A shield machine cutter cleaning structure

Abstract

The utility model relates to the technical fields of shield machine, especially to a shield machine cutterhead cleaning structure, which comprises a base, two mounting racks are fixedly connected to the base, a lifting plate is slidably connected to the two mounting racks through a lifting mechanism, a flushing mechanism is installed on the lifting plate, the flushing mechanism comprises a support frame, the support frame is fixedly connected to the lifting plate, a high-pressure water pipe is fixedly connected to the support frame, a plurality of high-pressure nozzles are fixedly connected to the high-pressure water pipe, a high-pressure water pump is also installed on the lifting plate, a water inlet end of the high-pressure water pump is communicated with a water source, and a water outlet end of the high-pressure water pump is communicated with the high-pressure water pipe. The application has the effect of conveniently cleaning the clay and other dirt on the shield machine cutterhead.

Description

Technical Field

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

[0002] A tunnel boring machine (TBM) is a machine that uses a rotating cutterhead to break and cut soil or rock to excavate tunnels. The cutterhead of a TBM typically includes roller cutters for crushing rock, cutting cutters for cutting rock, leading cutters, and auxiliary cutters for trimming.

[0003] After the tunnel boring machine finishes its work, the cutterhead will be covered with clay and other dirt due to prolonged contact with the soil and rock. It is difficult to remove the dirt by simply rinsing with water pipes, and manual washing is labor-intensive and ineffective. There are areas for improvement. Utility Model Content

[0004] To facilitate the cleaning of clay and other dirt on the cutterhead of a tunnel boring machine, this application provides a cutterhead cleaning structure for a tunnel boring machine.

[0005] This application provides a shield machine cutterhead cleaning structure, which adopts the following technical solution: A shield tunneling machine cutterhead cleaning structure includes a base, on which two mounting brackets are fixedly connected. A lifting plate is slidably connected to the two mounting brackets via a lifting mechanism. A flushing mechanism is mounted on the lifting plate. The flushing mechanism includes a support frame, which is fixedly connected to the lifting plate. A high-pressure water pipe is fixedly connected to the support frame, and multiple high-pressure nozzles are fixedly connected to the high-pressure water pipe. A high-pressure water pump is also mounted on the lifting plate. The inlet of the high-pressure water pump is connected to a water source, and the outlet of the high-pressure water pump is connected to the high-pressure water pipe.

[0006] By adopting the above technical solution, when cleaning the cutterhead of the tunnel boring machine, the high-pressure nozzle is first aimed at the cutterhead, and then the high-pressure water pump is started to pressurize the water and spray it out from the high-pressure nozzle to clean the clay and other dirt on the cutterhead. At the same time, the lifting mechanism drives the high-pressure nozzle to rise and fall through the lifting plate, thereby realizing the overall cleaning of the entire cutterhead.

[0007] Optionally, a first sliding groove is provided on the end faces of the two mounting brackets that are close to each other. The lifting mechanism includes a first slider and a second slider. The first slider and the second slider are slidably connected in the two first sliding grooves respectively. The first slider and the second slider are fixedly connected to both ends of the lifting plate respectively. A sliding rod is fixedly connected to the side wall of the first sliding groove where the first slider is located. The sliding rod is slidably connected to the first slider. A first motor is fixedly connected to the end face of the mounting bracket away from the base. A lead screw is fixedly connected to the output shaft of the first motor. A lead screw nut is provided in the second slider. The lead screw and the lead screw nut cooperate with each other.

[0008] By adopting the above technical solution, when the nozzle is raised or lowered, the first motor starts, the first motor drives the lead screw to rotate, the lead screw drives the second slider to rise or fall, the second slider drives the lifting plate to rise or fall, and the lifting plate drives the high-pressure nozzle to rise or fall.

[0009] Optionally, a cleaning mechanism is also installed on the lifting plate. The cleaning mechanism includes a cleaning steel brush and a detachable component. The cleaning steel brush is installed on the lifting plate through the detachable component.

[0010] By adopting the above technical solution, the cleaning steel brush is installed to clean the surface of the tunnel boring machine cutterhead, thereby cleaning the stubborn dirt on the surface of the cutterhead and further improving the cleaning effect of the cutterhead.

[0011] Optionally, the lifting plate has a slot and a second sliding groove on its side wall. The second sliding groove has a third sliding groove on its side wall near the base that communicates with the slot. The detachable component includes a connecting rod. The connecting rod is fixedly connected to the cleaning steel brush, and one end of the connecting rod away from the cleaning steel brush is inserted into the slot. A limit groove is formed on the end face of the connecting rod away from the base. An L-shaped limit rod is slidably connected in the second sliding groove. A fixing seat is fixedly connected to the side wall of the second sliding groove away from the base. A fourth sliding groove is formed on the end face of the fixing seat near the L-shaped limit rod. A sliding shaft is slidably connected in the fourth sliding groove. A spring is fixedly connected to the bottom wall of the fourth sliding groove. The other end of the spring is fixedly connected to the sliding shaft. The end of the sliding shaft away from the spring is fixedly connected to the L-shaped limit rod. The end of the L-shaped limit rod away from the sliding shaft is inserted into the limit groove.

[0012] By adopting the above technical solution, the cleaning effect of the cleaning steel brush will be affected if it is not replaced for a long time during use. The setting of the connecting rod and L-shaped limit rod realizes the detachable connection of the cleaning steel brush, thereby realizing the replacement of the cleaning steel brush.

[0013] Optionally, a movable support mechanism is also installed on the base. The movable support mechanism includes multiple casters, each of which is rotatably connected to the end of the base away from the mounting bracket. Multiple pneumatic push rods are fixedly connected to the end face of the base away from the casters, and support legs are fixedly connected to the output shaft of each pneumatic push rod.

[0014] By adopting the above technical solution, the omnidirectional wheels enable the movement of the base, thereby enabling the movement of the entire device, making the movement of the entire device more convenient. Furthermore, the pneumatic push rod and support legs provide support for the base, improving stability during operation. Moreover, since the pneumatic push rod independently controls the support legs, the stability of the base is achieved on uneven ground.

[0015] Optionally, the mounting bracket is further equipped with a striking mechanism, which includes a mounting plate fixedly connected to the mounting bracket, and a striking block slidably connected to the mounting plate via a drive assembly.

[0016] By adopting the above technical solution, since there are many gaps on the cutterhead of the tunnel boring machine, stones may get stuck in the gaps during the operation of the tunnel boring machine, and it is difficult to clean them. The setting of the hammer block enables the hammering of the cutterhead of the tunnel boring machine, thereby making it easier to clean the stones in the gaps of the cutterhead.

[0017] Optionally, the drive assembly includes a fixing block fixedly connected to the mounting plate. A fifth sliding groove is formed on the side wall of the fixing block, and a sliding rod is slidably connected in the fifth sliding groove. The sliding rod is fixedly connected to the striking block, and a limit ring is fixedly connected to the end of the sliding rod away from the striking block. A second motor is also fixedly connected to the mounting plate, and a rotating disk is fixedly connected to the output shaft of the second motor. A rotation limit block is rotatably connected to the rotating disk, and the rotation limit block is eccentrically positioned and slidably connected in the limit ring.

[0018] By adopting the above technical solution, when the shield machine cutterhead is struck, the second motor starts, the second motor drives the rotating disk to rotate, the rotating disk drives the rotating limit block to rotate, the rotating limit block drives the limit ring to reciprocate, and the limit ring drives the striking block to reciprocate through the sliding rod, thereby realizing the striking of the shield machine cutterhead.

[0019] In summary, this application includes the following beneficial technical effects: 1. When cleaning the cutterhead of a tunnel boring machine (TBM), first aim the high-pressure nozzle at the TBM cutterhead, then start the high-pressure water pump to pressurize the water and spray it out from the high-pressure nozzle to clean the clay and other dirt on the TBM cutterhead. At the same time, the lifting mechanism drives the high-pressure nozzle to rise and fall through the lifting plate, thus achieving the overall cleaning of the entire TBM cutterhead. 2. The cleaning steel brushes enable the cleaning of the surface of the tunnel boring machine cutterhead, thereby removing stubborn dirt and grime and further improving the cleaning effect of the cutterhead. 3. If the cleaning steel brush is not replaced for a long time during use, its cleaning effect will be affected. The design of the connecting rod and L-shaped limit rod enables the cleaning steel brush to be detached and thus allows for its replacement. 4. Because there are many gaps on the cutterhead of the tunnel boring machine, stones can get stuck in the gaps during the operation of the machine, making them difficult to clean. The setting of the striking block allows the cutterhead to be struck, thus facilitating the cleaning of stones from the gaps. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the shield machine cutterhead cleaning structure in an embodiment of this application; Figure 2 This is a schematic diagram of the rinsing mechanism in an embodiment of this application; Figure 3 This is a cross-sectional view of the shield machine cutterhead cleaning structure in an embodiment of this application; Figure 4 This is a cross-sectional view of the cleaning mechanism in the embodiments of this application; Figure 5 This is a cross-sectional view of the fixing seat in an embodiment of this application; Figure 6 This is a schematic diagram of the striking mechanism in an embodiment of this application.

[0021] Reference numerals: 1. Base; 2. Mounting bracket; 21. First slide rail; 3. Lifting plate; 31. Slot; 32. Second slide rail; 33. Third slide rail; 4. Washing mechanism; 41. Support frame; 42. High-pressure water pipe; 43. High-pressure nozzle; 44. High-pressure water pump; 5. Lifting mechanism; 51. First slider; 52. Second slider; 53. First motor; 54. Lead screw; 55. Slide rod; 6. Cleaning mechanism; 61. Cleaning steel brush; 62. Detachable component; 621. Connecting rod; 62 2. L-shaped limiting rod; 623. Fixed base; 624. Sliding shaft; 625. Spring; 626. Limiting groove; 627. Fourth sliding groove; 7. Moving support mechanism; 71. Caster wheel; 72. Pneumatic push rod; 73. Support leg; 8. Striking mechanism; 81. Mounting plate; 82. Striking block; 83. Drive assembly; 831. Fixed block; 832. Sliding rod; 833. Limiting ring; 834. Second motor; 835. Rotating disk; 836. Rotation limiting block; 837. Fifth sliding groove. Detailed Implementation

[0022] The following is in conjunction with the appendix Figures 1-6 This application will be described in further detail.

[0023] This application discloses a shield tunneling machine cutterhead cleaning structure.

[0024] refer to Figure 1 The shield machine cutterhead cleaning structure includes a base 1, which is set on the ground by a movable support mechanism 7. Two mounting brackets 2 are fixedly connected to the end face of the base 1 away from the ground. Lifting plates 3 are slidably connected to the two mounting brackets 2 by a lifting mechanism 5. A flushing mechanism 4 and a sweeping mechanism 6 are installed on the lifting plates 3. A knocking mechanism 8 is also installed on the mounting brackets 2.

[0025] When cleaning the cutterhead of the tunnel boring machine, the base 1 is first moved to the position of the cutterhead by the moving support mechanism 7. Then, the flushing mechanism 4 sprays water to rinse the cutterhead. At the same time, the lifting mechanism 5 drives the flushing mechanism 4 to perform a thorough rinse. The lifting mechanism 5 also drives the sweeping mechanism 6 to clean the stubborn dirt on the cutterhead. The striking mechanism 8 shakes off the gravel stuck in the gaps of the cutterhead.

[0026] refer to Figure 2 The rinsing mechanism 4 includes multiple support frames 41, which are all fixedly connected to the end face of the lifting plate 3 away from the base 1. A high-pressure water pipe 42 is fixedly connected to the multiple support frames 41. Multiple high-pressure nozzles 43 are fixedly connected to the high-pressure water pipe 42. A high-pressure water pump 44 is also installed on the lifting plate 3. The inlet of the high-pressure water pump 44 is connected to the water source, and the outlet of the high-pressure water pump 44 is connected to the high-pressure water pipe 42.

[0027] When cleaning the cutterhead of the tunnel boring machine, the high-pressure nozzle 43 is first aimed at the cutterhead, and then the high-pressure water pump 44 is started to pressurize the water and spray it out from the high-pressure nozzle 43 to clean the clay and other dirt on the cutterhead. At the same time, the lifting mechanism 5 drives the high-pressure nozzle 43 to rise and fall through the lifting plate 3, thereby realizing the overall cleaning of the entire cutterhead.

[0028] refer to Figure 3 Each of the two mounting brackets 2 has a first sliding groove 21 on its end face that is close to each other. The lifting mechanism 5 includes a first slider 51 and a second slider 52. The first slider 51 and the second slider 52 are slidably connected in the two first sliding grooves 21 respectively. The first slider 51 and the second slider 52 are fixedly connected to the two ends of the lifting plate 3 respectively. A sliding rod 55 is fixedly connected to the side wall of the first sliding groove 21 where the first slider 51 is located. The sliding rod 55 is slidably connected to the first slider 51. A first motor 53 is fixedly connected to the end face of the mounting bracket 2 away from the base 1. A lead screw 54 is fixedly connected to the output shaft of the first motor 53. A lead screw nut is provided in the second slider 52. The lead screw 54 cooperates with the lead screw nut.

[0029] When the nozzle is raised or lowered, the first motor 53 starts, the first motor 53 drives the lead screw 54 to rotate, the lead screw 54 drives the second slider 52 to rise or fall, the second slider 52 drives the lifting plate 3 to rise or fall, and the lifting plate 3 drives the high-pressure nozzle 43 to rise or fall.

[0030] refer to Figure 4 and Figure 5 The cleaning mechanism 6 includes a cleaning steel brush 61 and a detachable component 62. The cleaning steel brush 61 is mounted on the lifting plate 3 via the detachable component 62. The side wall of the lifting plate 3 has multiple slots 31 and multiple second sliding grooves 32. The second sliding grooves 32 have a third sliding groove 33 communicating with the slots 31 on their side wall near the base 1. The detachable component 62 includes multiple connecting rods 621, each fixedly connected to the cleaning steel brush 61, with one end away from the cleaning steel brush 61 inserted into one of the slots 31. A limiting groove 626 is provided on the end face of the connecting rod 621 away from the base 1. The second sliding grooves 32... An L-shaped limiting rod 622 is slidably connected in the middle. A fixed seat 623 is fixedly connected to the side wall of the second slide groove 32 away from the base 1. A fourth slide groove 627 is opened on the end face of the fixed seat 623 near the L-shaped limiting rod 622. A sliding shaft 624 is slidably connected in the fourth slide groove 627. A spring 625 is fixedly connected to the bottom wall of the fourth slide groove 627. The other end of the spring 625 is fixedly connected to the sliding shaft 624. The end of the sliding shaft 624 away from the spring 625 is fixedly connected to the L-shaped limiting rod 622. The end of the L-shaped limiting rod 622 away from the sliding shaft 624 passes through the third slide groove 33 and is inserted into the limiting groove 626.

[0031] The cleaning steel brush 61 enables the cleaning of the surface of the tunnel boring machine cutterhead, thereby removing stubborn dirt and grime and improving the cleaning effect of the cutterhead. Furthermore, if the cleaning steel brush 61 is not replaced for a long time, its cleaning effect will be affected. The connecting rod 621 and the L-shaped limiting rod 622 enable the detachable connection of the cleaning steel brush 61, thus facilitating the replacement of the cleaning steel brush 61.

[0032] refer to Figure 6 The mobile support mechanism 7 includes multiple casters 71, which are rotatably connected to the end of the base 1 away from the mounting bracket 2. Multiple pneumatic push rods 72 are fixedly connected to the end face of the base 1 away from the casters 71, and support legs 73 are fixedly connected to the output shaft of the pneumatic push rods 72.

[0033] The omnidirectional wheels 71 enable the base 1 to move, thereby enabling the movement of the entire device, making the movement of the entire device more convenient. Furthermore, the pneumatic push rod 72 and the support leg 73 provide support for the base 1, improving stability during operation. Since the pneumatic push rod 72 independently controls the support leg 73, the base 1 is kept stable on uneven ground.

[0034] The striking mechanism 8 includes two mounting plates 81, which are fixedly connected to the end faces of two mounting brackets 2 that are far apart from each other. A striking block 82 is slidably connected to the mounting plate 81 via a drive assembly 83. The drive assembly 83 includes two fixing blocks 831, which are fixedly connected to the mounting plate 81. A fifth sliding groove 837 is provided on the side wall of the fixing block 831. A sliding rod 832 is slidably connected in the fifth sliding groove 837. The sliding rod 832 is fixedly connected to the striking block 82. A limit ring 833 is fixedly connected to the end of the sliding rod 832 away from the striking block 82. A second motor 834 is also fixedly connected to the mounting plate 81. A rotating disk 835 is fixedly connected to the output shaft of the second motor 834. A rotation limit block 836 is rotatably connected to the end face of the rotating disk 835 away from the second motor 834. The rotation limit block 836 is eccentrically set and slidably connected in the limit ring 833.

[0035] Because there are many gaps on the cutterhead of the tunnel boring machine (TBM), stones can get stuck in these gaps during operation, making them difficult to remove. The striking block 82 is designed to strike the cutterhead, thus facilitating the removal of stones from the gaps. When the cutterhead is struck, the second motor 834 starts, driving the rotating disk 835 to rotate. The rotating disk 835 then drives the rotation limit block 836 to rotate, which in turn drives the limit ring 833 to reciprocate. The limit ring 833, through the sliding rod 832, drives the striking block 82 to reciprocate, thereby achieving the striking of the cutterhead.

[0036] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A shield tunneling machine cutterhead cleaning structure, characterized in that, The device includes a base (1), on which two mounting brackets (2) are fixedly connected. A lifting plate (3) is slidably connected to the two mounting brackets (2) via a lifting mechanism (5). A rinsing mechanism (4) is installed on the lifting plate (3). The rinsing mechanism (4) includes a support frame (41), which is fixedly connected to the lifting plate (3). A high-pressure water pipe (42) is fixedly connected to the support frame (41). Multiple high-pressure nozzles (43) are fixedly connected to the high-pressure water pipe (42). A high-pressure water pump (44) is also installed on the lifting plate (3). The inlet of the high-pressure water pump (44) is connected to a water source, and the outlet of the high-pressure water pump (44) is connected to the high-pressure water pipe (42).

2. The shield machine cutterhead cleaning structure according to claim 1, characterized in that, The two mounting brackets (2) are provided with first sliding grooves (21) on their close end faces. The lifting mechanism (5) includes a first slider (51) and a second slider (52). The first slider (51) and the second slider (52) are slidably connected in the two first sliding grooves (21). The first slider (51) and the second slider (52) are fixedly connected to the two ends of the lifting plate (3). A sliding rod (55) is fixedly connected to the side wall of the first sliding groove (21) where the first slider (51) is located. The sliding rod (55) is slidably connected to the first slider (51). A first motor (53) is fixedly connected to the end face of the mounting bracket (2) away from the base (1). A lead screw (54) is fixedly connected to the output shaft of the first motor (53). A lead screw nut is provided in the second slider (52). The lead screw (54) cooperates with the lead screw nut.

3. The shield machine cutterhead cleaning structure according to claim 1, characterized in that, The lifting plate (3) is also equipped with a cleaning mechanism (6), which includes a cleaning steel brush (61) and a detachable component (62). The cleaning steel brush (61) is installed on the lifting plate (3) through the detachable component (62).

4. The shield machine cutterhead cleaning structure according to claim 3, characterized in that, The lifting plate (3) has a slot (31) and a second slide groove (32) on its side wall. The second slide groove (32) has a third slide groove (33) on its side wall near the base (1) that communicates with the slot (31). The detachable component (62) includes a connecting rod (621). The connecting rod (621) is fixedly connected to the cleaning steel brush (61), and one end of the connecting rod (621) away from the cleaning steel brush (61) is inserted into the slot (31). A limiting groove (626) is provided on the end face of the connecting rod (621) away from the base (1). An L-shaped limiting rod (622) is slidably connected in the second slide groove (32). The second slide groove (32) is away from the base (1). A fixed seat (623) is fixedly connected to the side wall of the base (1). A fourth sliding groove (627) is provided on the end face of the fixed seat (623) near the L-shaped limiting rod (622). A sliding shaft (624) is slidably connected in the fourth sliding groove (627). A spring (625) is fixedly connected to the bottom wall of the fourth sliding groove (627). The other end of the spring (625) is fixedly connected to the sliding shaft (624). The end of the sliding shaft (624) away from the spring (625) is fixedly connected to the L-shaped limiting rod (622). The end of the L-shaped limiting rod (622) away from the sliding shaft (624) is inserted into the limiting groove (626).

5. The shield machine cutterhead cleaning structure according to claim 1, characterized in that, The base (1) is also equipped with a movable support mechanism (7), which includes multiple casters (71). The multiple casters (71) are rotatably connected to one end of the base (1) away from the mounting frame (2). Multiple pneumatic push rods (72) are fixedly connected to the end face of the base (1) away from the casters (71). Support legs (73) are fixedly connected to the output shaft of the pneumatic push rods (72).

6. The shield machine cutterhead cleaning structure according to claim 1, characterized in that, The mounting bracket (2) is also equipped with a striking mechanism (8), which includes a mounting plate (81). The mounting plate (81) is fixedly connected to the mounting bracket (2), and a striking block (82) is slidably connected to the mounting plate (81) via a drive assembly (83).

7. The shield machine cutterhead cleaning structure according to claim 6, characterized in that, The drive assembly (83) includes a fixing block (831), which is fixedly connected to the mounting plate (81). A fifth sliding groove (837) is provided on the side wall of the fixing block (831). A sliding rod (832) is slidably connected in the fifth sliding groove (837). The sliding rod (832) is fixedly connected to the striking block (82). A limit ring (833) is fixedly connected to one end of the sliding rod (832) away from the striking block (82). A second motor (834) is also fixedly connected to the mounting plate (81). A rotating disk (835) is fixedly connected to the output shaft of the second motor (834). A rotation limit block (836) is rotatably connected to the rotating disk (835). The rotation limit block (836) is eccentrically set and slidably connected in the limit ring (833).

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