A cutterhead for slurry pipe jacking in long-distance water conveyance tunnels

Abstract

This application relates to a cutterhead for slurry pipe jacking in long-distance water conveyance tunnels, belonging to the technical field of tunnel construction equipment. It includes a cutter cylinder, a first mounting assembly, a second mounting assembly, and a drive assembly. The cutter cylinder has openings at both ends, with a cutter plate at one end and a sealing plate at the other. The cutter plate is rotatably connected to the cutter cylinder. Both the first and second mounting assemblies are located inside the cutter cylinder and are connected to roller cutters. An mounting cylinder is rotatably connected to the cutter plate, and both the first and second mounting assemblies are mounted on the mounting cylinder, arranged alternately. Multiple mounting slots are evenly distributed along the circumference of the mounting cylinder's axis on the cutter plate, and these slots can accommodate the roller cutters. The drive assembly is connected to the mounting cylinder. This application facilitates timely replacement of the roller cutterhead and reduces the overall wear rate of the roller cutterhead.

Description

Technical Field

[0001] This application relates to the field of tunnel construction equipment technology, and in particular to a slurry pipe jacking cutterhead for long-distance water conveyance tunnels. Background Technology

[0002] In the construction of long-distance water conveyance tunnels, slurry pipe jacking machines are widely used due to their good adaptability to geological formations and tunneling stability.

[0003] However, due to the characteristics of water conveyance tunnels, such as long distances and complex geological conditions (e.g., uneven strata, highly abrasive soil and rock, and high water pressure environment), traditional cutterheads are subjected to continuous soil and rock abrasion and impact loads during long-distance excavation. In particular, the wear rate of the cutterheads increases significantly in quartz sand layers, hard rock or pebble strata.

[0004] Traditional cutterheads are mostly integrally welded structures. After wear, the entire machine needs to be stopped to replace the cutterhead. At the same time, in long tunnels, the cutterhead is located far from the starting shaft, and the personnel changing the cutterhead need to travel long distances to and from the shaft, resulting in high time costs. Summary of the Invention

[0005] In order to facilitate timely replacement of the roller cutterhead and reduce the overall wear rate of the roller cutterhead, this application provides a slurry pipe jacking cutterhead for long-distance water conveyance tunnels.

[0006] The technical solution provided in this application for a slurry pipe jacking cutterhead for a long-distance water conveyance tunnel adopts the following:

[0007] A cutterhead for slurry pipe jacking in a long-distance water conveyance tunnel includes a cutter cylinder, a first mounting assembly, a second mounting assembly, and a drive assembly. The cutter cylinder has openings at both ends, with a cutter plate at one end and a sealing plate at the other. The cutter plate is rotatably connected to the cutter cylinder. Both the first and second mounting assemblies are located inside the cutter cylinder and are connected to roller cutters. An mounting cylinder is rotatably connected to the cutter plate. Both the first and second mounting assemblies are mounted on the mounting cylinder and are staggered. The cutter plate has multiple mounting slots evenly distributed circumferentially along the axis of the mounting cylinder. The mounting slots can accommodate the roller cutters. The first mounting assembly is used to drive the roller cutters on the first mounting assembly to be located at the mounting slots. The second mounting assembly is used to drive the roller cutters on the second mounting assembly to be located at the mounting slots. The drive assembly is connected to the mounting cylinder and is used to drive the mounting cylinder to rotate.

[0008] By adopting the above technical solution, in the initial state, the first mounting component installs the hob cutter into the mounting slot. When replacing the hob cutter, the first mounting component is activated, and it removes the hob cutter from the mounting slot. The drive component is then activated, and it drives the mounting cylinder to rotate. When the mounting cylinder rotates, it drives the second mounting component to rotate. The second mounting component drives the hob cutter located on it into the mounting slot until the hob cutter is located in the mounting slot and protrudes from the surface of the cutter plate, which facilitates timely replacement of the hob cutter disc. When wear occurs in the hob cutter, it is replaced in time, and the replaced hob cutter is inspected. The hob cutter reduces the overall wear rate of the hob cutter disc.

[0009] Optionally, the first mounting assembly includes multiple first mounting rods and a first drive. The multiple first mounting rods are circumferentially distributed around the periphery of the mounting cylinder. The hobbing cutter is detachably connected to the first mounting rods. The mounting cylinder is circumferentially provided with multiple sliding grooves. Each first mounting rod is provided with a first sliding block at one end near the sliding groove. The first sliding block is located in the sliding groove and is slidably connected to the sliding groove. The first sliding block can move closer to or away from the cutter plate along the sliding groove. The first drive is connected to the first sliding block and is used to drive the first sliding block closer to or away from the cutter plate.

[0010] By adopting the above technical solution, the first drive drives the first sliding block to push the first mounting rod. The first mounting rod approaches the mounting cylinder and mounts the hobbing cutter on the cutter plate. The hobbing cutter is detachably connected to the first mounting rod, which facilitates the replacement of the hobbing cutter.

[0011] Optionally, the second mounting assembly includes multiple second mounting rods and a second drive. The multiple second mounting rods are circumferentially distributed around the periphery of the mounting cylinder. The second mounting rods are staggered with the first mounting rods. The hobbing cutter is detachably connected to the second mounting rods. A second sliding block is provided at one end of the second mounting rod near the sliding groove. The second sliding block is located in the sliding groove and is slidably connected to the sliding groove. The second sliding block can move closer to or away from the cutter plate along the sliding groove. The second drive is connected to the second sliding block and is used to drive the second sliding block closer to or away from the cutter plate.

[0012] By adopting the above technical solution, when it is necessary to replace the hobbing cutter, the hobbing cutter on the first mounting component is removed, the drive component is started, the drive component moves the second mounting component to the mounting through slot, the second drive drives the second sliding block to push the second mounting rod, the second mounting rod approaches the mounting cylinder, and the hobbing cutter is mounted on the cutter plate.

[0013] Optionally, the first drive includes a first connecting rod, a first connecting ring, a first extension plate, and a first lifting member. The first connecting rod is connected to a first sliding block. Multiple first connecting rods are provided, and one first sliding block corresponds to one first connecting rod. The first connecting ring is located at the end of the first connecting rod away from the blade plate and on the outer periphery of the first connecting rod. One end of the first extension plate is connected to the first connecting ring, and the other end is slidably connected to the blade cylinder. The blade cylinder is provided with a first annular groove, a second annular groove, and multiple clearance grooves. The first extension plate is slidably connected to both the first and second annular grooves. The multiple clearance grooves are evenly distributed along the axial direction of the blade cylinder and are used to connect the first and second annular grooves. The first extension plate can enter the second annular groove along the first annular groove and through the clearance groove. The first lifting member is located at the end of the first extension plate away from the blade plate. One end of the first lifting member is connected to the first extension plate, and the other end is slidably connected to the drive assembly. The sliding direction of the first lifting member is the same as the rotation direction of the drive assembly. The first lifting member is used to drive the first extension plate closer to or away from the blade plate.

[0014] By adopting the above technical solution, the first lifting component drives the first extension plate to rise, the first extension plate drives the first connecting ring and the first connecting rod to rise, thereby pushing the first sliding block and pushing the first mounting rod into the mounting through groove. The first connecting rod can rotate with the rotation of the mounting cylinder. When the first connecting rod rotates, it can slide in the first ring groove and the second ring groove. The connecting groove allows the first connecting rod to enter the first ring groove or the second ring groove when it enters or leaves the mounting through groove.

[0015] Optionally, the second drive includes a second connecting rod, a second connecting ring, a second extension plate, and a second lifting member. The second connecting rod is connected to a second sliding block. Multiple second connecting rods are provided, with one second connecting rod corresponding to one second sliding block. The second connecting ring is located at the end of the second connecting rod away from the blade plate. The second connecting ring is coaxially located within the first connecting ring. One end of the second extension plate is connected to the second connecting ring, and the other end is slidably connected to the blade cylinder. The blade cylinder is provided with a third annular groove and a fourth annular groove. A clearance groove can also connect the third annular groove and the fourth annular groove. The second extension plate can enter the fourth annular groove along the third annular groove and through the clearance groove. The second lifting member is located at the end of the second extension plate away from the blade plate. One end of the second lifting member is connected to the second extension plate, and the other end is slidably connected to the drive assembly. The sliding direction of the second lifting member is the same as the rotation direction of the drive assembly. The second lifting member is used to drive the second extension plate closer to or away from the blade plate.

[0016] By adopting the above technical solution, the second lifting component drives the second extension plate to rise, and the second extension plate drives the second connecting ring and the second connecting rod to rise, thereby pushing the second sliding block and pushing the second mounting rod into the mounting through groove. The second connecting rod can rotate with the rotation of the mounting cylinder. When the second connecting rod rotates, it can slide in the third ring groove and the fourth ring groove. The connecting groove allows the second connecting rod to enter the third ring groove or the fourth ring groove when it enters or leaves the mounting through groove.

[0017] Optionally, a support member is rotatably connected to the end of the drive assembly away from the blade plate. One end of the support member is slidably connected to the inner wall of the blade cylinder, and the other end is connected to the first lifting member and the second lifting member. The sliding direction of the support member is the same as the rotation direction of the drive assembly.

[0018] By adopting the above technical solution, the support member is used to install the first lifting member and the second lifting member inside the cutter barrel, and can move relative to the first mounting assembly and the second mounting assembly, which facilitates the replacement of the hobbing cutter.

[0019] Optionally, the drive assembly includes a drive rod and a drive component. The drive rod is engaged with the mounting sleeve, one end of the drive component is connected to the drive rod, and the other end is connected to the sealing plate. The drive component is used to drive the drive rod to rotate.

[0020] By adopting the above technical solution, the driving component is activated, which drives the driving rod to rotate. The driving rod drives the mounting cylinder to rotate. When the first or second mounting rod on the mounting cylinder is located in the mounting through groove, it can drive the blade plate to rotate, thereby performing jacking.

[0021] Optionally, the support includes a mounting plate and multiple support rods. The mounting plate is rotatably connected to the end of the drive rod away from the blade plate. A support ring groove is formed at the end of the mounting plate away from the blade plate. The multiple support rods are slidably connected in the support ring groove. The end of the support rod away from the support ring groove is slidably connected to the inner wall of the blade cylinder.

[0022] By adopting the above technical solution, when the first mounting component and the second mounting component rotate along the mounting cylinder, the mounting plate rotates under the action of the support rod, which facilitates the support of the first lifting component and the second lifting component.

[0023] Optionally, the first mounting rod and the second mounting rod have the same structure. The first mounting rod includes a sealing strip and a mounting strip. The sealing strip has an equilateral trapezoidal cross section. The upper surface of the sealing strip is smaller than the lower surface of the sealing strip. The mounting strip is located at the top of the sealing strip. The mounting strip has a mounting groove for mounting the roller cutter. The roller cutter has a fixing member for fixing the roller cutter in the mounting groove.

[0024] By adopting the above technical solution, the cross-section of the sealing strip is an equilateral trapezoid, which can reduce the possibility of mud and water entering the cutter cylinder when limiting the cutting tool.

[0025] Optionally, the width of the mounting strip is equal to the width of the top of the sealing strip, and the blade plate has a first placement groove and a second placement groove, which are connected. The first placement groove is used to place the mounting strip, and the second placement groove is used to place the sealing strip. The cross-section of the second placement groove is the same as the cross-section of the sealing strip.

[0026] By adopting the above technical solution, the first placement groove and the second placement groove facilitate the installation of the first mounting rod or the second mounting rod on the blade plate, and improve the sealing performance of the first mounting rod or the second mounting rod on the blade plate.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] By staggering the first and second mounting components, and allowing each component to install the hobbing cutter independently, the hobbing cutter can be raised, lowered, and rotated during replacement. The drive component rotates the mounting cylinder. When the mounting slot contains the hobbing cutter, the drive component rotates the cutter plate. When the mounting slot does not contain the hobbing cutter, the drive component rotates either the first or second mounting component. This facilitates timely replacement of the hobbing cutter disc and reduces the overall wear rate of the hobbing cutter disc.

[0029] The second connecting ring and the first connecting ring are set as coaxial rings with different diameters, which makes it easy to fix the first mounting rod and the second mounting rod on the mounting cylinder at the same time, and also allows the first mounting rod or the second mounting rod to be raised and lowered individually, which facilitates the replacement of the hobbing cutter. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0032] Figure 2 This is a schematic diagram of the overall structure of the hidden blade cylinder according to an embodiment of this application;

[0033] Figure 3 This is a schematic diagram of the overall structure of the hidden blade cylinder from another perspective of an embodiment of this application;

[0034] Figure 4 This is a partial perspective sectional view of an embodiment of this application;

[0035] Figure 5 This is a partial perspective sectional view of an embodiment of this application;

[0036] Figure 6 This is a schematic diagram of the structure of the first and second mounting components according to an embodiment of this application;

[0037] Figure 7 This is a schematic diagram of the structure of the first and second mounting components from another perspective in an embodiment of this application;

[0038] Figure 8 This is a schematic diagram of the structure of the first and second mounting components from another perspective in an embodiment of this application;

[0039] Figure 9 This is a structural schematic diagram of the first and second mounting components from another perspective, representing an embodiment of this application.

[0040] Explanation of reference numerals in the attached drawings: 1. Knife cylinder; 11. Knife plate; 111. Mounting groove; 112. First placement groove; 113. Second placement groove; 12. Sealing plate; 13. Mounting cylinder; 131. Sliding groove; 14. First annular groove; 15. Second annular groove; 16. Third annular groove; 17. Fourth annular groove; 18. Clearance groove; 2. First mounting assembly; 21. First mounting rod; 211. Sealing strip; 212. Mounting strip; 213. Mounting groove; 22. First sliding block; 23. First drive; 2 4. First connecting rod; 25. First connecting ring; 26. First extension plate; 27. First lifting component; 3. Second mounting assembly; 31. Second mounting rod; 32. Second sliding block; 33. Second drive; 34. Second connecting rod; 35. Second connecting ring; 36. Second extension plate; 37. Second lifting component; 4. Drive assembly; 41. Drive rod; 42. Drive component; 5. Hob component; 51. Fixing component; 6. Support component; 61. Mounting plate; 62. Support ring groove; 63. Support rod. Detailed Implementation

[0041] The following is in conjunction with the appendix Figure 1-9 This application will be described in further detail.

[0042] This application discloses a cutterhead for slurry pipe jacking in a long-distance water conveyance tunnel, referring to... Figure 1 , Figure 2 and Figure 3A cutterhead for slurry pipe jacking in a long-distance water conveyance tunnel includes a cutter cylinder 1, a first mounting assembly 2, a second mounting assembly 3, and a drive assembly 4. The cutter cylinder 1 has openings at both ends. One end of the cutter cylinder 1 is rotatably connected to a cutter plate 11 via a slider-slide connection, and the other end is welded to a sealing plate 12. Both the first mounting assembly 2 and the second mounting assembly 3 are located inside the cutter cylinder 1, and both are connected to roller cutters 5. An mounting cylinder 13 is rotatably connected to the cutter plate 11. Both the first mounting assembly 2 and the second mounting assembly 3... The first mounting component 2 and the second mounting component 3 are staggered on the mounting cylinder 13. The blade 11 has a plurality of mounting slots 111 evenly distributed around the axis of the mounting cylinder 13. The mounting slots 111 can accommodate the hobbing cutter 5. The first mounting component 2 is used to drive the hobbing cutter 5 on the first mounting component 2 to be located at the mounting slot 111. The second mounting component 3 is used to drive the hobbing cutter 5 on the second mounting component 3 to be located at the mounting slot 111. The drive component 4 is connected to the mounting cylinder 13 and is used to drive the mounting cylinder 13 to rotate.

[0043] Reference Figure 4 , Figure 5 and Figure 6 The first mounting component 2 includes multiple first mounting rods 21 and a first drive 23. In this embodiment, there are four first mounting rods 21, which are evenly distributed around the periphery of the mounting cylinder 13. The hobbing cutter 5 is detachably connected to the first mounting rods 21. The mounting cylinder 13 is evenly distributed around the periphery with multiple sliding grooves 131. In this embodiment, there are eight sliding grooves 131. Each first mounting rod 21 is provided with a first sliding block 22 at one end near the sliding groove 131. The first sliding block 22 is located inside the sliding groove 131 and is slidably connected to the sliding groove 131. The first sliding block 22 can move closer to or away from the blade plate 11 along the sliding groove 131. The first drive 23 is connected to the first sliding block 22 and is used to drive the first sliding block 22 closer to or away from the blade plate 11.

[0044] Furthermore, referring to Figure 5 , Figure 6 and Figure 7 The second mounting component 3 includes multiple second mounting rods 31 and a second drive 33. The multiple second mounting rods 31 are evenly distributed around the periphery of the mounting cylinder 13. In this embodiment, there are four second mounting rods 31. The second mounting rods 31 are staggered with the first mounting rods 21. The hobbing cutter 5 is detachably connected to the second mounting rods 31. A second sliding block 32 is provided at one end of the second mounting rod 31 near the sliding groove 131. The second sliding block 32 is located in the sliding groove 131 and is slidably connected to the sliding groove 131. The second sliding block 32 can move closer to or away from the blade plate 11 along the sliding groove 131. The second drive 33 is connected to the second sliding block 32 and is used to drive the second sliding block 32 closer to or away from the blade plate 11.

[0045] Reference Figure 5 , Figure 6 and Figure 7 The first mounting rod 21 and the second mounting rod 31 have the same structure. The first mounting rod 21 includes a sealing strip 211 and a mounting strip 212. The sealing strip 211 has an equilateral trapezoidal cross section. The upper surface of the sealing strip 211 is smaller than the lower surface of the sealing strip 211. The mounting strip 212 is located at the top of the sealing strip 211. The mounting strip 212 has a mounting groove 213 for mounting the roller cutter 5. The roller cutter 5 has a fixing member 51 for fixing the roller cutter 5 in the mounting groove 213. In this embodiment, the opening direction of the mounting groove 213 is the same as the length direction of the mounting strip 212. The mounting groove 213 is an oblong groove. The hobbing cutter 5 includes a cutting strip and multiple hobbing cutters welded to the upper surface of the cutting strip. The multiple hobbing cutters are arranged at equal intervals. When installing the cutting strip, the cutting strip is inserted into the mounting groove 213 along the length direction of the mounting strip 212. The cutting strip is fixed by the fixing member 51. The fixing member 51 consists of six internal hex bolts. The fixing member 51 passes through the sealing strip 211, the mounting strip 212 and the cutting strip from bottom to top, and is threadedly connected to the sealing strip 211, the mounting strip 212 and the cutting strip, thereby fixing the cutting strip on the first mounting rod 21.

[0046] Reference Figure 4 , Figure 5 and Figure 6 The width of the mounting strip 212 is equal to the width of the top of the sealing strip 211. The blade 11 has a first placement groove 112 and a second placement groove 113, which are connected. The first placement groove 112 is used to place the mounting strip 212, and the second placement groove 113 is used to place the sealing strip 211. The cross-section of the second placement groove 113 is the same as the cross-section of the sealing strip 211.

[0047] Specifically, refer to Figures 6-9The first drive 23 includes a first connecting rod 24, a first connecting ring 25, a first extension plate 26, and a first lifting member 27. The first connecting rod 24 is connected to the first sliding block 22. There are four first connecting rods 24, with one first sliding block 22 corresponding to one first connecting rod 24. The first connecting ring 25 is located at the end of the first connecting rod 24 away from the blade plate 11, and the first connecting ring 25 is located on the outer periphery of the first connecting rod 24. One end of the first extension plate 26 is connected to the first connecting ring 25, and the other end is slidably connected to the blade cylinder 1. The blade cylinder 1 is provided with a first annular groove 14, a second annular groove 15, and eight clearance grooves 18. The first extension plate 26 is slidably connected to both the first annular groove 14 and the second annular groove 15. A clearance groove 18 is evenly distributed along the axial direction of the cutter barrel 1. The clearance groove 18 is used to connect the first annular groove 14 and the second annular groove 15. The first extension plate 26 can enter the second annular groove 15 along the first annular groove 14 via the clearance groove 18. The first lifting member 27 is located at the end of the first extension plate 26 away from the cutter plate 11. One end of the first lifting member 27 is connected to the first extension plate 26, and the other end is slidably connected to the drive assembly 4. The sliding direction of the first lifting member 27 is the same as the rotation direction of the drive assembly 4. The first lifting member 27 is used to drive the first extension plate 26 to move closer to or away from the cutter plate 11. The first extension plate 26 can slide along the first annular groove 14 or the second annular groove 15. The sliding direction is the same as the rotation direction of the drive assembly 4.

[0048] Reference Figures 6-9 The second drive 33 includes a second connecting rod 34, a second connecting ring 35, a second extension plate 36, and a second lifting member 37. The second connecting rod 34 is connected to the second sliding block 32. There are four second connecting rods 34. One second connecting rod 34 is provided for each second sliding block 32. The second connecting ring 35 is located at the end of the second connecting rod 34 away from the blade plate 11. The second connecting ring 35 is coaxially located inside the first connecting ring 25. One end of the second extension plate 36 is connected to the second connecting ring 35, and the other end is slidably connected to the blade cylinder 1.

[0049] Reference Figure 4 The cutter barrel 1 is provided with a third annular groove 16 and a fourth annular groove 17. The clearance groove 18 can also connect the third annular groove 16 and the fourth annular groove 17. The second extension plate 36 can enter the fourth annular groove 17 along the third annular groove 16 via the clearance groove 18. The second lifting member 37 is provided at the end of the second extension plate 36 away from the cutter plate 11. One end of the second lifting member 37 is connected to the second extension plate 36, and the other end is slidably connected to the drive assembly 4. The sliding direction of the second lifting member 37 is the same as the rotation direction of the drive assembly 4. The second lifting member 37 is used to drive the second extension plate 36 to move closer to or away from the cutter plate 11. The second extension plate 36 can slide along the third annular groove 16 or the fourth annular groove 17, and the sliding direction is the same as the rotation direction of the drive assembly 4.

[0050] Reference Figure 2 and Figure 3 The drive assembly 4 has a support member 6 rotatably connected to one end away from the blade plate 11. One end of the support member 6 is slidably connected to the inner wall of the blade cylinder 1, and the other end is connected to the first lifting member 27 and the second lifting member 37. The sliding direction of the support member 6 is the same as the rotation direction of the drive assembly 4. The drive assembly 4 includes a drive rod 41 and a drive member 42. The drive rod 41 is engaged with the mounting cylinder 13. One end of the drive member 42 is connected to the drive rod 41, and the other end is connected to the sealing plate 12. The drive member 42 is used to drive the drive rod 41 to rotate.

[0051] Reference Figure 2 and Figure 3 The support member 6 includes a mounting plate 61 and four support rods 63. The mounting plate 61 is rotatably connected to the end of the drive rod 41 away from the blade plate 11 via a bearing. A support ring groove 62 is provided at the end of the mounting plate 61 away from the blade plate 11. The four support rods 63 are slidably connected to the support ring groove 62 via a slider groove. The end of the support rod 63 away from the support ring groove 62 is slidably connected to the inner wall of the blade cylinder 1.

[0052] The implementation principle of the slurry pipe jacking cutterhead in a long-distance water conveyance tunnel according to an embodiment of this application is as follows: In the initial state, the first installation component 2 installs the cutter head 5 into the installation slot 111. When replacing the cutter head 5, the first lifting component 27 is activated. The first lifting component 27 drives the first extension plate 26 downward, and the first extension plate 26 drives the first connecting ring 25 and the first connecting rod 24 downward, while simultaneously driving the first sliding block 22 and the first mounting rod 21 downward, until the first mounting rod 21 drives the cutter head 5 to disengage from the installation slot 111. Then, the driving component 42 is activated, and the driving component 42 drives the driving rod 41 to rotate until the second installation component 3 is positioned at the installation slot 111. Below the through groove 111, the second lifting component 37 is activated. The second lifting component 37 drives the second extension plate 36, the second connecting ring 35, the second connecting rod 34, the second sliding block 32, and the second mounting rod 31 to rise until the hobbing cutter 5 on the second mounting rod 31 enters the mounting through groove 111 and is fixed in the mounting through groove 111, which facilitates timely replacement of the hobbing cutter disc and reduces the overall wear rate of the hobbing cutter disc. During the jacking process, the driving component 42 is activated. The driving component 42 drives the driving rod 41 to rotate, the driving rod 41 drives the mounting cylinder 13 to rotate, and the mounting cylinder 13 drives the second mounting rod 31 to rotate the cutter plate 11, thereby jacking.

[0053] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "an" or "a" and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" and similar terms mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0054] The above are all optional 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 cutterhead for slurry pipe jacking in a long-distance water conveyance tunnel, characterized in that: The assembly includes a cutter barrel (1), a first mounting assembly (2), a second mounting assembly (3), and a drive assembly (4). The cutter barrel (1) is open at both ends. One end of the cutter barrel (1) is provided with a cutter plate (11), and the other end is provided with a sealing plate (12). The cutter plate (11) is rotatably connected to the cutter barrel (1). The first mounting assembly (2) and the second mounting assembly (3) are both located inside the cutter barrel (1). Both the first mounting assembly (2) and the second mounting assembly (3) are connected to a hobbing cutter (5). A mounting cylinder (13) is rotatably connected to the cutter plate (11). The first mounting assembly (2) and the second mounting assembly (3) are both located on the mounting cylinder (13). The first mounting assembly (2) and the second mounting assembly (3) are staggered. The cutter plate (11) is evenly distributed with multiple cutters along the circumferential direction of the axis of the mounting cylinder (13). A mounting slot (111) is provided, which can accommodate the hobbing cutter (5). The first mounting component (2) is used to drive the hobbing cutter (5) on the first mounting component (2) to be located in the mounting slot (111) and to remove the hobbing cutter (5) from the mounting slot (111). The second mounting component (3) is used to drive the hobbing cutter (5) on the second mounting component (3) to be located in the mounting slot (111). The second mounting component (3) drives the hobbing cutter (5) located on the second mounting component (3) into the mounting slot (111) until the hobbing cutter (5) is located in the mounting slot (111) and protrudes from the surface of the cutter plate (11). The drive component (4) is connected to the mounting cylinder (13) and is used to drive the mounting cylinder (13) to rotate. The first mounting assembly (2) includes a plurality of first mounting rods (21) and a first drive (23). The plurality of first mounting rods (21) are evenly distributed around the periphery of the mounting cylinder (13). The hobbing cutter (5) is detachably connected to the first mounting rods (21). The first drive (23) is connected to the first mounting rods (21). The first drive (23) is used to drive the first mounting rods (21) to move closer to or away from the blade plate (11). The first drive (23) includes a first connecting rod (24), a first connecting ring (25), a first extension plate (26), and a first lifting member (27). The first connecting ring (25) is located at the end of the first connecting rod (24) away from the blade plate (11). The first connecting ring (25) is located on the outer periphery of the first connecting rod (24). One end of the first extension plate (26) is connected to the first connecting ring (25), and the other end is slidably connected to the blade cylinder (1). The second mounting assembly (3) includes multiple second mounting rods (31) and a second drive (33). The multiple second mounting rods (31) are evenly distributed circumferentially around the mounting cylinder (13). The second mounting rods (31) are staggered with the first mounting rods (21). The hobbing cutter (5) is detachably connected to the second mounting rods (31). The first drive (23) is connected to the second mounting rods (31). The second drive (33) is used to drive the second mounting rods (31) closer to or away from the cutter plate (11). The device includes a second connecting rod (34), a second connecting ring (35), a second extension plate (36), and a second lifting member (37). The second connecting ring (35) is located at the end of the second connecting rod (34) away from the blade plate (11). The second connecting ring (35) is coaxially located inside the first connecting ring (25). One end of the second extension plate (36) is connected to the second connecting ring (35), and the other end is slidably connected to the blade cylinder (1).

2. The cutterhead for slurry pipe jacking in a long-distance water conveyance tunnel according to claim 1, characterized in that: The mounting cylinder (13) is provided with a plurality of sliding grooves (131) evenly distributed around its circumference. The first mounting rod (21) is provided with a first sliding block (22) at one end near the sliding groove (131). The first sliding block (22) is located in the sliding groove (131) and is slidably connected to the sliding groove (131). The first sliding block (22) can move closer to or away from the blade plate (11) along the sliding groove (131). The first drive (23) is connected to the first sliding block (22) and is used to drive the first sliding block (22) closer to or away from the blade plate (11).

3. The slurry pipe jacking cutterhead for a long-distance water conveyance tunnel according to claim 2, characterized in that: The second mounting rod (31) is provided with a second sliding block (32) at one end near the sliding groove (131). The second sliding block (32) is located in the sliding groove (131) and is slidably connected to the sliding groove (131). The second sliding block (32) can move closer to or away from the blade plate (11) along the sliding groove (131). The second drive (33) is connected to the second sliding block (32). The second drive (33) is used to drive the second sliding block (32) closer to or away from the blade plate (11).

4. The slurry pipe jacking cutterhead for a long-distance water conveyance tunnel according to claim 3, characterized in that: The first connecting rod (24) is connected to the first sliding block (22). Multiple first connecting rods (24) are provided, and one first sliding block (22) corresponds to one first connecting rod (24). The cutter barrel (1) is provided with a first annular groove (14), a second annular groove (15), and multiple clearance grooves (18). The first extension plate (26) is slidably connected to both the first annular groove (14) and the second annular groove (15). The multiple clearance grooves (18) are evenly distributed along the axial direction of the cutter barrel (1). The clearance grooves (18) are used to connect the first annular groove (14) and the second annular groove (15). 5) The first extension plate (26) can enter the second annular groove (15) through the relief groove (18) along the first annular groove (14). The first lifting member (27) is located at the end of the first extension plate (26) away from the blade plate (11). One end of the first lifting member (27) is connected to the first extension plate (26), and the other end is slidably connected to the drive assembly (4). The sliding direction of the first lifting member (27) is the same as the rotation direction of the drive assembly (4). The first lifting member (27) is used to drive the first extension plate (26) to move closer to or away from the blade plate (11).

5. The slurry pipe jacking cutterhead for a long-distance water conveyance tunnel according to claim 4, characterized in that: The second connecting rod (34) is connected to the second sliding block (32). There are multiple second connecting rods (34). One second sliding block (32) corresponds to one second connecting rod (34). The cutter barrel (1) is provided with a third annular groove (16) and a fourth annular groove (17). The clearance groove (18) can also connect the third annular groove (16) and the fourth annular groove (17). The second extension plate (36) can enter the fourth annular groove (17) along the third annular groove (16) through the clearance groove (18). The second lifting member (37) is located at the end of the second extension plate (36) away from the cutter plate (11). One end of the second lifting member (37) is connected to the second extension plate (36), and the other end is slidably connected to the drive assembly (4). The sliding direction of the second lifting member (37) is the same as the rotation direction of the drive assembly (4). The second lifting member (37) is used to drive the second extension plate (36) to move closer to or away from the cutter plate (11).

6. The slurry pipe jacking cutterhead for a long-distance water conveyance tunnel according to claim 5, characterized in that: The drive assembly (4) is rotatably connected to a support member (6) at one end away from the blade plate (11). One end of the support member (6) is slidably connected to the inner wall of the blade cylinder (1), and the other end is connected to the first lifting member (27) and the second lifting member (37). The sliding direction of the support member (6) is the same as the rotation direction of the drive assembly (4).

7. The slurry pipe jacking cutterhead for a long-distance water conveyance tunnel according to claim 6, characterized in that: The drive assembly (4) includes a drive rod (41) and a drive component (42). The drive rod (41) is engaged with the mounting cylinder (13). One end of the drive component (42) is connected to the drive rod (41), and the other end is connected to the sealing plate (12). The drive component (42) is used to drive the drive rod (41) to rotate.

8. The slurry pipe jacking cutterhead for a long-distance water conveyance tunnel according to claim 7, characterized in that: The support member (6) includes a mounting plate (61) and multiple support rods (63). The mounting plate (61) is rotatably connected to the end of the drive rod (41) away from the blade plate (11). A support ring groove (62) is provided at the end of the mounting plate (61) away from the blade plate (11). Multiple support rods (63) are slidably connected in the support ring groove (62). The end of the support rod (63) away from the support ring groove (62) is slidably connected to the inner wall of the blade cylinder (1).

9. A slurry pipe jacking cutterhead for a long-distance water conveyance tunnel according to claim 3, characterized in that: The first mounting rod (21) has the same structure as the second mounting rod (31). The first mounting rod (21) includes a sealing strip (211) and a mounting strip (212). The sealing strip (211) has an equilateral trapezoidal cross section. The upper surface of the sealing strip (211) is smaller than the lower surface of the sealing strip (211). The mounting strip (212) is located on the top of the sealing strip (211). The mounting strip (212) has a mounting groove (213) for mounting the roller cutter (5). The roller cutter (5) has a fixing member (51) for fixing the roller cutter (5) in the mounting groove (213).

10. A slurry pipe jacking cutterhead for a long-distance water conveyance tunnel according to claim 9, characterized in that: The width of the mounting strip (212) is equal to the width of the top of the sealing strip (211). The blade (11) has a first placement groove (112) and a second placement groove (113). The first placement groove (112) and the second placement groove (113) are connected. The first placement groove (112) is used to place the mounting strip (212), and the second placement groove (113) is used to place the sealing strip (211). The cross-section of the second placement groove (113) is the same as the cross-section of the sealing strip (211).

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