PHC pipe pile hoisting device

Abstract

The invention belongs to the technical field of lifting devices, and provides a PHC tubular pile lifting device which comprises a crane, a lifting arm is arranged at the top end of the crane, and two lifting hooks are connected to one side of the lifting arm; the stabilizing assembly comprises two mounting plates, connecting shafts are movably mounted on one sides of the two mounting plates, gears are fixedly mounted on one sides of the connecting shafts, and toothed plates are movably mounted on one sides of the gears; the double-lifting-hook transverse lifting design is adopted, so that the pipe pile is more balanced and stable in the lifting process, potential safety hazards caused by shaking are reduced, the transverse lifting mode enables the pipe pile to be positioned more easily when the pipe pile is placed, the adjusting time is shortened, the labor cost is reduced, meanwhile, the movable frame is arranged on one side of the lifting arm, and the lifting efficiency is improved. The two arc-shaped clamping plates are arranged on one side of the frame body, the arc-shaped clamping plates are driven to be close to and tightly attached to the PHC pipe pile, accurate clamping of the pipe pile is achieved, the pipe pile is effectively prevented from shaking in the hoisting process through the design, and stability and safety in the hoisting process are guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of lifting devices, and in particular relates to a PHC pipe pile lifting device. Background Art

[0002] In modern building construction, prestressed high-strength concrete piles (PHC piles) have become one of the indispensable materials in foundation engineering due to their high strength, good bending resistance and convenient construction. The production process of PHC piles adopts advanced prestressed centrifugal forming technology, and forms a precast concrete component with a hollow cylindrical structure through steam curing at 10 atmospheres (about 1.0Mpa) and about 180°C. This structure not only reduces the deadweight of the piles, but also enhances their compressive and tensile resistance, making PHC piles widely used in various foundation projects such as bridges, high-rise buildings, port facilities, etc.

[0003] However, in the actual construction process, the handling and lifting of PHC piles face a series of challenges. The traditional lifting method mainly relies on the crane. Through the cooperation of components such as the boom, ropes and hooks, the piles are lifted from the stacking area and then transported to the construction site for installation. In this process, a single hook is usually used to lift the pile vertically on one side of the pile. Although this method is relatively simple to operate, it has many shortcomings. Since only one end of the pile is subjected to force during the lifting process and there is a lack of sufficient constraints, the pile is easily affected by external factors such as wind and vibration in the air, causing shaking. This shaking not only increases the difficulty of construction, but may also cause the pile to collide with the boom or other construction components, causing safety hazards. In the vertical lifting method, the center of gravity of the pile is high. Once disturbed by external forces, it is easy to tilt or even fall off, posing a serious threat to construction personnel and surrounding equipment. At the construction site, the piles usually need to be arranged according to a specific layout and spacing. However, the vertical lifting method makes it difficult to accurately control the position of the piles when placing them, and it often requires multiple adjustments to achieve neat arrangement. This not only reduces construction efficiency, but may also affect the subsequent construction quality and progress. Summary of the invention

[0004] The object of the present invention is to provide a PHC pile lifting device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A PHC pile lifting device, comprising:

[0007] A crane, wherein a boom is provided at the top of the crane, and two hooks are connected to one side of the boom;

[0008] A stabilizing component, the stabilizing component comprises two mounting plates, one side of each of the mounting plates is movably mounted with a connecting shaft, one side of the connecting shaft is fixedly mounted with a gear, one side of the gear is movably mounted with a toothed plate, one side of the connecting shaft is fixedly mounted with a swing plate, one side of the swing plate is connected with a support plate, one side of the support plate is fixedly mounted with a No. 2 hydraulic cylinder, the output end of the No. 2 hydraulic cylinder is connected with a frame, two threaded blocks are movably mounted inside the frame, and one side of each of the two threaded blocks is connected with an arc-shaped clamping plate;

[0009] The support assembly includes a limit frame, a limit column is movably installed inside the limit frame, a side plate is fixedly installed on one side of the limit column, a No. 3 hydraulic cylinder is fixedly installed on one side of the side plate, and a support plate is fixedly installed on the output end of the No. 3 hydraulic cylinder.

[0010] Preferably, mounting plates are fixedly installed on both sides of the boom, a connecting shaft is movably installed on one side of the mounting plate through a bearing, a gear is fixedly installed on the outer side of the connecting shaft, a toothed plate is movably installed on the side of the mounting plate close to the gear, the toothed plate is meshed with the gear, a No. 1 hydraulic cylinder is fixedly installed on the side of the mounting plate close to the toothed plate, and the output end of the No. 1 hydraulic cylinder is fixedly connected to the toothed plate.

[0011] Preferably, a swing plate is fixedly installed on one side of the connecting shaft, a support plate is fixedly connected between the swing plates, two No. 2 hydraulic cylinders are fixedly installed on the side of the support plate away from the swing plate, the two No. 2 hydraulic cylinders are symmetrically arranged, a force plate is movably installed on the side of the No. 2 hydraulic cylinder away from the support plate, and the output end of the No. 2 hydraulic cylinder is fixedly connected to one side of the force plate.

[0012] Preferably, two frames are fixedly installed on the side of the force-bearing plate away from the No. 2 hydraulic cylinder, and threaded rods are movably installed inside the two frames through bearings. The threaded rods have two threaded sections with opposite rotation directions, and the two threaded sections are each threadedly connected with a threaded block, and the threaded block slides in fit with the inner wall of the frame.

[0013] Preferably, a connecting rod is fixedly installed on the side of the threaded block away from the frame, and an arc-shaped clamp is fixedly installed on the end of the connecting rod away from the threaded block. A servo motor No. 1 is installed on one side of the frame through a fixed seat, and the output end of the servo motor No. 1 is connected to the shaft transmission of the threaded rod through a coupling.

[0014] Preferably, two limit frames are symmetrically installed on both sides of the crane, and limit columns are movably installed inside the two limit frames. The limit columns are slidably fitted with the inner walls of the limit frames. A side plate is fixedly installed on the end of the limit column away from the crane, and a No. 3 hydraulic cylinder is fixedly installed on the top of the side plate. A support plate is movably installed on the side of the side plate away from the No. 3 hydraulic cylinder, and the output end of the No. 3 hydraulic cylinder passes through the side plate and is fixedly connected to the support plate.

[0015] Preferably, a support plate is fixedly installed inside the limit frame near the crane side, a screw rod is installed inside the limit column through threaded engagement, and one end of the screw rod near the support plate is movably connected to the support plate through a bearing.

[0016] Preferably, a driven bevel gear is movably mounted on the support plate away from the screw rod, the driven bevel gear is connected to the screw rod shaft transmission, and a driving bevel gear is movably mounted on the side of the limit frame close to the driven bevel gear through a bearing, and the driving bevel gear is meshed with the driven bevel gear.

[0017] Preferably, a second servo motor is installed on the top of the limit frame near the active bevel gear through a fixing seat, and the output end of the second servo motor is connected to the shaft of the active bevel gear through a coupling.

[0018] Preferably, limiting grooves are symmetrically provided on both sides of the limiting frame, limiting blocks are movably installed inside the limiting grooves, the limiting blocks are slidably fitted with the inner walls of the limiting grooves, and the limiting blocks are fixedly connected to the limiting columns on one side close to the inside of the limiting frame.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] (1) The present invention adopts a double-hook horizontal lifting design to make the pipe pile more balanced and stable during the lifting process, reducing the safety hazards caused by shaking, and the horizontal lifting method makes it easier to position the pipe pile when placing it, reducing the adjustment time and labor cost. At the same time, a movable frame is provided on one side of the boom, and two arc-shaped clamping plates are provided on one side of the frame. The arc-shaped clamping plates are driven to approach and tightly fit the PHC pipe piles, thereby achieving precise clamping of the pipe piles. This design effectively prevents the pipe piles from shaking during the lifting process, ensuring the stability and safety of the lifting process. Even in complex environments such as strong winds or uneven ground, the pipe piles can be stably lifted, greatly reducing safety hazards and reducing the operating difficulty and time cost of construction personnel. At the same time, due to the stable clamping, the pipe piles can be more easily placed at the predetermined position during placement, thereby improving construction efficiency and accuracy.

[0021] (2) The present invention sets a retractable limit column in the limit frame and cooperates with the No. 3 hydraulic cylinder to support the support plate on the ground, thereby increasing the force-bearing area of ​​the crane chassis and lowering the center of gravity, thereby significantly enhancing the stability of the crane during the lifting process. Even on uneven or soft ground, the crane can maintain stable operation and avoid safety accidents such as rollover. The use of the support mechanism makes the crane more stable and reliable during the lifting process, reducing the safety hazards caused by shaking or tilting. At the same time, the close contact between the support plate and the ground also increases the friction between the crane and the ground, further improving the construction safety. The use of the support mechanism eliminates the need for frequent movement and adjustment of the crane during the lifting process, reducing the operating difficulty and time cost of construction personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the installation structure of the arc-shaped clamping plate of the present invention;

[0024] Figure 3 It is a schematic diagram of the installation structure of the thread block of the present invention;

[0025] Figure 4 It is a schematic diagram of the installation structure of the limit column of the present invention.

[0026] In the figure: 1. crane; 11. boom; 12. hook; 2. stabilizing assembly; 21. mounting plate; 22. connecting shaft; 23. gear; 24. tooth plate; 25. No. 1 hydraulic cylinder; 26. swing plate; 27. support plate; 28. No. 2 hydraulic cylinder; 29. ​​force plate; 210. frame; 211. threaded rod; 212. threaded block; 213. connecting rod; 214. arc clamp; 215. No. 1 servo motor; 3. supporting assembly; 31. limit frame; 32. limit column; 33. side plate; 34. No. 3 hydraulic cylinder; 35. support plate; 36. support plate; 37. screw; 38. driven bevel gear; 39. driving bevel gear; 310. No. 2 servo motor; 311. limit groove; 312. limit block. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Embodiment 1:

[0029] See also Figure 1 - Figure 4 As shown, a PHC pile lifting device comprises:

[0030] A crane 1, wherein a boom 11 is disposed at the top of the crane 1, and two hooks 12 are connected to one side of the boom 11;

[0031] The stabilizing component 2 includes two mounting plates 21, a connecting shaft 22 is movably mounted on one side of the two mounting plates 21, a gear 23 is fixedly mounted on one side of the connecting shaft 22, a toothed plate 24 is movably mounted on one side of the gear 23, a swing plate 26 is fixedly mounted on one side of the connecting shaft 22, a support plate 27 is connected to one side of the swing plate 26, a No. 2 hydraulic cylinder 28 is fixedly mounted on one side of the support plate 27, an output end of the No. 2 hydraulic cylinder 28 is connected to a frame 210, two threaded blocks 212 are movably mounted inside the frame 210, and one side of the two threaded blocks 212 is connected to an arc clamping plate 214;

[0032] The support assembly 3 includes a limit frame 31, a limit column 32 is movably installed inside the limit frame 31, a side plate 33 is fixedly installed on one side of the limit column 32, a No. 3 hydraulic cylinder 34 is fixedly installed on one side of the side plate 33, and a support plate 35 is fixedly installed on the output end of the No. 3 hydraulic cylinder 34.

[0033] Specifically, mounting plates 21 are fixedly installed on both sides of the boom 11, a connecting shaft 22 is movably installed on one side of the mounting plate 21 through a bearing, a gear 23 is fixedly installed on the outer side of the connecting shaft 22, a toothed plate 24 is movably installed on the side of the mounting plate 21 close to the gear 23, the toothed plate 24 is meshed with the gear 23, a No. 1 hydraulic cylinder 25 is fixedly installed on the side of the mounting plate 21 close to the toothed plate 24, the output end of the No. 1 hydraulic cylinder 25 is fixedly connected to the toothed plate 24, a swing plate 26 is fixedly installed on one side of the connecting shaft 22, a support plate 27 is fixedly connected between the swing plates 26, two No. 2 hydraulic cylinders 28 are fixedly installed on the side of the support plate 27 away from the swing plate 26, the two No. 2 hydraulic cylinders 28 are symmetrically arranged, a force plate 29 is movably installed on the side of the No. 2 hydraulic cylinder 28 away from the support plate 27, and the output end of the No. 2 hydraulic cylinder 28 is fixedly connected to one side of the force plate 29.

[0034] As can be seen from the above, the connecting shaft 22 can rotate driven by the gear 23, and will synchronously drive the swing plate 26 to swing. The No. 1 hydraulic cylinder 25 pushes the tooth plate 24 to move forward and backward, thereby driving the gear 23 to rotate. The No. 2 hydraulic cylinder 28 can push the force plate 29 to move away from the boom 11.

[0035] Specifically, two frames 210 are fixedly installed on the side of the force plate 29 away from the No. 2 hydraulic cylinder 28, and threaded rods 211 are movably installed inside the two frames 210 through bearings. The threaded rod 211 has two threaded sections with opposite rotation directions, and the two threaded sections are respectively threadedly connected with a threaded block 212. The threaded block 212 slides and fits with the inner wall of the frame 210, and a connecting rod 213 is fixedly installed on the side of the threaded block 212 away from the frame 210. An arc-shaped clamping plate 214 is fixedly installed on one end of the connecting rod 213 away from the threaded block 212. A No. 1 servo motor 215 is installed on one side of the frame 210 through a fixed seat, and the output end of the No. 1 servo motor 215 is connected to the shaft transmission of the threaded rod 211 through a coupling.

[0036] As can be seen from the above, since the threaded rod 211 has two threaded sections with opposite rotation directions, when the threaded rod 211 rotates, it will drive the two threaded blocks 212 to move towards or away from each other, and then the threaded blocks 212 will synchronously drive the connecting rod 213 and the arc-shaped clamping plate 214 to approach each other, so as to achieve the clamping of the pipe pile, and the No. 1 servo motor 215 provides power output for the rotation of the threaded rod 211.

[0037] When in use, first connect the two hooks 12 to the two ends of the pipe pile (this is consistent with the prior art and will not be described in detail), lift the pipe pile horizontally, then start the No. 2 hydraulic cylinder 28 to push the frame 210 close to the pipe pile, and the arc clamping plate 214 also approaches the pipe pile synchronously, then adjust the angle of the frame 210 according to the actual position, start the No. 1 hydraulic cylinder 25 to drive the tooth plate 24 to move, and the tooth plate 24 synchronously drives the gear 23 to rotate until the connecting shaft 22 drives the frame 210 toward the pipe pile, then start the No. 1 servo motor 215 to drive the threaded rod 211 to rotate, and the threaded rod 211 drives the two threaded blocks 212 to approach each other until the arc clamping plate 214 clamps the outer wall of the pipe pile.

[0038] Embodiment 2:

[0039] See also Figure 1 and Figure 4 As shown, two limit frames 31 are symmetrically installed on both sides of the crane 1, and limit columns 32 are movably installed inside the two limit frames 31. The limit columns 32 slide and fit with the inner walls of the limit frames 31. A side plate 33 is fixedly installed on the end of the limit columns 32 away from the crane 1, and a No. 3 hydraulic cylinder 34 is fixedly installed on the top of the side plate 33. A support plate 35 is movably installed on the side of the side plate 33 away from the No. 3 hydraulic cylinder 34, and the output end of the No. 3 hydraulic cylinder 34 passes through the side plate 33 and is fixedly connected to the support plate 35.

[0040] Specifically, a support plate 36 is fixedly installed on the side of the limit frame 31 close to the crane 1, a screw rod 37 is installed on the inside of the limit column 32 through a threaded engagement, and the end of the screw rod 37 close to the support plate 36 is movably connected to the support plate 36 through a bearing, and a driven bevel gear 38 is movably installed on the side of the support plate 36 away from the screw rod 37. The driven bevel gear 38 is connected to the shaft of the screw rod 37, and an active bevel gear 39 is movably installed on the side of the limit frame 31 close to the driven bevel gear 38 through a bearing, and the active bevel gear 39 meshes with the driven bevel gear 38.

[0041] As can be seen from the above, the limit column 32 can be extended and retracted inside the limit frame 31, and the No. 3 hydraulic cylinder 34 can push the support plate 35 close to the ground, thereby achieving support for the entire device. The limit column 32 is extended and the support plate 35 is supported on the ground. This increases the force-bearing area of ​​the chassis of the crane 1 and lowers the center of gravity, thereby significantly enhancing the stability of the crane 1 during the lifting process. The screw rod 37 can drive the limit column 32 to move inside the limit frame 31 by rotating, and the driven bevel gear 38 plays a driving role, and the screw rod 37 is driven to rotate by rotating the driven bevel gear 38.

[0042] Specifically, a second servo motor 310 is installed on the top of the limit frame 31 near the active bevel gear 39 through a fixed seat. The output end of the second servo motor 310 is connected to the shaft transmission of the active bevel gear 39 through a coupling. Limiting grooves 311 are symmetrically provided on both sides of the limit frame 31. Limiting blocks 312 are movably installed inside the limit grooves 311. The limit blocks 312 are slidably fitted with the inner wall of the limit grooves 311, and the limit blocks 312 are fixedly connected to the limit column 32 near the inner side of the limit frame 31.

[0043] As can be seen from the above, the second servo motor 310 provides power output for the rotation of the screw rod 37, and the limit groove 311 and the limit block 312 can prevent the limit column 32 from escaping from the limit frame 31. In this embodiment, the number of support components 3 can be increased to further improve the stability of the device. For example, support components 3 are set in the four directions of front, back, left and right of the crane 1, which can greatly disperse the force on the chassis of the crane 1.

[0044] When in use, first start the No. 2 servo motor 310 to drive the active bevel gear 39 to rotate, and the active bevel gear 39 drives the driven bevel gear 38 and the screw 37 to rotate, thereby driving the limit column 32 to extend out of the limit frame 31. After the limit column 32 extends a sufficient length, the No. 2 servo motor 310 stops rotating and starts the No. 3 hydraulic cylinder 34. The No. 3 hydraulic cylinder 34 drives the support plate 35 to support it on the ground. At this time, the device is in a relatively stable state.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A PHC pile lifting device, characterized in that: include: A crane (1), wherein a boom (11) is disposed at the top of the crane (1), and two hooks (12) are connected to one side of the boom (11); A stabilizing assembly (2), the stabilizing assembly (2) comprising two mounting plates (21), one side of each of the two mounting plates (21) being movably mounted with a connecting shaft (22), one side of the connecting shaft (22) being fixedly mounted with a gear (23), one side of the gear (23) being movably mounted with a toothed plate (24), one side of the connecting shaft (22) being fixedly mounted with a swing plate (26), one side of the swing plate (26) being connected with a support plate (27), one side of the support plate (27) being fixedly mounted with a No. 2 hydraulic cylinder (28), an output end of the No. 2 hydraulic cylinder (28) being connected with a frame (210), two threaded blocks (212) being movably mounted inside the frame (210), one side of each of the two threaded blocks (212) being connected with an arc-shaped clamping plate (214); A support assembly (3), the support assembly (3) comprising a limit frame (31), a limit column (32) movably mounted inside the limit frame (31), a side plate (33) fixedly mounted on one side of the limit column (32), a No. 3 hydraulic cylinder (34) fixedly mounted on one side of the side plate (33), and a support plate (35) fixedly mounted on the output end of the No. 3 hydraulic cylinder (34).

2. A PHC pile lifting device according to claim 1, characterized in that: Mounting plates (21) are fixedly mounted on both sides of the boom (11); a connecting shaft (22) is movably mounted on one side of the mounting plate (21) via a bearing; a gear (23) is fixedly mounted on the outer side of the connecting shaft (22); a toothed plate (24) is movably mounted on the side of the mounting plate (21) close to the gear (23); the toothed plate (24) is meshed with the gear (23); a No. 1 hydraulic cylinder (25) is fixedly mounted on the side of the mounting plate (21) close to the geared plate (24); and an output end of the No. 1 hydraulic cylinder (25) is fixedly connected to the toothed plate (24).

3. A PHC pile lifting device according to claim 2, characterized in that: A swing plate (26) is fixedly mounted on one side of the connecting shaft (22), a support plate (27) is fixedly connected between the swing plates (26), two No. 2 hydraulic cylinders (28) are fixedly mounted on the side of the support plate (27) away from the swing plate (26), the two No. 2 hydraulic cylinders (28) are symmetrically arranged, a force-bearing plate (29) is movably mounted on the side of the No. 2 hydraulic cylinder (28) away from the support plate (27), and an output end of the No. 2 hydraulic cylinder (28) is fixedly connected to one side of the force-bearing plate (29).

4. A PHC pile lifting device according to claim 3, characterized in that: Two frames (210) are fixedly installed on the side of the force-bearing plate (29) away from the second hydraulic cylinder (28), and threaded rods (211) are movably installed inside the two frames (210) through bearings. The threaded rods (211) have two threaded sections with opposite rotation directions. The two threaded sections are respectively threadedly connected with a threaded block (212), and the threaded block (212) is slidably fitted with the inner wall of the frame (210).

5. A PHC pile lifting device according to claim 4, characterized in that: A connecting rod (213) is fixedly mounted on the side of the threaded block (212) away from the frame (210); an arc-shaped clamping plate (214) is fixedly mounted on one end of the connecting rod (213) away from the threaded block (212); a No. 1 servo motor (215) is mounted on one side of the frame (210) via a fixing seat; an output end of the No. 1 servo motor (215) is connected to the shaft of the threaded rod (211) via a coupling.

6. A PHC pile lifting device according to claim 1, characterized in that: Two limit frames (31) are symmetrically installed on both sides of the crane (1), and limit columns (32) are movably installed inside the two limit frames (31). The limit columns (32) are slidably fitted with the inner walls of the limit frames (31). A side plate (33) is fixedly installed at one end of the limit column (32) away from the crane (1), and a No. 3 hydraulic cylinder (34) is fixedly installed at the top of the side plate (33). A support plate (35) is movably installed on the side of the side plate (33) away from the No. 3 hydraulic cylinder (34), and the output end of the No. 3 hydraulic cylinder (34) passes through the side plate (33) and is fixedly connected to the support plate (35).

7. A PHC pile lifting device according to claim 6, characterized in that: A support plate (36) is fixedly installed inside the limit frame (31) near the crane (1), a screw rod (37) is screwed inside the limit column (32) through a thread, and one end of the screw rod (37) near the support plate (36) is movably connected to the support plate (36) through a bearing.

8. A PHC pile lifting device according to claim 7, characterized in that: A driven bevel gear (38) is movably mounted on the side of the support plate (36) away from the screw rod (37), and the driven bevel gear (38) is connected to the shaft of the screw rod (37) in a transmission manner. A driving bevel gear (39) is movably mounted on the side of the limit frame (31) close to the driven bevel gear (38) through a bearing, and the driving bevel gear (39) is meshed with the driven bevel gear (38).

9. A PHC pile lifting device according to claim 8, characterized in that: A second servo motor (310) is installed on the top of the limit frame (31) near the active bevel gear (39) through a fixing seat, and an output end of the second servo motor (310) is connected to the shaft of the active bevel gear (39) through a coupling.

10. A PHC pile lifting device according to claim 7, characterized in that: The limiting frame (31) has symmetrical limiting grooves (311) on both sides, and limiting blocks (312) are movably installed inside the limiting grooves (311). The limiting blocks (312) are slidably fitted with the inner walls of the limiting grooves (311), and the limiting blocks (312) are fixedly connected to the limiting pillars (32) on one side close to the inside of the limiting frame (31).

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