A pile feeding and positioning device for pile foundation of a pile platform

Abstract

This utility model discloses a precise pile feeding and positioning device for foundation pipe piles of a stabilizing platform, belonging to the field of marine engineering equipment technology. The tail of the steel pipe pile capturing device is hinged to a front and rear distance indicator device. A horizontally rotating square steel bar is installed at the bottom of the front and rear distance indicator device, and this bar is inserted into the left and right distance indicator device. One end of the horizontally rotating square steel bar has a pin hole into which a rotating pin is inserted. The base is located at the bottom of the left and right distance indicator device, and the rotating pin is inserted into the base. The retrieval device includes a column and a retrieval rope. The column is fixed to the top of the left and right distance indicator device, and the retrieval rope passes through the top of the column. One end of the retrieval rope is fixed to the front and rear distance indicator device, and the other end is used for manual retrieval. This precise pile feeding and positioning device for foundation pipe piles of a stabilizing platform plays an auxiliary guiding role when the steel pipe pile is lowered. The "U"-shaped pile-catching fork at the front embraces the steel pipe pile, facilitating its capture.

Description

Technical Field

[0001] This utility model relates to the field of marine engineering equipment technology, specifically to a precise pile feeding and positioning device for foundation pipe piles of a stabilizing platform. Background Technology

[0002] During the pile driving construction of multi-pile jacket foundation steel pipe piles in offshore wind farms, a dedicated pile stabilization platform is required to ensure the root opening size, verticality, and azimuth of the four steel pipe piles. Typically, a main pile guide sleeve is installed at each of the four corners of the stabilization platform. The main pile sleeve has a funnel-shaped opening at the top as a guide during pile feeding. After the steel pipe pile enters the funnel, it automatically positions itself under the limiting effect of the funnel. The main pile guide sleeve is generally located at a depth of tens of meters underwater, making it impossible to accurately determine the position of the steel pipe pile visually during pile feeding. U-shaped guide grooves are usually installed at the four corners of the top of the stabilization platform to provide coarse positioning of the steel pipe pile. Theoretically, the ideal position for pile feeding is when the steel pipe pile is located at the exact center of the U-shaped groove.

[0003] After the foundation steel pipe piles are turned over, the main crane lifts the steel pipe piles and moves them into the U-shaped groove at the top of the pile stabilization platform. The crane operator observes the position of the steel pipe piles relative to the U-shaped groove, initially determining that the piles are roughly centered on the guide sleeve of the lower main pile. Then, the hook is lowered to complete the pile feeding. This process relies entirely on the operator's visual judgment, making the operator's personal ability and experience particularly important. If the operator's command is inadequate, the steel pipe piles may fall directly onto the flared end of the guide sleeve of the main pile, causing deformation or even damage to the flared end.

[0004] Therefore, it is necessary to design and develop a set of simple, low-cost, easy-to-operate, convenient-to-install, safe and reliable precision pile feeding and positioning tools to achieve precise positioning during safe, fast and efficient steel pipe pile feeding at sea, ensuring that the steel pipe pile is lowered basically along the center of the main pile guide sleeve below, which can greatly improve the accuracy, safety and efficiency of pile feeding. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a precise pile feeding and positioning device for the foundation pipe pile of a stable pile platform, which can play an auxiliary guiding role when the steel pipe pile is lowered.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a precise pile feeding and positioning device for a stabilizing platform foundation pipe pile, including a steel pipe pile capturing device, a front-to-back distance indicator device, a left-to-right distance indicator device, a base, and a retrieval device. The tail of the steel pipe pile capturing device is hinged to the front-to-back distance indicator device. A horizontally rotating square steel is provided at the bottom of the front-to-back distance indicator device. The horizontally rotating square steel is inserted into the left-to-right distance indicator device. A pin hole is provided at one end of the horizontally rotating square steel, and a rotating pin is inserted into the pin hole. The base is set at the bottom of the left-to-right distance indicator device, and the rotating pin is inserted into the base. The retrieval device includes a column and a retrieval rope. The column is fixed at the top of the left-to-right distance indicator device. The retrieval rope passes through the top of the column. One end of the retrieval rope is fixed to the front-to-back distance indicator device, and the other end is used for manual retrieval by pulling the rope.

[0007] Preferably, a fixed pulley is provided at the top of the column to facilitate the pulling of the rope during retrieval, and an anti-slip ring is provided at the top of the fixed pulley to prevent the rope from slipping.

[0008] Preferably, the steel pipe pile capturing device includes a "U"-shaped pile-locking fork, anti-collision rollers, and a connecting arm. The anti-collision rollers are provided on the inner side wall at the axis of the "U"-shaped pile-locking fork. The connecting arm is fixedly connected to the outer side of the "U"-shaped pile-locking fork and is correspondingly provided with the anti-collision rollers. One end of the rope for releasing and retracting is fixed to the connecting arm through an ear plate.

[0009] Preferably, anti-collision rubber strips are provided on the inner side wall of the "U"-shaped jack fork.

[0010] Preferably, the front and rear distance indication device includes a limiting base plate, an upper baffle, and an indication dial. One end of the limiting base plate and the upper baffle are fixed together at an angle of less than 90°. The indication dial has two parts, which are fixed on the two sides of the base plate and the upper baffle. Angle and distance values ​​are set on the surface of the indication dial.

[0011] Preferably, the left and right distance indication device includes a side limiting plate and a second indication dial. There are two side limiting plates, which are vertically arranged on the upper surface of the base. The second indication dial is horizontally arranged on the top of the side limiting plate. Angle and distance values ​​are set on the surface of the second indication dial. A rotating pin is set on the upper surface of the base. The rotating pin is inserted into the pin hole to fix the horizontally rotating square steel.

[0012] Preferably, the upper part of the position indicator dial is provided with a locking pin hole, and the lower part is provided with a rotating pin. The connecting arm is inserted between the two position indicator dials and rotates around the rotating pin. After the connecting arm is retracted, the pin is inserted into the locking pin hole to lock the connecting arm.

[0013] The following beneficial effects can be obtained by adopting the technical solution of this utility model:

[0014] This utility model's precision pile feeding and positioning device for the foundation pipe pile of the stabilizing platform plays an auxiliary guiding role during the lowering of the steel pipe pile. The "U"-shaped pile clamping fork at the front surrounds the steel pipe pile, facilitating its capture. The dial on the front-to-back distance indicator can display the offset of the steel pipe pile's front-to-back position in real time based on the rotation angle of the steel pipe pile capturing device. This number can be read directly from the dial, accurate to the millimeter. Similarly, the dial on the left-to-right distance indicator can display the offset of the steel pipe pile's left-to-right position in real time based on the rotation angle of the front-to-back distance indicator. This number can also be read directly from the dial, accurate to the millimeter. Attached Figure Description

[0015] The following is a brief explanation of the contents depicted in the accompanying drawings and the markings therein:

[0016] Figure 1 This is a schematic diagram of the structure of the auxiliary positioning device;

[0017] Figure 2 for Figure 1 Schematic diagram of the steel pipe pile capture device;

[0018] Figure 3 for Figure 1 Schematic diagram of the front-to-back distance positioning device;

[0019] Figure 4 for Figure 1 A schematic diagram of the left and right distance positioning device;

[0020] Figure 5 for Figure 1 Schematic diagram of the middle base;

[0021] Figure 6 for Figure 1 A schematic diagram of the structure of the central display dial 1;

[0022] Figure 7 for Figure 1 A schematic diagram of the structure of the second central display dial;

[0023] Figure 8 A schematic diagram of the stabilizing platform installed for this auxiliary positioning device;

[0024] The markings in the above figures are as follows: 1. Steel pipe pile capturing device; 2. Front and rear distance indicator; 3. Left and right distance indicator; 4. Base; 5. Retrieval device; 6. Horizontal rotating square steel; 7. Column; 8. Rope retraction and release; 9. Fixed pulley; 10. Return spring; 11. "U" shaped pile clamping fork; 12. Anti-collision roller; 13. Connecting arm; 14. Limiting base plate; 15. Upper baffle; 16. Position indicator dial one; 17. Side limiting plate; 18. Position indicator dial two; 19. Locking pin hole; 20. Rotating pin; 21. Pin hole. Detailed Implementation

[0025] The following description, with reference to the accompanying drawings, provides a more detailed explanation of the specific embodiments of this utility model, including the shape and structure of each component, the relative positions and connections between the parts, the functions and working principles of each part.

[0026] like Figure 1-8 As shown, the precise pile feeding and positioning device for the foundation pipe piles of this stabilizing platform includes a steel pipe pile capturing device 1, a front-to-back distance indicator device 2, a left-to-right distance indicator device 3, a base 4, and a retrieval device 5. The tail of the steel pipe pile capturing device 1 is hinged to the front-to-back distance indicator device 2. A horizontally rotating square steel 6 is set at the bottom of the front-to-back distance indicator device 2. The horizontally rotating square steel 6 is inserted into the left-to-right distance indicator device 3. A pin hole 21 is set at one end of the horizontally rotating square steel 6. A rotating pin 20 is inserted into the pin hole 21. The base 4 is set at the bottom of the left-to-right distance indicator device 3. The rotating pin 20 is inserted into the base 4. The retrieval device 5 includes a column 7 and a take-up rope 8. The column 7 is fixed at the top of the left-to-right distance indicator device 3. The take-up rope 8 passes through the top of the column 7. One end of the take-up rope 8 is fixed to the front-to-back distance indicator device 2, and the other end is used for manual pull rope retrieval.

[0027] like Figure 1 As shown, a fixed pulley 9 is installed at the top of the column 7 to facilitate the pulling of the rope 8 during retrieval. An anti-slip ring is installed at the top of the fixed pulley 9 to prevent the rope from slipping during retrieval.

[0028] like Figure 2 As shown, the steel pipe pile capturing device 1 includes a "U"-shaped pile-locking fork 11, anti-collision rollers 12, and a connecting arm 13. The anti-collision rollers 12 are installed on the inner side wall of the "U"-shaped pile-locking fork 11 at the axis. The anti-collision rollers 12 make the "U"-shaped pile-locking fork 11 slide smoothly when it comes into contact with the steel pipe pile. The connecting arm 13 is fixedly connected to the outer side of the "U"-shaped pile-locking fork 11 and is correspondingly installed with the anti-collision rollers 12. One end of the rope 8 is fixed to the connecting arm 13 through the ear plate. Anti-collision rubber strips are installed on the inner side wall of the "U"-shaped pile-locking fork 11 for anti-collision and anti-scratching.

[0029] like Figure 3 As shown, the front and rear distance indication device 2 includes a limiting base plate 14, an upper baffle 15, and an indication dial 16. One end of the limiting base plate 14 and the upper baffle 15 are fixed together at an angle of less than 90°. There are two indication dials 16, which are fixed on the two sides of the limiting base plate 14 and the upper baffle 15. Angle and distance values ​​are set on the surface of the indication dial 16 for easy and accurate reading.

[0030] like Figure 4As shown, the left and right distance indication device 3 includes a side limiting plate 17 and a second indication dial 18. There are two side limiting plates 17, which are vertically arranged on the upper surface of the base 4. The second indication dial 18 is horizontally arranged on the top of the side limiting plate 17. Angle and distance values ​​are set on the surface of the second indication dial 18. A rotating pin 20 is set on the upper surface of the base 4. The rotating pin 20 is inserted into the pin hole to fix the horizontally rotating square steel 6.

[0031] like Figure 3 As shown, the upper part of the position dial 16 is provided with a locking pin hole 19, and the lower part is provided with a rotating pin 20. The connecting arm 13 is inserted between the two position dials 16 and rotates around the rotating pin 20. After the connecting arm 13 is retracted, the pin is inserted into the locking pin hole 19 to lock the connecting arm 13.

[0032] The steps for using this auxiliary positioning device are as follows:

[0033] (1) Before the operation begins, the operator installs the “U”-shaped pile fork 11 at the front of the steel pipe pile capturing device 1 onto the steel pipe pile capturing device 1.

[0034] (2) After the foundation steel pipe pile is hoisted into the upper U-shaped groove of the pile stabilization platform, pull out the locking limit pin in the upper locking pin hole 19 of the front and rear distance indicator device 2, loosen the take-up and release rope 8 of the recovery device 5, and the operator assists in pushing forward so that the center of gravity of the steel pipe pile capture device 1 moves past the rotating pin 20. Slowly release the take-up and release rope. Under the action of gravity, the steel pipe pile capture device 1 slowly falls forward until the steel pipe pile capture device 1 rotates to the bottom limit plate 14. At this time, the front "U" shaped pile clamping fork 11 automatically catches the steel pipe pile and completes the capture of the steel pipe pile.

[0035] (3) such as Figure 8 As shown, adjust the position of the hook so that the steel pipe pile is basically located at the center of the U-shaped groove on the pile stabilization platform;

[0036] (4) Observe the readings on the left and right distance dials of the left and right distance indicator device 3 corresponding to the left and right distance markings on the left and right rotating square steel 2. Based on the readings, direct the crane to adjust the left and right distance of the steel pipe pile so that the markings on the horizontally rotating square steel 6 are basically located at the 0 markings in the center of the section, indicating that the left and right distance of the steel pipe pile has been reached.

[0037] (5) Observe the reading on the front and rear distance indicator 2 corresponding to the vertical turning square steel mark on the steel pipe pile capturing device 1. Adjust the front and rear distance according to the reading so that the steel pipe pile and the "U" shaped pile fork 11 are in contact with the pile arm in the front and rear direction and basically point to the 0 mark, indicating that the front and rear distance of the steel pipe pile is basically in place.

[0038] (6) After the steel pipe pile is stable, check the dial readings of the front, back and left and right positions to confirm that it is basically in the center position, and start lowering the steel pipe pile below the hook;

[0039] (7) After the steel pipe pile sinks by itself, the workers assist in pulling back and releasing the rope 8 simultaneously, pulling the "U"-shaped pile fork 11 back to the limit position, and inserting the locking pin into the locking pin hole 19 to fix the "U"-shaped pile fork 11.

[0040] (8) Remove the front end of the steel pipe pile capture device 1 and store it in the designated area or move it to the next pile position to continue the subsequent positioning operation.

[0041] like Figure 8 As shown, after the steel pipe pile enters the U-shaped groove on the pile stabilization platform, how can we quickly and accurately determine the relative position of the steel pipe pile with respect to the guide sleeve of the main pile below, and track and feedback data in real time? How can we quickly determine the distance and orientation that the steel pipe pile needs to be adjusted and provide real-time feedback to the crane operator? This pile feeding auxiliary positioning fixture, through a front-end steel pipe pile position capture device, can accurately feed back the actual position of the current steel pipe pile to two dials, displaying the actual position and deviation value of the current steel pipe pile in real time.

[0042] After the steel pipe pile enters the U-shaped groove on the pile stabilization platform, the locking pin on the distance indicator side baffle of the front and rear distance indicator device 2 is released, the reeling rope 8 is released, and the operator pushes the steel pipe pile capturing device 1 forward slightly, slowly releasing the reeling rope 8 to allow the steel pipe pile capturing device 1 to fall to its lowest position. The "U"-shaped pile clamping fork 11 at the front end of the steel pipe pile capturing device 1 automatically catches the steel pipe pile. The crane is slowly directed to perform the initial positioning of the steel pipe pile. The "U"-shaped pile clamping fork 11 at the front end of the steel pipe pile capturing device swings with the rise and fall of the steel pipe pile, causing the front and rear distance indicator lines and the left and right distance indicator lines to swing, indicating the current front and rear distance and left and right distance of the steel pipe pile in real time on the corresponding dials. Based on the readings on the dial, the crane operator directs the crane to adjust the position of the steel pipe pile until the markings all point to the 0 mark on both the front-to-back distance dial and the left-to-right distance dial. This indicates that the center of the steel pipe pile is basically aligned with the center of the guide sleeve of the main pile below. At this point, the hook is lowered and the steel pipe pile is lowered, allowing it to pass smoothly through the guide sleeve of the main pile below, avoiding collisions and squeezing between the steel pipe pile and the guide sleeve of the main pile below.

[0043] When in use, as long as the steel pipe pile enters the U-shaped groove on the upper part of the stabilizing platform, the steel pipe pile capturing device 1 at the front end can automatically capture the steel pipe pile under its own weight.

[0044] The crane operator can read the pointers on the two dials to directly obtain the actual deviation values ​​of the current steel pipe pile in the plane position on the X and Y axes, providing accurate data guidance for the crane operator.

[0045] The front-end steel pipe pile capturing device 1 is equipped with a U-shaped locking fork 11 with a guide opening. As long as the steel pipe pile enters the upper U-shaped groove on the top of the stabilizing platform, it can capture the steel pipe pile by its own weight, holding the steel pipe pile from three sides. The front-end steel pipe pile capturing device 1 is equipped with anti-collision rollers 12. The steel pipe pile capturing device 1 can roll up and down close to the outer wall of the steel pipe pile. At the same time, when squeezed, the steel pipe pile capturing device 1 can automatically lift upward under the action of the component force of the squeezing force, avoiding damage to the steel pipe pile capturing device 1.

[0046] The front-end steel pipe pile capturing device 1 is equipped with anti-collision rollers 12 at its end. The entire steel pipe pile capturing device can move up and down along the outer wall of the steel pipe pile. In the initial state, the entire front-end steel pipe pile capturing device 1 is tilted upward at 20°. When squeezed by the steel pipe pile, it can automatically rotate around the rotating pin at the tail end and lift upward, and the feedback is the offset distance to guide the crane operator to adjust the position of the steel pipe pile.

[0047] The pile feeding and positioning fixture can swing freely left and right and up and down. The range of left and right swing is slightly larger than the U-shaped groove on the upper part of the pile stabilizing platform, which avoids the end steel pipe pile capturing device 1 being damaged by the left and right swing of the steel pipe pile.

[0048] After the pile feeding is completed, the end steel pipe pile capturing device is retrieved by the recovery device 5 with manual assistance, and locked with a locking pin to prevent the steel pipe pile capturing device 1 from falling. The recovery method and the pile locking method are simple and easy to operate.

[0049] Using this simple pile feeding and positioning tool, the center positioning of steel pipe piles can be completed quickly and accurately, which greatly improves the accuracy of pile feeding, reduces the difficulty of pile feeding, shortens the adjustment time of pile feeding, and avoids the influence of the human ability of the crane operator during pile feeding.

[0050] like Figure 8 As shown, this auxiliary positioning device is fixedly installed on the platform of the U-shaped groove on the pile stabilization platform (i.e., attached). Figure 8 (At point A marked in the middle), after the foundation steel pipe pile is turned over, the main crane lifts the steel pipe pile and moves it to the U-shaped groove on the pile stabilization platform. The crane operator observes the position of the steel pipe pile relative to the upper U-shaped groove and initially judges that the position of the steel pipe pile is basically located at the center of the lower main pile guide sleeve. The auxiliary positioning device is operated according to the above operation steps, and then the hook is lowered to complete the pile feeding.

[0051] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A precision pile feeding and positioning device for pipe piles in a stable pile platform foundation, characterized in that: The device includes a steel pipe pile capturing device, a front-to-back distance indicator, a left-to-right distance indicator, a base, and a retrieval device. The tail of the steel pipe pile capturing device is hinged to the front-to-back distance indicator. A horizontally rotating square steel bar is installed at the bottom of the front-to-back distance indicator. The horizontally rotating square steel bar is inserted into the left-to-right distance indicator. One end of the horizontally rotating square steel bar has a pin hole into which a rotating pin is inserted. The base is located at the bottom of the left-to-right distance indicator. The rotating pin is inserted into the base. The retrieval device includes a column and a retrieval rope. The column is fixed to the top of the left-to-right distance indicator. The retrieval rope passes through the top of the column. One end of the retrieval rope is fixed to the front-to-back distance indicator, and the other end is used for manual retrieval by pulling the rope.

2. The precise pile feeding and positioning device for the foundation pipe piles of the stabilizing platform as described in claim 1, characterized in that: The top of the column is equipped with a fixed pulley to facilitate the pulling of the rope during retrieval. The top of the fixed pulley is equipped with an anti-slip ring to prevent the rope from slipping during retrieval.

3. The precise pile feeding and positioning device for the foundation pipe piles of the stabilizing platform as described in claim 1, characterized in that: The steel pipe pile capturing device includes a "U"-shaped pile-locking fork, anti-collision rollers, and a connecting arm. Anti-collision rollers are installed on the inner side wall at the axis of the "U"-shaped pile-locking fork. The connecting arm is fixedly connected to the outer side of the "U"-shaped pile-locking fork and is correspondingly set with the anti-collision rollers. One end of the rope for releasing and retracting is fixed to the connecting arm through an ear plate.

4. The precise pile feeding and positioning device for the foundation pipe piles of the stabilizing platform as described in claim 3, characterized in that: Anti-collision rubber strips are provided on the inner wall of the "U"-shaped jack fork.

5. The precise pile feeding and positioning device for the foundation pipe piles of the stable pile platform according to claim 1, characterized in that: The front and rear distance indication device includes a limiting base plate, an upper baffle, and an indication dial. One end of the limiting base plate and the upper baffle are fixed together at an angle of less than 90°. There are two indication dials, which are fixed on the two sides of the base plate and the upper baffle. Angle and distance values ​​are set on the surface of the indication dial.

6. The precise pile feeding and positioning device for the foundation pipe piles of the stable pile platform according to claim 1, characterized in that: The left and right distance indication device includes a side limiting plate and a second indication dial. There are two side limiting plates, which are vertically set on the upper surface of the base. The second indication dial is horizontally set on the top of the side limiting plate. Angle and distance values ​​are set on the surface of the second indication dial. A rotating pin is set on the upper surface of the base. The rotating pin is inserted into the pin hole to fix the horizontally rotating square steel.

7. The precise pile feeding and positioning device for the foundation pipe piles of the stable pile platform according to claim 5, characterized in that: The upper part of the position indicator dial 1 is provided with a locking pin hole, and the lower part is provided with a rotating pin. The connecting arm is inserted between the two position indicator dials 1 and rotates around the rotating pin. After the connecting arm is retracted, the pin is inserted into the locking pin hole to lock the connecting arm.

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