Offshore steel pipe pile launching and turning device

Abstract

The utility model provides a device for offshore steel pipe pile delivery and turning over, including steel pipe column, the one end of steel pipe column is equipped with the hanging disc, the other end of steel pipe column is equipped with the pile fixing device, and the pile fixing device includes the rotating seat, is equipped with the rotating guide cylinder on the rotating seat, is equipped with locking column and a plurality of sliding open and close's snatch piece on the guide cylinder, and snatch piece is in abutment in steel pipe column inner wall, and the rotating seat is installed on the deck. The whole structure can be connected with the free end of steel pipe column quickly, avoids the rolling, sliding or rotating of one end of steel pipe column in the turning over process because of its dead weight and the undulation of ship machine deck surface, leads to the collision with personnel or other equipment, and the phenomenon of serious safety accidents such as equipment toppling, part splashing, personnel being extruded or colliding occurs.

Description

Technical Field

[0001] This utility model relates to the field of offshore construction, and in particular to a device for turning and turning offshore steel pipe piles. Background Technology

[0002] Steel pipe piles are key equipment in offshore pile driving construction. Guided by a pile driver from the hammering device of the pile driving vessel, the steel pipe piles are precisely driven into the seabed until they reach the designed depth. As marine engineering gradually moves towards deep-sea areas, pile diameter and length are gradually increasing. Taking offshore wind farm construction as an example, the diameter of steel pipe piles reaches 3.3m and the length exceeds 42m.

[0003] During construction, the steel pipe piles are typically placed horizontally on the deck of the construction vessel or work platform during storage and transportation. When in use, the steel pipe piles need to be lifted and turned vertically. Due to their weight and the undulations of the deck, it is difficult to maintain absolute flatness during this process. This can easily cause the free end of the steel pipe pile to roll, slide, or rotate, leading to collisions with other equipment on the deck. This can result in serious safety accidents such as equipment tipping over, flying parts, and personnel being crushed or impacted, posing a significant threat to the safety of construction workers and the smooth progress of construction. Utility Model Content

[0004] This utility model provides a device for turning and turning steel pipe piles at sea, which solves the problem that during the lifting and turning of steel pipe piles, the free end at the bottom of the steel pipe pile is prone to rolling, sliding or rotating, which can cause the steel pipe pile to collide with other equipment on the deck, resulting in serious safety accidents such as equipment tipping over, parts flying, and personnel being squeezed or hit.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a steel pipe pile driving and turning device for offshore steel pipe piles, including a steel pipe column, a lifting plate at one end of the steel pipe column, and a fixed pile device at the other end of the steel pipe column. The fixed pile device includes a rotating seat, a rotating guide cylinder on the rotating seat, a locking column and multiple sliding and opening gripping plates on the guide cylinder, the gripping plates abutting against the inner wall of the steel pipe column, and the rotating seat is installed on the deck.

[0006] In the preferred embodiment, one end of the steel pipe column is provided with a flange ring, the flange ring is provided with multiple first through holes, and the lifting platform is provided with lifting lugs and multiple second through holes.

[0007] In the preferred embodiment, a crane is provided on one side of the steel pipe column. The crane is connected to the lifting lug via a steel cable. Multiple bolts are provided on the steel pipe column, and the bolts pass through the first through hole and the second through hole.

[0008] In a preferred embodiment, the guide cylinder includes a cylinder body, one end of which is provided with a guide cone, the cylinder body is provided with a sliding hole, and the cylinder body is provided with a plurality of circumferentially arrayed sliding grooves.

[0009] In the preferred embodiment, support plates are provided on both sides of the bottom of the cylinder, one side of the support plate has a rounded corner surface, and a rotating shaft is provided on the support plate, which is rotatably connected to the rotating seat.

[0010] In the preferred embodiment, a side plate is provided on one side of the rotating seat, and the side plate is provided with multiple mounting holes. The side plate is installed on the deck.

[0011] In a preferred embodiment, one side of the bottom of the gripper is provided with an inclined surface, one side of the top of the gripper is provided with an arc-shaped surface, the gripper slides against the slide groove, and one side of the gripper is provided with a second arc-shaped surface.

[0012] In a preferred embodiment, the guide cylinder is provided with a sliding locking pin, which abuts against the sliding hole. The top of the sliding hole is a conical surface, which abuts against the inclined surface.

[0013] In the preferred embodiment, a hydraulic cylinder is provided at the bottom of the locking column, and the bottom of the hydraulic cylinder is connected to the guide cylinder.

[0014] The beneficial effects of this utility model are as follows: When the steel pipe column needs to be lifted and turned, the rotating seat is installed on one side of the steel pipe column and connected to the ship's deck. The guide cylinder of the fixed pile device is inserted into the steel pipe column, and the hydraulic cylinder is driven so that the locking column slides relative to the guide cylinder, so that the locking column pushes multiple gripping plates to open and close, so that multiple gripping plates abut against the inner wall of the steel pipe column.

[0015] The other end of the steel pipe column is connected to the lifting platform by multiple bolts, and the crane is connected to the lifting platform by steel cables. The crane is driven to rotate the steel pipe column relative to the pile fixing device, so that the steel pipe column is flipped from a horizontal position to a vertical position. The hydraulic cylinder is driven to release one end of the steel pipe column from the pile fixing device. The crane is then driven to move the steel pipe column away from the pile fixing device.

[0016] The overall structure can be quickly connected to the free end of the steel pipe column, preventing the steel pipe column from rolling, sliding, or rotating at one end during the overturning process due to its own weight and the undulation of the ship's deck, which could lead to collisions with personnel or other equipment, resulting in serious safety accidents such as equipment tipping over, parts flying, and personnel being squeezed or impacted. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is an axonometric view of the overall structure of this utility model; Figure 2 This is an exploded view of a partial structure of this utility model; Figure 3 This is an axonometric view of the pile fixing device of this utility model; Figure 4 This is a sectional view of the pile fixing device of this utility model; Figure 5 This is an exploded view of the piling device of this utility model; Figure 6 This is an axonometric view of a partial structure of this utility model; Figure 7 This is an axonometric view of the gripping blade of this utility model; In the diagram: 1. Steel pipe column; 101. Flange ring; 102. First through hole; 2. Lifting plate; 201. Second through hole; 202. Lifting lug; 3. Pile fixing device; 4. Guide cylinder; 401. Cylinder body; 402. Guide cone; 403. Sliding groove; 404. Support plate; 405. Rounded corner surface; 4051. Rotating shaft; 5. Gripping plate; 501. Limiting plate; 502. Inclined surface; 503. Arc surface; 504. Second arc surface; 6. Rotating seat; 601. Side plate; 602. Mounting hole; 7. Locking column; 701. Conical surface; 8. Hydraulic cylinder; 9. Bolt. Detailed Implementation

[0018] Example 1: like Figure 1-7 The present invention relates to a device for lifting and turning offshore steel pipe piles, comprising a steel pipe column 1, a lifting platform 2 at one end of the steel pipe column 1, and a pile fixing device 3 at the other end of the steel pipe column 1. The pile fixing device 3 includes a rotating seat 6, a rotating guide cylinder 4 on the rotating seat 6, a locking pin 7 and multiple sliding gripping plates 5 on the guide cylinder 4, the gripping plates 5 abutting against the inner wall of the steel pipe column 1, and the rotating seat 6 being mounted on the deck. With this structure, when the steel pipe column 1 needs to be lifted and turned, the rotating seat 6 is mounted on one side of the steel pipe column 1 and connected to the ship's deck. The guide cylinder 4 of the pile fixing device 3 is inserted into the steel pipe column 1, driving the hydraulic cylinder 8 to make the locking pin 7 slide relative to the guide cylinder 4, thereby causing the locking pin 7 to push the multiple gripping plates 5 to open and close, so that the multiple gripping plates 5 abut against the inner wall of the steel pipe column 1.

[0019] The other end of the steel pipe column 1 is connected to the hanging platform 2 by multiple bolts 9, and the crane is connected to the hanging platform 2 by steel cables. The crane is driven to rotate the steel pipe column 1 relative to the pile fixing device 3, so that the steel pipe column 1 is flipped from a horizontal state to a vertical state. The hydraulic cylinder 8 is driven to release one end of the steel pipe column 1 from the pile fixing device 3. The crane is then driven to move the steel pipe column 1 away from the pile fixing device 3.

[0020] The overall structure can be quickly connected to the free end of the steel pipe column 1, preventing the steel pipe column 1 from rolling, sliding or rotating at one end during the overturning process due to its own weight and the undulation of the ship's deck surface, which could lead to collisions with personnel or other equipment, resulting in serious safety accidents such as equipment tipping over, parts flying, and personnel being squeezed or hit.

[0021] In the preferred embodiment, one end of the steel pipe column 1 is provided with a flange ring 101, which has multiple first through holes 102. The lifting platform 2 is provided with lifting lugs 202 and multiple second through holes 201. With this structure, the lifting platform 2 is connected to the crane via the lifting lugs 202, and the lifting platform 2 is connected to the steel pipe column 1 via multiple bolts 9. The flange ring 101 is installed on the inner wall of one end of the steel pipe column 1.

[0022] In the preferred embodiment, a crane is provided on one side of the steel pipe column 1. The crane is connected to the lifting lug 202 via a steel cable. Multiple bolts 9 are provided on the steel pipe column 1. The bolts 9 pass through the first through hole 102 and the second through hole 201.

[0023] In a preferred embodiment, the guide cylinder 4 includes a cylinder body 401, a guide cone 402 at one end of the cylinder body 401, a sliding hole 404 inside the cylinder body 401, and multiple circumferentially arrayed sliding grooves 403 on the cylinder body 401. This structure, with the guide cone 402 at one end of the cylinder body 401, allows the guide cylinder 4 to easily extend into the steel pipe column 1. The locking pin 7 slides against the sliding hole 404.

[0024] In the preferred embodiment, support plates 405 are provided on both sides of the bottom of the cylinder 401. A rounded corner surface 4051 is provided on one side of the support plate 405, and a rotating shaft 406 is provided on the support plate 405. The rotating shaft 406 is rotatably connected to the rotating seat 6. With this structure, the rounded corner surface 4051 is on the support plate 405, and at the same time, the rounded corner surface 4051 is located on the side closer to the side plate 601. When the steel pipe column 1 is flipped to a vertical state, it is still flipping. If the flipping angle is too large, the rounded corner surface 4051 of the support plate 405 abuts against the side plate 601 of the rotating seat 6, restricting the steel pipe column 1 from continuing to flip, thus ensuring the safety of the overall structure.

[0025] In a preferred embodiment, the rotating seat 6 has a side plate 601 on one side, and the side plate 601 has multiple mounting holes 602. The side plate 601 is installed on the deck. With this structure, when the steel pipe column 1 needs to be lifted and turned, the rotating seat 6 is installed on one side of the steel pipe column 1, and the rotating seat 6 is connected to the hull deck. The rotating seat 6 can be connected to the deck through the mounting holes 602 on the side plate 601, with a second bolt passing through the mounting holes 602 and the deck. Alternatively, the rotating seat 6 can be supported against the side plate 601 by a counterweight, and the weight of the counterweight will connect the rotating seat 6 to the deck.

[0026] In a preferred embodiment, the gripping piece 5 has an inclined surface 502 on one side of its bottom and an arc-shaped surface 503 on one side of its top. The gripping piece 5 slides against the sliding groove 403, and a second arc-shaped surface 504 is provided on one side of the gripping piece 5. With this structure, the conical surface 701 of the locking column 7 rests against the inclined surface 502 of the gripping piece 5. The arc-shaped surface 503 on one side of the top of the gripping piece 5 allows the gripping piece 5 to slide easily towards the center of the guide cylinder 4 when the arc-shaped surface 503 abuts against the inner wall of the steel pipe column 1 and the locking column 7 is in a retracted state, thus allowing the multiple gripping pieces 5 to retract.

[0027] A second arc-shaped surface 504 is provided on one side of the gripping piece 5. When the gripping piece 5 extends to its farthest position, the second arc-shaped surface 504 abuts against the inner wall of the sliding hole 404 to prevent the gripping piece 5 from sliding out of the guide cylinder 4, so that the limiting piece 501 can play a limiting role.

[0028] In a preferred embodiment, the guide cylinder 4 is provided with a sliding locking pin 7, which abuts against a sliding hole 404. The top of the sliding hole 404 is a conical surface 701, which abuts against an inclined surface 502. With this structure, the conical surface 701 abuts against the inclined surface 502. The hydraulic cylinder 8 is driven to make the locking pin 7 slide relative to the guide cylinder 4, thereby causing the locking pin 7 to push multiple gripping pieces 5 to open and close, so that the multiple gripping pieces 5 abut against the inner wall of the steel pipe column 1.

[0029] In a preferred embodiment, a hydraulic cylinder 8 is provided at the bottom of the locking pin 7, and the bottom of the hydraulic cylinder 8 is connected to the bottom of the guide cylinder 4. With this structure, the bottom of the hydraulic cylinder 8 is connected to the bottom of the guide cylinder 4.

[0030] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A pile driving and turning device for offshore steel pipe piles, characterized in that: The steel pipe column (1) is provided with a hanging plate (2) at one end and a pile fixing device (3) at the other end. The pile fixing device (3) includes a rotating seat (6), a rotating guide cylinder (4) is provided on the rotating seat (6), a locking column (7) and multiple sliding and opening gripping plates (5) are provided on the guide cylinder (4), the gripping plates (5) abut against the inner wall of the steel pipe column (1), and the rotating seat (6) is installed on the deck.

2. The device for turning and rotating offshore steel pipe piles according to claim 1, characterized in that: The steel pipe column (1) has a flange ring (101) at one end, and the flange ring (101) has multiple first through holes (102). The lifting plate (2) has a lifting lug (202) and multiple second through holes (201).

3. The device for turning and turning marine steel pipe piles according to claim 2, characterized in that: A crane is provided on one side of the steel pipe column (1). The crane is connected to the lifting lug (202) by a steel cable. Multiple bolts (9) are provided on the steel pipe column (1). The bolts (9) pass through the first through hole (102) and the second through hole (201).

4. The device for turning and turning marine steel pipe piles according to claim 1, characterized in that: The guide cylinder (4) includes a cylinder body (401), a guide cone (402) is provided at one end of the cylinder body (401), a sliding hole (404) is provided inside the cylinder body (401), and multiple circumferentially arrayed sliding grooves (403) are provided on the cylinder body (401).

5. The device for turning and turning marine steel pipe piles according to claim 4, characterized in that: Support plates (405) are provided on both sides of the bottom of the cylinder (401). A rounded corner surface (4051) is provided on one side of the support plate (405). A rotating shaft (406) is provided on the support plate (405). The rotating shaft (406) is rotatably connected to the rotating seat (6).

6. The device for turning and turning marine steel pipe piles according to claim 1, characterized in that: The rotating seat (6) has a side plate (601) on one side, and the side plate (601) has multiple mounting holes (602). The side plate (601) is installed on the deck.

7. The device for turning and turning marine steel pipe piles according to claim 1, characterized in that: The gripper (5) has a sloping surface (502) on one side of its bottom and an arc surface (503) on one side of its top. The gripper (5) slides against the slide groove (403) and has a second arc surface (504) on one side of its side.

8. The pile driving and turning device for offshore steel pipe piles according to claim 1, characterized in that: The guide cylinder (4) is provided with a sliding locking pin (7), which abuts against the sliding hole (404). The top of the sliding hole (404) is a conical surface (701), which abuts against the inclined surface (502).

9. The pile driving and turning device for offshore steel pipe piles according to claim 8, characterized in that: The bottom of the locking column (7) is equipped with a hydraulic cylinder (8), and the bottom of the hydraulic cylinder (8) is connected to the guide cylinder (4).

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