Intertidal zone piling vessel and method of moving a piling vessel

Abstract

The application discloses an intertidal zone piling ship, which comprises a ship body, connecting beams are arranged on the two sides of the ship body, a pressure cabin is connected to the connecting beams through telescopic rods, and the connecting beams can rotate in the horizontal direction under the drive of a driving device. The intertidal zone piling ship can move in the intertidal zone full of silt during ebb tide, and the problem that the prior art piling ship cannot move in the intertidal zone after ebb tide is solved.

Description

Technical Field

[0001] This invention relates to an intertidal piling vessel, and also to a method for moving the aforementioned piling vessel. Background Technology

[0002] The intertidal zone, defined as the area submerged by seawater at high tide and exposed above water at low tide, typically refers to the coastal area between the average highest and lowest tide levels. The intertidal zone is usually covered with a thick layer of silt; in some coastal areas, the silt thickness can reach 20 to 50 meters. The silt has limited carrying capacity, making it difficult for ordinary construction machinery to access the site, and temporary construction access roads are easily damaged by the tides. In the eastern coastal areas of Jiangsu and Zhejiang, for example, there are two tides per day, with a tidal range of several meters. In Hangzhou Bay, the tidal range can exceed 8 meters. Currently, piling vessels are commonly used for piling operations in the intertidal zone. However, when the tide recedes, the piling vessels find it difficult to move in the intertidal zone and cannot continue piling operations, meaning that continuous construction between high and low tides affects piling efficiency. Chinese patent CN215165551U discloses a fully hydraulic intelligent amphibious self-propelled multi-functional pile driver. It achieves positioning and movement by cleverly utilizing hydraulic telescopic outriggers and can operate in water depths up to 15 meters. However, the outriggers usually require a relatively solid seabed structure for support, and the thick silt layer that is widely present in the intertidal zone usually cannot provide sufficient support to allow it to move in the intertidal zone. Summary of the Invention

[0003] To address the above shortcomings, the present invention aims to provide a piling vessel that can move in the intertidal zone during high and low tides, enabling continuous piling operations during high and low tides. The present invention also aims to provide a method for moving the piling vessel.

[0004] Therefore, the present invention provides an intertidal piling vessel, comprising a hull, with crossbeams connected to both sides of the hull, and the lower part of the crossbeams connected to a pressure chamber via telescopic rods, the crossbeams being able to rotate horizontally under the drive of a driving device.

[0005] Furthermore, the crossbeam is fixed on the rotating base, the device is movably connected to the base, and a gear fixedly connected to the base is installed on the base. The driving device drives the gear to rotate the base and the crossbeam.

[0006] The sidewall of the crossbeam is connected to a hydraulic device, so that the crossbeam rotates under the drive of the hydraulic device.

[0007] Furthermore, one end of the crossbeam is provided with a turntable and is movably connected to the hull via a shaft, and a ball bearing base is provided below the turntable.

[0008] Furthermore, the pressure chamber includes a water inlet, and the hull is equipped with a water storage tank, which is connected to the pressure chamber, allowing seawater to be transferred between the water storage tank and the pressure chamber.

[0009] Furthermore, it also includes a control system for controlling the piling vessel's drive system, steering system, and pressure chamber.

[0010] Furthermore, a propulsion system is installed on the hull, which is used to propel the hull to move in the water.

[0011] This invention also discloses a method for moving a piling vessel, which, using the aforementioned piling vessel, includes the following steps:

[0012] S1: Drain the water in the pressure chamber to the water storage tank;

[0013] S2: After the water level in the pressure chamber drops to a predetermined value, the control beam rotates, causing the pressure chamber to move forward;

[0014] S3: Inject water from the storage tank into the pressure chamber. After the water injection is completed, control the extension rod to extend, thereby reducing the pressure between the bottom of the hull and the silt.

[0015] S4: Control the beam to rotate, causing the hull to move forward;

[0016] S5: Repeat steps S1 to S4 to move the hull to the predetermined position.

[0017] Furthermore, step S2 also includes shortening the compression rod before controlling the crossbeam to disengage the pre-sludge from the pressure chamber.

[0018] Furthermore, each side of the hull includes at least two crossbeams, and the hull is turned by controlling the crossbeams on the same side to form an angle different from that of the hull.

[0019] The beneficial technical effects of this invention are as follows:

[0020] (1) When the water depth is greater than the draft of the piling vessel, the piling vessel of the present invention can carry out piling operations by anchoring, just like a regular piling vessel. The piling vessel of the present invention includes pressure chambers on both sides, with telescopic rods connected to the pressure chambers. The telescopic rods can rise and, depending on the actual situation, the pressure chambers can discharge water to provide additional buoyancy (when moving) or provide additional weight to improve the stability of the hull during piling. When the water depth is less than the draft of the piling vessel or on dry mudflats, seawater is injected into the pressure chambers and the telescopic rods are extended, causing the pressure chambers to descend and the hull to sit on the bottom. The pressure chambers and the hull are supported together on the silt for piling, thus solving the problem of piling stability when the water depth is shallow. When moving in water shallower than the draft or on mudflats, the following method can be used: First, water from the pressure chambers is discharged into the hull, significantly reducing the weight of the pressure chambers while increasing the weight of the hull. The telescopic boom is then shortened, further reducing the weight of the pressure chambers, causing them to rise. This reduces friction between the pressure chambers and the mud, or removes them from contact. The crossbeam is then moved forward. Once in the appropriate position, the telescopic boom extends, bringing the pressure chambers back into contact with the mud. Water from the hull is then injected into the pressure chambers on both sides, increasing their weight while decreasing the weight of the hull. The telescopic boom is then extended, using the pressure chambers on both sides as support, causing the hull to rise. This reduces friction between the hull and the mud, or removes them from contact. The movement of the crossbeam then propels the hull forward. In a specific embodiment of the invention, a screw-shaped propeller is also provided. When navigation conditions are good, the propeller can be used alone or in combination with the above method.

[0021] (2) In a specific embodiment of the present invention, a steering system is also included. The steering system controls the pressure chamber to drive the hull to turn. For example, two crossbeams are provided on both sides of the hull. The crossbeams are rotated by a hydraulic device. The hydraulic device at the front of the hull is used to make the crossbeam at the front of the hull rotate at a different angle than the crossbeam at the rear, thereby driving the pressure chamber to rotate. After the pressure chamber is filled with water, the opposite rotation is used to turn the hull. Attached Figure Description

[0022] Figure 1 A left view of a specific embodiment 1 of the present invention;

[0023] Figure 2 Front view of Example 1

[0024] Figure 3 This is the left view of Example 2;

[0025] Figure 4 This is a top view of Example 2;

[0026] Figure 5 The structure consists of a crossbeam and a pivot.

[0027] Figure 6This refers to the turntable structure of the crossbeam in Example 2;

[0028] Figure 7 This is a schematic diagram of the telescopic rod's pivot and steering gear.

[0029] Figure 8 This is a schematic diagram of a spiral roller.

[0030] Explanation of reference numerals in the attached drawings: 1. Hull; 2. Crossbeam; 3. Telescopic rod; 4. Pressure chamber; 5. Rotary seat; 6. Base; 7. Transmission gear; 8. Rotary shaft; 9. Steering gear; 10. Hydraulic device; 11. Turntable; 12. Cover; 13. Water inlet; 14. Control system; 15. Piling device; 16. First threaded roller; 17. Second threaded roller. Detailed Implementation

[0031] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0032] Reference Figure 1 , Figure 2 and Figure 5As shown, an intertidal piling vessel of the present invention includes a hull 1 and a piling device 15. Crossbeams 2 are connected to both sides of the hull 1, and the lower part of the crossbeams 2 is connected to a pressure chamber 4 via a telescopic rod 3. The crossbeams 2 can rotate horizontally under the drive of a driving device. In embodiment 1 of the present invention, two crossbeams 2 are mirror-symmetrically arranged on both sides of the piling vessel. The two crossbeams 2 on the same side are arranged front and rear on the hull 1. One end of the crossbeam 2 is fixed to a rotating seat 5, which is movably connected to a base 6, meaning the rotating seat 5 can rotate relative to the base 6. A transmission gear 7 is installed on the base 6 and fixedly connected to the shaft of the rotating seat 5. The driving device drives the transmission gear 7 through a gear reduction mechanism, causing the rotating seat 5 and the crossbeams 2 to rotate slowly. The driving device can be a motor. The other end of the crossbeam 2 is movably connected to a rotating shaft 8, meaning the rotating shaft 8 can rotate relative to the crossbeam 2. The rotating shaft 8 is connected to the telescopic rod 3. The telescopic rod 3 can be driven by a motor or a hydraulic cylinder. The pressure chamber 4 is fixed on the telescopic rod 3. Water can be injected into the pressure chamber 4, and the water volume of a single pressure chamber 4 can reach more than 30 tons. Under normal conditions, the rotating shafts 8 on the front and rear crossbeams 2 are equidistant from the center line of the hull 1, and the pressure chamber 4 is parallel to the hull 1. When it is necessary to move in the silt, the control pivot 5 is rotated to drive the pressure chamber 4, after drainage, to move forward. After the pressure chamber 4 moves forward to the appropriate position, it is still parallel to the hull 1. Water is injected into the pressure chamber 4, and the pivot 5 is rotated in the opposite direction. At this time, the weight of the hull 1 is smaller, and the hull 1 moves forward, thereby realizing the movement of the piling vessel in the intertidal zone. In this process, the friction between the silt and the structure determines whether the pressure chamber 4 or the hull 1 moves. Therefore, the weight of the pressure chamber 4 and the hull 1 can be changed to determine which one moves. Furthermore, the extension and retraction of the telescopic rod 3 causes changes in the contact pressure between the hull 1 or the pressure chamber 4 and the silt, further avoiding unintended relative movement. In this embodiment 1, referring to Figure 7 As shown, the rotating shaft 8 is fixed to the steering gear 9. The steering gear 9 can be rotated by the motor to cooperate with the crossbeam 2. The motor is fixed on the crossbeam 2. When the crossbeam 2 rotates, the motor can drive the steering gear 9 and the rotating shaft 8 to rotate in opposite directions through the gear reduction mechanism, so that the pressure chamber 4 remains parallel to the hull 1.

[0033] Reference Figure 2 , Figure 4 and Figure 6 As shown, Embodiment 2 of the present invention is basically the same as Embodiment 1, except that in Embodiment 2, a hydraulic device 10 is used to drive the crossbeam 2 to rotate. The hydraulic device 10 is installed obliquely between one side of the hull 1 and the crossbeam 2, and the crossbeam 2 is driven to rotate by a hydraulic cylinder. Preferably, one end of the crossbeam 2 is provided with a turntable 11 and is movably connected to the hull 1 by a shaft. A base 6 is provided below the turntable 11, a shaft is provided at the center of the base 6, and ball bearings are provided on the upper surface of the base 6. The central hole of the turntable 11 passes through the shaft, and a cover 12 is located above the turntable 11.

[0034] Reference Figure 1 and Figure 3 As shown in Embodiments 1 and 2 above, the pressure chamber 4 includes a water inlet 13, which is connected to seawater via an inlet pipe. The water inlet 13 is equipped with a valve, which is opened and closed remotely. Seawater can be directly injected into the pressure chamber 4 through this inlet 13. The pressure chamber 4 is connected to the water storage tank of the hull 1 via a pipe, which can be equipped with a pump. The pump is used to pump seawater into the pressure chamber 4 or to transfer seawater between the pressure chamber 4 and the water storage tank. The pumping method described above can also be achieved by changing the air pressure between the pressure chamber 4 and the water storage tank. For example, when water needs to be transferred between the pressure chamber 4 and the water storage tank, air is injected into the corresponding space to increase the air pressure and push the water flow to other spaces.

[0035] In the above embodiments 1 and 2, the steering is achieved by controlling the angle between the pressure chamber 4 and the hull 1, and then making the hull 1 rotate to be parallel with the pressure chamber 4. In embodiment 1, the motor drives the rotating seat 5 to rotate, and the rotating shaft 8 connected to the telescopic rod 3 rotates in the opposite direction, causing the pressure chamber 4 to move forward. When the front and rear crossbeams 2 move at the same time, the pressure chamber 4 remains parallel with the hull 1, and the piling vessel moves forward straight. However, when the front and rear crossbeams 2 on the same side move at different times, such as when the front crossbeam 2 rotates at a larger angle, the pressure chamber 4 is no longer parallel with the hull 1. The crossbeams 2 on both sides of the hull 1 move independently to keep the pressure chambers 4 on both sides parallel. The pressure chamber 4 is filled with water, and the hull 1 is lifted by the telescopic rod 3 to reduce the pressure of the hull 1 against the silt. Then, the motor drives the rotating seat 5 in the opposite direction. At this time, the pressure chamber 4 and the crossbeams 2 do not rotate, but the hull 1 rotates to be parallel with the pressure chamber 4, thus completing the steering. The steering principle of Example 2 is basically the same as that of Example 1. The difference is that in Example 2, the hydraulic device 10 drives the crossbeam 2 to turn the pressure chamber 4. After the pressure chamber 4 turns, water is injected into the pressure chamber 4 as support, while the hull 1 rises up through the telescopic rod 3. Then, the hydraulic device 10 drives the hull 1 to turn in the same direction as the pressure chamber 4 to complete the steering.

[0036] The piling vessel also includes a control system 14, which coordinates and controls the movement system of the piling vessel. It issues corresponding commands using a joystick, and the control system controls and coordinates the steering system, pressure chamber buoyancy system, and drive device to complete the corresponding actions according to the commands.

[0037] In embodiments 1 and 2 above, a propulsion system is installed on the hull 1, which is used to propel the hull 1 to move in the water.

[0038] In embodiments 1 and 2 described above, a first helical roller 16 and a second threaded roller 17, similar to a screw, may also be included. Figure 8As shown, a first helical roller 16 can be formed by threaded blades on the outside of the pressure chamber 4. The first helical roller is connected to a support frame via a shaft, and the support frame is connected to a telescopic rod 3. The first helical roller can rotate under the drive of a drive device such as a motor to obtain axial power, which is used to assist the pressure chamber in moving forward or rotating, thereby overcoming the problem of difficulty in moving the pressure chamber 4 forward in some cases. The first threaded roller 16 can also be set independently, for example, on the pressure chamber 4. In addition, refer to Figure 1 , Figure 2 As shown, the second threaded roller 17 can also be located below the hull 1 or be raised and lowered in a groove below the hull 1 to assist the hull 1 in moving forward when the friction between the hull 1 and the silt is greater than that between the pressure chamber 4 and the silt. In this embodiment, when traffic conditions are good, the rotation of the spiral roller can also be used alone to achieve forward and lateral movement of the hull 1. Lateral movement can be achieved when the second threaded roller 17 rotates horizontally to the side and the threaded roller rotates. Reverse movement can be achieved by the engine driving the threaded roller to rotate in the opposite direction.

[0039] This invention also discloses a method for moving a piling vessel, which, using the aforementioned piling vessel, includes the following steps:

[0040] S1: Drain the water in pressure chamber 4 into the water storage tank;

[0041] S2: After the water level in pressure chamber 4 drops to a predetermined value, control the crossbeam 2 to rotate, causing pressure chamber 4 to move forward;

[0042] S3: Inject water from the water storage tank into the pressure chamber 4. After the water injection is completed, control the telescopic rod 3 to extend, thereby reducing the pressure between the bottom of the hull 1 and the silt.

[0043] S4: Control the rotation of beam 2 to move hull 1 forward;

[0044] S5: Repeat steps S1 to S4 to move hull 1 to the predetermined position.

[0045] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. An intertidal piling vessel, comprising a hull, characterized in that: The two sides of the hull are connected to crossbeams, and the lower part of the crossbeams is connected to the pressure chamber via telescopic rods. The crossbeams rotate horizontally under the drive of the drive device. Two crossbeams are mirror-symmetrically arranged on both sides of the piling vessel. The two crossbeams on the same side are arranged one after the other on the hull. One end of the crossbeam is fixed to a rotating base, which is movably connected to a base. The rotating base rotates relative to the base. A transmission gear is installed on the base and is fixedly connected to the shaft of the rotating base. The drive device drives the transmission gear through a gear reduction mechanism to drive the rotating base and the crossbeam to rotate slowly. The drive device is a motor. The other end of the crossbeam is movably connected to a rotating shaft, which rotates relative to the crossbeam. The rotating shaft is connected to a telescopic rod, which is driven by a motor or a hydraulic cylinder. The pressure chamber is fixed to the telescopic rod. The rotating shaft is fixed to the steering gear, which is driven by the motor to rotate and cooperate with the crossbeam. The motor is fixed on the crossbeam. When the crossbeam rotates, the motor drives the steering gear and the rotating shaft to rotate in opposite directions through the gear reduction mechanism, so that the pressure chamber remains parallel to the hull. The pressure chamber includes a water inlet, and the hull is equipped with a water storage tank, which is connected to the pressure chamber, allowing seawater to transfer between the water storage tank and the pressure chamber.

2. An intertidal piling vessel, comprising a hull, characterized in that: The two sides of the hull are connected to crossbeams, and the lower part of the crossbeams is connected to the pressure chamber via telescopic rods. The crossbeams rotate horizontally under the drive of the drive device. Two crossbeams are mirror-symmetrically arranged on both sides of the piling vessel. The two crossbeams on the same side are set one after the other on the hull. A hydraulic device is installed diagonally between one side of the hull and the crossbeams. The crossbeams are driven to rotate by a hydraulic cylinder. One end of the crossbeam is equipped with a turntable and is movably connected to the hull by a shaft. A base is provided below the turntable, and a shaft is located at the center of the base. Ball bearings are provided on the upper surface of the base. The shaft passes through the central hole of the turntable, and a cover is located above the turntable. The other end of the crossbeam is movably connected to the rotating shaft, which rotates relative to the crossbeam. The rotating shaft is connected to a telescopic rod, which is driven by a motor or a hydraulic cylinder. The pressure chamber is fixed to the telescopic rod. The rotating shaft is fixed to the steering gear, which is driven by the motor to rotate and cooperate with the crossbeam. The motor is fixed on the crossbeam. When the crossbeam rotates, the motor drives the steering gear and the rotating shaft to rotate in opposite directions through the gear reduction mechanism, so that the pressure chamber remains parallel to the hull. The pressure chamber includes a water inlet, and the hull is equipped with a water storage tank, which is connected to the pressure chamber, allowing seawater to transfer between the water storage tank and the pressure chamber.

3. The intertidal piling vessel according to claim 1 or 2, characterized in that: It also includes a control system for controlling the piling vessel's drive system, steering system, and pressure chamber.

4. A tidal piling vessel according to claim 1 or 2, characterized in that: The hull is equipped with a propulsion system for moving the hull in the water.

5. An intertidal piling vessel according to claim 1 or 2, characterized in that: It also includes a first threaded roller formed by spiral blades on the surface of the pressure chamber and connected to a support frame via a shaft. The support frame is connected to a telescopic rod. A second threaded roller that can be raised, lowered and rotated horizontally is independently provided in a groove under the hull. The first and second threaded rollers are driven by a drive device to provide power along the axial direction of the threaded roller.

6. A method for moving a piling vessel, using the piling vessel as described in claim 1 or 2, characterized in that: Includes the following steps: S1: Drain the water in the pressure chamber to the water storage tank; S2: After the water level in the pressure chamber drops to the predetermined value, the control compression rod shortens, causing the pre-sludge in the pressure chamber to disengage, and the control beam rotates, causing the pressure chamber to move forward. S3: Inject water from the storage tank into the pressure chamber. After the water injection is completed, control the extension rod to extend, thereby reducing the pressure between the bottom of the hull and the silt. S4: Control the beam to rotate, causing the hull to move forward; S5: Repeat steps S1 to S4 to move the hull to the predetermined position.

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