Continuous pile washing system of offshore platform

Abstract

The invention provides an offshore platform continuous pile washing system, and relates to the technical field of offshore hose winches, the offshore platform continuous pile washing system comprises a fixing frame, empty grooves are formed in the middle positions of the surfaces of left and right side plates of the fixing frame, two connecting plates of U-shaped structures are installed on the left and right sides of a bottom plate of the fixing frame respectively, and auxiliary fixing mechanisms are rotatably connected to the interiors of the connecting plates; the upper ends of left and right side plates of the fixing frame are respectively provided with a bearing seat. According to the invention, the protective cap is located right above the locking screw rod, glue can be coated between the protective cap and the fixed seat, external seawater and other substances are prevented from entering the mounting hole, and the limiting strip in the protective cap is clamped between the second clamping groove and the first clamping groove, so that the locking screw rod can be prevented from being accidentally loosened, and a further locking effect is achieved; the problems that all pile washing-out connectors of a pile washing-out hose need to be switched, bolts used for fixing are prone to loosening, and the bolts are corroded after external silt or seawater enters the bolts and screw holes are solved.

Description

Technical Field

[0001] The invention relates to the technical field of offshore hose winches, in particular to an offshore platform continuous pile driving system. Background Art

[0002] As the world continues to develop and utilize marine resources, offshore platforms play a vital role in many fields such as offshore oil extraction, offshore wind power generation, and cross-sea bridge construction. In the construction process of offshore platforms, the construction of pile foundations is an extremely critical link, and its quality is directly related to whether the offshore platforms can operate safely and stably in the future.

[0003] However, the existing pile punching system still has the following two shortcomings: First, during the pile driving operation, the pile legs move up and down relative to the pile fixing chamber, so the pile driving hose needs to be replaced for each pile driving joint, which requires a lot of manpower and time. This not only makes the entire pile driving operation time-consuming, seriously slowing down the construction period of the offshore platform, but also increases the manpower and material costs and reduces the construction efficiency; Secondly, the wind and waves at sea are strong, and the fixing frame will vibrate when the piles are driven. At this time, the bolts used for fixing are prone to loosening. In addition, after the external mud or seawater enters the bolts and screw holes, it will also cause corrosion to the bolts. Summary of the invention

[0004] In view of this, the present invention provides an offshore platform continuous pile driving system to solve the problem that the pile driving hose needs to be replaced for each pile driving joint, and the bolts used for fixing are prone to loosening, and the external mud or seawater enters the bolts and screw holes, causing corrosion to the bolts.

[0005] The present invention provides the purpose and effect of a continuous pile driving system for an offshore platform, which specifically includes: a fixing frame; An empty groove is provided in the middle of the surfaces of the left and right side plates of the fixing frame, two U-shaped connecting plates are respectively installed on the left and right sides of the bottom plate of the fixing frame, the inner rotation of the connecting plates is connected with an auxiliary fixing mechanism, a bearing seat is respectively installed on the upper ends of the left and right side plates of the fixing frame, and a fixing plate is also installed on the upper end surface of the left side plate of the fixing frame; A hollow shaft, wherein the hollow shaft is rotatably connected between the two bearing seats, a rotary joint is installed at each end of the hollow shaft, and a first water pipe is installed at the end of the rotary joint; A driving motor, wherein the driving motor is mounted on the outer end surface of the fixing plate, the front end of the driving motor is drivingly connected to a driving shaft, and the end of the driving shaft is fixedly mounted with a driving gear; A lifting plate, wherein the main body of the lifting plate is a long strip structure, a connecting horizontal plate is installed at the left and right ends of the lifting plate respectively, and two pressing plates are fixedly installed on the upper end surface of the lifting plate, and the upper end surface of the pressing plate is an arc-shaped structure; The wire drum has a hollow sleeve in the middle, and the sleeve is sleeved on the outside of the hollow shaft.

[0006] Furthermore, the auxiliary fixing mechanism includes: The fixing seat is rotatably connected to the inside of the connecting plate, a mounting hole is provided in the middle of the fixing seat, a thread is provided inside the mounting hole, and three first slots are provided in a ring-shaped inner circumference of the mounting hole.

[0007] Furthermore, the auxiliary fixing mechanism also includes: A locking screw, the locking screw is threadedly connected to the inside of the mounting hole, and a second clamping groove is formed on the upper end surface of the locking screw; The protective cap is located directly above the locking screw, and a limit strip is fixedly installed on the inner end surface of the protective cap. When the second slot on the surface of the locking screw is aligned with the first slot inside the mounting hole, the limit strip is clamped in the first slot and the second slot.

[0008] Furthermore, two fixed side panels are installed on the bottom plate surface of the fixed frame, the two ends of the fixed side panels are located in the empty grooves on the surface of the fixed frame, the inner end surface of the fixed side panels is provided with three vertical sliding grooves, and the front and rear ends of the lifting plate are respectively installed with three limit blocks, which are slidably clamped in the vertical sliding grooves on the surface of the fixed side panels.

[0009] Furthermore, a first through hole is respectively provided on the left and right end surfaces of the fixed side plate, and two second through holes are provided on the surface of the connecting cross plate. When the first through hole is aligned with the second through hole, the limiting rod passes through the first through hole and the second through hole to fix the lifting plate.

[0010] Furthermore, three compression springs are fixedly mounted on the lower end surface of the lifting plate, and the lower end surfaces of the compression springs are fixedly connected to the bottom plate of the fixing frame.

[0011] Furthermore, a passive gear is fixedly mounted on the outer end surface of the sleeve in the middle of the wire drum, and the passive gear is connected to the active gear via a chain.

[0012] Furthermore, the outer end surface of the wire drum is evenly installed with rubber strips, and the inner end surface of the pressure plate is evenly installed with grooves.

[0013] The present invention provides an offshore platform continuous pile driving system, which has the following beneficial effects: 1. The limit block is slidably mounted in the vertical slide groove, which enables the lifting plate to move up and down along the fixed side plate. When the first through hole is aligned with the second through hole on the connecting horizontal plate, the position of the lifting plate can be fixed by passing the limit rod through the two. When the wire drum needs to be fixed, the limit rods in the first through hole and the second through hole can be taken out. Under the elastic force of the compression spring, the lifting plate will move upward, allowing the pressure plate to contact the outer end surface of the wire drum, thereby stabilizing the wire drum.

[0014] 2. A groove is provided on the inner end surface of the pressure plate, and rubber strips are evenly installed on the outer end surface of the wire drum, so that when the pressure plate is in close contact with the wire drum, the braking effect on the wire drum can be improved.

[0015] 3. The hollow shaft is rotatably connected between the two bearing seats and can flexibly rotate around its axis. The rotary joints at both ends are connected to the hollow shaft on the one hand and connected to the first water pipe on the other hand. The special structure of the rotary joint allows the medium in the first water pipe to be smoothly transported while the hollow shaft rotates, and there will be no leakage or blockage due to the rotation of the shaft, ensuring that the pile punching medium can be stably transmitted to the corresponding working position, providing the necessary conditions for the pile punching operation.

[0016] 4. The surface of the fixing seat is provided with a mounting hole. The bolt passes through the mounting hole and is wedged into the top of the pile fixing chamber, which can play an auxiliary fixing role for the fixing frame. During the continuous pile punching operation, the fixing frame itself will vibrate. At this time, the protective cap is located directly above the locking screw. Glue can be applied between the protective cap and the fixing seat to prevent external seawater and other substances from entering the mounting hole. The limit strip inside the protective cap is clamped between the second slot and the first slot, which can prevent the locking screw from loosening accidentally and play a further locking role. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0018] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0019] In the attached picture: Figure 1 It is a schematic diagram of the overall device structure of the present invention; Figure 2 is a schematic cross-sectional structural diagram of a fixing frame of the present invention; Figure 3 It is a schematic diagram of the connection structure between the fixing frame and the bearing seat of the present invention; Figure 4 It is a schematic diagram of the connection structure between the fixing frame and the pressing plate of the present invention; Figure 5It is a structural schematic diagram of the hollow shaft, the rotary joint and the first water pipe of the present invention; Figure 6 It is a schematic diagram of the connection structure between the fixed side plate and the lifting plate of the present invention; Figure 7 It is a schematic diagram of the exploded structure of the pressing plate, lifting plate and compression spring of the present invention; Figure 8 It is a schematic diagram of the structure of the fixing seat and the locking screw of the present invention; Fig. 9 It is a schematic diagram of the structure of the protective cap and the limiting strip of the present invention; Fig.10 It is a schematic diagram of the framework structure of the operating system of the present invention.

[0020] List of reference numerals: 1. Fixed frame; 101. Empty slot; 102. Bearing seat; 103. Fixed plate; 104. Fixed side plate; 1041. Vertical slide slot; 1042. First through hole; 105. Connecting plate; 2. Hollow shaft; 201. Rotary joint; 2011. First water pipe; 3. Driving motor; 301. Active gear; 4. Lifting plate; 401. Connecting horizontal plate; 4011. Second through hole; 402. Limiting block; 403. Compression spring; 5. Pressing plate; 501. Groove; 6. Fixed seat; 601. Mounting hole; 6011. First slot; 7. Locking screw; 701. Second slot; 8. Protective cap; 801. Limiting strip; 9. Wire drum; 901. Passive gear; 902. Rubber strip. DETAILED DESCRIPTION

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of specific embodiments of the present invention.

[0022] Example 1: Please refer to Figures 1 to 10 As shown: The present invention provides an offshore platform continuous pile driving system, comprising a fixing frame 1; An empty groove 101 is provided in the middle of the left and right side plates of the fixing frame 1. The fixing frame 1 is fixedly mounted on the top of the pile fixing chamber. Two U-shaped connecting plates 105 are respectively mounted on the left and right sides of the bottom plate of the fixing frame 1. An auxiliary fixing mechanism is rotatably connected inside the connecting plates 105. A bearing seat 102 is respectively mounted on the upper ends of the left and right side plates of the fixing frame 1. A fixing plate 103 is also mounted on the upper end surface of the left side plate of the fixing frame 1. A hollow shaft 2, the hollow shaft 2 is rotatably connected between the two bearing seats 102, a rotary joint 201 is installed at each end of the hollow shaft 2, and a first water pipe 2011 is installed at the end of the rotary joint 201; The driving motor 3 is mounted on the outer end surface of the fixing plate 103. The front end of the driving motor 3 is connected to the driving shaft, and the end of the driving shaft is fixedly mounted with a driving gear 301. The lifting plate 4 is a long strip structure. A connecting horizontal plate 401 is installed at the left and right ends of the lifting plate 4. Two pressing plates 5 are fixedly installed on the upper end surface of the lifting plate 4. The upper end surface of the pressing plate 5 is an arc structure. The wire drum 9 has a hollow sleeve in the middle thereof, and the sleeve is sleeved on the outside of the hollow shaft 2 .

[0023] Among them, the auxiliary fixing mechanism includes: a fixing seat 6, which is rotatably connected to the inside of the connecting plate 105, and a mounting hole 601 is opened in the middle position of the fixing seat 6, and a thread is opened inside the mounting hole 601, and the inner circumference of the mounting hole 601 is opened in a ring shape with three first card grooves 6011; a locking screw 7, which is threadedly connected to the inside of the mounting hole 601, and a second card groove 701 is opened on the upper end surface of the locking screw 7; a protective cap 8, which is located directly above the locking screw 7, and a limiting strip 801 is fixedly installed on the inner end surface of the protective cap 8, and when the second card groove 701 on the surface of the locking screw 7 is aligned with the first card groove 6011 inside the mounting hole 601, the limiting strip 801 is clamped in the first card groove 6011 and the second card groove 701.

[0024] By adopting the above scheme, the technical effect brought about is: the protective cap 8 is located directly above the locking screw 7, and glue can be applied between the protective cap 8 and the fixing seat 6 to prevent external seawater and other substances from entering the installation hole 601. The limiting strip 801 inside the protective cap 8 is clamped between the second clamping groove 701 and the first clamping groove 6011, which can prevent the locking screw 7 from loosening accidentally and play a further locking role.

[0025] Among them, two fixed side panels 104 are installed on the bottom plate surface of the fixed frame 1, and the two ends of the fixed side panels 104 are located in the empty grooves 101 on the surface of the fixed frame 1. Three vertical slide grooves 1041 are opened on the inner end surface of the fixed side panels 104, and three limit blocks 402 are respectively installed at the front and rear ends of the lifting plate 4. The limit blocks 402 are slidably mounted in the vertical slide grooves 1041 on the surface of the fixed side panels 104.

[0026] Among them, a first through hole 1042 is respectively opened on the left and right end surfaces of the fixed side plate 104, and two second through holes 4011 are opened on the surface of the connecting cross plate 401. When the first through hole 1042 is aligned with the second through hole 4011, the bolt passes through the first through hole 1042 and the second through hole 4011 to fix the lifting plate 4.

[0027] Among them, three compression springs 403 are fixedly installed on the lower end surface of the lifting plate 4, and the lower end surface of the compression spring 403 is fixedly connected to the bottom plate of the fixed frame 1. During use, after the worker takes out the limiting rods in the first through hole 1042 and the second through hole 4011, the compression spring 403 can provide the lifting plate 4 with power to move upward, so that the pressure plate 5 at the upper end of the lifting plate 4 can be in close contact with the wire drum 9.

[0028] Among them, a passive gear 901 is fixedly installed on the outer end surface of the sleeve in the middle of the wire drum 9, and the passive gear 901 is connected to the active gear 301 by a chain. The outer end surface of the wire drum 9 is evenly installed with a rubber strip 902, and the inner end surface of the pressure plate 5 is evenly installed with a groove 501, so that after the pressure plate 5 is in close contact with the wire drum 9, the cooperation between the rubber strip 902 and the groove 501 can improve the braking effect.

[0029] Embodiment 2: The present invention provides an offshore platform continuous pile driving system, based on the embodiment 1, such as Figure 1-Figure 10 As shown, it also includes: the driving motor 3 can be connected to the control box, and the control box can be installed in a position on the top of the pile fixing room for convenient observation and operation, which is convenient for personnel to operate. A manual and automatic switching switch is provided on the control box. In the manual state, press the lifting button, the hose in the winch will be released, press the stop button to stop the operation, press the lowering button, the hose in the winch will be retracted, and press the stop button to stop the operation; in the automatic state, the lifting or lowering signal of the pile driving platform will be transmitted to the winch control system, which automatically follows the lifting and lowering of the pile driving platform and makes corresponding actions, and before operating, first press the power switch button, then the control system of the winch can be powered on, and when the power is on, if the power switch button is pressed again, the power can be disconnected.

[0030] Embodiment 3: The present invention provides an offshore platform continuous pile driving system, based on the embodiment 1, such as Figure 1-Figure 10 As shown, the offshore platform continuous pile driving system is mainly composed of a fixed frame 1, a hollow shaft 2, a driving motor 3, a lifting plate 4, a wire drum 9 and an auxiliary fixing mechanism. The fixed frame 1 serves as a basic supporting structure. A bearing seat 102 is installed on the upper end of the fixed frame 1 to realize the rotation connection of the hollow shaft 2. The fixed frame 1 is also provided with related structures for auxiliary fixation and coordination with other components, such as a connecting plate 105, a fixed side plate 104, etc. The rotary joints 201 at both ends of the hollow shaft 2 are connected to the first water pipe 2011 for related functions such as medium transportation. The driving motor 3 provides power for the rotation of the wire drum 9 through the active gear 301 and the passive gear 901 of the wire drum 9 with the help of a chain transmission, and the lifting plate 4 realizes up and down sliding through its limit block 402 and the vertical slide groove 1041 of the fixed side plate 104. When the pressure plate 5 at the upper end of the lifting plate 4 contacts the wire drum 9, it can play a role in fixing and limiting the wire drum 9.

[0031] Specific usage and function of this embodiment: In the present invention, the fixing frame 1 is fixedly installed on the top of the pile fixing chamber to provide a stable installation foundation for the entire pile driving system, ensuring that all components of the system can operate reliably in the special environment of the offshore platform. The fixed side plate 104 cooperates with the lifting plate 4, and the limit block 402 is slidably mounted in the vertical slide groove 1041, which enables the lifting plate 4 to move up and down along the fixed side plate 104. When the first through hole 1042 is aligned with the second through hole 4011 on the connecting cross plate 401, the position of the lifting plate 4 can be fixed by passing the limit rod through the two. When the wire drum 9 needs to be fixed, the limit rods in the first through hole 1042 and the second through hole 4011 can be taken out Under the elastic force of the compression spring 403, the lifting plate 4 will move upward, allowing the pressure plate 5 to contact the outer end surface of the wire drum 9, thereby stabilizing the wire drum 9, and the inner end surface of the pressure plate 5 is provided with a groove 501, and the outer end surface of the wire drum 9 is evenly installed with rubber strips 902, which can improve the braking effect of the wire drum 9. The hollow shaft 2 is rotatably connected between the two bearing seats 102 and can flexibly rotate around its axis. The rotary joints 201 at both ends are connected to the hollow shaft 2 on the one hand, and are connected to the first water pipe 2011 on the other hand. The special structure of the rotary joint 201 allows it to ensure that the medium in the first water pipe 2011 can be smoothly transported while the hollow shaft 2 rotates, and there will be no leakage or blockage due to the rotation of the shaft. The driving motor 3 is installed on the outer end face of the fixed plate 103. After starting, the driving shaft connected to the front end of the motor will drive the active gear 301 to rotate. The active gear 301 is connected to the passive gear 901 through a chain. According to the gear transmission principle, the driving motor 3 can drive the wire drum 9 to rotate around the hollow shaft 2 during rotation, so as to realize the related functions of the wire drum 9 such as wire reeling and releasing, and provide power support for the retracting and releasing operations of the hose and other components in the pile punching operation. The sleeve in the middle of the wire drum 9 is sleeved on the outside of the hollow shaft 2, and rotates around the hollow shaft 2 under the drive of the driving motor 3. Before or after the pile punching operation, The wire drum 9 can wind or release the hose in an orderly manner, which is convenient for the storage and management of the hose and provides a suitable hose length and position for pile punching. A mounting hole 601 is opened on the surface of the fixing seat 6. The bolt passes through the mounting hole 601 and is wedged into the top of the pile fixing chamber, which can play an auxiliary fixing role for the fixing frame 1. During the continuous pile punching operation, the fixing frame 1 itself will vibrate. At this time, the protective cap 8 is located directly above the locking screw 7. Glue can be applied between the protective cap 8 and the fixing seat 6 to prevent external seawater and other substances from entering the mounting hole 601. The limiting strip 801 inside the protective cap 8 is clamped between the second clamping groove 701 and the first clamping groove 6011, which can prevent the locking screw 7 from loosening accidentally and play a further locking role.

Claims

1. Offshore platform continuous pile driving system, characterized by: include: A fixing frame (1), wherein a hollow groove (101) is provided in the middle of the surfaces of the left and right side plates of the fixing frame (1), two U-shaped connecting plates (105) are respectively installed on the left and right sides of the bottom plate of the fixing frame (1), and the connecting plates (105) are rotatably connected to an auxiliary fixing mechanism inside, and a bearing seat (102) is respectively installed on the upper ends of the left and right side plates of the fixing frame (1), and a fixing plate (103) is also installed on the upper end surface of the left side plate of the fixing frame (1); a hollow shaft (2), wherein the hollow shaft (2) is rotatably connected between the two bearing seats (102), and a rotating joint (201) is respectively installed at both ends of the hollow shaft (2), and the lower end of the rotating joint (201) is connected to the lower end of the rotating joint (201). A first water pipe (2011) is installed at the end of the fixed plate (103); a driving motor (3), the driving motor (3) is installed on the outer end surface of the fixed plate (103), the front end of the driving motor (3) is drivingly connected to a driving shaft, and the end of the driving shaft is fixedly installed with a driving gear (301); a lifting plate (4), the lifting plate (4) having a main body in a long strip structure, a connecting horizontal plate (401) is installed at the left and right ends of the lifting plate (4), two pressing plates (5) are fixedly installed on the upper end surface of the lifting plate (4), and the upper end surface of the pressing plate (5) is an arc-shaped structure; a wire drum (9), the middle position of the wire drum (9) is a sleeve with a hollow structure, and the sleeve is sleeved on the outside of the hollow shaft (2).

2. The offshore platform continuous pile driving system according to claim 1, characterized in that: The auxiliary fixing mechanism comprises: A fixing seat (6) is rotatably connected to the inside of the connecting plate (105), a mounting hole (601) is provided in the middle of the fixing seat (6), a thread is provided inside the mounting hole (601), and three first slots (6011) are provided in an annular shape on the inner circumference of the mounting hole (601).

3. The offshore platform continuous pile driving system as claimed in claim 2, characterized in that: The auxiliary fixing mechanism also includes: A locking screw (7), the locking screw (7) being threadedly connected to the interior of the mounting hole (601), and a second locking groove (701) being formed on an upper end surface of the locking screw (7); A protective cap (8) is located directly above the locking screw (7), and a limit strip (801) is fixedly mounted on the inner end surface of the protective cap (8). When a second slot (701) on the surface of the locking screw (7) is aligned with a first slot (6011) inside the mounting hole (601), the limit strip (801) is engaged between the first slot (6011) and the second slot (701).

4. The offshore platform continuous pile driving system according to claim 1, characterized in that: Two fixed side plates (104) are installed on the bottom plate surface of the fixed frame (1), and the two ends of the fixed side plates (104) are located in the empty grooves (101) on the surface of the fixed frame (1). The inner end surface of the fixed side plates (104) is provided with three vertical slide grooves (1041). The front and rear ends of the lifting plate (4) are respectively provided with three limit blocks (402), and the limit blocks (402) are slidably mounted in the vertical slide grooves (1041) on the surface of the fixed side plates (104).

5. The offshore platform continuous pile driving system as claimed in claim 4, characterized in that: The fixed side plate (104) is provided with a first through hole (1042) on its left and right end surfaces respectively, and the surface of the connecting cross plate (401) is provided with two second through holes (4011). When the first through hole (1042) and the second through hole (4011) are aligned, the limiting rod passes through the first through hole (1042) and the second through hole (4011) to fix the lifting plate (4).

6. The offshore platform continuous pile driving system according to claim 1, characterized in that: Three compression springs (403) are fixedly mounted on the lower end surface of the lifting plate (4), and the lower end surfaces of the compression springs (403) are fixedly connected to the bottom plate of the fixing frame (1).

7. The offshore platform continuous pile driving system according to claim 1, characterized in that: A passive gear (901) is fixedly mounted on the outer end surface of the sleeve in the middle of the wire drum (9), and the passive gear (901) is connected to the active gear (301) via a chain.

8. The offshore platform continuous pile driving system according to claim 1, characterized in that: The outer end surface of the wire drum (9) is evenly mounted with rubber strips (902), and the inner end surface of the pressure plate (5) is evenly mounted with grooves (501).

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