disassembled as a whole without relying on large hoisting equipment, the safety risks are effectively avoided. It can adapt to different working conditions inside the tunnel, avoid damage to the cutterhead 70, and achieve efficient recycling and reuse of the cutterhead 70, taking into account efficiency, adaptability and economy.

[0027] As attached Figure 22-30 As shown, in order to adapt to the installation requirements of the cutterhead 70 in special tunnel working conditions, a method for rotating and installing the cutterhead in tunnel is also provided. Based on the above-mentioned cutterhead rotation system in tunnel, it includes: By aligning the two sets of hinged lugs 11 of the flip bracket 10 with the two sets of hinged lugs 21 of the movable bracket 20, and inserting pins respectively, the flip bracket 10 is installed on the movable bracket 20. Fix the cutter head 70 to the tilting bracket 10; A mounting groove is dug in the working area inside the shield, and the hinge base 30 is installed in the mounting groove, with the upper surface of the hinge base 30 flush with the bottom surface of the working area inside the shield. A track 33 is laid on the articulated base 30, into which the movable bracket 20 can slide. The traveling bracket 50 is connected to the side of the movable bracket 20 near the articulated base 30. The traveling bracket 50 and the movable bracket 20 are slidably connected to the track 33 through traveling wheels. By pushing the traveling bracket 50 and the movable bracket 20, the cutterhead 70, the movable bracket 20 and the tilting bracket 10 are transferred to the working area inside the shield. Support brackets 60 are installed between the bottom of both sides of the movable bracket 20 and the articulated base 30. Side supports 22 are installed on both sides of the movable bracket 20 so that the other end of the side supports 22 abuts or connects to the tunnel sidewall. Install the flipping power cylinder 42 between the flipping bracket 10 and the hinge base 30. By inserting a pin, the hinge point between the hinge lug 11 of the flipping bracket 10 near the installation position and the hinge lug 21 of the movable bracket 20 near the installation position is used as the flipping point. By controlling the action of the flipping power cylinder 42, the flipping bracket 10 is flipped towards the installation position until the flipping lug 12 and the flipping lug 31 are opposite each other. Insert the pin to make the hinge base 30 and the flipping bracket 10 hinge together. Install the tilting power cylinder 42 between the tilting bracket 10 and the movable bracket 20, remove the pin between the tilting bracket 10 and the movable bracket 20, tilt the tilting bracket 10 towards the installation position until the tilting bracket 10 is in an upright state, support the jack under the tilting bracket 10, and guide the tilting lug 12 with the help of the tilting power cylinder 42 to raise the cutter head 70 and the tilting bracket 10 a certain distance until the tilting bracket 10 is opposite to the installation position, and fix the cutter head 70 in the installation position; Separate the flip bracket 10 from the cutter head 70; By controlling the operation of the tilting power cylinder 42, the tilting bracket 10 is tilted towards the moving bracket 20 until the hinge lug 11 of the tilting bracket 10 near the cutter head 70 is opposite to the hinge lug 21 of the moving bracket 20 near the cutter head 70. The pin is inserted to make the moving bracket 20 and the tilting bracket 10 hinge together. Remove the flipping power cylinder 42 between the flipping bracket 10 and the movable bracket 20, continue to flip the flipping bracket 10, and wait until the hinge lug 11 on the side of the flipping bracket 10 away from the cutter head 70 is opposite to the hinge lug 21 on the side of the movable bracket 20 away from the cutter head 70. Insert the pin so that the flipping bracket 10 is supported on the movable bracket 20. Remove the flipping power cylinder 42 between the flipping bracket 10 and the hinge base 30. Remove the support bracket 60 and the side support 22, and move the movable bracket 20 and the flipping bracket 10 out of the shield body; Remove track 33 and hinged base 30.

[0028] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and these variations still fall within the protection scope of the present invention.

Claims

1. A tunnel cutterhead tilting system, characterized in that, include: A flip bracket (10) is used to connect and support the cutter head (70), and has a hinged lug (11) and a flip lug (12) on the back. The movable bracket (20) is used to support and move the flip bracket (10). It is provided with a hinged lug (21) on the top to cooperate with the hinged lug (11). When the hinged lug (11) and the hinged lug (21) are aligned, they can be hinged together by inserting a pin. The hinged base (30) is used to support the flip bracket (10). The front end is provided with a flip ear seat (31). Both the flip ear piece (12) and the flip ear are provided with connecting pin holes. When the flip ear piece (12) and the flip ear seat (31) are aligned, they can be inserted and hinged together. The flip bracket (10) has two sets of first fixed ear seats (14) spaced apart on its back side. The movable bracket (20) and the hinge base (30) are both provided with second fixed ear seats (41). A flip power cylinder (42) is detachably installed between the first fixed ear seats (14) and the second fixed ear seats (41). The flip power cylinder (42) is used to drive the flip bracket (10) to flip. The power cylinder control module, used to control the tilting power cylinder (42), includes a pump station and a control unit for controlling the pump station, which is connected to the tilting power cylinder (42) via a pipeline.

2. The tunnel cutterhead tilting system according to claim 1, characterized in that, The hinged lugs (11) are arranged in two sets at intervals, and the hinged lugs (11) and the first fixed lugs (14) are arranged alternately at intervals; The hinged base (30) is provided with a track (33) into which the movable bracket (20) can slide. The movable bracket (20) is slidably connected to the track (33) via wheels.

3. The tunnel cutterhead tilting system according to claim 1, characterized in that, It also includes a walking bracket (50), which is detachably connected to the front end of the movable bracket (20), and the walking bracket (50) is slidably connected to the track (33) via walking wheels.

4. The tunnel cutterhead tilting system according to claim 1, characterized in that, The movable bracket (20) is provided with support brackets (60) between the bottom of both sides and the hinged base (30). The movable bracket (20) is provided with detachable side supports (22) on both sides, and the side supports (22) abut against or connect to the tunnel sidewall; The hinge base (30) has an arc-shaped rib (32) at the bottom that matches the bottom of the tunnel. The flip bracket (10) has multiple sets of positioning holes on the front that mate with the connection holes of the cutter head (70), and a positioning protection frame (15) is provided on the outer edge of the flip bracket (10) that mates with the back of the cutter head (70). The connecting hole on the flip ear piece (12) is a strip hole (13).

5. A method for disassembling and flipping a cutterhead inside a tunnel, characterized in that, The tunnel cutterhead tilting system according to any one of claims 1 to 4 includes: Install the flip bracket (10) onto the movable bracket (20); Install the hinged base (30) in the working area inside the shield body; Transfer the movable bracket (20) and the flipping bracket (10) to the working area inside the shield; By inserting a pin, the hinge point of the hinge lug (11) of the flip bracket (10) near the cutter head (70) and the hinge lug (21) of the movable bracket (20) near the cutter head (70) is used as the flip point. The flip bracket (10) is flipped towards the cutter head (70) until the flip lug (12) and the flip lug (31) are opposite each other. The pin is then inserted to make the hinge base (30) and the flip bracket (10) hinge together. Remove the pin between the flip bracket (10) and the movable bracket (20), flip the flip bracket (10) towards the cutter head (70) until the flip bracket (10) and the cutter head (70) are opposite each other, and fix the cutter head (70) and the flip bracket (10); Install the tilting power cylinder (42); By controlling the action of the flipping power cylinder (42), the cutter head (70) is flipped towards the moving bracket (20) until the hinge lug (11) of the flipping bracket (10) near the cutter head (70) is opposite to the hinge lug (21) of the moving bracket (20) near the cutter head (70). The pin is inserted to make the moving bracket (20) and the flipping bracket (10) hinge together. Continue to rotate the rotating bracket (10) so that the rotating bracket (10) is supported on the moving bracket (20), and remove the rotating power cylinder (42). The cutterhead (70) is moved out of the shield body by moving the bracket (20) and flipping the bracket (10); Remove the hinged base (30).

6. The method for disassembling and flipping the cutterhead inside the tunnel according to claim 5, characterized in that, The mounting of the flip-up bracket (10) on the movable bracket (20) includes: By aligning the two sets of hinged lugs (11) of the flip bracket (10) with the two sets of hinged lugs (21) of the movable bracket (20) and inserting pins respectively, the flip bracket (10) is installed on the movable bracket (20); The installation of the hinged base (30) in the working area inside the shield body includes; A mounting groove is dug in the working area inside the shield, and the hinge base (30) is installed in the mounting groove, with the upper surface of the hinge base (30) flush with the bottom surface of the working area inside the shield. The transfer of the movable bracket (20) and the flipping bracket (10) to the working area inside the shield body includes: A track (33) is laid on the hinged base (30) for the movable bracket (20) to slide into. The movable bracket (20) is slidably connected to the track (33) by the walking wheels. By pushing the movable bracket (20), the movable bracket (20) and the flipping bracket (10) are transferred to the working area inside the shield. The method of inserting a pin to hinge the hinge point between the hinged lug (11) of the flip bracket (10) near the cutter head (70) and the hinged lug (21) of the movable bracket (20) near the cutter head (70) as the flip point, flipping the flip bracket (10) towards the cutter head (70) until the flipped lug (12) and the flipped lug (31) are opposite each other, inserting a pin to hinge the hinged base (30) and the flip bracket (10) together, including: Remove the pins from the hinge lugs (11) on the side of the flip bracket (10) away from the cutter head (70) and the hinge lugs (21) on the side of the movable bracket (20) away from the cutter head (70). Take the hinge point of the hinge lugs (11) on the side of the flip bracket (10) close to the cutter head (70) and the hinge lugs (21) on the side of the movable bracket (20) close to the cutter head (70) as the flip point. Flip the flip bracket (10) towards the cutter head (70) until the flip lugs (12) and the flip lugs (31) are opposite each other. Insert the pins to make the hinge base (30) and the flip bracket (10) hinge together. The process of controlling the operation of the tilting power cylinder (42) to tilt the cutter head (70) towards the moving bracket (20) until the hinge lug (11) on the side of the tilting bracket (10) near the cutter head (70) is opposite to the hinge lug (21) on the side of the moving bracket (20) near the cutter head (70), inserting a pin to hinge the moving bracket (20) and the tilting bracket (10) together, includes: A jack is installed under the flipping bracket (10). Guided by the strip hole (13) on the flipping lug (12), and in conjunction with the flipping power cylinder (42), the cutter head (70) and the flipping bracket (10) are lowered a certain distance, leaving space for the cutter head (70) to flip inside the shield. Then, by controlling the action of the flipping power cylinder (42), the cutter head (70) is flipped towards the moving bracket (20) until the hinge lug (11) on the side of the flipping bracket (10) close to the cutter head (70) is opposite to the hinge lug (21) on the side of the moving bracket (20) close to the cutter head (70). A pin is inserted to make the moving bracket (20) and the flipping bracket (10) hinged to each other. The flipping power cylinder (42) between the flipping bracket (10) and the moving bracket (20) is removed. The process of continuing to rotate the rotating bracket (10) so that the rotating bracket (10) is supported on the movable bracket (20) and removing the rotating power cylinder (42) includes: Continue to flip the flip bracket (10). When the hinge ear (11) on the side of the flip bracket (10) away from the cutter head (70) is opposite to the hinge ear seat (21) on the side of the movable bracket (20) away from the cutter head (70), insert the pin so that the flip bracket (10) is supported on the movable bracket (20). Remove the flip power cylinder (42) between the flip bracket (10) and the hinge base (30). The removal of the hinge base (30) includes: Remove the track (33) and the hinged base (30).

7. The method for disassembling and flipping the cutterhead inside the tunnel according to claim 6, characterized in that, The process of transferring the movable bracket (20) and the flipping bracket (10) to the working area inside the shield also includes: After the movable bracket (20) and the flipping bracket (10) are transferred to the working area inside the shield, a support bracket (60) is set up between the bottom of both sides of the movable bracket (20) and the hinged base (30). The installation of the tilting power cylinder (42) also includes: Side supports (22) are installed on both sides of the movable bracket (20) so that the other end of the side support (22) abuts or connects to the tunnel sidewall; The process of transferring the cutterhead (70) outside the shield body via the movable bracket (20) and the flipping bracket (10) includes: The walking bracket (50) is connected to the side of the movable bracket (20) near the hinge base (30). The walking bracket (50) is connected to the track (33) by the walking wheels. The support bracket (60) and the side support (22) are removed. The cutter head (70) is transferred out of the shield body by the walking bracket (50), the movable bracket (20) and the flipping bracket (10).

8. A method for rotating and installing a cutterhead inside a tunnel, characterized in that, The tunnel cutterhead tilting system according to any one of claims 1 to 4 includes: Install the flip bracket (10) onto the movable bracket (20); Fix the cutter head (70) to the flip bracket (10); Install the hinged base (30) in the working area inside the shield body; Transfer the cutterhead (70), the movable bracket (20), and the tilting bracket (10) to the working area inside the shield; Install the flipping power cylinder (42) between the flipping bracket (10) and the hinge base (30). By inserting a pin, the hinge point of the hinge ear (11) of the flipping bracket (10) near the installation position and the hinge ear seat (21) of the movable bracket (20) near the installation position is used as the flipping point. By controlling the action of the flipping power cylinder (42), the flipping bracket (10) is flipped towards the installation position until the flipping ear (12) and the flipping ear seat (31) are opposite each other. Insert the pin to make the hinge base (30) and the flipping bracket (10) hinge together. Install the flipping power cylinder (42) between the flipping bracket (10) and the moving bracket (20), remove the pin between the flipping bracket (10) and the moving bracket (20), flip the flipping bracket (10) towards the installation position until the flipping bracket (10) is opposite to the installation position, and fix the cutter head (70) on the installation position; Separate the flip bracket (10) from the cutter head (70); By controlling the action of the flipping power cylinder (42), the flipping bracket (10) is flipped towards the moving bracket (20) until the hinge lug (11) of the flipping bracket (10) near the cutter head (70) is opposite to the hinge lug (21) of the moving bracket (20) near the cutter head (70). The pin is inserted to make the moving bracket (20) and the flipping bracket (10) hinge together. Remove the flipping power cylinder (42) between the flipping bracket (10) and the movable bracket (20), continue to flip the flipping bracket (10) so that the flipping bracket (10) is supported on the movable bracket (20), and remove the flipping power cylinder (42) between the flipping bracket (10) and the hinged base (30). The movable bracket (20) and the flipping bracket (10) are moved out of the shield body; Remove the hinged base (30).

9. The method for rotating and installing the cutterhead inside a tunnel according to claim 8, characterized in that, The mounting of the flip-up bracket (10) on the movable bracket (20) includes: The flip bracket (10) is mounted on the mobile bracket (20) by aligning the two sets of hinged lugs (11) of the flip bracket (10) with the two sets of hinged lugs (21) of the mobile bracket (20) and inserting pins respectively. The installation of the hinged base (30) in the working area inside the shield body includes: A mounting groove is dug in the working area inside the shield, and the hinge base (30) is installed in the mounting groove, with the upper surface of the hinge base (30) flush with the bottom surface of the working area inside the shield. The process of transferring the cutterhead (70), the movable bracket (20), and the tilting bracket (10) to the working area inside the shield includes: A track (33) is laid on the articulated base (30) for the movable bracket (20) to slide into. The walking bracket (50) is connected to the side of the movable bracket (20) near the articulated base (30). The walking bracket (50) and the movable bracket (20) are connected to the track (33) by the walking wheels. By pushing the walking bracket (50) and the movable bracket (20), the cutter head (70), the movable bracket (20) and the tilting bracket (10) are transferred to the working area inside the shield body. The rotating power cylinder (42) between the mounting rotating bracket (10) and the movable bracket (20) is removed, the pin between the rotating bracket (10) and the movable bracket (20) is removed, the rotating bracket (10) is rotated towards the mounting position until the rotating bracket (10) is opposite to the mounting position, and the cutter head (70) is fixed in the mounting position, including: Install the flipping power cylinder (42) between the flipping bracket (10) and the moving bracket (20), remove the pin between the flipping bracket (10) and the moving bracket (20), flip the flipping bracket (10) towards the installation position until the flipping bracket (10) is in a vertical position, support the jack under the flipping bracket (10), guide it through the strip hole (13) on the flipping lug (12), and cooperate with the flipping power cylinder (42) to make the cutter head (70) and the flipping bracket (10) rise a certain distance until the flipping bracket (10) is opposite to the installation position, and fix the cutter head (70) in the installation position; The removal of the flipping power cylinder (42) between the flipping bracket (10) and the movable bracket (20), the continued flipping of the flipping bracket (10) so that the flipping bracket (10) is supported on the movable bracket (20), and the removal of the flipping power cylinder (42) between the flipping bracket (10) and the hinged base (30) include: Remove the flipping power cylinder (42) between the flipping bracket (10) and the movable bracket (20), continue to flip the flipping bracket (10), and wait until the hinge ear (11) on the side of the flipping bracket (10) away from the cutter head (70) is opposite to the hinge ear seat (21) on the side of the movable bracket (20) away from the cutter head (70), insert the pin so that the flipping bracket (10) is supported on the movable bracket (20), and remove the flipping power cylinder (42) between the flipping bracket (10) and the hinge base (30). The removal of the hinge base (30) includes: Remove the track (33) and the hinged base (30).

10. The method for inverting and installing the cutterhead inside a tunnel according to claim 9, characterized in that, The process of transferring the cutterhead (70), the movable bracket (20), and the tilting bracket (10) to the working area inside the shield also includes: After the cutterhead (70), the movable bracket (20) and the tilting bracket (10) are transferred to the working area inside the shield, a support bracket (60) is set between the bottom of both sides of the movable bracket (20) and the hinged base (30), and side supports (22) are installed on both sides of the movable bracket (20) so that the other end of the side support (22) abuts or connects to the tunnel sidewall. The process of transferring the movable bracket (20) and the flipping bracket (10) outside the shield body includes: Remove the support bracket (60) and side support (22), and move the movable bracket (20) and the flipping bracket (10) out of the shield body.

Images