Jacking cutter head for muddy water jacking pipe of long-distance water delivery tunnel

Abstract

The invention relates to the technical field of tunnel construction devices, in particular to a long-distance water tunnel muddy water jacking pipe jacking cutterhead which comprises a cutter cylinder, a first mounting assembly, a second mounting assembly and a driving assembly, the two ends of the cutter cylinder are open, a cutter plate is arranged at one end of the cutter cylinder, a sealing plate is arranged at the other end of the cutter cylinder, and the cutter plate is rotationally connected with the cutter cylinder; the first mounting assembly and the second mounting assembly are both arranged in the cutter cylinder and are both connected with hobbing cutter parts, a mounting cylinder is rotationally connected to the cutter plate, the first mounting assembly and the second mounting assembly are both arranged on the mounting cylinder, and the first mounting assembly and the second mounting assembly are arranged in a staggered mode. A plurality of installation through grooves are evenly distributed in the cutter plate in the circumferential direction of the axis of the installation cylinder, the installation through grooves can contain the hobbing cutter pieces, and the driving assembly is connected with the installation cylinder. The hobbing cutter head has the effects that the hobbing cutter head can be conveniently replaced in time, and the overall loss rate of the hobbing cutter head is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of tunnel construction equipment, and in particular to a slurry pipe jacking cutterhead for a long-distance water supply tunnel. Background Art

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

[0003] However, since water supply tunnels are usually long distances and have complex geological conditions (such as uneven soft and hard strata, highly abrasive rock and soil, and high water pressure environments), traditional cutterheads and tools are continuously subjected to rock and soil abrasion and impact loads during long-distance excavation during construction. Especially in quartz sand layers, hard rock or pebble formations, the tool wear rate increases significantly.

[0004] Traditional cutterheads are mostly integrally welded structures. After wear, the entire machine needs to be shut down for replacement. At the same time, in long-distance tunnels, the cutterhead is located far away from the starting shaft, and the cutter changers need to travel long distances back and forth, which increases the operation time and cost. Summary of the Invention

[0005] In order to facilitate the timely replacement of the rotary cutter disc and reduce the overall loss rate of the rotary cutter disc, the present application provides a long-distance water supply tunnel mud-water jacking pipe jacking cutter disc.

[0006] The present application provides a long-distance water tunnel slurry jacking cutterhead adopting the following technical solution: A long-distance water supply tunnel mud and water jacking cutter disc comprises a cutter drum, a first mounting assembly, a second mounting assembly and a driving assembly, wherein both ends of the cutter drum are opened, one end of the cutter drum is provided with a cutter plate, and the other end is provided with a sealing plate, the cutter plate is rotatably connected to the cutter drum, the first mounting assembly and the second mounting assembly are both arranged in the cutter drum, the first mounting assembly and the second mounting assembly are both connected to a hob piece, the cutter plate is rotatably connected to the mounting cylinder, the first mounting assembly and the second mounting assembly are both arranged on the mounting cylinder, the first mounting assembly and the second mounting assembly are staggered, the cutter plate is uniformly distributed with a plurality of mounting grooves along the circumference of the axis of the mounting cylinder, the mounting grooves can accommodate the hob piece, the first mounting assembly is used to drive the hob piece on the first mounting assembly to be located at the mounting groove, the second mounting assembly is used to drive the hob piece on the second mounting assembly to be located at the mounting groove, the driving assembly is connected to the mounting cylinder, and the driving assembly is used to drive the mounting cylinder to rotate.

[0007] By adopting the above technical solution, in the initial state, the first mounting assembly installs the hob cutter member into the mounting groove. When replacing the hob cutter member, the first mounting assembly is started, and the first mounting assembly withdraws the hob cutter member from the mounting groove. The driving assembly is started, and the driving assembly drives the mounting cylinder to rotate. When the mounting cylinder rotates, it drives the second mounting assembly to rotate. The second mounting assembly drives the hob cutter member located on the second mounting assembly into the mounting groove until the hob cutter member is located in the mounting groove and protrudes from the surface of the knife plate, so that the hob cutter disc can be replaced in time. When the hob cutter member is worn, the hob cutter member is replaced in time, and the replaced hob cutter member is inspected. The hob cutter member reduces the overall loss rate of the hob cutter disc.

[0008] Optionally, the first mounting assembly includes a plurality of first mounting rods and a first drive, the plurality of first mounting rods are circumferentially evenly distributed on the circumference of the mounting cylinder, the hob piece is detachably connected to the first mounting rod, a plurality of sliding grooves are circumferentially evenly distributed on the mounting cylinder, a first sliding block is provided at one end of the first mounting rod close to 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 approach or move away from the knife plate along the sliding groove, the first drive is connected to the first sliding block, and the first drive is used to drive the first sliding block to approach or move away from the knife plate.

[0009] By adopting the above technical solution, the first drive drives the first sliding block to push the first mounting rod, and the first mounting rod is close to the mounting cylinder to install the hob cutter piece on the cutter plate. The hob cutter piece is detachably connected to the first mounting rod, which is convenient for replacing the hob cutter piece.

[0010] Optionally, the second mounting assembly includes a plurality of second mounting rods and a second drive, the plurality of second mounting rods are circumferentially distributed on the circumferential side of the mounting cylinder, the second mounting rods and the first mounting rods are staggered, the hob member is detachably connected to the second mounting rod, and a second sliding block is provided at one end of the second mounting rod close to 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 approach or move away from the knife plate along the sliding groove, the second drive is connected to the second sliding block, and the second drive is used to drive the second sliding block to approach or move away from the knife plate.

[0011] By adopting the above technical solution, when the hob cutter part needs to be replaced, the hob cutter part on the first mounting assembly is taken out, the drive assembly is started, the drive assembly moves the second mounting assembly to the mounting groove, the second drive drives the second sliding block to push the second mounting rod, and the second mounting rod approaches the mounting cylinder to install the hob cutter part on the blade.

[0012] The cam is connected to the sliding block by the first connecting rod, and the cam is connected to the sliding block by the first connecting rod.

[0013] By adopting the above technical solution, the first lifting member drives the first extension plate to rise, and the first extension plate drives the first connecting ring and the first connecting rod to rise, thereby pushing the first sliding block, pushing the first mounting rod into the mounting groove, and 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 annular groove and the second annular groove. The connecting groove allows the first connecting rod to enter the first annular groove or the second annular groove when entering or leaving the mounting groove.

[0014] The cam is connected to the sliding block by the second lifting member, and the sliding block is connected to the sliding block by the second lifting member. The cam is connected to the sliding block by the second lifting member, and the sliding block is connected to the sliding block by the second lifting member. The cam is connected to the sliding block by the second lifting member, and the sliding direction of the second lifting member is the same as the rotation direction of the driving assembly. The second lifting member is used to drive the second extension plate to approach or move away from the knife plate.

[0015] By adopting the above technical solution, the second lifting member 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, pushing the second mounting rod into the mounting groove, and 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 annular groove and the fourth annular groove. The connecting groove allows the second connecting rod to enter the third annular groove or the fourth annular groove when entering or leaving the mounting groove.

[0016] Optionally, the driving assembly is rotatably connected to a support member at one end 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, and the sliding direction of the support member is the same as the rotation direction of the driving assembly.

[0017] By adopting the above technical solution, the support member is used to install the first lifting member and the second lifting member in the knife barrel, and can generate relative movement with the movement of the first mounting assembly and the second mounting assembly, so as to facilitate the replacement of the hob member.

[0018] Optionally, the driving assembly includes a driving rod and a driving member, the driving rod is clamped with the mounting cylinder, one end of the driving member is connected to the driving rod, and the other end is connected to the sealing plate, and the driving member is used to drive the driving rod to rotate.

[0019] By adopting the above technical solution, the driving member is started, the driving member drives the driving rod to rotate, and the driving rod drives the mounting cylinder to rotate. When the first mounting rod or the second mounting rod on the mounting cylinder is located in the mounting groove, it can drive the knife plate to rotate, thereby performing jacking.

[0020] Optionally, the support member includes a mounting plate and a plurality of support rods, the mounting plate is rotatably connected to the end of the driving rod away from the blade plate, a support ring groove is provided at the end of the mounting plate away from the blade plate, the plurality of support rods are slidably connected in the support ring groove, and the end of the support rod away from the support ring groove is slidably connected to the inner wall of the blade cylinder.

[0021] By adopting the above technical solution, when the first mounting assembly and the second mounting assembly rotate along the mounting cylinder, the mounting plate rotates under the action of the support rod, so as to facilitate supporting the first lifting member and the second lifting member.

[0022] Optionally, the first mounting rod has the same structure as the second mounting rod, and the first mounting rod includes a blocking strip and a mounting strip, the cross-section of the blocking strip is an equilateral trapezoid, the upper surface of the blocking strip is smaller than the lower surface of the blocking strip, and the mounting strip is arranged on the top of the blocking strip, and a mounting groove is provided on the mounting strip, and the mounting groove is used to install a hob part, and a fixing part is provided on the hob part, and the fixing part is used to fix the hob part in the mounting groove.

[0023] 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 barrel when limiting the hob cutter.

[0024] Optionally, the width of the mounting strip is equal to the width of the top of the blocking strip, and a first placement groove and a second placement groove are provided on the knife plate. The first placement groove and the second placement groove are connected, the first placement groove is used to place the mounting strip, and the second placement groove is used to place the blocking strip, and the cross-section of the second placement groove is the same as the cross-section of the blocking strip.

[0025] By adopting the above technical solution, the first placement groove and the second placement groove facilitate installation of the first mounting rod or the second mounting rod on the blade, and improve the sealing performance of the first mounting rod or the second mounting rod on the blade.

[0026] In summary, this application includes at least one of the following beneficial technical effects: By staggering the first mounting assembly and the second mounting assembly, and both the first mounting assembly and the second mounting assembly can independently mount the hob cutter piece, the first mounting assembly and the second mounting assembly enable the hob cutter piece to be both lifted and rotated during the replacement process, and the driving assembly rotates the mounting cylinder. When there is a hob cutter piece in the installation slot, the driving assembly can drive the blade to rotate. When there is no hob cutter piece in the installation slot, the driving assembly drives the first mounting assembly or the second mounting assembly to rotate, thereby facilitating timely replacement of the hob cutter disc and reducing the overall loss rate of the hob cutter disc. The second connecting ring and the first connecting ring are set to be coaxial but with different diameters, which makes it easy to fix the first mounting rod and the second mounting rod on the mounting tube at the same time, and can also drive the first mounting rod or the second mounting rod to rise and fall separately, making it easy to replace the hob part. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0028] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application; Figure 2 This is a schematic diagram of the overall structure of the hidden knife barrel in an embodiment of the present application; Figure 3 This is a schematic diagram of the overall structure of the hidden knife barrel from another perspective of an embodiment of the present application; Figure 4 is a partial three-dimensional cross-sectional view of an embodiment of the present application; Figure 5 is a partial three-dimensional cross-sectional view of an embodiment of the present application; Figure 6 This is a schematic structural diagram of the first installation component and the second installation component of an embodiment of the present application; Figure 7 is a structural schematic diagram of the first installation component and the second installation component from another perspective of an embodiment of the present application; Figure 8 is a structural schematic diagram of the first installation component and the second installation component from another perspective of an embodiment of the present application; Figure 9 It is a structural schematic diagram of the first installation component and the second installation component from another perspective of an embodiment of the present application.

[0029] Explanation of reference numerals: 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. blocking 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 member; 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 member; 4. Drive assembly; 41. Drive rod; 42. Drive member; 5. Hob member; 51. Fixing member; 6. Support member; 61. Mounting plate; 62. Support ring groove; 63. Support rod. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-9 This application is described in further detail.

[0031] The present application discloses a long-distance water tunnel mud water jacking cutter head, referring to Figure 1 、 Figure 2 and Figure 3A long-distance water supply tunnel mud water jacking cutter head includes a cutter barrel 1, a first mounting assembly 2, a second mounting assembly 3 and a driving assembly 4. The cutter barrel 1 is provided with openings at both ends. One end of the cutter barrel 1 is rotatably connected to a cutter plate 11 through a connection method of a slider slot, and a sealing plate 12 is welded to the other end. The first mounting assembly 2 and the second mounting assembly 3 are both arranged in the cutter barrel 1. The first mounting assembly 2 and the second mounting assembly 3 are both connected to a hob 5. The cutter plate 11 is rotatably connected to a mounting barrel 13. The first mounting assembly 2 and the second mounting assembly 3 are both It is arranged on the mounting cylinder 13, and the first mounting component 2 and the second mounting component 3 are arranged alternately. The knife plate 11 has a plurality of mounting grooves 111 evenly distributed along the circumference of the axis of the mounting cylinder 13. The mounting grooves 111 can accommodate the hob piece 5. The first mounting component 2 is used to drive the hob piece 5 on the first mounting component 2 to be located at the mounting groove 111. The second mounting component 3 is used to drive the hob piece 5 on the second mounting component 3 to be located at the mounting groove 111. The driving component 4 is connected to the mounting cylinder 13, and the driving component 4 is used to drive the mounting cylinder 13 to rotate.

[0032] Reference Figure 4 、 Figure 5 and Figure 6 The first mounting assembly 2 includes multiple first mounting rods 21 and a first drive 23. In this embodiment, four first mounting rods 21 are provided, and the four first mounting rods 21 are evenly distributed circumferentially on the side of the mounting cylinder 13. The hob member 5 is detachably connected to the first mounting rod 21, and the mounting cylinder 13 is evenly distributed circumferentially with multiple sliding grooves 131. In this embodiment, there are eight sliding grooves 131. The end of the first mounting rod 21 close to the sliding groove 131 is provided with a first sliding block 22. 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 approach or move away from the knife plate 11 along the sliding groove 131. The first drive 23 is connected to the first sliding block 22. The first drive 23 is used to drive the first sliding block 22 to approach or move away from the knife plate 11.

[0033] Further, refer to Figure 5 、 Figure 6 and Figure 7 The second mounting assembly 3 includes a plurality of second mounting rods 31 and a second drive 33. The plurality of second mounting rods 31 are circumferentially evenly distributed around the mounting cylinder 13. In this embodiment, four second mounting rods 31 are provided, and the second mounting rods 31 are staggered with the first mounting rod 21. The hob member 5 is detachably connected to the second mounting rod 31. A second sliding block 32 is provided at one end of the second mounting rod 31 close to 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 approach or move away from the knife 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 to approach or move away from the knife plate 11.

[0034] Reference Figure 5 、 Figure 6 and Figure 7 The first mounting rod 21 has the same structure as the second mounting rod 31. The first mounting rod 21 includes a blocking strip 211 and a mounting strip 212. The cross-section of the blocking strip 211 is an equilateral trapezoid. The upper surface of the blocking strip 211 is smaller than the lower surface of the blocking strip 211. The mounting strip 212 is arranged on the top of the blocking strip 211. A mounting groove 213 is provided on the mounting strip 212. The mounting groove 213 is used to install the hob member 5. A fixing member 51 is provided on the hob member 5. The fixing member 51 is used to fix the hob member 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 a waist-shaped groove. The hob member 5 includes a knife strip and a plurality of hobs welded to the upper surface of the knife strip. The plurality of hobs are arranged at equal intervals. When installing the knife strip, the knife strip is inserted into the mounting groove 213 along the length direction of the mounting strip 212, and the knife strip is fixed using a fixing member 51. The fixing member 51 is six hexagon socket bolts. The fixing member 51 passes through the blocking strip 211, the mounting strip 212 and the knife strip in sequence from bottom to top, and is threadedly connected to the blocking strip 211, the mounting strip 212 and the knife strip, thereby fixing the knife strip on the first mounting rod 21.

[0035] 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 blocking strip 211. The knife plate 11 is provided with 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 blocking strip 211. The cross-section of the second placement groove 113 is the same as the cross-section of the blocking strip 211.

[0036] Specifically, refer to Figure 6-Figure 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. One first sliding block 22 corresponds to a first connecting rod 24. The first connecting ring 25 is provided at one end of the first connecting rod 24 away from the knife plate 11. The first connecting ring 25 is provided on the outer peripheral side 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 knife cylinder 1. The knife cylinder 1 is provided with a first annular groove 14, a second annular groove 15 and eight give way grooves 18. The first extension plate 26 is slidably connected to the first annular groove 14 and the second annular groove 15. The eight The give way grooves 18 are evenly distributed along the axial direction of the knife cylinder 1, and the give way grooves 18 are 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 through the give way grooves 18. The first lifting member 27 is provided at the end of the first extension plate 26 away from the knife 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 approach or away from the knife plate 11. The first extension plate 26 can slide along the first annular groove 14 or the second annular groove 15, and the sliding direction is the same as the rotation direction of the drive assembly 4.

[0037] Reference Figure 6-Figure 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 sliding block 32 corresponds to a second connecting rod 34. The second connecting ring 35 is provided at one end of the second connecting rod 34 away from the knife plate 11. The second connecting ring 35 is provided at one end of the second connecting rod 34 away from the knife plate 11. The second connecting ring 35 is coaxially arranged in 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 knife cylinder 1.

[0038] Reference Figure 4 The knife cylinder 1 is provided with a third annular groove 16 and a fourth annular groove 17, and the give way 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 give way groove 18. The second lifting member 37 is provided at the end of the second extension plate 36 away from the knife 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 close to or away from the knife 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.

[0039] Reference Figure 2 and Figure 3 The end of the drive assembly 4 away from the blade 11 is rotatably connected to the support member 6. 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 clamped to 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.

[0040] 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 driving rod 41 away from the blade 11 through a bearing. A support ring groove 62 is opened at the end of the mounting plate 61 away from the blade 11. The four support rods 63 are slidably connected to the support ring groove 62 through a slider groove. The end of the support rod 63 away from the support ring groove 62 is slidably connected to the inner side wall of the knife cylinder 1.

[0041] The implementation principle of the jacking cutter head of a long-distance water supply tunnel mud water jacking pipe in the embodiment of the present application is as follows: in the initial state, the first mounting assembly 2 installs the hob cutter 5 into the mounting groove 111. When replacing the hob cutter 5, the first lifting member 27 is started, and the first lifting member 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, and at the same time drives the first sliding block 22 and the first mounting rod 21 downward until the first mounting rod 21 drives the hob cutter 5 out of the mounting groove 111, and starts the driving member 42, and the driving member 42 drives the driving rod 41 to rotate until the second mounting assembly 3 is located at the mounting groove 111. Below the through slot 111, the second lifting member 37 is started, and the second lifting member 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 hob member 5 on the second mounting rod 31 enters the mounting through slot 111 and is fixed in the mounting through slot 111, which is convenient for timely replacement of the hob cutter disc and reduction of the overall loss rate of the hob cutter disc. When pushing forward, the driving member 42 is started, and the driving member 42 drives the driving rod 41 to rotate, and 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 knife plate 11, thereby pushing forward.

[0042] Unless otherwise defined, the technical or scientific terms used in this application shall have the usual meanings understood by persons of ordinary skill in the field to which this application belongs. The words "first", "second", "third" and similar terms used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "one" or "a" do not indicate a quantity limitation, but rather indicate the existence of at least one. Words such as "include" or "comprise" mean that the elements or objects appearing before "include" or "comprises" cover the elements or objects listed after "include" or "comprises" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0043] The above are all optional embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A long-distance water tunnel mud-water jacking cutterhead, characterized by: The invention comprises a knife barrel (1), a first mounting assembly (2), a second mounting assembly (3) and a driving assembly (4), wherein the knife barrel (1) is provided with openings at both ends, a knife plate (11) is provided at one end of the knife barrel (1), and a sealing plate (12) is provided at the other end, the knife plate (11) is rotatably connected to the knife barrel (1), the first mounting assembly (2) and the second mounting assembly (3) are both arranged in the knife barrel (1), the first mounting assembly (2) and the second mounting assembly (3) are both connected to a hob (5), a mounting barrel (13) is rotatably connected to the knife plate (11), and the first mounting assembly (2) and the second mounting assembly (3) are both arranged in the mounting barrel (13). The first mounting assembly (2) and the second mounting assembly (3) are arranged in an interlaced manner, the knife plate (11) is uniformly distributed with a plurality of mounting grooves (111) along the circumference of the axis of the mounting cylinder (13), the mounting grooves (111) can accommodate the hob member (5), the first mounting assembly (2) is used to drive the hob member (5) on the first mounting assembly (2) to be located at the mounting groove (111), the second mounting assembly (3) is used to drive the hob member (5) on the second mounting assembly (3) to be located at the mounting groove (111), the driving assembly (4) is connected to the mounting cylinder (13), and the driving assembly (4) is used to drive the mounting cylinder (13) to rotate.

2. The long-distance water tunnel mud-water jacking cutterhead according to claim 1, characterized in that: The first mounting assembly (2) includes a plurality of first mounting rods (21) and a first drive (23), wherein the plurality of first mounting rods (21) are uniformly distributed around the mounting cylinder (13), the hob (5) is detachably connected to the first mounting rod (21), and the mounting cylinder (13) is uniformly provided with a plurality of sliding grooves (131) around the mounting cylinder. A first sliding block (22) is provided at one end of the first mounting rod (21) close to 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 knife plate (11) along the sliding groove (131), the first drive (23) is connected to the first sliding block (22), and the first drive (23) is used to drive the first sliding block (22) to move closer to or away from the knife plate (11).

3. The long-distance water tunnel mud-water jacking cutterhead according to claim 2, characterized in that: The second mounting assembly (3) includes a plurality of second mounting rods (31) and a second drive (33), wherein the plurality of second mounting rods (31) are uniformly distributed around the mounting cylinder (13), the second mounting rods (31) and the first mounting rods (21) are staggered, the hob (5) and the second mounting rod (31) are detachably connected, a second sliding block (32) is provided at one end of the second mounting rod (31) close to 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 knife plate (11) along the sliding groove (131), the second drive (33) is connected to the second sliding block (32), and the second drive (33) is used to drive the second sliding block (32) to move closer to or away from the knife plate (11).

4. A long-distance water tunnel slurry pipe jacking cutterhead according to claim 3, characterized in that: 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 rod (24) is connected to the first sliding block (22). The first connecting rod (24) is provided with a plurality of first connecting rods (24). One first sliding block (22) is provided with a first connecting rod (24). The first connecting ring (25) is provided at one end of the first connecting rod (24) away from the knife plate (11). The first connecting ring (25) is provided on the outer peripheral side 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 knife cylinder (1). The knife cylinder (1) is provided with a first annular groove (14), a second annular groove (15) and a plurality of clearance grooves (18). The first extension plate ( The knife barrel (1) is provided with a plurality of paving grooves (18) which are uniformly distributed along the axial direction of the knife barrel (1). The paving grooves (18) are used to connect the first paving groove (14) and the second paving groove (15). The first extension plate (26) can enter the second paving groove (15) along the first paving groove (14) via the paving groove (18). The first lifting member (27) is provided at one end of the first extension plate (26) away from the knife 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 driving assembly (4). The sliding direction of the first lifting member (27) is the same as the rotation direction of the driving assembly (4). The first lifting member (27) is used to drive the first extension plate (26) to approach or move away from the knife plate (11).

5. The long-distance water tunnel mud-water jacking cutterhead according to claim 4, characterized in that: 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 multiple second connecting rods (34). One second sliding block (32) is correspondingly provided with a second connecting rod (34). The second connecting ring (35) is provided at one end of the second connecting rod (34) away from the knife plate (11). The second connecting ring (35) is coaxially provided in 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 knife cylinder (1). The knife cylinder (1) is provided with a third ring groove. (16) and the 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 one end of the second extension plate (36) away from the knife 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 driving assembly (4), the sliding direction of the second lifting member (37) is the same as the rotation direction of the driving assembly (4), and the second lifting member (37) is used to drive the second extension plate (36) to approach or move away from the knife plate (11).

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

7. The long-distance water tunnel mud-water jacking cutterhead according to claim 6, characterized in that: The driving assembly (4) comprises a driving rod (41) and a driving member (42). The driving rod (41) is clamped with the mounting cylinder (13). One end of the driving member (42) is connected to the driving rod (41) and the other end is connected to the sealing plate (12). The driving member (42) is used to drive the driving rod (41) to rotate.

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

9. The long-distance water tunnel slurry pipe jacking cutterhead according to claim 3, characterized in that: The first mounting rod (21) and the second mounting rod (31) have the same structure. The first mounting rod (21) includes a blocking strip (211) and a mounting strip (212). The blocking strip (211) has an equilateral trapezoidal cross section. The upper surface of the blocking strip (211) is smaller than the lower surface of the blocking strip (211). The mounting strip (212) is arranged on the top of the blocking strip (211). The mounting strip (212) is provided with a mounting groove (213). The mounting groove (213) is used to install the hob (5). The hob (5) is provided with a fixing piece (51). The fixing piece (51) is used to fix the hob (5) in the mounting groove (213).

10. The long-distance water tunnel slurry pipe jacking cutterhead according to claim 9, characterized in that: The width of the mounting strip (212) is equal to the width of the top of the blocking strip (211), and the knife plate (11) is provided with 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 blocking strip (211), and the cross section of the second placement groove (113) is the same as the cross section of the blocking strip (211).

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