An ultra-long engineering pile hoisting system

Abstract

The utility model discloses a kind of super-long engineering pile hoisting systems, including crane, hanger, bottom form, hanger upper stage sling, stage sling is connected on crane, hanger is located at the sleeve set of corresponding stage sling two-stage sling, hanger is connected with its below pile body by two-stage sling, pile body is shaped on bottom form, bottom form is located at two-stage sling place and is all provided with rope slot, cover plate is movably arranged in rope slot.The utility model is characterized by: through the setting of hanger, stage sling, two-stage sling, without pre-buried lifting appliance, pile body is not prone to crack, guarantee the strength and integrity of pile body, facilitate subsequent use, ensure that the force of sling is minimum when hoisting pile body, make the wide range of sling selection, reduce production cost;Through the setting of rope slot, cover plate, solve the problem that two-stage sling is fixed around pile body and hanger, simple structure, convenient operation.

Description

Technical Field

[0001] This utility model relates to the technical field of lifting equipment, specifically to an ultra-long engineering pile lifting system. Background Technology

[0002] Ordinary piles are typically 15-20 meters long. For these piles, lifting is usually done by pre-embedding lifting devices in the pile body and using a crane to lift the pile by passing a rope through the lifting devices. However, because ultra-long engineering piles are much longer than ordinary piles, their weight increases significantly. The lifting method for ordinary piles is too risky for ultra-long engineering piles exceeding 55 meters in length, as the pile body is prone to cracking, making it impossible to guarantee the integrity of the pile body and affecting its subsequent use. Therefore, a lifting system is needed to meet the lifting requirements of ultra-long engineering piles. Utility Model Content

[0003] The purpose of this invention is to overcome the above-mentioned shortcomings and provide an ultra-long engineering pile lifting system.

[0004] The technical solution adopted by this utility model to achieve the above objectives is as follows:

[0005] A lifting system for ultra-long engineering piles includes a crane, a lifting frame, and a bottom formwork. At least three primary lifting ropes are connected to the upper end of the lifting frame, and the upper ends of each primary lifting rope are connected to the crane. Secondary lifting ropes are fitted onto the lifting frame at the corresponding primary lifting rope positions. The lifting frame is connected to the pile body below it via the secondary lifting ropes. The pile body is formed on the bottom formwork. Rope-passing grooves are opened on the bottom formwork at the corresponding secondary lifting rope positions. Cover plates are movably installed within the rope-passing grooves. When the pile body is formed, the cover plates are installed in the rope-passing grooves and close the grooves, with their top surfaces flush. When the pile body is lifted, the cover plates are removed from the rope-passing grooves, and the secondary lifting ropes can pass through one end of the rope-passing groove to the bottom of the pile body and exit from the other end of the groove, connecting the pile body to the lifting frame.

[0006] It includes at least two sets of cranes, each set of cranes is equipped with a set of lifting frames below it, each set of lifting frames is connected to the corresponding crane through a corresponding primary lifting rope, and each set of lifting frames is connected to the pile body through a corresponding secondary lifting rope.

[0007] The upper end of the hanger is equipped with lifting lugs, and the primary lifting rope is connected to the hanger through the corresponding lifting lugs.

[0008] The length of the rope-threading groove is greater than the width of the pile.

[0009] When the pile is lifted, there is a gap between the lower end of the lifting frame and the upper end of the pile.

[0010] The hanger is made of I-beams.

[0011] The features of this utility model are: by setting up a hanger, a primary lifting rope, and a secondary lifting rope, there is no need to pre-embed lifting tools, the pile body is less prone to cracking, ensuring the strength and integrity of the pile body, facilitating subsequent use, ensuring that the lifting rope is subjected to minimal stress during pile hoisting, making the range of lifting ropes that can be selected wide and reducing production costs; by setting up a rope groove and a cover plate, the problem of the secondary lifting rope wrapping around the pile body and fixing to the hanger is solved, the structure is simple and the operation is convenient. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the hanger of this utility model;

[0014] Figure 3 This is a schematic diagram of the rope-threading groove structure of this utility model;

[0015] Figure 4 yes Figure 3 Side sectional view.

[0016] The components include: 1. Crane; 2. Primary lifting rope; 3. Hanger; 4. Lifting lug; 5. Secondary lifting rope; 6. Bottom formwork; 7. Rope threading groove; 8. Cover plate; 9. Ground; 10. Pile body. Detailed Implementation

[0017] like Figure 1-4As shown, this utility model is a lifting system for ultra-long engineering piles, including a crane 1, a lifting frame 3, and a bottom formwork 6. The crane 1 can be a bridge crane, and the lifting frame 3 can be made of I-beams. During lifting, the middle of the I-beams is vertical, which can ensure the structural strength of the lifting frame 3 during the lifting of the pile body 10, and eliminates the need for a separate special lifting frame. The bottom formwork 6 can be made of steel plate and laid on the ground 9 of the pile-making site. A gap is reserved between the bottom formwork 6 and the ground 9 to allow the cover plate 8 to move down and the secondary lifting rope 5 to pass through. The lifting frame 3 and the bottom formwork 6 can be reused, reducing costs and making it simple and practical. Because the pile body 10 of ultra-long engineering piles is quite long, at least two sets of cranes 1 are used. The pile body 10 is hoisted, and a set of lifting frames 3 is set below each set of cranes 1. At least three primary lifting ropes 2 are tied to the upper end of each set of lifting frames 3. Preferably, four primary lifting ropes 2 are set, with two located in the middle of the lifting frame 3 and the other two placed on both sides. This arrangement enhances the hoisting strength. Lifting lugs 4 are welded to the upper end of the lifting frame 3. The primary lifting ropes 2 are connected to the lifting frame 3 by being tied to the corresponding lifting lugs 4. The lifting lugs 4 facilitate the connection of the primary lifting ropes 2 and reduce maintenance costs. The upper ends of the primary lifting ropes 2 are all tied to the hooks of the corresponding cranes 1. Secondary lifting ropes 5 are fitted on the lifting frames 3 at the corresponding primary lifting ropes 2. The two primary lifting ropes in the middle are... A secondary lifting rope 5 is provided at rope 2. Both the primary and secondary lifting ropes 2 and 5 are made of steel wire rope. The lifting frame 3 and the pile 10 below it are bound together by the longitudinally wound secondary lifting rope 5. When the pile 10 is lifted, there is a gap between the lower end of the lifting frame 3 and the upper end of the pile 10 to avoid contact and collision between the lifting frame 3 and the pile 10 during the lifting process, thereby reducing the probability of damage to the pile 10. The pile 10 is formed on the bottom template 6. The bottom template 6 has rope grooves 7 at the corresponding secondary lifting ropes 5, and the length of the rope grooves 7 is greater than the width of the pile 10. That is, the two ends of the rope grooves 7 are located on the outside of the corresponding two sides of the pile 10. A cover plate 8 is embedded in the rope grooves 7. Preferably, the cover plate 8 is a portion cut from the bottom template 6. The hole left on the bottom template after cutting the cover plate 8 is the rope groove 7. When the pile body 10 is formed, the cover plate 8 is embedded in the rope groove 7 and the rope groove 7 is closed, with the top surfaces of the two being flush. That is, the top surface of the cover plate 8 is flush with the top surface of the bottom template 6. When the pile body 10 is lifted, the cover plate 8 is removed from the rope groove 7, thus forming a space for the secondary lifting rope 5 to pass through. The secondary lifting rope 5 can pass through one end of the rope groove 7 to the bottom of the pile body 10 and out from the other end of the rope groove 7, binding and connecting the pile body 10 with the lifting frame 3. After the pile body is lifted, the cover plate 8 can be tilted and taken out from the ground 9 below the rope groove 7.

[0018] To enable the switching between the embedded and removed states of the cover plate 8 at the rope-threading groove 7, the top surfaces at both ends of the cover plate 8 (positions that do not affect the forming of the pile body 10) can be welded to the bottom template 6 or installed using a disassembly and assembly structure. This disassembly and assembly structure can be a bolt and nut structure, with nuts fixed to both the top surface of the cover plate 8 and the top surface of the bottom template 6. When the bolt connects the two nuts, it ensures that the cover plate 8 is embedded in the rope-threading groove 7 and fixedly connected to the bottom template 6, preventing it from falling. When the bolt is unscrewed, the cover plate 8 falls into the rope-threading groove 7 unrestricted under gravity. On the ground 9 below, the disassembly and assembly structure can be a support rod. One end of the support rod is horizontally rotatably mounted on the cover plate 8. The end of the support rod can be rotated to the top of the bottom template 6. When installing the cover plate 8, the end of the support rod is rotated to the top of the bottom template 6. The bottom template 6 supports the support rod, i.e., the cover plate 8, ensuring that the cover plate 8 will not fall when embedded in the rope groove 7. When removing the cover plate 8, the support rod is rotated to make it rotate back onto the cover plate 8. At this time, without the support of the bottom template 6, the cover plate 8 falls freely into the ground 9 below the rope groove 7 under the action of gravity.

[0019] During pile fabrication, the cover plate 8 is fixedly installed on the rope groove 7, ensuring that the top surface of the cover plate 8 is flush with the top surface of the bottom template 6 to guarantee the forming quality of the pile body 10. If there is a gap due to poor fit between the cover plate 8 and the rope groove 7, the gap can be sealed with tape to prevent concrete used for pile fabrication from leaking through the gap, ensuring the flatness of the pile body 10 surface. At this time, the cover plate 8 can be fixed to the bottom template 6 by welding or disassembly / reassembly structures, with the connection point located outside the pile body 10 for easy removal of the cover plate 8 later. When hoisting the pile body 10 after its fabrication is completed, first cut the welding point between the cover plate 8 and the bottom template 6, or loosen the bolts, or rotate the support rod so that the cover plate 8 falls into the ground 9 below the rope groove 7 without support under gravity. If tape sealing is used, it can be manually applied to both ends of the cover plate. Force can cause the cover plate 8 to fall. At this time, the rope groove 7 opens to allow the rope to be threaded. The secondary lifting rope 5 passes through the rope groove 7 at the lower end of the pile body 10 and surrounds the pile body 10. The lifting frame 3 is tied to the pile body 10 through the secondary lifting rope 5. Then, the lifting frame 3 is tied to the corresponding crane 1 through the primary lifting rope 2. During lifting, the primary lifting rope 2 does not act directly on the pile body 10. The secondary lifting rope 5 connected to the pile body 10 is in a vertical state, with minimal force on the lifting rope, high lifting stability, and a wide range of lifting ropes that can be selected, such as 30 steel rope and 40 steel rope, which can reduce production costs. There are no pre-embedded lifting tools on the pile body 10, which makes it less prone to cracking and ensures the integrity of the pile body. After the pile body is lifted, the cover plate 8 is removed from the rope groove 7 and re-fixed to the rope groove 7, and the pile manufacturing cycle is repeated.

[0020] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the scope of the technology disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An ultra-long engineering pile hoisting system, characterized in that: The system includes a crane, a lifting frame, and a bottom formwork. At least three primary lifting ropes are connected to the upper end of the lifting frame, each connected to the crane. Secondary lifting ropes are fitted onto the lifting frame at the corresponding primary lifting rope position. The lifting frame is connected to the pile below via the secondary lifting ropes. The pile is formed on the bottom formwork. Rope-passing grooves are provided on the bottom formwork at the corresponding secondary lifting rope positions. Cover plates are movably installed within these grooves. When the pile is formed, the cover plates are installed in the rope-passing grooves, sealing them and ensuring their top surfaces are flush. When the pile is lifted, the cover plates are removed from the rope-passing grooves. The secondary lifting ropes can pass through one end of the rope-passing groove to the bottom of the pile and exit from the other end, connecting the pile to the lifting frame.

2. The ultra-long engineering pile lifting system as described in claim 1, characterized in that: It includes at least two sets of cranes, each set of cranes is equipped with a set of lifting frames below it, each set of lifting frames is connected to the corresponding crane through a corresponding primary lifting rope, and each set of lifting frames is connected to the pile body through a corresponding secondary lifting rope.

3. A lifting system for ultra-long engineering piles as described in claim 1 or 2, characterized in that: The upper end of the hanger is equipped with lifting lugs, and the primary lifting rope is connected to the hanger through the corresponding lifting lugs.

4. A lifting system for ultra-long engineering piles as described in claim 1 or 2, characterized in that: The length of the rope-threading groove is greater than the width of the pile.

5. A lifting system for ultra-long engineering piles as described in claim 1 or 2, characterized in that: During lifting, there is a gap between the lower end of the lifting frame and the upper end of the pile.

6. A lifting system for ultra-long engineering piles as described in claim 1 or 2, characterized in that: The hanger is made of I-beams.

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