Hole guiding device for Larsen steel sheet pile

Abstract

The invention discloses a Larsen steel sheet pile hole guiding device, and relates to the field of pipeline groove construction, the Larsen steel sheet pile hole guiding device comprises a base and a stand column fixedly connected to the base, the stand column is fixedly connected with a moving assembly, the moving assembly is provided with a chain, and the two ends of the chain can fall downwards; the moving assembly can adjust the heights of the two ends of a chain by driving the chain, the two ends of the chain are fixedly connected with a drilling assembly and a clamp used for clamping a steel sheet pile correspondingly, and a driving assembly is fixedly connected to the stand column and used for driving the steel sheet pile to vertically move. The device has the beneficial effects that the height of the drilling assembly is adjusted through the moving assembly, the drill bit assembly moves downwards to drill a hole in a foundation, the drill bit assembly is moved upwards through the moving assembly, the base is moved, and a steel sheet pile corresponds to a drill hole, is inserted into the drill hole through the moving assembly and is inserted into the drill hole through the dead weight of the steel sheet pile; and the piling efficiency and the construction quality are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline trench construction, and particularly relates to a leading hole device for Larssen sheet piles. Background Art

[0002] In some areas with relatively complex geological conditions, such as formations containing hard sandy soil, gravel layers or dense clay, it is difficult to directly drive sheet piles. Leading holes can pre-crush or loosen these hard soil layers, reduce the resistance when inserting sheet piles, enable the sheet piles to enter the predetermined position more smoothly, and improve construction efficiency.

[0003] During the construction process of Larssen sheet piles, leading hole drilling and pile driving are two important links. At present, most of the existing leading hole devices for Larssen sheet piles on the market have a single function and only have one of the functions of drilling or pile driving. If two operations of leading hole drilling and pile driving need to be completed, different equipment needs to be used, which not only increases the equipment input cost but also reduces the construction efficiency. In addition, during the operation of the existing leading hole drilling and pile driving equipment, it mostly relies on manual operation of machinery, and there are great difficulties in controlling the verticality of the equipment. For example, when manually controlling the machinery for pile driving and drilling, due to the instability of the operation and the lack of precise verticality control means, the verticality deviation of the leading hole drilling and the insertion of sheet piles is often large, affecting the overall water stop and support effects of the Larssen sheet piles. In severe cases, rework is required, increasing the construction cost and duration. In addition, when the lifting mechanism of the existing equipment drives the drill bit or sheet pile to move, the load is large, which not only increases the energy consumption but also reduces the service life of the lifting mechanism. Summary of the Invention

[0004] The purpose of the present invention is to provide a leading hole device for Larssen sheet piles to solve the above problems, as described in detail below.

[0005] To achieve the above purpose, the present invention provides the following technical solutions: A leading hole device for Larssen sheet piles provided by the present invention includes a base and a column fixedly connected to the base. A moving component is fixedly connected to the column. A chain is arranged on the moving component, and both ends of the chain can droop downward. The moving component can adjust the height of both ends of the chain by driving the chain. Drill components and a clamp for clamping sheet piles are respectively fixedly connected to both ends of the chain. A driving component is fixedly connected to the column for driving the sheet pile to move vertically.

[0006] With the above-mentioned leading hole device for Larssen sheet piles, the base can move. The drill components and the sheet piles are respectively arranged on both sides of the column. The drill components and the sheet piles and the clamp can reduce the weight difference at both ends of the chain, thereby reducing the load on the moving component. Adjust the height of the drilling component by moving the component. The drill bit component moves downward, and the fixture and the steel sheet pile move upward. Drill a hole in the foundation through the drill bit component, and then move the drill bit component upward by the moving component. Move the base to align the steel sheet pile with the drilled hole. Insert the steel sheet pile into the drilled hole through the moving component. Insert the steel sheet pile into the drilled hole by relying on its own weight. If the steel sheet pile cannot be driven smoothly by its own weight, mechanical assistance can be used to press the steel sheet pile downward.

[0007] Preferably, the base includes a bottom plate. Two bottom plates are fixedly connected to the lower ends of the columns. Rollers are rotatably connected to both sides of the bottom plate. Diagonal support plates are fixedly connected obliquely between the bottom plate and the columns.

[0008] Preferably, fixing rings I are fixedly connected to both sides of the bottom plate. A pull rope is fixedly connected to the fixing ring I, and the other end of the pull rope is fixedly connected to a fixing ring II.

[0009] Preferably, the moving component includes a fixing frame. The fixing frame is fixedly connected to the upper end of the column. Rotating shafts I are rotatably connected to both sides of the fixing frame. Sprockets are fixedly connected to the rotating shafts I. A motor I is fixedly connected to the fixing frame, and the output shaft of the motor I is fixedly connected to the end of any one of the rotating shafts I. The chain is in transmission connection with the two sprockets.

[0010] Preferably, guide sleeves are fixedly connected to the upper side and both sides of the fixing frame. The guide sleeves are slidably connected to the chain.

[0011] Preferably, the drilling component includes a motor. The lower end of the chain is fixedly connected to the motor. The output shaft of the motor is fixedly connected to the upper end of the spiral drill rod.

[0012] Preferably, a cushion plate I is fixedly connected to the top of the motor. A cushion plate II is fixedly connected to the upper side of the fixture.

[0013] Preferably, a guiding component is fixedly connected to the column for vertically guiding the cushion plate I.

[0014] Preferably, the guiding component includes two L-shaped plates. The L-shaped plates are vertically fixedly connected to the column. Openings are formed on both sides of the cushion plate I, and the two openings are in clearance fit with the opposite surfaces of the two L-shaped plates respectively.

[0015] Preferably, the driving assembly includes a roller group. A first mounting plate and a second mounting plate are fixedly connected to the column. An electric push rod is fixedly connected to the first mounting plate. Roller groups are fixedly connected to both the movable end of the electric push rod and the second mounting plate. The two roller groups correspond to both sides of the steel sheet pile respectively. The roller group includes a fixed seat. Two second rotating shafts are rotatably connected to the fixed seat. A roller and a synchronous pulley are fixedly connected to the second rotating shaft. The two synchronous pulleys are connected by a synchronous belt. A second motor is fixedly connected to the fixed seat fixedly connected to the electric push rod. The output shaft of the second motor is fixedly connected to the end of any one of the second rotating shafts. A support rod is slidably connected to the first mounting plate. The end of the support rod is fixedly connected to the corresponding fixed seat.

[0016] The beneficial effects are as follows: 1. The height of the drilling assembly is adjusted by the moving assembly. The drill bit assembly moves downward to drill holes in the foundation. The drill bit assembly is moved upward by the moving assembly, and the base is moved so that the steel sheet pile corresponds to the drilled holes. The steel sheet pile is inserted into the drilled holes by the moving assembly, and the steel sheet pile is inserted into the drilled holes by its own weight, improving the pile driving efficiency and construction quality. 2. The drilling assembly and the steel sheet pile are respectively arranged on both sides of the column. The cooperation of the drilling assembly with the steel sheet pile and the fixture can reduce the weight difference at both ends of the chain, thereby reducing the load of the moving assembly and prolonging the service life of the moving assembly. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the present invention; Figure 2 It is a front structural schematic diagram of the present invention; Figure 3 It is a three-dimensional structural schematic diagram of the moving assembly of the present invention; Figure 4 It is a three-dimensional structural schematic diagram of the driving assembly of the present invention; Figure 5 It is a three-dimensional structural schematic diagram of the roller group of the present invention.

[0019] The description of the reference numerals is as follows: 1. Base; 2. Column; 3. Moving component; 4. Chain; 5. Fixture; 6. Sheet pile; 7. Driving component; 8. Drilling component; 9. Bottom plate; 10. Diagonal brace plate; 11. Roller; 12. First fixing ring; 13. Pulling rope; 14. Second fixing ring; 15. First backing plate; 16. Second backing plate; 17. Guiding component; 18. Motor; 19. Auger stem; 20. Fixing bracket; 21. First rotating shaft; 22. Sprocket; 23. First motor; 24. L-shaped plate; 25. Guiding sleeve; 26. First mounting plate; 27. Electric push rod; 28. Second mounting plate; 29. Roller group; 30. Second motor; 31. Fixed seat; 32. Second rotating shaft; 33. Roller; 34. Synchronous pulley; 35. Timing belt; 36. Support rod. Detailed implementation manner

[0020] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation manners obtained by those of ordinary skill in the art without creative efforts fall within the scope protected by the present invention.

[0021] See Figures 1 - 5 As shown, the present invention provides a hole-drilling device for a Larsen sheet pile, including a base 1 and a column 2 fixedly connected to the base 1. A moving component 3 is fixedly connected to the column 2. A chain 4 is arranged on the moving component 3, and both ends of the chain 4 can droop downward. The moving component 3 can adjust the height of both ends of the chain 4 by driving the chain 4. Drilling components 8 and fixtures 5 for clamping the sheet pile 6 are fixedly connected to both ends of the chain 4 respectively. A driving component 7 is fixedly connected to the column 2 for driving the sheet pile 6 to move vertically. The fixture 5 is hydraulically driven.

[0022] As an optional implementation manner, the base 1 includes a bottom plate 9. Two bottom plates 9 are fixedly connected to the lower end of the column 2. Rollers 11 are rotatably connected to both sides of the bottom plate 9. Diagonal brace plates 10 are fixedly connected obliquely between the bottom plate 9 and the column 2.

[0023] First fixing rings 12 are fixedly connected to both sides of the bottom plate 9. Pulling ropes 13 are fixedly connected to the first fixing rings 12. The other ends of the pulling ropes 13 are fixedly connected to second fixing rings 14. The pulling ropes 13 are straightened, and then positioning pins are inserted into the second fixing rings 14 to fix the second fixing rings 14, improving the stability of the base 1.

[0024] The moving component 3 includes a fixed frame 20, which is fixedly connected to the upper end of the column 2. One rotating shaft 21 is rotatably connected to each side of the fixed frame 20. A sprocket 22 is fixedly connected to the rotating shaft 21. A first motor 23 is fixedly connected to the fixed frame 20, and the output shaft of the first motor 23 is fixedly connected to the end of any one of the rotating shafts 21. The chain 4 is in transmission connection with the two sprockets 22; The first motor 23: adopts a double-output shaft servo motor, and the output shaft is connected to the rotating shaft 21 through a coupling to achieve precise control. The guide sleeve 25: is arranged on the fixed frame 20 and is made of a high molecular wear-resistant material to reduce the running resistance of the chain 4. The tensioning device: includes a tensioning wheel and a spring, which automatically adjusts the tension of the chain 4 to ensure smooth transmission.

[0025] The first motor 23 drives the sprocket 22 to rotate, and the chain 4 can be moved through the sprocket 22.

[0026] Guide sleeves 25 are fixedly connected to the upper side and both sides of the fixed frame 20. The guide sleeves 25 are in sliding connection with the chain 4. By guiding the chain 4 through the guide sleeves 25, the chain 4 can be prevented from disengaging from the sprocket 22.

[0027] The drilling component 8 includes a motor 18. The lower end of the chain 4 is fixedly connected to the motor 18. The output shaft of the motor 18 is fixedly connected to the upper end of the spiral drill rod 19. The motor 18 can drill holes in the foundation through the spiral drill rod 19.

[0028] A first backing plate 15 is fixedly connected to the top of the motor 18, and a second backing plate 16 is fixedly connected to the upper side of the fixture 5. When the chain 4 is slack, it means that the spiral drill rod 19 or the steel sheet pile 6 cannot smoothly move into the foundation by its own weight. At that time, the first backing plate 15 or the second backing plate 16 can be mechanically pressed. The setting of the first backing plate 15 or the second backing plate 16 can prevent the machine from directly contacting the motor 18 or the fixture 5 and causing damage to them.

[0029] A guiding component 17 is fixedly connected to the column 2 for vertically guiding the first backing plate 15; A verticality control system is added to the column 2: Laser locator: installed on the top of the column 2 to emit a vertical reference line. Photoelectric sensors: respectively arranged on the first backing plate 15 and the second backing plate 16, and cooperate with the laser locator 40 to detect offsets. Inclinometer: installed on the fixture 5 to monitor the inclination angle of the steel sheet pile 6 in real time. Controller: adopts a PLC control system, receives sensor data and controls the first motor 23 and the electric push rod 27 for deviation correction. Control panel: arranged on the side of the column 2 and adopts a touch screen human-machine interface. Depth sensor: installed on the drilling component 8 to monitor the drilling depth in real time. Pressure sensor: arranged on the fixture 5 to monitor the clamping force of the steel sheet pile 6. Automatic lubrication system: includes a lubricating oil pump and oil pipes, and lubricates the chain 4 and the sprockets 22 regularly.

[0030] The guide assembly 17 includes two L-shaped plates 24, which are vertically fixed to the column 2. Openings are provided on both sides of the pad 15, and the two openings are respectively matched with the gaps between the opposite surfaces of the two L-shaped plates 24. The openings and the L-shaped plates 24 can limit the pad 15 so that the pad 15 can move along the length direction of the L-shaped plate 24.

[0031] The driving assembly 7 includes a roller group 29, a mounting plate 1 26 and a mounting plate 2 28 are fixedly connected to the column 2, an electric push rod 27 is fixedly connected to the mounting plate 1 26, and the movable end of the electric push rod 27 and the mounting plate 2 28 are fixedly connected with the roller group 29, and the two roller groups 29 correspond to the two sides of the steel sheet pile 6 respectively, and the roller group 29 includes a fixed seat 31, and the fixed seat 31 is rotatably connected to two rotating shafts 2 32, and the rotating shaft 2 32 is fixedly connected to a roller 33 and a synchronous wheel 34, and the two synchronous wheels 34 are connected by a synchronous belt 35. A motor 2 30 is fixedly connected to the fixed seat 31 fixedly connected to the electric push rod 27, and the output shaft of the motor 2 30 is fixedly connected to any end of the rotating shaft 2 32, and a support rod 36 is slidably connected to the mounting plate 1 26, and the end of the support rod 36 is fixedly connected to the corresponding fixed seat 31.

[0032] The driving assembly 7 has two functions, one is to move the steel sheet pile upward to the clamp 5 so that the clamp 5 can fix the steel sheet pile, and the other is to move the steel sheet pile downward to increase the pile driving speed.

[0033] With the above structure, the base 1 can be moved, and the drilling assembly 8 and the steel sheet pile 6 are respectively arranged on both sides of the column 2. The drilling assembly 8, the steel sheet pile 6 and the clamp 5 can reduce the weight difference between the two ends of the chain 4, thereby reducing the load of the moving assembly 3; The height of the drilling assembly 8 is adjusted by the moving assembly 3, the drill assembly 8 moves downward, the clamp 5 and the steel sheet pile 6 move upward, and a hole is drilled in the foundation by the drill assembly 8. The drill assembly 8 is then moved upward by the moving assembly 3, and the base 1 is moved to make the steel sheet pile 6 correspond to the drill hole. The steel sheet pile 6 is inserted into the drill hole by the moving assembly 3, and the steel sheet pile 6 is inserted into the drill hole by its own weight. If the steel sheet pile 6 is not smoothly driven by its own weight, mechanical assistance can be used to press the steel sheet pile 6 downward.

[0034] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A leading hole device for Larssen steel sheet piles, characterized in that: It includes a base (1) and a column (2) fixedly connected to the base (1). A moving component (3) is fixedly connected to the column (2). A chain (4) is arranged on the moving component (3), and both ends of the chain (4) can droop downward. The moving component (3) can adjust the height of both ends of the chain (4) by driving the chain (4). Drilling components (8) and a fixture (5) for clamping a steel sheet pile (6) are fixedly connected to both ends of the chain (4) respectively. A driving component (7) is fixedly connected to the column (2) for driving the steel sheet pile (6) to move vertically.

2. The lapped sheet pile hole-drilling device according to claim 1, wherein: The base (1) includes a bottom plate (9). Two bottom plates (9) are fixedly connected to the lower end of the column (2). Rollers (11) are rotatably connected to both sides of the bottom plate (9). An inclined support plate (10) is fixedly connected obliquely between the bottom plate (9) and the column (2).

3. The a Larssen steel sheet pile hole-leading device according to claim 2, characterized in that: Fixed rings one (12) are fixedly connected to both sides of the bottom plate (9). A pull rope (13) is fixedly connected to the fixed ring one (12). The other end of the pull rope (13) is fixedly connected to a fixed ring two (14).

4. The lapped sheet pile hole guiding device according to claim 1, wherein: The moving component (3) includes a fixed frame (20). The fixed frame (20) is fixedly connected to the upper end of the column (2). Shafts one (21) are rotatably connected to both sides of the fixed frame (20). Sprockets (22) are fixedly connected to the shafts one (21). A motor one (23) is fixedly connected to the fixed frame (20), and the output shaft of the motor one (23) is fixedly connected to the end of any one of the shafts one (21). The chain (4) is in transmission connection with the two sprockets (22).

5. The lapped sheet pile hole-drilling device according to claim 4, characterized in that: Guide sleeves (25) are fixedly connected to the upper side and both sides of the fixed frame (20). The guide sleeves (25) are in sliding connection with the chain (4).

6. The a Larssen steel sheet pile hole-drilling device according to claim 1, characterized in that: The drilling component (8) includes a motor (18). The lower end of the chain (4) is fixedly connected to the motor (18). The output shaft of the motor (18) is fixedly connected to the upper end of a spiral drill rod (19).

7. The lapped sheet pile hole-drilling device according to claim 6, wherein: A spacer plate one (15) is fixedly connected to the top of the motor (18). A spacer plate two (16) is fixedly connected to the upper side of the fixture (5).

8. The a Larssen steel sheet pile hole leading device according to claim 7, characterized in that: A guiding component (17) is fixedly connected to the column (2) for vertically guiding the spacer plate one (15).

9. The a Larssen steel sheet pile hole-drilling device according to claim 8, characterized in that: The guiding component (17) includes two L-shaped plates (24). The L-shaped plates (24) are vertically fixedly connected to the column (2). Openings are formed on both sides of the spacer plate one (15), and the two openings are in clearance fit with the opposite surfaces of the two L-shaped plates (24) respectively.

10. The larsen steel sheet pile hole-leading device according to claim 1, characterized in that: The driving assembly (7) includes a roller group (29). A first mounting plate (26) and a second mounting plate (28) are fixedly connected to the column (2). An electric push rod (27) is fixedly connected to the first mounting plate (26). Roller groups (29) are fixedly connected to both the movable end of the electric push rod (27) and the second mounting plate (28). The two roller groups (29) correspond to both sides of the steel sheet pile (6) respectively. The roller group (29) includes a fixed seat (31). Two second rotating shafts (32) are rotatably connected to the fixed seat (31). A roller (33) and a synchronous pulley (34) are fixedly connected to the second rotating shaft (32). The two synchronous pulleys (34) are connected by a synchronous belt (35). A second motor (30) is fixedly connected to the fixed seat (31) fixedly connected to the electric push rod (27). The output shaft of the second motor (30) is fixedly connected to the end of any one of the second rotating shafts (32). A support rod (36) is slidably connected to the first mounting plate (26). The end of the support rod (36) is fixedly connected to the corresponding fixed seat (31).

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