Pile gripper mounted on self-elevating platform

Abstract

The utility model relates to the technical field of pile grippers, in particular to a pile gripper mounted on a self-elevating platform, which comprises a guide sleeve, an upright post slidably arranged in the guide sleeve, a lifting component arranged between the guide sleeve and the upright post and used for driving the guide sleeve and the upright post to move relatively, a hoop component arranged on the upright post, and a hoop component arranged on the hoop component. The hoop assembly is used for embracing a pile, an adjusting seat is arranged on one side of the guide sleeve, a fixing seat is arranged on the side, away from the guide sleeve, of the adjusting seat, a plurality of telescopic frames are arranged between the adjusting seat and the fixing seat, each telescopic frame comprises a telescopic shaft, a set of telescopic arms and a telescopic seat, and the telescopic shafts are rotationally connected with the adjusting seats. One end of the telescopic arm is rotationally connected with the telescopic shaft, the other end of the telescopic arm is movably connected with the telescopic seat, and the telescopic seat is fixedly connected with the fixed seat. The pile sinking device has the effects of conveniently adjusting the positions of the arm claws and reducing the pile sinking operation cost of the pile body.

Description

Technical Field

[0001] The utility model relates to the technical field of pile grippers, in particular to a pile gripper installed on a self-elevating platform. Background Art

[0002] At present, offshore wind power is a new trend in the development of the wind power industry. In the offshore steel pipe pile driving project, there will be some water surface facilities connected with corresponding columnar equipment. Pile grippers are usually used for installation and connection to overcome the problem that the columnar equipment will be affected by water surface shaking.

[0003] In the related art, a Chinese patent with authorization announcement number CN212248240U provides a lifting frame device for a pile gripper, which includes a set of guide sleeves, columns are inserted into the guide sleeves, a set of arm claws of the pile gripper are movably arranged between the columns, a lifting rack is installed on the column, a synchronous motor is fixedly arranged on the guide sleeve, a reducer is fixedly arranged on the output shaft of the synchronous motor, and the gear on the reducer is meshed with the lifting rack. When the synchronous motor is started, the gear on the reducer rotates, and the rotation of the gear drives the lifting rack to move, so that the column moves along the guide sleeve, and the lifting effect of the pile gripper is achieved.

[0004] In the process of implementing the present application, the inventors found that there are at least the following problems in the technology: when the pile gripper is in the lifting mode, the arm claw can only be adjusted in height in the vertical direction, while the horizontal distance between the arm claw and the hull is fixed. After the pile gripper on the self-elevating platform ship completes the pile sinking operation of a pile, in order to adapt to the piles in different horizontal installation positions, the position of the arm claw is adjusted by moving the self-elevating platform ship. Since the self-elevating platform ship stands on the seabed through pile legs, the horizontal position adjustment of the pile gripper is complicated, which increases the cost of the pile sinking operation. Utility Model Content

[0005] In order to facilitate the adjustment of the arm claw position and reduce the cost of pile sinking operations, the present application provides a pile gripper installed on a self-elevating platform.

[0006] The present application provides a pile gripper installed on a self-elevating platform, which adopts the following technical solution:

[0007] A pile gripper installed on a self-elevating platform comprises a guide sleeve, a column is slidably arranged in the guide sleeve, a lifting assembly is arranged between the guide sleeve and the column, the lifting assembly is used to drive the guide sleeve and the column to move relative to each other, a clamping hoop assembly is arranged on the column, the clamping hoop assembly is used to grip the pile, an adjusting seat is arranged on one side of the guide sleeve, a fixed seat is arranged on the side of the adjusting seat away from the guide sleeve, a plurality of telescopic frames are arranged between the adjusting seat and the fixed seat, the telescopic frames comprise a telescopic shaft, a group of telescopic arms and a telescopic seat, the telescopic shaft is rotatably connected to the adjusting seat, one end of the telescopic arm is rotatably connected to the telescopic shaft, the other end of the telescopic arm is movably connected to the telescopic seat, and the telescopic seat is fixedly connected to the fixed seat.

[0008] By adopting the above technical scheme, the fixed seat is installed on the self-elevating platform ship. When the height of the clamp assembly is adjusted, the guide sleeve and the column are driven to move relative to each other through the lifting assembly, so that the column drives the clamp assembly to move, thereby achieving the effect of adjusting the height of the clamp assembly. After the clamp assembly completes the pile sinking operation of a pile body, in order to adapt to the pile body at different horizontal installation positions, the telescopic arm and the telescopic seat are moved, so that the telescopic arm between the telescopic shaft and the telescopic block is relatively rotated, thereby adjusting the distance between the fixed seat and the adjustment seat, thereby achieving the effect of adjusting the horizontal distance between the clamp assembly and the hull. When the self-elevating platform ship stands on the seabed through the pile legs, it is convenient to adjust the position of the arm claw, reduce the situation where the clamp assembly is driven to move by the movement of the self-elevating platform ship, and reduce the cost of pile sinking operations.

[0009] Preferably, a telescopic slot is provided on the telescopic seat, a group of telescopic blocks are slidably arranged in the telescopic slot, one of the telescopic blocks is rotatably connected to one of the telescopic arms, and the other telescopic block is rotatably connected to the other telescopic arm.

[0010] By adopting the above technical solution, the telescopic block moves along the telescopic groove to drive one end of the telescopic arm to move, thereby achieving an effect of active connection between the telescopic arm and the telescopic seat.

[0011] Preferably, a telescopic motor is fixedly arranged in the telescopic slot, a forward screw is fixedly arranged on the output shaft of the telescopic motor, a reverse screw is fixedly arranged on the end of the forward screw away from the telescopic motor, and the end of the reverse screw away from the forward screw is rotatably connected to the inner wall of the telescopic slot, the forward screw and the reverse screw are both located in the telescopic slot, one of the telescopic blocks is threadedly connected to the forward screw, and the other telescopic block is threadedly connected to the reverse screw.

[0012] By adopting the above technical solution, the telescopic motor drives the forward screw and the reverse screw to rotate, so that a group of telescopic blocks rotate relatively in the telescopic slot, and then a group of telescopic arms between the telescopic seat and the telescopic shaft rotate synchronously.

[0013] Preferably, the lifting assembly includes a lifting rack, a lifting gear and a lifting shaft, the lifting shaft is rotatably arranged in a guide sleeve, the lifting gear is sleeved on the lifting shaft, the lifting gear is fixedly connected to the lifting shaft, the lifting rack is fixedly connected to the column, the lifting rack is inserted in the guide sleeve, and the lifting rack and the lifting gear are meshed with each other.

[0014] By adopting the above technical solution, the lifting shaft rotates to drive the lifting gear to rotate, the lifting gear rotates to drive the lifting rack to move, and the movement of the lifting rack drives the column to move along the guide sleeve.

[0015] Preferably, the lifting assembly further comprises a lifting motor, the lifting motor is fixedly arranged on the guide sleeve, and the output shaft of the lifting motor is fixedly connected to the lifting shaft.

[0016] By adopting the above technical solution, the lifting motor starts to drive the lifting shaft to rotate.

[0017] Preferably, the clamp assembly comprises a fixed beam and a group of arm claws, the fixed beam is fixedly connected to the column, the arm claws are symmetrically arranged on the fixed beam, and the arm claws are rotatably connected to the fixed beam.

[0018] By adopting the above technical solution, the arm claw and the fixed beam are caused to rotate relative to each other, so that the arm claw embraces the pile body.

[0019] Preferably, a group of clamp motors are fixedly arranged on the fixed beam, wherein the output shaft of one of the clamp motors is fixedly connected to one of the arm claws, and the output shaft of the other clamp motor is fixedly connected to the other arm claw.

[0020] By adopting the above technical solution, the clamp motor starts to drive the arm claw to rotate.

[0021] Preferably, a group of motor slots are opened on the fixed beam, wherein one of the clamp motors is fixedly arranged in one of the motor slots, and the other of the clamp motors is fixedly arranged in the other motor slot, wherein one of the arm claws closes one of the motor slots, and the other of the arm claws closes the other motor slot.

[0022] By adopting the above technical solution, the clamp motor is enclosed in the motor slot to protect the clamp motor, and the fixed beam supports the arm claw to reduce the pressure on the clamp motor, thereby extending the service life of the clamp motor.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. By setting the guide sleeve, column, lifting assembly, hoop assembly, adjustment seat, fixed seat, telescopic frame, telescopic shaft, telescopic arm and telescopic seat, the effect of adjusting the horizontal distance between the hoop assembly and the hull is achieved. When the jack-up platform stands on the seabed through the pile legs, it is convenient to adjust the position of the arm claw, reduce the situation of the hoop assembly moving due to the movement of the jack-up platform, and reduce the cost of pile sinking operation;

[0025] 2. The telescopic arm and the telescopic seat are movably connected by setting a telescopic slot, a telescopic block, a telescopic motor, a forward screw and a reverse screw;

[0026] 3. By setting the lifting rack, lifting gear, lifting shaft and lifting motor, the effect of the column moving along the guide sleeve is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of a pile gripper installed on a self-elevating platform in an embodiment of the present application.

[0028] Figure 2 It is a cross-sectional view showing the connection relationship between the telescopic arm and the telescopic seat in the embodiment of the present application.

[0029] Figure 3 It is a cross-sectional view showing the connection relationship between the guide sleeve and the column in the embodiment of the present application.

[0030] Figure 4 It is a cross-sectional view showing the connection relationship between the lifting motor and the lifting gear in the embodiment of the present application.

[0031] Figure 5 It is a schematic diagram showing the position relationship between the fixed beam and the arm claw in the embodiment of the present application.

[0032] Figure 6 It is a cross-sectional view showing the positional relationship between the clamp motor and the arm claw in the embodiment of the present application.

[0033] Explanation of the reference numerals in the accompanying drawings: 1. guide sleeve; 2. column; 3. lifting assembly; 31. lifting rack; 32. lifting gear; 33. lifting shaft; 34. lifting motor; 4. clamp assembly; 41. fixed beam; 42. arm claw; 43. clamp motor; 431. motor slot; 5. adjustment seat; 6. fixed seat; 7. telescopic frame; 71. telescopic shaft; 72. telescopic arm; 721. telescopic block; 73. telescopic seat; 731. telescopic slot; 8. telescopic motor; 81. forward screw rod; 82. reverse screw rod. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-6 This application is described in further detail.

[0035] The present application embodiment discloses a pile gripper installed on a self-elevating platform. Figures 1 to 4, including a guide sleeve 1, in which a column 2 is slidably arranged. A lifting assembly 3 is installed between the guide sleeve 1 and the column 2, and the lifting assembly 3 is used to drive the guide sleeve 1 and the column 2 to move relative to each other. A hoop assembly 4 is installed on the column 2, and the hoop assembly 4 is used to hold the pile. An adjustment seat 5 is installed on one side of the guide sleeve 1, and a fixed seat 6 is arranged on the side of the adjustment seat 5 away from the guide sleeve 1, and the fixed seat 6 is installed on the self-elevating platform ship. A plurality of telescopic frames 7 are installed between the adjustment seat 5 and the fixed seat 6, and the telescopic frames 7 include a telescopic shaft 71, a group of telescopic arms 72 and a telescopic seat 73. The telescopic shaft 71 is rotatably connected to the adjustment seat 5, one end of the telescopic arm 72 is rotatably connected to the telescopic shaft 71, the other end of the telescopic arm 72 is movably connected to the telescopic seat 73, and the telescopic seat 73 is fixedly connected to the fixed seat 6. When the height of the hoop assembly 4 is adjusted, the guide sleeve 1 and the column 2 are driven to move relative to each other through the lifting assembly 3, and the column 2 drives the hoop assembly 4 to move, so as to achieve the effect of adjusting the height of the hoop assembly 4. When the hoop assembly 4 completes the pile sinking operation of a pile body, in order to adapt to the pile bodies at different horizontal installation positions, the telescopic arm 72 and the telescopic seat 73 move, so that the telescopic arm 72 between the telescopic shaft 71 and the telescopic block 721 rotates relatively, thereby adjusting the distance between the fixed seat 6 and the adjustment seat 5, and achieving the effect of adjusting the horizontal distance between the hoop assembly 4 and the hull. When the jack-up platform ship stands on the seabed through the pile legs, it is convenient to adjust the position of the arm claw 42, reduce the situation of driving the movement of the hoop assembly 4 by the movement of the jack-up platform ship, and reduce the cost of pile sinking operations.

[0036] Reference Figure 1 and Figure 2 , a telescopic slot 731 is formed on the telescopic seat 73, and a group of telescopic blocks 721 are slidably arranged in the telescopic slot 731, wherein one telescopic block 721 is rotatably connected to one of the telescopic arms 72, and the other telescopic block 721 is rotatably connected to the other telescopic arm 72. A telescopic motor 8 is fixedly arranged in the telescopic slot 731, and a forward screw 81 is installed on the output shaft of the telescopic motor 8, and a reverse screw 82 is installed on the end of the forward screw 81 away from the telescopic motor 8, and the end of the reverse screw 82 away from the forward screw 81 is rotatably connected to the inner wall of the telescopic slot 731. The forward screw 81 and the reverse screw 82 are both located in the telescopic slot 731, wherein one telescopic block 721 is threadedly connected to the forward screw 81, and the other telescopic block 721 is threadedly connected to the reverse screw 82. The telescopic motor 8 drives the forward screw 81 and the reverse screw 82 to rotate, so that a group of telescopic blocks 721 rotates relatively in the telescopic slot 731, and then a group of telescopic arms 72 between the telescopic seat 73 and the telescopic shaft 71 rotate synchronously.

[0037] In order to achieve the effect of column 2 moving along guide sleeve 1, refer to Figures 1 to 4The lifting assembly 3 includes a lifting rack 31, a lifting gear 32, a lifting shaft 33 and a lifting motor 34. The lifting motor 34 is mounted on the guide sleeve 1, and the output shaft of the lifting motor 34 is welded to the lifting shaft 33. The lifting shaft 33 is rotatably arranged in the guide sleeve 1, and the lifting gear 32 is sleeved on the lifting shaft 33, and the lifting gear 32 is welded to the lifting shaft 33. The lifting rack 31 is welded to the column 2, the lifting rack 31 is inserted in the guide sleeve 1, and the lifting rack 31 and the lifting gear 32 are meshed with each other. The lifting motor 34 is started to drive the lifting shaft 33 to rotate, the lifting shaft 33 rotates to drive the lifting gear 32 to rotate, the lifting gear 32 rotates to drive the lifting rack 31 to move, and the movement of the lifting rack 31 drives the column 2 to move along the guide sleeve 1.

[0038] In order to achieve the effect of holding the pile, refer to Figures 1 to 6 The clamp assembly 4 includes a fixed beam 41 and a group of arm claws 42. The fixed beam 41 is fixedly connected to the column 2, and the arm claws 42 are symmetrically installed on the fixed beam 41. A group of motor slots 431 are opened on the fixed beam 41, and the motor slots 431 are located below the arm claws 42. One arm claw 42 closes one of the motor slots 431, and the other arm claw 42 closes the other motor slot 431. The clamp motor 43 is installed in each motor slot 431, and the output shaft of the clamp motor 43 is welded to the arm claw 42. The clamp motor 43 is enclosed in the motor slot 431 to protect the clamp motor 43. The fixed beam 41 supports the arm claw 42, reduces the pressure on the clamp motor 43, and thus prolongs the service life of the clamp motor 43. The clamp motor 43 starts to drive the arm claw 42 to rotate, so that the arm claw 42 and the fixed beam 41 rotate relative to each other, and then the arm claw 42 holds the pile body.

[0039] The implementation principle of a pile gripper installed on a self-elevating platform in the embodiment of the present application is as follows: when adjusting the height of the arm claw 42, the lifting motor 34 starts to drive the guide sleeve 1 and the column 2 to move relative to each other, and the column 2 drives the arm claw 42 on the fixed beam 41 to move, thereby achieving the effect of adjusting the height of the arm claw 42. After the pile body between the arm claws 42 completes the pile sinking operation, in order to adapt to the pile body at different horizontal installation positions, the telescopic motor 8 is started to rotate the telescopic arm 72 between the telescopic shaft 71 and the telescopic seat 73, thereby adjusting the distance between the fixed seat 6 and the adjustment seat 5, thereby achieving the effect of adjusting the horizontal distance between the arm claw 42 and the hull. When the self-elevating platform ship stands on the seabed through the pile legs, it is convenient to adjust the position of the arm claw 42, reduce the situation of driving the arm claw 42 to move by the movement of the self-elevating platform ship, and reduce the cost of pile sinking operations.

[0040] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A pile gripper installed on a self-elevating platform, comprising a guide sleeve (1), a column (2) slidably arranged in the guide sleeve (1), a lifting assembly (3) arranged between the guide sleeve (1) and the column (2), the lifting assembly (3) being used to drive the guide sleeve (1) and the column (2) to move relative to each other, a hoop assembly (4) being arranged on the column (2), the hoop assembly (4) being used to grip the pile, characterized in that: An adjusting seat (5) is arranged on one side of the guide sleeve (1), a fixed seat (6) is arranged on the side of the adjusting seat (5) away from the guide sleeve (1), a plurality of telescopic frames (7) are arranged between the adjusting seat (5) and the fixed seat (6), the telescopic frames (7) comprising a telescopic shaft (71), a group of telescopic arms (72) and a telescopic seat (73), the telescopic shaft (71) being rotatably connected to the adjusting seat (5), one end of the telescopic arm (72) being rotatably connected to the telescopic shaft (71), the other end of the telescopic arm (72) being movably connected to the telescopic seat (73), and the telescopic seat (73) being fixedly connected to the fixed seat (6).

2. A pile gripper installed on a self-elevating platform according to claim 1, characterized in that: A telescopic slot (731) is provided on the telescopic seat (73), and a group of telescopic blocks (721) are slidably arranged in the telescopic slot (731), wherein one of the telescopic blocks (721) is rotatably connected to one of the telescopic arms (72), and the other telescopic block (721) is rotatably connected to the other telescopic arm (72).

3. A pile gripper installed on a self-elevating platform according to claim 2, characterized in that: A telescopic motor (8) is fixedly arranged in the telescopic slot (731), a forward screw rod (81) is fixedly arranged on the output shaft of the telescopic motor (8), a reverse screw rod (82) is fixedly arranged on one end of the forward screw rod (81) away from the telescopic motor (8), and one end of the reverse screw rod (82) away from the forward screw rod (81) is rotatably connected to the inner wall of the telescopic slot (731), the forward screw rod (81) and the reverse screw rod (82) are both located in the telescopic slot (731), one of the telescopic blocks (721) is threadedly connected to the forward screw rod (81), and the other of the telescopic blocks (721) is threadedly connected to the reverse screw rod (82).

4. The pile gripper installed on a self-elevating platform according to claim 1, characterized in that: The lifting assembly (3) comprises a lifting rack (31), a lifting gear (32) and a lifting shaft (33); the lifting shaft (33) is rotatably arranged in a guide sleeve (1); the lifting gear (32) is sleeved on the lifting shaft (33); the lifting gear (32) is fixedly connected to the lifting shaft (33); the lifting rack (31) is fixedly connected to the column (2); the lifting rack (31) is inserted in the guide sleeve (1); and the lifting rack (31) and the lifting gear (32) are meshed with each other.

5. A pile gripper installed on a self-elevating platform according to claim 4, characterized in that: The lifting assembly (3) further comprises a lifting motor (34), wherein the lifting motor (34) is fixedly arranged on the guide sleeve (1), and an output shaft of the lifting motor (34) is fixedly connected to the lifting shaft (33).

6. The pile gripper installed on a self-elevating platform according to claim 1, characterized in that: The clamp assembly (4) comprises a fixed beam (41) and a group of arm claws (42); the fixed beam (41) is fixedly connected to the column (2); the arm claws (42) are symmetrically arranged on the fixed beam (41); and the arm claws (42) are rotatably connected to the fixed beam (41).

7. A pile gripper installed on a self-elevating platform according to claim 6, characterized in that: A group of clamp motors (43) are fixedly arranged on the fixed beam (41), wherein the output shaft of one of the clamp motors (43) is fixedly connected to one of the arm claws (42), and the output shaft of the other clamp motor (43) is fixedly connected to the other arm claw (42).

8. A pile gripper installed on a self-elevating platform according to claim 7, characterized in that: A group of motor slots (431) are provided on the fixed beam (41), one of the clamp motors (43) is fixedly arranged in one of the motor slots (431), and another of the clamp motors (43) is fixedly arranged in another of the motor slots (431); one of the arm claws (42) closes one of the motor slots (431), and another of the arm claws (42) closes another of the motor slots (431).

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