A trenching device for large-span multi-pipeline underground diaphragm wall

Abstract

This invention relates to a large-span, multi-pipeline diaphragm wall excavation device in the field of diaphragm wall excavation technology. The device includes a mounting frame with multiple driving wheels, multiple power arms, and multiple support arms. An adjustment structure is provided on the mounting frame, and a transmission structure is mounted on the power arms. A digging structure is located at the lower ends of the power arms and support arms, and the digging structure includes multiple excavator chains connected to the transmission structure. The multiple driving wheels on the mounting frame facilitate movement of the device on the road surface. The multiple power arms and support arms support the digging structure, while the spacing between the power arms and support arms avoids underground pipelines. The multiple excavator chains improve excavation efficiency.

Description

Technical Field

[0001] This invention relates to the field of underground diaphragm wall excavation technology, and in particular to a device for excavating trenches for large-span multi-pipeline underground diaphragm walls. Background Technology

[0002] With the development and construction of underground space, subway construction has been developing rapidly, but it has also encountered a more complex urban underground environment. Subway construction is often affected by underground pipelines, especially during the construction of diaphragm walls. Encountering important culverts or pipelines that are difficult to relocate due to complex underground environments has caused construction difficulties. Therefore, how to carry out diaphragm wall construction safely and conveniently at pipeline locations has become an urgent problem to be solved.

[0003] Therefore, in order to address the above problems, a trenching device for excavating trenches for large-span multi-pipeline underground diaphragm walls is proposed to solve these problems. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention develops a trenching device for excavating underground diaphragm walls with large spans and multiple pipelines. This invention can excavate trenches across underground pipelines.

[0005] The technical solution of this invention to solve the technical problem is as follows: a trenching device for excavating trenches for underground diaphragm walls with large spans and multiple pipelines, including a mounting frame, multiple driving wheels on the mounting frame, multiple power arms and multiple support arms on the mounting frame, an adjustment structure on the mounting frame, a transmission structure on the power arms, and a trenching structure at the lower ends of the multiple power arms and multiple support arms. The trenching structure includes multiple excavator chains, and the excavator chains are connected to the transmission structure.

[0006] The mounting frame is equipped with multiple driving wheels to facilitate the movement of the device on the road surface. Multiple power arms and multiple support arms support the trenching structure. At the same time, the spacing between the power arms and support arms avoids underground pipelines, and multiple excavator chains improve the excavation efficiency.

[0007] Preferably, the adjustment structure includes a rack, an adjusting gear, a driving gear, a driven gear, a first mounting shaft, and a second mounting shaft. Racks are symmetrically arranged on both sides of the power arm and the support arm, and the racks mesh with the adjusting gears. A first mounting shaft and a second mounting shaft are arranged on both sides of the power arm and the support arm. The adjusting gears on both sides of the power arm are respectively arranged on the first mounting shaft and the second mounting shaft. The adjusting gears on both sides of the support arm are respectively arranged on the first mounting shaft and the second mounting shaft. Driving gears are symmetrically arranged on the first mounting shaft, and driven gears are symmetrically arranged on the second mounting shaft. The driving gear and the driven gear mesh with each other.

[0008] The rack and pinion drive the support arm, power arm, and trenching structure up and down by rotating the adjustment gear, thus achieving trenching.

[0009] Preferably, the adjustment structure further includes a first mounting wheel, a first transmission belt, a first mounting plate, a second mounting plate, a first motor, and a second mounting wheel. The first mounting plate and the second mounting plate are arranged on the mounting frame, with the first mounting plate and the second mounting plate arranged opposite to each other. The first motor is arranged on the first mounting plate, and the first motor is equipped with multiple first mounting wheels. The multiple first mounting wheels are coaxially arranged on the second mounting plate. A first transmission belt is arranged between the first mounting wheel and the second mounting wheel. The second mounting wheel is arranged on a first mounting shaft, and both ends of the first mounting shaft are respectively arranged on the first mounting plate and the second mounting plate.

[0010] The first motor is mounted on the first mounting plate. The first motor drives multiple first transmission belts to move, thereby causing the adjusting gear to rotate and changing the height of the mounting frame.

[0011] Preferably, the transmission structure includes a second motor, a second transmission belt, a first transmission wheel, and a second transmission wheel. The second motor is disposed between the power arms and mounted on the power arms. The first transmission wheel is mounted on the second motor. The first transmission wheel is fitted with the second transmission belt, which is then fitted with the second transmission wheel. The second transmission wheel is connected to the trenching structure.

[0012] The second motor drives the first transmission wheel to rotate, which in turn drives the second transmission belt to rotate, thus providing power.

[0013] Preferably, the trenching structure includes a support shaft, a mounting platform, a positioning hole, a connecting shaft, a buckle, and a mounting bearing. The lower end of the support arm is provided with a mounting platform, which is rotatably connected to the support arm via the connecting shaft. The lower end of the support arm is provided with a buckle connected to the mounting platform. A positioning hole is formed between the mounting platform and the support arm. A mounting bearing is provided in the positioning hole, and the support shaft is provided on the mounting bearing.

[0014] By setting up clips, the support arm can be fixed and disassembled with the mounting platform. When encountering multiple underground pipelines, the mounting bearing and support shaft can be disassembled to allow the support arm to detach from the equipment and bypass the underground pipelines.

[0015] As a preferred embodiment, the trenching structure also includes mounting holes, fixed bearings, and a main shaft. The lower end of the power arm is provided with mounting holes, a fixed bearing is installed in the mounting holes, the main shaft is installed on the fixed bearing, and a second transmission wheel is installed on the main shaft.

[0016] By setting mounting holes and a main shaft, the trenching structure is prevented from detaching from the power arm.

[0017] Preferably, the trenching structure also includes a first rotating disk and a second rotating disk. The first rotating disk is symmetrically arranged on the main shaft and is located outside the power arm. An excavator chain is arranged on the first rotating disk, and the side of the excavator chain away from the first rotating disk is sleeved on the second rotating disk. The second rotating disk is symmetrically arranged on the support shaft and is located outside the support arm.

[0018] Two excavator chains are installed on a first and second rotating disc arranged symmetrically to achieve rapid trenching.

[0019] Preferably, the trenching structure further includes a first right-angle commutator, an auxiliary commutator, a second right-angle commutator, a first drive shaft, a second drive shaft, a first spiral digger, and a second spiral digger. The first right-angle commutator and the second right-angle commutator are mounted on the main shaft, and the first right-angle commutator and the second right-angle commutator rotate in opposite directions. The first right-angle commutator is connected to the first drive shaft, and the second right-angle commutator is connected to the second drive shaft. The first spiral digger is mounted on the first drive shaft, and the second spiral digger is mounted on the second drive shaft. The first spiral digger and the second spiral digger rotate in opposite directions. Auxiliary commutators are symmetrically arranged on the support shaft, and both the first drive shaft and the second drive shaft are mounted on the auxiliary commutators.

[0020] By setting up a first spiral excavator and a second spiral excavator, the trenching speed is increased. The first spiral excavator and the second spiral excavator rotate in opposite directions, so that the excavated soil moves upward between the first spiral excavator and the second spiral excavator simultaneously, reducing interference in soil movement.

[0021] The effects described in the invention are merely those of the embodiments, and not all the effects of the invention. The above technical solutions have the following advantages or beneficial effects:

[0022] The mounting frame is equipped with multiple driving wheels to facilitate the movement of the device on the road surface. Multiple power arms and multiple support arms support the trenching structure. The rack and pinion and the adjusting gear mesh to drive the support arms, power arms and trenching structure to move up and down by adjusting the rotation of the gear, thus realizing trenching.

[0023] By setting a buckle, the support arm can be fixed and disassembled with the mounting platform. When encountering multiple underground pipelines, the mounting bearing and support shaft can be disassembled to allow the support arm to detach from the equipment and bypass the underground pipelines.

[0024] By setting up a first spiral excavator and a second spiral excavator, the trenching speed is increased. The first spiral excavator and the second spiral excavator rotate in opposite directions, so that the excavated soil moves upward between the first spiral excavator and the second spiral excavator simultaneously, reducing interference in soil movement. Attached Figure Description

[0025] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0026] Figure 1 This is a schematic diagram of the structure of the present invention.

[0027] Figure 2 This is a schematic diagram of the lower end structure of the support arm of the present invention.

[0028] Figure 3 This is a schematic diagram of the disassembly of the lower end of the support arm of the present invention.

[0029] Figure 4 This is a schematic diagram of the power arm structure of the present invention.

[0030] Figure 5 This is a schematic diagram of the structure of the adjusting gear in this invention.

[0031] Figure 6 This is a schematic diagram of the trench structure of the present invention.

[0032] Figure 7 This is a schematic diagram of the trenching process of the present invention.

[0033] In the diagram, 1. Mounting frame; 2. Driver wheel; 3. Power boom; 4. Support boom; 5. Excavator chain; 6. Rack; 7. Adjusting gear; 8. Drive gear; 9. Driven gear; 10. First mounting shaft; 11. Second mounting shaft; 12. First mounting wheel; 13. First transmission belt; 14. First mounting plate; 15. Second mounting plate; 16. First motor; 17. Second mounting wheel; 18. Second motor; 19. Second transmission belt; 20. First transmission wheel. 21. Second drive wheel; 22. Support shaft; 23. Mounting platform; 24. Positioning hole; 25. Connecting shaft; 26. Snap fastener; 27. Mounting bearing; 28. Mounting hole; 29. ​​Fixed bearing; 30. Main shaft; 31. First rotating disk; 32. Second rotating disk; 33. First right-angle commutator; 34. Auxiliary commutator; 35. Second right-angle commutator; 36. First drive shaft; 37. Second drive shaft; 38. First auger; 39. Second auger. Detailed Implementation

[0034] To clearly illustrate the technical features of this solution, the invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings. The following disclosure provides many different embodiments or examples for implementing different structures of the invention. To simplify the disclosure of the invention, components and arrangements of specific examples are described below. Furthermore, reference numerals and / or letters may be repeated in different examples. This repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. It should be noted that the components illustrated in the drawings are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and processes are omitted to avoid unnecessarily limiting the invention. Terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0035] like Figures 1 to 7 As shown, a large-span multi-pipeline underground diaphragm wall excavation device includes a mounting frame 1, multiple driving wheels 2 mounted on the mounting frame 1, multiple power arms 3 and multiple support arms 4 mounted on the mounting frame 1, an adjustment structure mounted on the mounting frame 1, a transmission structure mounted on the power arms 3, and a digging structure mounted at the lower ends of the multiple power arms 3 and multiple support arms 4. The digging structure includes multiple excavator chains 5, which are connected to the transmission structure. The multiple driving wheels 2 on the mounting frame 1 facilitate the movement of the device on the road surface. The multiple power arms 3 and multiple support arms 4 support the digging structure, while the spacing between the power arms 3 and support arms 4 avoids underground pipelines. The multiple excavator chains 5 improve the digging efficiency.

[0036] The adjustment structure includes a rack 6, an adjusting gear 7, a driving gear 8, a driven gear 9, a first mounting shaft 10, and a second mounting shaft 11. Racks 6 are symmetrically arranged on both sides of the power arm 3 and the support arm 4, meshing with the adjusting gears 7. The first mounting shaft 10 and the second mounting shaft 11 are located on both sides of the power arm 3 and the support arm 4, respectively. The adjusting gears 7 on both sides of the power arm 3 and the support arm 4 are respectively mounted on the first mounting shaft 10 and the second mounting shaft 11. Driving gears 8 are symmetrically arranged on the first mounting shaft 10, and driven gears 9 are symmetrically arranged on the second mounting shaft 11, meshing with each other. The rack 6 and the adjusting gear 7 engage to drive the support arm 4, the power arm 3, and the trenching structure, causing them to move up and down, thus achieving trenching.

[0037] The adjustment structure also includes a first mounting wheel 12, a first transmission belt 13, a first mounting plate 14, a second mounting plate 15, a first motor 16, and a second mounting wheel 17. The first mounting plate 14 and the second mounting plate 15 are mounted on the mounting frame 1, and are positioned opposite each other. The first motor 16 is mounted on the first mounting plate 14, and the first motor 16 has multiple first mounting wheels 12 mounted on it. These multiple first mounting wheels 12 are coaxially mounted on the second mounting plate 15. A first transmission belt 13 is positioned between the first mounting wheels 12 and the second mounting wheel 17. The second mounting wheel 17 is mounted on a first mounting shaft 10, with both ends of the first mounting shaft 10 mounted on the first mounting plate 14 and the second mounting plate 15, respectively. The two ends of the second mounting shaft 11 are also mounted on the first mounting plate 14 and the second mounting plate 15, respectively. The first motor 16 is mounted on the first mounting plate 14, and drives the multiple first transmission belts 13 to rotate, thereby rotating the adjusting gear 7 and changing the height of the mounting frame 1.

[0038] The transmission structure includes a second motor 18, a second transmission belt 19, a first transmission pulley 20, and a second transmission pulley 21. The second motor 18 is positioned between the power arms 3 and is mounted on them. The first transmission pulley 20 is mounted on the second motor 18, and the second transmission belt 19 is fitted onto the first transmission pulley 20. The second transmission belt 19 is fitted onto the second transmission pulley 21, which is connected to the trenching structure. The second motor 18 drives the first transmission pulley 20 to rotate, thereby driving the second transmission belt 19 to rotate, thus providing power.

[0039] The trenching structure includes a support shaft 22, a mounting platform 23, a positioning hole 24, a connecting shaft 25, a buckle 26, and a mounting bearing 27. The mounting platform 23 is located at the lower end of the support arm 4, and is rotatably connected to the support arm 4 via the connecting shaft 25. The buckle 26 at the lower end of the support arm 4 connects to the mounting platform 23. A positioning hole 24 is formed between the mounting platform 23 and the support arm 4, and the mounting bearing 27 is installed within the positioning hole 24. The support shaft 22 is mounted on the mounting bearing 27. The buckle 26 allows for fixing and disassembling of the support arm 4 and the mounting platform 23. When encountering multiple underground pipelines, the mounting bearing 27 and the support shaft 22 are disassembled, allowing the support arm 4 to detach from the equipment and bypass the underground pipelines.

[0040] The trenching structure also includes a mounting hole 28, a fixed bearing 29, and a main shaft 30. The mounting hole 28 is located at the lower end of the power arm 3. The fixed bearing 29 is installed within the mounting hole 28, and the main shaft 30 is mounted on the fixed bearing 29. A second transmission wheel 21 is mounted on the main shaft 30. The mounting hole 28 and the main shaft 30 prevent the trenching structure from detaching from the power arm 3.

[0041] The trenching structure also includes a first rotating disk 31 and a second rotating disk 32. The first rotating disk 31 is symmetrically arranged on the main shaft 30, located outside the power arm 3. An excavator chain 5 is mounted on the first rotating disk 31, and the side of the excavator chain 5 furthest from the first rotating disk 31 is fitted onto the second rotating disk 32. The second rotating disk 32 is symmetrically arranged on the support shaft 22, located outside the support arm 4. By using the symmetrically arranged first and second rotating disks 31 and mounting two excavator chains 5, rapid trenching is achieved.

[0042] The trenching structure also includes a first right-angle commutator 33, an auxiliary commutator 34, a second right-angle commutator 35, a first drive shaft 36, a second drive shaft 37, a first spiral digger 38, and a second spiral digger 39. The first right-angle commutator 33 and the second right-angle commutator 35 are mounted on the main shaft 30. The first right-angle commutator 33 and the second right-angle commutator 35 rotate in opposite directions. The first right-angle commutator 33 is connected to the first drive shaft 36, and the second right-angle commutator 35 is connected to the second drive shaft 37. The first spiral digger 38 is mounted on the first drive shaft 36, and the second spiral digger 39 is mounted on the second drive shaft 37. The first spiral digger 38 and the second spiral digger 39 rotate in opposite directions. The auxiliary commutator 34 is symmetrically mounted on the support shaft 22. The first drive shaft 36 and the second drive shaft 37 are both mounted on the auxiliary commutator 34. By setting a first spiral excavator 38 and a second spiral excavator 39, the trenching speed is increased. The first spiral excavator 38 and the second spiral excavator 39 rotate in opposite directions, so that the excavated soil moves upward between the first spiral excavator 38 and the second spiral excavator 39 at the same time, reducing the interference of soil movement.

[0043] Working principle: Start the first motor 16, which drives the adjusting gear 7 to rotate. The adjusting gear 7 meshes with the rack 6, thereby driving the power arm 3 and the support arm 4 to move up and down, so that the trenching structure moves and trenching is achieved. When an underground pipeline is encountered, the buckle 26 is opened, so that the support arm 4 is disengaged from the device, bypasses the underground pipeline, and is then installed, thus achieving trenching around the underground pipeline.

[0044] Although the specific embodiments of the invention have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the invention. Based on the technical solutions of the invention, various modifications or variations that can be made by those skilled in the art without creative effort are still within the scope of protection of the invention.

Claims

1. A trenching device for excavating trenches for large-span multi-pipeline underground diaphragm walls, characterized in that: The device includes a mounting frame (1), on which multiple driving wheels (2) are provided, multiple power arms (3) and multiple support arms (4) are provided on the mounting frame (1), an adjustment structure is provided on the mounting frame (1), a transmission structure is provided on the power arms (3), and a grooving structure is provided at the lower ends of the multiple power arms (3) and multiple support arms (4). The grooving structure includes multiple excavator chains (5), and the excavator chains (5) are connected to the transmission structure. The trenching structure includes a support shaft (22), a mounting platform (23), a positioning hole (24), a connecting shaft (25), a buckle (26), and a mounting bearing (27). The lower end of the support arm (4) is provided with a mounting platform (23). The mounting platform (23) is rotatably connected to the support arm (4) through the connecting shaft (25). The lower end of the support arm (4) is provided with a buckle (26) connected to the mounting platform (23). A positioning hole (24) is formed between the mounting platform (23) and the support arm (4). The mounting bearing (27) is provided in the positioning hole (24). The mounting bearing (27) is provided with the support shaft (22).

2. The trenching device for excavating trenches for large-span multi-pipeline underground diaphragm walls according to claim 1, characterized in that: The adjustment structure includes a rack (6), an adjusting gear (7), a driving gear (8), a driven gear (9), a first mounting shaft (10), and a second mounting shaft (11). The power arm (3) and the support arm (4) are symmetrically provided with racks (6) on both sides. The racks (6) mesh with the adjusting gears (7). The power arm (3) and the support arm (4) are provided with a first mounting shaft (10) and a second mounting shaft (11) on both sides. The adjusting gears (7) on both sides of the power arm (3) are respectively provided on the first mounting shaft (10) and the second mounting shaft (11). The adjusting gears (7) on both sides of the support arm (4) are respectively provided on the first mounting shaft (10) and the second mounting shaft (11). The driving gears (8) are symmetrically provided on the first mounting shaft (10), and the driven gears (9) are symmetrically provided on the second mounting shaft (11). The driving gears (8) and the driven gears (9) mesh with each other.

3. The trenching device for excavating large-span multi-pipeline underground diaphragm walls according to claim 2, characterized in that: The adjustment structure further includes a first mounting wheel (12), a first transmission belt (13), a first mounting plate (14), a second mounting plate (15), a first motor (16), and a second mounting wheel (17). The mounting frame (1) is provided with a first mounting plate (14) and a second mounting plate (15). The first mounting plate (14) and the second mounting plate (15) are arranged opposite to each other. The first mounting plate (14) is provided with a first motor (16). The first motor (16) is provided with multiple first mounting wheels (12). The multiple first mounting wheels (12) are coaxially arranged on the second mounting plate (15). A first transmission belt (13) is provided between the first mounting wheels (12) and the second mounting wheel (17). The second mounting wheel (17) is arranged on a first mounting shaft (10). The two ends of the first mounting shaft (10) are respectively arranged on the first mounting plate (14) and the second mounting plate (15). The two ends of the second mounting shaft (11) are respectively arranged on the first mounting plate (14) and the second mounting plate (15).

4. The trenching device for excavating trenches for large-span multi-pipeline underground diaphragm walls according to claim 1, characterized in that: The transmission structure includes a second motor (18), a second transmission belt (19), a first transmission wheel (20), and a second transmission wheel (21). The second motor (18) is arranged between the power arms (3). The second motor (18) is mounted on the power arm (3). The first transmission wheel (20) is mounted on the second motor (18). The first transmission wheel (20) is fitted with the second transmission belt (19). The second transmission belt (19) is fitted with the second transmission wheel (21). The second transmission wheel (21) is connected to the trenching structure.

5. The trenching device for excavating large-span multi-pipeline underground diaphragm walls according to claim 1, characterized in that: The trenching structure also includes a mounting hole (28), a fixed bearing (29), and a main shaft (30). The lower end of the power arm (3) is provided with a mounting hole (28), a fixed bearing (29) is provided in the mounting hole (28), a main shaft (30) is provided in the fixed bearing (29), and a second transmission wheel (21) is provided on the main shaft (30).

6. The trenching device for excavating trenches for large-span multi-pipeline underground diaphragm walls according to claim 5, characterized in that: The trenching structure also includes a first rotating disk (31) and a second rotating disk (32). The first rotating disk (31) is symmetrically arranged on the main shaft (30). The first rotating disk (31) is located outside the power arm (3). The excavator chain (5) is arranged on the first rotating disk (31). The side of the excavator chain (5) away from the first rotating disk (31) is sleeved on the second rotating disk (32). The second rotating disk (32) is symmetrically arranged on the support shaft (22). The second rotating disk (32) is located outside the support arm (4).

7. The trenching device for excavating trenches for large-span multi-pipeline underground diaphragm walls according to claim 6, characterized in that: The trenching structure also includes a first right-angle commutator (33), an auxiliary commutator (34), a second right-angle commutator (35), a first drive shaft (36), a second drive shaft (37), a first spiral digging head (38), and a second spiral digging head (39). The first right-angle commutator (33) and the second right-angle commutator (35) are mounted on the main shaft (30). The first right-angle commutator (33) and the second right-angle commutator (35) rotate in opposite directions. The first right-angle commutator (33) is connected to the first drive shaft (36). The first drive shaft (36) is connected to the second drive shaft (37) via the second right-angle commutator (35). The first drive shaft (36) is provided with a first spiral digger (38), and the second drive shaft (37) is provided with a second spiral digger (39). The first spiral digger (38) and the second spiral digger (39) rotate in opposite directions. The support shaft (22) is symmetrically provided with auxiliary commutators (34). The first drive shaft (36) and the second drive shaft (37) are both provided on the auxiliary commutators (34).

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