Pile-driving ship pile gripper with angle adaptive adjustment and working method thereof

Abstract

The invention discloses a pile gripper of a pile-driving ship with adaptive angle adjustment and a working method thereof, belonging to the field of pile grippers of pile-driving ships, comprising a pile gripper arranged on a hull, the hull being provided with a notch, the pile gripper being located above the notch, the pile gripper comprising a mounting seat, the mounting seat being fixed on one side of the notch, two holding arms being hinged on the mounting seat, first driving oil cylinders being hinged on both sides of the mounting seat, and a piston rod of the first driving oil cylinder being hinged to the holding arm; the invention also comprises four columns, the four columns being symmetrically distributed on both sides of the notch, a first fixing ring being fixed between the four columns, a plurality of second driving oil cylinders being evenly installed on the upper surface of the first fixing ring along the circumferential direction, and a push block being connected to the piston rod of the second driving oil cylinder; when the invention is performing a pile driving operation, the deflection of a steel pile can be conveniently and quickly found, and the verticality of the steel pile can be adjusted at any time to meet the construction requirements.

Description

Technical Field

[0001] The invention relates to the technical field of pile grippers for pile-driving ships, and in particular to a pile gripper for pile-driving ships with adaptive angle adjustment and a working method thereof. Background Art

[0002] A pile-driving ship generally includes a hull, outriggers and a pile-driving device. The outriggers are slidably mounted around the hull. When the pile-driving ship needs to be positioned, the outriggers are extended downward through an appropriate lifting mechanism until they reach the seabed and are supported on the foundation, providing support for the hull of the pile-driving ship so that the pile-driving ship can perform predetermined pile-driving operations. The pile-driving device includes a pile frame that can fix piles to position the piles, and sink the piles into predetermined positions in a predetermined area to form a pile foundation.

[0003] The pile gripper is one of the core equipment of the pile driving vessel. It is mainly used to ensure that the pile foundation is positioned according to the inclination angle required by the construction and that the pile is sunk smoothly during the pile sinking positioning stage. At present, the binding of the pile gripper on the steel pile by the pile driving vessel is mainly achieved by the control of the pile gripper arm by the hydraulic system. However, during the pile driving process, due to the complex working conditions of the pile driving vessel and the influence of waves, the steel pile is prone to shaking and tilting during the pile driving process, making it difficult to find the pile position, resulting in poor piling effect. Summary of the invention

[0004] The purpose of the present invention is to provide a pile gripper of a pile driving ship with adaptive angle adjustment and a working method thereof, so as to solve the following technical problems: although the existing pile gripper can fix steel piles, the steel piles are easily shaken and tilted by waves or other factors, thus affecting the pile driving effect.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A pile gripper of a pile-driving ship with angle adaptive adjustment comprises a pile gripper arranged on a hull, a notch is provided on the hull, the pile gripper is located above the notch, the pile gripper comprises a mounting seat, the mounting seat is fixed on one side of the notch, two gripping arms are hinged on the mounting seat, first driving oil cylinders are hinged on both sides of the mounting seat, and a piston rod of the first driving oil cylinder is hinged to the gripping arm;

[0007] It also includes four columns, which are symmetrically distributed on both sides of the recess, a first fixing ring is fixed between the four columns, a plurality of second driving cylinders are evenly installed on the upper surface of the first fixing ring along the circumferential direction, and the piston rods of the second driving cylinders are connected to push blocks.

[0008] As a further solution of the present invention: a plurality of positioning piles are arranged on the hull for fixing the hull in the sea.

[0009] As a further solution of the present invention: a plurality of mounting frames are evenly fixed on the upper surface of the first fixing ring along the circumferential direction, the mounting frames include two mounting rods, one end of the two mounting rods is fixed on the first fixing ring, the other ends of the two mounting rods are commonly fixed with a mounting plate, a first support tube is fixed on the upper surface of the mounting plate, a support cylinder is fixed on the top of the first support tube, a second support ring is commonly fixed between the plurality of support cylinders, a movable rod is movably sleeved in the support cylinder, a contact block is provided at one end of the movable rod, a pressure sensor is fixed on the side wall of the contact block away from the movable rod, and a first piston block is fixed at one end of the movable rod away from the contact block.

[0010] As a further solution of the present invention: a first touch switch is installed on the mounting plate, the first touch switch is located inside the first support tube, and the first support tube is connected to the support cylinder, the first touch switch is electrically connected to the second driving cylinder, a support block is fixed on the inner wall of the first support tube, a first spring is connected to the support block, a second piston block is connected to the top of the first spring, and a T-block is fixed to the lower surface of the second piston block.

[0011] As a further solution of the present invention: a second support tube is connected to the top of the support cylinder, a correction and warning mechanism is fixed to the top of the second support tube, the correction and warning mechanism includes a horizontal cylinder, a third piston block is arranged in the second support tube, a fourth piston block is arranged in the horizontal cylinder, hydraulic oil is arranged between the third piston block and the fourth piston block, and an observation window is arranged on the top wall of the horizontal cylinder.

[0012] As a further solution of the present invention: a limiting block is arranged in the second support tube, and the limiting block is located below the third piston block.

[0013] As a further solution of the present invention: an L-shaped block is fixed at one end of the horizontal cylinder, a second touch switch is installed on the L-shaped block, a push rod is movably connected to the side wall of the horizontal cylinder close to the L-shaped block, one end of the push rod is fixedly connected to the fourth piston block, a second spring is provided on the side of the fourth piston block away from the hydraulic oil, and a plurality of warning lights are also installed on the upper surface of the horizontal cylinder, and the warning lights are electrically connected to the second touch switch.

[0014] A working method of a pile-driving ship pile gripper with angle adaptive adjustment comprises the following steps:

[0015] S1. Drive the ship to the designated location, lower the positioning piles to the bottom of the seawater, and position the ship to prevent it from moving during operation;

[0016] S2. Use the lifting equipment to lift the steel pile, open the two holding arms, and lift the steel pile into the pile gripper with the lifting equipment;

[0017] S3, start the first driving cylinder to make the two holding arms clamp the steel pile, and use the pile hammer to perform the pile driving operation;

[0018] S4. By using the cooperation of multiple second driving cylinders, if the steel pile is found to be deflected, the verticality of the steel pile can be adjusted at any time to meet the construction requirements.

[0019] Beneficial effects of the present invention:

[0020] The present invention provides a pile gripper, a column, a first fixing ring, a second driving cylinder, a push block and other structures. When performing a pile driving operation, if a steel pile is found to be deflected, the verticality of the steel pile can be adjusted at any time to meet the construction requirements.

[0021] The present invention provides structures such as mounting rods, mounting plates, support tubes, movable rods, and pressure sensors. When the steel pile is deflected, no matter which side it tilts to, it will contact the corresponding pressure sensor. The pressure sensor is connected to the control center on the hull, so that the operator can find the deflection of the steel pile in time and quickly perform the correction operation.

[0022] The present invention is provided with a first touch switch, a support block, a first spring, a second piston block and a T-block. When the steel pile is deflected, the first piston block is pushed to move, and the support tube and the first support tube are in a sealed state. At this time, the air pressure increases, pushing the second piston block to move downward, thereby triggering the first touch switch and starting the second driving cylinder, so as to automatically adjust the verticality of the steel pile and realize adaptive adjustment.

[0023] The present invention can remind the staff to find out in time that the steel pile starts to tilt and the direction in which the steel pile tilts by setting a deviation correction warning mechanism. Even if part of the equipment is damaged, the staff can make manual adjustments in time to ensure the effect and accuracy of piling. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below in conjunction with the accompanying drawings.

[0025] Figure 1 is a schematic structural diagram of Embodiment 1 of the present invention;

[0026] Figure 2 It is a structural schematic diagram of the pile gripper of the present invention;

[0027] Figure 3 is a structural diagram of Embodiment 2 of the present invention;

[0028] Figure 4 It is a partial structural diagram of the second embodiment of the present invention;

[0029] Figure 5 It is a schematic diagram of the internal structure of the first support tube, the support cylinder and the horizontal cylinder of the present invention;

[0030] Figure 6 yes Figure 5 The enlarged view of point A in the middle;

[0031] Figure 7 It is a schematic diagram of the three-dimensional structure of the horizontally placed cylinder of the present invention.

[0032] In the figure: 1, hull; 2, positioning pile; 3, notch; 4, pile gripper; 401, mounting seat; 402, holding arm; 403, first driving cylinder; 5, column; 6, first fixing ring; 7, second driving cylinder; 8, push block; 9, mounting rod; 10, mounting plate; 11, first supporting tube; 1101, supporting block; 1102, first spring; 1103, second piston block; 1104, T-block; 12, supporting tube; 13, supporting Support ring; 14. Movable rod; 15. Contact block; 16. Pressure sensor; 17. First piston block; 18. First touch switch; 19. Second support tube; 20. Correction warning mechanism; 2001. Horizontal cylinder; 2002. Third piston block; 2003. Fourth piston block; 2004. Hydraulic oil; 2005. Push rod; 2006. L-shaped block; 2007. Second touch switch; 2008. Second spring; 2009. Warning light. DETAILED DESCRIPTION

[0033] 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. Embodiment 1

[0034] See also Figure 1-2 As shown, the present invention is a pile gripper of a pile-driving ship with angle adaptive adjustment, comprising a pile gripper 4 arranged on a hull 1, a notch 3 is provided on the hull 1, the pile gripper 4 is located above the notch 3, the pile gripper 4 comprises a mounting seat 401, the mounting seat 401 is fixed on one side of the notch 3, two holding arms 402 are hinged on the mounting seat 401, first driving cylinders 403 are hinged on both sides of the mounting seat 401, and the piston rod of the first driving cylinder 403 is hinged to the holding arm 402;

[0035] It also includes four columns 5, which are symmetrically distributed on both sides of the recess 3, a first fixing ring 6 is fixed between the four columns 5, a plurality of second driving cylinders 7 are evenly installed on the upper surface of the first fixing ring 6 along the circumferential direction, and the piston rod of the second driving cylinder 7 is connected to a push block 8.

[0036] A plurality of positioning piles 2 are arranged on the hull 1 for fixing the hull 1 in the sea.

[0037] Working principle: the hull 1 is driven to the designated position, the positioning pile 2 is lowered to the bottom of the sea water, the hull 1 is positioned to prevent the hull 1 from moving during operation, the steel pile is hoisted by the lifting equipment, the two holding arms 402 are opened, the lifting equipment hoists the steel pile into the pile gripper 4, the first driving cylinder 403 is started to make the two holding arms 402 clamp the steel pile, and the pile driving operation is carried out by the pile hammer, and the cooperation of multiple second driving cylinders 7 is used. If the steel pile is found to be skewed, the second driving cylinder 7 on the corresponding side is started to correct the deviation of the steel pile and reset it to meet the construction requirements. Embodiment 2

[0038] On the basis of the first embodiment, in order to facilitate the discovery of which side the steel pile is tilted so as to adjust and correct the deviation more quickly, in this embodiment, refer to Figure 2 , 3 A plurality of mounting frames are evenly fixed on the upper surface of the first fixing ring 6 along the circumferential direction, and the mounting frames include two mounting rods 9, one end of the two mounting rods 9 is fixed on the first fixing ring 6, and the other ends of the two mounting rods 9 are commonly fixed with a mounting plate 10, a first support tube 11 is fixed on the upper surface of the mounting plate 10, a support cylinder 12 is fixed on the top of the first support tube 11, and a second support ring 13 is commonly fixed between the plurality of support cylinders 12, a movable rod 14 is movably sleeved in the support cylinder 12, and a contact block 15 is provided at one end of the movable rod 14, and the contact block 15 A pressure sensor 16 is fixed on the side wall away from the movable rod 14, and a first piston block 17 is fixed on one end of the movable rod 14 away from the contact block 15; initially, the contact block 15 and the pressure sensor 16 are both at a certain distance from the steel pile, because a certain deflection error is allowed during pile driving. When the inclination angle of the steel pile is too large, the steel pile will contact the pressure sensor 16, which is connected to the control center on the hull 1. The corresponding pressure sensor 16 sends a signal, which can be used to know where the steel pile is inclined, thereby facilitating the adjustment of the verticality of the steel column.

[0039] See also Figure 4 , 56. A first touch switch 18 is installed on the mounting plate 10. The first touch switch 18 is located inside the first support tube 11, and the first support tube 11 is connected to the support tube 12. The first touch switch 18 is electrically connected to the second driving cylinder 7. A support block 1101 is fixed on the inner wall of the first support tube 11. A first spring 1102 is connected to the support block 1101. A second piston block 1103 is connected to the top of the first spring 1102. A T-shaped block 1104 is fixed to the lower surface of the second piston block 1103. The steel pile tilts and squeezes the contact block 15, so that the movable rod 1 4 and the first piston block 17 move, the support cylinder 12 and the first support tube 11 are in a sealed state, so that the air pressure increases, pushing the second piston block 1103 to move downward, and the T-block 1104 contacts the first touch switch 18, and the first touch switch 18 is electrically connected to the corresponding second driving cylinder 7, thereby starting the second driving cylinder 7 on this side, pushing the steel pile to reset. After the steel pile is reset, it no longer contacts with the contact block 15, and the air pressure in the support cylinder 12 returns to normal. Under the action of the air pressure and the first spring 1102, the first piston block 17 and the second piston block 1103 are also automatically reset.

[0040] See also Figure 4 , 5 7. The top of the support cylinder 12 is connected to a second support tube 19, and a correction warning mechanism 20 is fixed to the top of the second support tube 19. The correction warning mechanism 20 includes a horizontal cylinder 2001, a third piston block 2002 is arranged in the second support tube 19, a fourth piston block 2003 is arranged in the horizontal cylinder 2001, hydraulic oil 2004 is arranged between the third piston block 2002 and the fourth piston block 2003, and an observation window is arranged on the top wall of the horizontal cylinder 2001; by the same token, when the steel pile tilts to one side, the first piston block 17 on that side will also push the third piston block 2002 to move, and under the action of the hydraulic oil 2004, the fourth piston block 2003 moves in the horizontal cylinder 2001, and the staff located nearby can also determine the tilting direction of the steel pile by observing the movement of the fourth piston block 2003.

[0041] See also Figure 6 A limit block is provided in the second support tube 19, and the limit block is located below the third piston block 2002; the limit block can prevent the third piston block 2002 from falling from the second support tube 19, thereby preventing the hydraulic oil 2004 from leaking.

[0042] See also Figure 6, an L-shaped block 2006 is fixed at one end of the horizontal cylinder 2001, and a second touch switch 2007 is installed on the L-shaped block 2006. A push rod 2005 is movably connected to the side wall of the horizontal cylinder 2001 close to the L-shaped block 2006, and one end of the push rod 2005 is fixedly connected to the fourth piston block 2003. A second spring 2008 is arranged on the side of the fourth piston block 2003 away from the hydraulic oil 2004. A plurality of warning lights 2009 are also installed on the upper surface of the horizontal cylinder 2001, and the warning lights 2009 are electrically connected to the second touch switch 2007; when the fourth piston block 2003 moves, it drives the push rod 2005 to move. If the tilting amplitude is large, the push rod 2005 moves a large amplitude and contacts the second touch switch 2007, thereby activating the warning light 2009, and the corresponding warning light 2009 flashes, reminding the staff that the steel pile has a large deflection amplitude at this time, so that the staff can respond in time to avoid accidents.

[0043] A working method of a pile-driving ship pile gripper with angle adaptive adjustment comprises the following steps:

[0044] S1, driving the hull 1 to the designated position, lowering the positioning piles 2 to the bottom of the sea water, positioning the hull 1, and preventing the hull 1 from moving during operation;

[0045] S2. Use a lifting device to lift the steel pile, open the two holding arms 402, and lift the steel pile into the pile gripper 4 using the lifting device;

[0046] S3, start the first driving cylinder 403 to make the two embracing arms 402 clamp the steel pile, and use the pile hammer to perform the pile driving operation;

[0047] S4. By using the cooperation of multiple second driving cylinders 7, if the steel pile is found to be deflected, the verticality of the steel pile can be adjusted at any time to meet the construction requirements.

[0048] The working principle of the present invention is as follows: the hull 1 is driven to the designated position, the positioning pile 2 is lowered to the bottom of the sea water, the hull 1 is positioned to prevent the hull 1 from moving during operation, the steel pile is lifted by the lifting equipment, the two holding arms 402 are opened, the lifting equipment lifts the steel pile into the pile holder 4, the first driving cylinder 403 is started to clamp the steel pile by the two holding arms 402, and the pile driving operation is performed by using a pile hammer. Initially, the contact block 15 and the pressure sensor 16 are both at a certain distance from the steel pile. This is because a certain deflection error is allowed during pile driving. When the inclination angle of the steel pile is too large, the steel pile will contact the pressure sensor 16, and the pressure sensor 16 is connected to the control center on the hull 1. The corresponding pressure sensor 16 is connected to the control center on the hull 1. The device 16 sends a signal to know where the steel pile is tilted. The steel pile tilts and squeezes the contact block 15, so that the movable rod 14 and the first piston block 17 move. The support tube 12 and the first support tube 11 are in a sealed state, so that the air pressure increases, pushing the second piston block 1103 to move downward, and the T-block 1104 contacts the first touch switch 18. The first touch switch 18 is electrically connected to the corresponding second driving cylinder 7, thereby starting the second driving cylinder 7 on this side, pushing the steel pile to reset. After the steel pile is reset, it no longer contacts the contact block 15, and the air pressure in the support tube 12 returns to normal. Under the action of the air pressure and the first spring 1102, the first piston block 17 and the second piston block 1103 are also automatically reset;

[0049] Similarly, when the steel pile tilts to one side, the first piston block 17 on that side will also push the third piston block 2002 to move. Under the action of the hydraulic oil 2004, the fourth piston block 2003 moves in the horizontal cylinder 2001. The staff located nearby can also determine the tilting direction of the steel pile by observing the movement of the fourth piston block 2003. When the fourth piston block 2003 moves, it drives the push rod 2005 to move. If the tilt is large, the push rod 2005 moves a large amount and contacts the second touch switch 2007, thereby activating the warning light 2009. The corresponding warning light 2009 flashes, reminding the staff that the steel pile is deflected by a large amount at this time, so that the staff can respond in time to avoid accidents.

[0050] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A pile driver with an angle adaptive adjustment function, characterized in that: The pile gripper (4) comprises a pile gripper (4) arranged on a hull (1), wherein a notch (3) is formed on the hull (1), and the pile gripper (4) is located above the notch (3). The pile gripper (4) comprises a mounting seat (401), wherein the mounting seat (401) is fixed on one side of the notch (3), and wherein two gripping arms (402) are hingedly connected to the mounting seat (401), and wherein first driving cylinders (403) are hingedly connected to both sides of the mounting seat (401), and wherein a piston rod of the first driving cylinder (403) is hingedly connected to the gripping arms (402); It also comprises four columns (5), the four columns (5) are symmetrically distributed on both sides of the notch (3), a first fixing ring (6) is fixed between the four columns (5), a plurality of second driving cylinders (7) are evenly mounted on the upper surface of the first fixing ring (6) along the circumferential direction, and the piston rods of the second driving cylinders (7) are connected to push blocks (8); A plurality of mounting frames are evenly fixed to the upper surface of the first fixing ring (6) along the circumferential direction, the mounting frames comprising two mounting rods (9), one end of the two mounting rods (9) being fixed to the first fixing ring (6), the other ends of the two mounting rods (9) being commonly fixed to a mounting plate (10), a first support tube (11) being fixed to the upper surface of the mounting plate (10), a support cylinder (12) being fixed to the top of the first support tube (11), a second support ring (13) being commonly fixed between the plurality of support cylinders (12), a movable rod (14) being movably sleeved in the support cylinder (12), a contact block (15) being provided at one end of the movable rod (14), a pressure sensor (16) being fixed on a side wall of the contact block (15) away from the movable rod (14), and a first piston block (17) being fixed to one end of the movable rod (14) away from the contact block (15); A first touch switch (18) is installed on the mounting plate (10), the first touch switch (18) is located inside the first support tube (11), and the first support tube (11) is connected to the support tube (12), the first touch switch (18) is electrically connected to the second driving cylinder (7), a support block (1101) is fixed on the inner wall of the first support tube (11), a first spring (1102) is connected to the support block (1101), a second piston block (1103) is connected to the top of the first spring (1102), and a T-block (1104) is fixed to the lower surface of the second piston block (1103).

2. The pile gripper of a pile-driving ship with angle adaptive adjustment according to claim 1, characterized in that: A plurality of positioning piles (2) are arranged on the hull (1) and are used to fix the hull (1) in the sea.

3. The pile gripper of a pile-driving ship with angle adaptive adjustment according to claim 1, characterized in that: The top of the support cylinder (12) is connected to a second support tube (19), the top of the second support tube (19) is fixed with a deviation correction warning mechanism (20), the deviation correction warning mechanism (20) comprises a horizontal cylinder (2001), a third piston block (2002) is arranged in the second support tube (19), a fourth piston block (2003) is arranged in the horizontal cylinder (2001), hydraulic oil (2004) is arranged between the third piston block (2002) and the fourth piston block (2003), and an observation window is arranged on the top wall of the horizontal cylinder (2001).

4. The pile gripper of a pile-driving ship with angle adaptive adjustment according to claim 3, characterized in that: A limit block is arranged in the second support tube (19), and the limit block is located below the third piston block (2002).

5. The pile gripper of a pile-driving ship with angle adaptive adjustment according to claim 3, characterized in that: An L-shaped block (2006) is fixed to one end of the horizontal cylinder (2001), and a second touch switch (2007) is installed on the L-shaped block (2006). A push rod (2005) is movably connected to the side wall of the horizontal cylinder (2001) close to the L-shaped block (2006), and one end of the push rod (2005) is fixedly connected to a fourth piston block (2003). A second spring (2008) is arranged on the side of the fourth piston block (2003) away from the hydraulic oil (2004). A plurality of warning lights (2009) are also installed on the upper surface of the horizontal cylinder (2001), and the warning lights (2009) are electrically connected to the second touch switch (2007).

6. A working method of a pile driver with an angle adaptively adjustable pile gripper according to any one of claims 1 to 5, characterized in that: The following steps are involved: S1, driving the hull (1) to a designated position, lowering the positioning pile (2) to the bottom of the seawater, positioning the hull (1) to prevent the hull (1) from moving during operation; S2, using a lifting device to lift the steel pile, the two holding arms (402) are opened, and the lifting device lifts the steel pile into the pile gripper (4); S3, starting the first driving oil cylinder (403) to enable the two holding arms (402) to clamp the steel pile, and using the pile hammer to perform the pile driving operation; S4. Using the cooperation of the plurality of second driving cylinders (7), the deflection of the steel pile is detected and the verticality of the steel pile is adjusted at any time to meet the construction requirements.

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