Prefabricated PHC pipe pile pressing mechanism suitable for ocean working conditions

Abstract

The utility model discloses a prefabricated PHC pipe pile pressing mechanism suitable for ocean working conditions, and relates to the technical field of PHC pipe pile construction, a plurality of pile pressing guide mechanisms are arranged between a top supporting table and a bottom supporting table in the circumferential direction of a pile pressing groove, and a lifting brake mechanism is arranged at the upper end of a rack of the top supporting table. And a pile pressing hydraulic rod is mounted on a lifting platform of the lifting brake mechanism. According to the design, the PHC pipe pile is pressed in a vertical state on the basis of circumferential opposite pressing of the guide wheels in the pile pressing guide mechanism, then the PHC pipe pile is pressed through combination of the pile pressing hydraulic rod and the pile pressing push head, and after the extension length of the pile pressing hydraulic rod reaches the maximum reset, the pile pressing hydraulic rod is pushed to the pile pressing push head. By means of vertical placement of a lifting traction component in the lifting brake mechanism, the pile pressing hydraulic rod moves downwards below the lifting sliding table, the telescopic pile pressing capacity is kept again, according to the mode, the pile pressing hydraulic rod circularly moves downwards to conduct continuous pile pressing work, and the overall operation is fast and efficient.

Description

Technical Field

[0001] The utility model relates to the field of PHC pipe pile construction, in particular to a prefabricated PHC pipe pile pressing mechanism suitable for marine working conditions. Background Technique

[0002] Due to its high strength, short construction period, low noise, strong adaptability, economic and environmental protection and other characteristics, PHC pipe piles play an important role in construction projects and are widely used in industrial and civil buildings, bridges, port terminals, water conservancy projects and other fields. For example, the construction of coastal port terminals and the construction of underwater bridges all require PHC pipe piles as the support base. When driving PHC pipe piles, it is necessary to use pile pressing equipment to drive the pipe piles into the deep foundation one by one. As shown in a static pile pressing frame for static pressure pipe piles (publication number CN215052982U) disclosed by the Chinese Patent Network, during the use of such pile driving devices, by installing a guiding frame and then hoisting the steel pipe, the jack is retracted and then steel cushion blocks are added. By repeatedly adding cushion blocks in this way, the jack is retracted until the pile pressing force and pile pressing depth meet the design requirements. The operation is simple and convenient, and the installation strength is relatively low.

[0003] However, for the PHC pipe pile pressing equipment adopted in the above-mentioned public patents and the existing market, there are still some deficiencies: the existing method that uses a jack as the power source and gradually presses the pipe pile by repeatedly adding cushion blocks requires continuous assembly of the cushion blocks and disassembly of all cushion blocks after each single pile pressing before the next group of pile pressing work can be carried out. The operation is not only cumbersome but also time-consuming, which is not conducive to the continuous pile pressing work of the pipe pile. Therefore, technical personnel in this field have provided a prefabricated PHC pipe pile pressing mechanism suitable for marine working conditions to solve the problems raised in the above background technique. Summary of the Utility Model

[0004] In view of the deficiencies of the prior art, the utility model provides a prefabricated PHC pipe pile pressing mechanism suitable for marine working conditions, which solves the problems of cumbersome operation and long time consumption of the existing PHC pipe pile pressing mechanism mentioned in the above background technique.

[0005] To achieve the above purposes, the utility model is realized through the following technical solutions: a prefabricated PHC pipe pile pressing mechanism suitable for marine working conditions, including a top support platform and a bottom support platform that are horizontally opposite;

[0006] The plate surfaces of the top support platform and the bottom support platform are both penetrated and provided with pile pressing grooves, and a plurality of groups of pile pressing guiding mechanisms are arranged along the circumferential direction of the pile pressing grooves between the top support platform and the bottom support platform;

[0007] An elevating braking mechanism is arranged at the upper end of the frame of the top support platform, and a pile pressing hydraulic rod is installed on the elevating platform of the elevating braking mechanism;

[0008] The lifting and braking mechanism includes three groups of arm force frames symmetrically installed in a triangular form at the upper end of the top support platform frame. A lifting slide table for supporting the pile pressing hydraulic rod is slidably connected to the track frame of the arm force frame, and a lifting traction component for pulling the lifting slide table is installed on the top frame of the arm force frame. Three groups of locking hydraulic rods opposite to the arm force frame are arranged along the circumferential direction of the lifting slide table.

[0009] As a further technical solution of the present invention: The pile pressing guiding mechanism includes a supporting seat. A guiding hydraulic rod is installed in the middle of the support of the supporting seat. A roller seat is installed at the telescopic end of the guiding hydraulic rod, and multiple groups of guiding wheels are arranged and installed on the support of the roller seat.

[0010] As a further technical solution of the present invention: Arm force guide rods fixedly connected to the roller seat are slidably connected to the upper and lower ends of the support of the supporting seat along the telescopic braking direction of the guiding hydraulic rod.

[0011] As a further technical solution of the present invention: The lifting traction component includes a lifting motor installed on the top frame of the arm force frame. Reeling wheels are installed on both output shafts at the two ends of the lifting motor, and a reeling steel cable connected to the lifting slide table is wound inside the reel of the reeling wheel.

[0012] As a further technical solution of the present invention: A locking rack is installed inside the track frame of the arm force frame, and a locking tooth seat meshing with the locking rack is installed at the telescopic end of the locking hydraulic rod.

[0013] As a further technical solution of the present invention: A pile pressing push head perpendicular to the pile pressing groove is installed at the telescopic end of the pile pressing hydraulic rod.

[0014] The present invention provides a prefabricated PHC pipe pile pressing mechanism applicable to marine working conditions, which has the following beneficial effects compared with the prior art:

[0015] In the PHC pipe pile pressing mechanism of this design, based on the circumferential pressing of the guiding wheels in the pile pressing guiding mechanism, the PHC pipe pile is pressed in a vertical state. Then, by using the combination of the pile pressing hydraulic rod and the pile pressing push head, the PHC pipe pile is pressed. And when the extended length of the pile pressing hydraulic rod reaches the maximum and is reset, by using the vertical release of the lifting traction component in the lifting and braking mechanism, the lifting slide table is moved below, so that the pile pressing hydraulic rod moves downward, and the telescopic pile pressing ability is maintained again. Then, under the locking and fixing of the locking hydraulic rod on the lifting slide table, the pile pressing hydraulic rod is used to press the PHC pipe pile again. By following this method, the pile pressing hydraulic rod is cyclically moved downward for continuous pile pressing work. While the overall operation is fast and efficient, it does not require manual control, which is convenient for continuous pile pressing processes of PHC pipe piles. Description of the Drawings

[0016] Figure 1 It is a structural schematic diagram of a precast PHC pipe pile pressing mechanism applicable to marine conditions;

[0017] Figure 2 It is a partial sectional view of a precast PHC pipe pile pressing mechanism applicable to marine conditions;

[0018] Figure 3 It is a precast PHC pipe pile pressing mechanism applicable to marine conditions Figure 2 and an enlarged view of part A therein;

[0019] Figure 4 It is a structural schematic diagram of the pile pressing guiding mechanism in a precast PHC pipe pile pressing mechanism applicable to marine conditions.

[0020] In the figure: 1, top support platform; 2, bottom support platform; 3, pile pressing groove; 4, pile pressing guiding mechanism; 41, support stand; 42, arm force guide rod; 43, guiding hydraulic rod; 44, roller seat; 45, guiding wheel; 5, arm force frame; 6, lifting slide; 7, lifting motor; 8, winding and unwinding wheel; 9, winding and unwinding steel cable; 10, pile pressing hydraulic rod; 11, pile pressing push head; 12, locking rack; 13, locking tooth seat; 14, locking hydraulic rod. Specific implementation manners

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1-4, the present utility model provides a technical solution for a prefabricated PHC pipe pile pressing mechanism applicable to marine conditions: A prefabricated PHC pipe pile pressing mechanism applicable to marine conditions includes a horizontally opposite top support platform 1 and a bottom support platform 2. The plate surfaces of the top support platform 1 and the bottom support platform 2 are both penetrated and provided with pile pressing grooves 3. And between the top support platform 1 and the bottom support platform 2, a plurality of pile pressing guiding mechanisms 4 are arranged along the circumferential direction of the pile pressing groove 3. The pile pressing guiding mechanism 4 includes a support stand 41. A guiding hydraulic rod 43 is installed in the middle of the support of the support stand 41. A roller seat 44 is installed at the telescopic end of the guiding hydraulic rod 43. And a plurality of guiding wheels 45 are arranged on the support of the roller seat 44. At the upper and lower ends of the support of the support stand 41, arm force guiding rods 42 fixedly connected to the roller seat 44 are slidably connected along the telescopic braking direction of the guiding hydraulic rod 43. After the PHC pipe pile is vertically placed into the pile pressing groove 3, by controlling the telescopic braking of the guiding hydraulic rod 43 of the pile pressing guiding mechanism 4, the combination of the roller seat 44 and the guiding wheels 45 is pushed to slide oppositely and successively fit on the PHC pipe pile to form a clamping and guiding state, vertically guiding and limiting the PHC pipe pile to ensure the vertical stability of the PHC pipe pile pressing.

[0023] A pile pressing hydraulic rod 10 is installed on the lifting platform of the lifting and braking mechanism. A pile pressing push head 11 perpendicular to the pile pressing groove 3 is installed at the telescopic end of the pile pressing hydraulic rod 10. By controlling the telescopic end of the pile pressing hydraulic rod 10 to extend, the pile pressing push head 11 is pushed to move downward. As a power source, a downward pressure is applied to the PHC pipe pile to press the PHC pipe pile deep into the foundation.

[0024] An lifting and braking mechanism is arranged at the upper end of the frame of the top support platform 1. The lifting and braking mechanism includes three groups of arm force frames 5 installed symmetrically in a triangular form at the upper end of the frame of the top support platform 1. A lifting sliding table 6 supporting the pile pressing hydraulic rod 10 is slidably connected to the track frame of the arm force frame 5. And a lifting traction component for pulling the lifting sliding table 6 is installed on the top frame of the arm force frame 5. The lifting traction component includes a lifting motor 7 installed on the top frame of the arm force frame 5. Reeling wheels 8 are installed on the output shafts at both ends of the lifting motor 7. And a reeling steel cable 9 connected to the lifting sliding table 6 is wound inside the reel of the reeling wheel 8. When the telescopic end of the pile pressing hydraulic rod 10 extends to the maximum and resets, the lifting motor 7 is controlled to work, driving the reeling wheel 8 to rotate, and the reeling steel cable 9 is released. Then the lifting sliding table 6 slides downward along the arm force frame 5 under the action of gravity, bringing the combination of the pile pressing hydraulic rod 10 and the pile pressing push head 11 closer to the PHC pipe pile again to perform a cyclic pile pressing process on the PHC pipe pile.

[0025] The lifting and sliding table 6 is provided with three groups of locking hydraulic rods 14 opposite to the arm strength frame 5 along its circumferential direction. A locking rack 12 is installed inside the track frame of the arm strength frame 5. The telescopic end of the locking hydraulic rod 14 is installed with a locking tooth seat 13 meshing with the locking rack 12. While moving the lifting and sliding table 6 downward, control the telescopic end of the locking hydraulic rod 14 to extend, pushing the locking tooth seat 13 to lock onto the locking rack 12, forming a locked and fixed state for the lifting and sliding table 6, fixing and limiting the lifting and sliding table 6, and serving as the pile pressing platform for the pile pressing hydraulic rod 10.

[0026] The working principle of the present utility model is as follows: When carrying out the PHC pipe pile pressing work on the construction facilities in the marine working conditions, the pile pressing mechanism can be installed on the hull or other supporting components in advance. Then, when performing the pile pressing process, the PHC pipe pile is vertically placed into the pile pressing groove 3, and the telescopic braking of the guiding hydraulic rod 43 of the pile pressing guiding mechanism 4 is controlled to push the combination of the roller seat 44 and the guiding wheel 45 to slide towards each other and successively fit onto the PHC pipe pile, forming a clamping and guiding state to vertically guide and limit the PHC pipe pile;

[0027] Furthermore, control the telescopic end of the pile pressing hydraulic rod 10 to extend, pushing the pile pressing push head 11 downward. As the power source, apply a downward pressure to the PHC pipe pile to press the PHC pipe pile deeper into the foundation. When the telescopic end of the pile pressing hydraulic rod 10 extends to the maximum and resets, control the lifting motor 7 to work, drive the winding wheel 8 to rotate, and release the winding steel cable 9. Then, the lifting and sliding table 6 slides downward along the arm strength frame 5 under the action of gravity, bringing the combination of the pile pressing hydraulic rod 10 and the pile pressing push head 11 closer to the PHC pipe pile again. At the same time, control the telescopic end of the locking hydraulic rod 14 to extend, pushing the locking tooth seat 13 to lock onto the locking rack 12, forming a locked and fixed state for the lifting and sliding table 6, fixing and limiting the lifting and sliding table 6, and serving as the cyclic pile pressing platform for the pile pressing hydraulic rod 10. Then, in this way, use the combination of the pile pressing hydraulic rod 10 and the pile pressing push head 11 to perform the cyclic pile pressing process on the PHC pipe pile. And after the PHC pipe pile pressing is completed, only need to move the pile pressing hydraulic rod 10 upward to reset, then the PHC pipe pile can be pressed again. It is convenient and efficient to operate, and does not require manual control, being suitable for pile pressing work in various complex environments.

[0028] The above is only the preferred implementation manner of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model. The structures, devices, and operation methods not specifically described and explained in the present utility model, unless otherwise specifically stated and limited, are implemented according to the conventional means in this field.

Claims

1. A prefabricated PHC pipe pile pressing mechanism applicable to marine conditions, characterized in that, It includes horizontally opposite top support platforms (1) and bottom support platforms (2); The plate surfaces of the top support platform (1) and the bottom support platform (2) are both penetrated with pile pressing grooves (3), and multiple groups of pile pressing guiding mechanisms (4) are arranged circumferentially along the pile pressing grooves (3) between the top support platform (1) and the bottom support platform (2); The upper end of the frame of the top support platform (1) is provided with a lifting braking mechanism, and a pile pressing hydraulic rod (10) is installed on the lifting platform of the lifting braking mechanism; The lifting braking mechanism includes three groups of arm force frames (5) symmetrically installed in a triangular form at the upper end of the frame of the top support platform (1). A lifting slide table (6) supporting the pile pressing hydraulic rod (10) is slidably connected to the track frame of the arm force frame (5), and a lifting traction component for pulling the lifting slide table (6) is installed on the top frame of the arm force frame (5). Three groups of locking hydraulic rods (14) opposite to the arm force frame (5) are arranged along the circumference of the lifting slide table (6).

2. The precast PHC pipe pile pressing mechanism applicable to marine conditions according to claim 1, characterized in that, The pile pressing guiding mechanism (4) includes a supporting seat (41). A guiding hydraulic rod (43) is installed in the middle of the support of the supporting seat (41). A roller seat (44) is installed at the telescopic end of the guiding hydraulic rod (43), and multiple groups of guiding wheels (45) are arranged on the support of the roller seat (44).

3. The precast PHC pipe pile pressing mechanism applicable to marine working conditions according to claim 2, characterized in that, The upper and lower ends of the support of the supporting seat (41) are slidably connected along the telescopic braking direction of the guiding hydraulic rod (43) with arm force guide rods (42) fixedly connected to the roller seat (44).

4. A prefabricated PHC pipe pile pressing mechanism applicable to marine conditions according to claim 1, characterized in that, The lifting traction component includes a lifting motor (7) installed on the top frame of the arm force frame (5). Reeling wheels (8) are installed on the output shafts at both ends of the lifting motor (7), and a reeling steel cable (9) connected to the lifting slide table (6) is wound inside the reeling wheels of the reeling wheels (8).

5. A precast PHC pipe pile pressing mechanism applicable to marine working conditions according to claim 1, characterized in that, A locking rack (12) is installed inside the track frame of the arm force frame (5), and a locking tooth seat (13) meshing with the locking rack (12) is installed at the telescopic end of the locking hydraulic rod (14).

6. The precast PHC pipe pile pressing mechanism applicable to marine conditions according to claim 1, wherein, A pile pressing push head (11) perpendicular to the pile pressing groove (3) is installed at the telescopic end of the pile pressing hydraulic rod (10).

Images