Vibration oil cylinder for maritime work construction and maritime work equipment and piling method thereof

Abstract

The invention relates to the technical field of ocean engineering equipment, and discloses a vibration oil cylinder for maritime work construction, equipment of the vibration oil cylinder and a vibration method. Oil is supplied to the pilot port of the balance valve through the third oil port and the sensing pipeline, so that the balance valve is opened; the piston rod retracts to open the jaw clamp; when the jaw clamp is moved to a target workpiece, the hydraulic system is started, hydraulic oil is provided for the rod cavity through the second oil port so that the piston rod can stretch out, oil is supplied to the pilot port of the balance valve through the third oil port and the sensing pipeline so that the balance valve can be opened, and the piston rod retracts so that the jaw clamp can be clamped and closed. Therefore, the jaw clamping jaws are closed to clamp a target workpiece, and firm clamping is ensured; and meanwhile, the balance valve is adjusted to be opened and closed through the third oil port, the vibration oil cylinder can meet the requirements of different vibration frequencies and working conditions, and the applicability and reliability of equipment are enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of marine engineering equipment, and in particular to a vibrating oil cylinder used for marine construction, marine engineering equipment thereof and a piling method. Background Art

[0002] In marine engineering, pile foundation operation is a key process in the construction of important infrastructure such as offshore platforms, submarine tunnels, port terminals, etc. As the core equipment in this field, steel cylinder installation is widely used in various projects such as cylinder driving, sinking and installation of structures. In order to effectively complete these sinking operations, hydraulic vibratory hammers are usually used as sinking tools. Relying on its powerful vibration force, it can quickly drive steel cylinders into the ground or the seabed, providing technical support for the smooth implementation of marine engineering.

[0003] At present, the domestic large-diameter steel cylinder underwater vibration sinking construction technology mainly adopts the process of multiple hydraulic vibration hammers linked vibration sinking. This technology has been applied in some marine engineering projects, especially in the underwater production system in the restricted area of ​​offshore oil fields, which needs to realize pile foundation construction through underwater vibration sinking of steel cylinders. This technology has broad application prospects in the marine engineering market.

[0004] Vibratory hammers are not only used in marine engineering, but also widely involved in many fields and engineering scenarios, such as infrastructure construction (such as docks, bridges, highways, etc.), dredging projects (such as harbors, canals, underwater tunnels, etc.), demolition projects (such as demolition of old buildings, docks and bridges, etc.), and petrochemical industry (such as installation of submarine pipelines). Especially in marine engineering, hydraulic vibratory hammers promote the construction, maintenance and renovation of marine infrastructure such as deep-sea pile foundations and ports by effectively coping with complex submarine environments.

[0005] However, the existing hydraulic pile hammer technology still faces certain technical limitations in the marine environment. The coordinated operation of the hydraulic system and the vibratory hammer is easily affected by the offshore operating environment. Especially when there is a lot of interference from uncertain factors such as sea breeze and waves, the vibratory hammer may experience problems such as shaking or tubing entanglement. These problems will not only lead to the failure of the hydraulic system, but may also affect the operating accuracy and safety of the vibratory hammer, thereby increasing the difficulty and risk of the operation.

[0006] A vibrating hammer with national application number 201510207948.9, the vibrating device includes a vibrating shell, a first rotating shaft and a rotating shaft driving assembly, a first bearing and a first bearing seat are respectively arranged between the first rotating shaft and the vibrating shell, a lubricating oil placement cavity is arranged in the vibrating shell, a circulating lubrication assembly is arranged on the shell, the circulating lubrication assembly includes an oil pump, an oil pump channel, a diverter assembly, and a first lubrication channel, the diverter assembly includes a diverter plate installed above the shell and a diverter channel arranged in the diverter plate, the diverter channel is provided with at least one oil inlet and a plurality of first oil outlets, the oil pump channel is arranged between the lubricating oil placement cavity and the oil inlet, each first oil outlet corresponds to the vertical position relative to each first bearing seat, and the first lubrication channel is vertically arranged between the first oil outlet and the inner cavity of the first bearing seat.

[0007] However, in the marine environment, although this technology can complete the installation by using the vibration piling method, the vibration cylinder used for the vibratory hammer often needs to withstand more complex external interference when performing underwater high-pressure work, such as waves, sea breezes and mechanical vibrations. These factors may cause fluctuations in the internal pressure of the hydraulic system; a special protection mechanism is needed to avoid instantaneous overpressure caused by external forces. The pressure relief port can quickly release the pressure when the pressure is too high to prevent damage to the cylinder or related components and ensure the safety of the operation.

[0008] Therefore, how to ensure the stability and efficiency of the hydraulic vibratory hammer in the complex marine environment, especially in the case of large waves or other unfavorable conditions, to ensure the effective operation of the vibration cylinder, has become a technical problem that needs to be solved urgently. Summary of the invention

[0009] In order to solve the above-mentioned problems in the prior art, the present invention provides a vibrating cylinder for marine construction;

[0010] Another object of the present invention is to provide a marine engineering equipment equipped with a vibration cylinder;

[0011] Another object of the present invention is to provide a piling method for marine engineering equipment equipped with a vibrating cylinder.

[0012] In order to solve the above technical problems, the technical solution of the present invention is as follows:

[0013] A vibrating oil cylinder for marine construction, comprising a piston rod arranged in an inner cavity of the cylinder body, wherein the piston rod divides the inner cavity of the cylinder body into a first chamber and a second chamber, wherein the first chamber is located on a side where the piston rod is located, and the second chamber is located on a side opposite to the piston rod, and the two chambers are respectively filled with hydraulic oil to drive the piston rod to reciprocate in the cylinder body;

[0014] The rod chamber and the rodless chamber are connected to the first oil port and the second oil port respectively; the rodless chamber is connected to the second oil port via a rodless chamber pipeline, a balancing valve is provided in the rodless chamber pipeline, and a third oil port is also provided on the cylinder body, and the third oil port is connected to the pilot port of the balancing valve via a sensing pipeline, so as to control the opening and closing of the balancing valve.

[0015] Furthermore, the cylinder port is provided with a slot, a first oil port is provided in the slot, the first oil port is also connected to the rod cavity through a rod pipe, and the rod pipe is also connected to the sensing pipe of the balancing valve for controlling the opening and closing of the balancing valve.

[0016] Furthermore, the rod pipeline is also provided with a plurality of pressure relief oil ports for quickly releasing excessive hydraulic oil pressure in the pipeline.

[0017] Furthermore, the rodless cavity is also connected to an exhaust hole through an exhaust pipeline for exhausting the gas in the rodless cavity.

[0018] A marine engineering equipment equipped with a vibrating oil cylinder for marine engineering construction, the marine engineering equipment comprising a vibrating hammer, the vibrating hammer comprising a hoisting device, a vibrating device and a jaw clamp; the hoisting device is connected to the vibrating device through a buffer device, the bottom of the vibrating device is connected to the jaw clamp, and the jaw clamp is driven by the vibrating oil cylinder to implement clamping;

[0019] The jaw clamp is composed of one or more pairs of jaw clamps, and the jaws are connected to the piston rod of the vibration cylinder to convert the reciprocating motion of the piston rod into the opening and closing action of the jaws to clamp or release the target workpiece.

[0020] Preferably, the eccentric shaft assembly is composed of a group of eccentric blocks and bearings, which generate vibration force by rotation.

[0021] Furthermore, the hanging device includes a detachable hanging bracket and a hanging ear; the hanging bracket is connected to the vibration device through a buffer device, and the top of the hanging bracket.

[0022] Furthermore, the vibration device includes a frame, an eccentric motor and an eccentric shaft assembly; the frame is connected to the bottom of the suspension bracket through a buffer device, the eccentric motor is arranged in the frame, and drives the eccentric shaft assembly in the frame through a chain belt.

[0023] Furthermore, the buffer device includes a connecting frame and a buffer spring. The vibration device can be slidably connected to the bottom of the lifting device in a vertical direction through the connecting frame. The buffer spring is arranged in the connecting frame and abuts against the lifting device and the vibration device to absorb the vibration impact generated during the operation of the vibration hammer.

[0024] A piling method for offshore equipment equipped with a vibration oil cylinder, the piling method for offshore equipment equipped with a vibration oil cylinder comprising the following steps:

[0025] S1: Hang the vibrating hammer device on the lifting equipment through the hoisting device, and then check the connection status of the buffer device to ensure that the buffer device can be slidably connected to the hoisting device, and confirm that the buffer spring is in a normal elastic state;

[0026] S2: Then start the hydraulic system, send the hydraulic oil to the vibrating cylinder, and supply hydraulic oil to the rod chamber through the first oil port to retract the piston rod, and supply oil to the pilot port of the balance valve through the third oil port and the sensing pipeline to open the balance valve; the piston rod retracts to open the jaw clamp, thereby adjusting the initial position of the jaw clamp to ensure that the target workpiece to be clamped is within the clamping range;

[0027] S3: Move the jaw clamp to the target workpiece, then start the hydraulic system, and supply hydraulic oil to the rod chamber through the second oil port to extend the piston rod, and supply oil to the pilot port of the balance valve through the third oil port and the sensing pipeline to open the balance valve, and retract the piston rod to clamp the jaw clamp tightly, so that the jaws close to clamp the target workpiece to ensure a firm clamping;

[0028] S4: Then the vibration device is started, and the vibration device generates a periodic eccentric vibration force, which is transmitted to the jaw clamp and the clamped target workpiece, and then the target workpiece can sink into the soil under the action of the vibration force and its own gravity;

[0029] S5: When the target workpiece reaches the appropriate position, the vibration of the vibration device is stopped, and then oil is supplied to the pilot port of the balancing valve through the third oil port and the sensing pipeline to open the balancing valve, and hydraulic oil is supplied to the rod chamber through the first oil port to retract the piston rod, thereby opening the jaw clamp and releasing the target workpiece.

[0030] Furthermore, after process S5, the pile sinking operation is repeated for multiple target workpieces, and after completion, the hydraulic system is cleaned and inspected to ensure normal operation of the equipment for the next operation.

[0031] Furthermore, in process S2, when the pressure of the hydraulic oil in the sensing pipe connected to the pilot port of the balancing valve increases to reach the starting pressure of the balancing valve, the balancing valve opens to conduct the rodless chamber.

[0032] Preferably, in process S2, the residual gas in the rodless cavity can be exhausted through the exhaust pipe and the exhaust hole to ensure that there is no air in the system to hinder the normal flow of the hydraulic oil.

[0033] Preferably, in process S2, when the hydraulic oil pressure in the pipeline is too high, the pressure can be quickly released through the pressure relief port on the rod pipeline, thereby protecting the hydraulic system and equipment.

[0034] Compared with the prior art, the technical solution of the present invention has the following beneficial effects:

[0035] ① By designing the first chamber and the second chamber in the inner cavity of the cylinder body, the hydraulic oil is filled in respectively to drive the piston rod to reciprocate, which effectively realizes the efficient driving of the hydraulic cylinder and ensures the smoothness and accuracy of the piston rod movement, which is suitable for high-load and high-frequency marine engineering operations; the rodless chamber controls the opening and closing of the balance valve through the sensor pipeline, automatically adjusts the oil circuit pressure during operation, prevents abnormal pressure increase, and further enhances the stability of marine engineering equipment.

[0036] ② The exhaust pipe and exhaust hole connected to the rodless cavity can timely remove residual gas, avoid the occurrence of cavitation, ensure the smooth flow of hydraulic oil in the hydraulic system, and improve the safety and reliability of marine engineering equipment.

[0037] ③ The opening and closing of the balance valve can be controlled through the sensing pipeline and the third oil port, which can achieve precise adjustment of the pressure in the vibration cylinder chamber, thereby flexibly controlling the speed of the piston rod movement and the vibration force of the vibration device.

[0038] ④ The pressure can be quickly released through the pressure relief port, ensuring the safe operation of the system under high pressure. At the same time, during the exhaust process of the rodless chamber, the residual gas is removed to ensure smooth flow of hydraulic oil, further improving the reliability of the vibration cylinder.

[0039] ⑤ The jaw clamp is driven by a vibrating oil cylinder, so that the reciprocating motion of the piston rod realizes the opening and closing of the jaws, which can quickly clamp or release the target workpiece. The clamping force is stable and firm, which meets the high requirements of pile sinking operations in marine engineering for clamping workpieces. It can work efficiently in a high-pressure, high-humidity and high-vibration marine environment, and is suitable for various construction scenarios such as pile sinking and fixing large marine equipment, providing reliable technical support for marine engineering construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the implementation mode will be briefly introduced below. Obviously, the drawings described below are only some implementation modes of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0041] Figure 1 It is a schematic diagram of the structure of a vibration cylinder used in offshore construction;

[0042] Figure 2 It is a side view of a vibration cylinder used in offshore construction;

[0043] Figure 3 It is a first structural schematic diagram of a vibrating hammer of a vibrating cylinder used in offshore construction;

[0044] Figure 4It is a second structural schematic diagram of a vibrating hammer of a vibrating cylinder used in offshore construction;

[0045] Figure 5 It is a schematic diagram of the connection between the vibration cylinder and the jaw clamp;

[0046] Figure 6 It is a schematic diagram of the structure of the jaw clamp.

[0047] The reference numerals are as follows:

[0048] 1. Cylinder body; 2. Piston rod; 3. First oil port; 4. Second oil port; 5. Third oil port; 6. Balance valve; 7. Pressure relief port; 8. Exhaust hole; 9. Lifting device; 901. Suspension bracket; 902. Hanging ear; 10. Vibration device; 1001. Frame; 1002. Eccentric motor; 1003. Eccentric shaft assembly; 11. Buffer device; 12. Jaw clamp. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the present application will be clearly and completely described below in conjunction with the drawings of the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the described embodiments, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0050] Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. "First", "second" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0051] Example 1

[0052] like Figure 1-6As shown, this embodiment discloses a vibrating oil cylinder for marine construction, comprising a piston rod 2 arranged in the inner cavity of a cylinder body 1, wherein the piston rod 2 divides the inner cavity of the cylinder body 1 into a first chamber and a second chamber, wherein the first chamber is located on the side where the piston rod 2 is located, and the second chamber is located on the opposite side of the piston rod 2, and the two chambers are respectively filled with hydraulic oil to drive the piston rod 2 and the cylinder body 1 to reciprocate;

[0053] The rod chamber and the rodless chamber are connected to the first oil port 3 and the second oil port 4 respectively; the rodless chamber is connected to the second oil port 4 through a rodless chamber pipeline, and a balancing valve 6 is arranged in the rodless chamber pipeline. A third oil port 5 is also arranged on the cylinder body 1, and the third oil port 5 is connected to the pilot port of the balancing valve 6 through a sensing pipeline, so as to control the opening and closing of the balancing valve 6.

[0054] When working, the hydraulic mechanism supplies hydraulic oil to the rod chamber through the first oil port 3 to retract the piston rod 2, and supplies oil to the pilot port of the balance valve 6 through the third oil port 5 and the sensing pipeline to open the balance valve 6; the piston rod 2 retracts to open the jaw clamp 12;

[0055] When the jaw clamp 12 is moved to the target workpiece, the hydraulic system is started, and hydraulic oil is supplied to the rod chamber through the second oil port 4 to extend the piston rod 2, and oil is supplied to the pilot port of the balance valve 6 through the third oil port 5 and the sensing pipeline to open the balance valve 6, and the piston rod 2 retracts to clamp the jaw clamp 12 tightly and close, so that the jaws close and clamp the target workpiece to ensure a firm clamping; the vibration cylinder can operate stably under complex working conditions such as high load and high frequency vibration, and the balance valve 6 is opened and closed by adjusting the third oil port to adapt to different vibration frequencies and working conditions, thereby enhancing the applicability and reliability of the offshore equipment;

[0056] When the hydraulic oil pressure is too high, the timely opening of the balance valve 6 can release the excess pressure in the rodless chamber, avoiding damage to the hydraulic system and the inside of the cylinder due to overload, thereby extending the service life of the marine equipment.

[0057] When the piston rod 2 needs to be extended, the hydraulic system supplies hydraulic oil to the second oil port 4 of the oil cylinder. The hydraulic oil flows into the rodless chamber through the rodless pipeline and the balance valve 6. The pressure in the rodless chamber gradually increases, that is, the output force increases. When the output force is greater than the load force, the piston rod 2 extends. At this time, the hydraulic oil in the rod chamber flows back to the oil tank through the first oil port 3.

[0058] When the piston rod 2 needs to be retracted, the hydraulic system supplies hydraulic oil to the first oil port 3 of the oil cylinder. A portion of the hydraulic oil enters the control port of the balance valve 6 through the rod pipeline, and the balance valve 6 is opened. The remaining hydraulic oil flows into the rod chamber. The pressure in the rod chamber gradually increases, that is, the output force increases. When the output force is greater than the load force, the piston rod 2 retracts. At this time, the hydraulic oil in the rod chamber flows back to the oil tank through the second oil port 4.

[0059] As a specific implementation, a notch is provided at one end of the cylinder body 1, a first oil port 3 is provided in the notch, the first oil port 3 is also connected to the rod chamber through a rod pipe, and the rod pipe is also connected to the sensing pipe of the balance valve 6, for controlling the opening and closing of the balance valve 6;

[0060] The rod pipeline is also provided with a plurality of pressure relief ports 7 for quickly releasing the excessive hydraulic oil pressure in the pipeline.

[0061] Specifically, after the hydraulic system is started, the hydraulic pump delivers hydraulic oil to the rod pipeline through the first oil port 3, and the hydraulic oil enters the rod chamber through the rod pipeline, thereby driving the piston rod 2 to move in the inner cavity of the cylinder body 1; then the hydraulic oil pressure of the rod pipeline is transmitted to the pilot port of the balancing valve 6 through the sensing pipeline in real time, and the balancing valve 6 decides whether to open or close according to the pressure signal of the pilot port, so as to control the connectivity between the rodless chamber and the hydraulic oil circuit; thereby effectively reducing the loss of the hydraulic system caused by overpressure or pressure fluctuations, and extending the service life of key components in the system (such as cylinder body, pipeline, seal).

[0062] When the hydraulic oil pressure in the rod pipeline increases to reach the pressure value set by the sensing pipeline, the sensing pipeline transmits the pressure signal to the balancing valve 6, and the balancing valve 6 automatically opens to connect the rodless chamber pipeline, allowing excess hydraulic oil to flow out and maintain the system pressure balance. Then the hydraulic oil pressure drops to the set lower limit value, and the sensing pipeline signal prompts the balancing valve 6 to close, isolating the rodless chamber from the oil circuit, maintaining the back pressure required for the rodless chamber, and ensuring the stability of the movement of the piston rod 2.

[0063] When the pressure in the rod pipeline increases abnormally due to external load or abnormal operation of the hydraulic system, if the pressure exceeds the set safety range, the pressure relief oil port 7 in the rod pipeline will automatically start, and then the pressure relief oil port 7 will quickly release excess hydraulic oil to reduce the pressure in the pipeline to a safe value range, thereby preventing the system from malfunctioning or being damaged due to overpressure.

[0064] As a specific implementation manner, the rodless cavity is further connected to an exhaust hole 8 via an exhaust pipeline for exhausting the gas in the rodless cavity.

[0065] Specifically, when the hydraulic system is started, the hydraulic oil enters the rodless chamber through the second oil port 4 and begins to drive the piston rod 2 to perform reciprocating motion; after the system is operated for the first time or maintained, there may be gas in the rodless chamber due to assembly, environmental and other factors. These gases need to be discharged through the exhaust pipe and exhaust hole 8 to ensure the normal operation of the hydraulic system.

[0066] When the hydraulic oil flows into the rodless cavity, the gas is squeezed by the hydraulic oil and enters the exhaust hole 8 through the exhaust pipeline. Since the exhaust hole 8 is set at the high point of the rodless cavity, the gas is lighter than the hydraulic oil, so that the gas is discharged first, and the hydraulic oil is prevented from leaking.

[0067] During the operation of the equipment, new gas accumulation may occur due to pressure fluctuations or the precipitation of trace dissolved air in the hydraulic oil. The exhaust pipe and exhaust hole 8 can continuously exhaust the gas in the rodless cavity when the system is running, keeping the purity and pressure stability of the hydraulic oil in the rodless cavity;

[0068] After the gas is exhausted, only hydraulic oil is left in the rodless chamber, and the exhaust hole 8 automatically stops exhausting, ensuring the system seal and pressure stability, thereby driving the piston rod 2 to operate smoothly; the automatic exhaust of gas in the system is realized, which significantly improves the efficiency, stability and reliability of the hydraulic system. This design can prevent cavitation, ensure stable pressure, and simplify maintenance operations, providing a guarantee for the long-term reliable operation of the vibration cylinder under complex working conditions.

[0069] Example 2

[0070] like Figure 1-6 As shown, this embodiment discloses a marine engineering equipment of a vibration cylinder for marine engineering construction, the marine engineering equipment includes a vibration hammer, the vibration hammer includes a hoisting device 9, a vibration device 10 and a jaw clamp 12; the hoisting device 9 is connected to the vibration device 10 through a buffer device 11, the bottom of the vibration device 10 is connected to the jaw clamp 12, and the jaw clamp 12 is driven by the vibration cylinder to implement clamping;

[0071] The jaw clamp 12 is composed of one or more pairs of jaw clamps, and the jaws are connected to the piston rod 2 of the vibration cylinder to convert the reciprocating motion of the piston rod 2 into the opening and closing action of the jaws to clamp or release the target workpiece.

[0072] When working, first connect the vibrating hammer to the lifting equipment such as a crane through the hoisting device 9, and check the connection status of the hoisting device 9 and the buffer device 11 to ensure that the installation is firm; confirm that the vibration device 10 is well connected to the buffer device 11, and the jaw clamp 12 is correctly installed at the bottom of the vibration device 10 and is connected to the vibration cylinder;

[0073] Then, the hydraulic system is started to supply hydraulic oil to the rod chamber through the first oil port 3, driving the piston rod 2 to retract and the jaws to open; then, the initial position of the jaw clamp 12 is adjusted, and the vibration hammer is moved above the target workpiece (such as a pile foundation or a steel pipe) to ensure that the workpiece is within the clamping range;

[0074] Then the hydraulic system is started to supply hydraulic oil to the rodless chamber through the second oil port 4, driving the piston rod 2 to extend, so that the jaws of the jaws close to clamp the workpiece, and by checking the clamping state, it is ensured that the jaw clamp 12 firmly grasps the target workpiece to prevent the workpiece from slipping during the vibration process;

[0075] Then the vibration device 10 is started, and the eccentric shaft assembly 1003 generates a periodic eccentric vibration force, which is transmitted to the jaw clamp 12 and the target workpiece through the frame; the vibration force and the deadweight of the workpiece act together to make the workpiece gradually sink into the soil or the seabed base during the vibration process;

[0076] When the target workpiece sinks to the predetermined position, the vibration device 10 is stopped and the application of the vibration force is stopped; then the hydraulic system is started to supply hydraulic oil to the rod chamber through the first oil port 3, driving the piston rod 2 to retract, so that the jaws of the jaws open and the workpiece is released;

[0077] The vibratory hammer is then moved to the next workpiece position, and the operations of clamping, vibratory piling and releasing are repeated until the installation of all target workpieces is completed; through the coordinated work of the vibratory hammer's hoisting device 9, vibration device 10 and jaw clamp 12, combined with the precise control of the hydraulic system, efficient, safe and stable vibratory piling operations are achieved.

[0078] Specifically, the jaw clamp 12 is connected to the vibration cylinder piston rod 2, and the opening and closing action of the jaws is realized through the reciprocating motion of the piston rod, which can quickly and stably clamp or release the target workpiece to meet the requirements of construction efficiency; the design of one or more pairs of jaw clamps enhances the adaptability of marine engineering equipment and can firmly clamp workpieces of different sizes and shapes, thereby greatly shortening the construction time, reducing manpower and marine engineering equipment investment, and improving construction economy.

[0079] As a specific implementation, the hanging device 9 includes a hanging bracket 901 and a hanging ear 902 which are detachably arranged; the hanging bracket 901 is connected to the vibration device 10 through the buffer device 11, and the top of the hanging bracket 901;

[0080] The vibration device 10 includes a frame 1001, an eccentric motor 1002 and an eccentric shaft assembly 1003; the frame 1001 is connected to the bottom of the suspension bracket 901 through a buffer device 11, and the eccentric motor 1002 is set in the frame 1001 and drives the eccentric shaft assembly 1003 in the frame 1001 through a chain belt.

[0081] Specifically, the suspension bracket 901 and the hook 902 of the lifting device 9 adopt a detachable design, which can facilitate the rapid installation and disassembly of the marine engineering equipment, significantly improve the operating efficiency of the marine engineering equipment, and reduce the construction preparation time; the design of the detachable hook 902 enhances the flexibility of the marine engineering equipment and can adapt to different lifting equipment and construction environments.

[0082] Specifically, the frame 1001, the eccentric motor 1002 and the eccentric shaft assembly 1003 of the vibration device 10 work together to achieve efficient vibration force output through chain drive; the eccentric shaft assembly 1003 can flexibly adjust the vibration frequency and vibration force according to construction requirements by adjusting the size and rotation speed of the eccentric block to adapt to the construction requirements of different working conditions;

[0083] The setting of the buffer device 11 can absorb the impact force transmitted to the suspension bracket 901 and the lifting equipment during the vibration process, protect the equipment from excessive vibration damage, and extend the service life of the equipment; the elastic structure of the buffer device 11 reduces the impact of vibration force on lifting equipment (such as cranes), and improves the safety of the construction process and the stability of the equipment; through the coordinated work of the suspension bracket 901, the buffer device 11 and the vibration device 10, the efficient transmission of vibration force and the effective absorption of vibration impact are achieved, which significantly improves the safety, stability and construction efficiency of the equipment.

[0084] As a specific embodiment, the buffer device 11 includes a connecting frame and a buffer spring. The vibration device 10 can be slidably connected to the bottom of the lifting device 9 in a vertical direction through the connecting frame. The buffer spring is arranged in the connecting frame and abuts against the lifting device 9 and the vibration device 10, so as to absorb the vibration impact generated during the operation of the vibration hammer.

[0085] Specifically, the buffer spring is arranged in the connecting frame, and absorbs the vibration force generated by the vibration device 10 through elastic deformation, thereby significantly reducing the direct impact of the vibration force on the lifting device 9 and its suspension equipment; thereby reducing the wear of the equipment structure caused by vibration, extending the service life of the equipment, and improving the running stability of the equipment.

[0086] The design of the connecting frame that can slide in the vertical direction enables the vibration device 10 to dynamically adjust its position under the action of vibration force, effectively preventing equipment displacement or shaking caused by excessive vibration force, and improving the stability of equipment operation; through the connecting frame and buffer spring design of the buffer device 11, it can achieve efficient transmission of vibration force and impact buffering, while significantly improving the stability and safety of the vibration hammer equipment.

[0087] Example 3

[0088] like Figure 1-6 As shown, this embodiment discloses a piling method for marine engineering equipment equipped with a vibration cylinder, and the piling method for marine engineering equipment equipped with a vibration cylinder comprises the following steps:

[0089] S1: Hang the vibrating hammer device on the lifting device through the lifting device 9, and then check the connection status of the buffer device 11 to ensure that the buffer device 11 can be slidably connected to the lifting device 9, and confirm that the buffer spring is in a normal elastic state;

[0090] S2: Then the hydraulic system is started to send the hydraulic oil to the vibrating cylinder, and the hydraulic oil is supplied to the rod chamber through the first oil port 3 to retract the piston rod 2, and the oil is supplied to the pilot port of the balance valve 6 through the third oil port 5 and the sensing pipeline to open the balance valve 6; the piston rod 2 is retracted to open the jaw clamp 12, thereby adjusting the initial position of the jaw clamp 12 to ensure that the target workpiece to be clamped is within the clamping range;

[0091] S3: Move the jaw clamp 12 to the target workpiece, then start the hydraulic system, and supply hydraulic oil to the rod chamber through the second oil port 4 to extend the piston rod 2, and supply oil to the pilot port of the balance valve 6 through the third oil port 5 and the sensing pipeline to open the balance valve 6, and retract the piston rod 2 to clamp the jaw clamp 12 tightly, so that the jaws close to clamp the target workpiece to ensure a firm clamping;

[0092] S4: Then the vibration device 10 is started, and the vibration device 10 generates a periodic eccentric vibration force, which is transmitted to the jaw clamp 12 and the clamped target workpiece, and then the target workpiece can sink into the soil under the action of the vibration force and its own gravity;

[0093] S5: When the target workpiece reaches the appropriate position, the vibration of the vibration device 10 is stopped, and then oil is supplied to the pilot port of the balance valve 6 through the third oil port 5 and the sensor pipeline to open the balance valve 6, and hydraulic oil is supplied to the rod chamber through the first oil port 3 to retract the piston rod 2, thereby opening the jaw clamp 12 and releasing the target workpiece.

[0094] Specifically, the vibrating cylinder drives the jaw clamp 12, and the opening and closing action of the jaw clamp 12 is realized by the telescopic movement of the piston rod 2, and the operation of clamping and releasing the workpiece is efficient and stable; the precise docking of the jaw clamp 12 with the target workpiece can reduce construction errors, ensure the correct positioning of the workpiece, and improve construction efficiency.

[0095] Specifically, the vibration method realizes efficient clamping, precise release and rapid pile sinking of the target workpiece through the coordinated work of the vibration cylinder and the jaw clamp 12, the vibration device 10 and the buffer device 11. Its stable and safe system design is suitable for complex marine engineering environments, significantly improves construction efficiency and quality, and reduces equipment maintenance costs and environmental impacts. It is an important technical solution in marine engineering vibration operations.

[0096] Specifically, after step S5, the pile sinking operation is repeated for a plurality of target workpieces, and after completion, the hydraulic system is cleaned and inspected to ensure normal operation of the equipment for the next operation.

[0097] As an embodiment, in process S2, when the pressure of the hydraulic oil in the sensing pipe connected to the pilot port of the balancing valve 6 increases to reach the starting pressure of the balancing valve 6, the balancing valve 6 opens to conduct the rodless chamber.

[0098] Specifically, after the balance valve 6 is opened, the hydraulic oil can be quickly conducted to the oil return line, so that the pressure in the rodless chamber is always within the design range, avoiding the unstable movement of the piston rod due to pressure fluctuations; the dynamic balance of the system pressure ensures the long-term stable operation of the vibration cylinder and improves the construction efficiency;

[0099] By real-time monitoring of the rodless chamber pressure through the sensing pipeline and utilizing the 6-quasi-control mechanism of the balancing valve, the dynamic pressure balance and stable operation of the hydraulic system are achieved; thereby improving the safety, reliability and response efficiency of the hydraulic system, while reducing equipment wear and energy consumption. It is particularly suitable for complex, high-pressure marine engineering operations, and provides solid technical support for efficient and safe construction.

[0100] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A vibrating cylinder for marine construction, characterized in that: It comprises a piston rod (2) arranged in the inner cavity of a cylinder body (1), wherein the piston rod (2) divides the inner cavity of the cylinder body (1) into a first chamber and a second chamber, wherein the first chamber is located on the side where the piston rod (2) is located, and the second chamber is located on the side opposite to the piston rod (2), and the two chambers are respectively filled with hydraulic oil to drive the piston rod (2) to perform reciprocating motion in the cylinder body (1); The rod chamber and the rodless chamber are connected to the first oil port (3) and the second oil port (4) respectively; the rodless chamber is connected to the second oil port (4) via a rodless chamber pipeline, a balancing valve (6) is provided in the rodless chamber pipeline, and a third oil port (5) is also provided on the cylinder body (1), and the third oil port (5) is connected to the pilot port of the balancing valve (6) via a sensing pipeline, so as to control the opening and closing of the balancing valve (6).

2. The vibrating cylinder for marine construction according to claim 1, characterized in that: The cylinder body (1) has a notch at its port, a first oil port (3) is provided in the notch, the first oil port (3) is also connected to a rod chamber via a rod pipeline, the rod pipeline is also connected to a sensing pipeline of a balancing valve (6), and is used to control the opening and closing of the balancing valve (6).

3. The vibrating cylinder for marine construction according to claim 2, characterized in that: The rod pipeline is also provided with a plurality of pressure relief ports (7) for quickly releasing excessive hydraulic oil pressure in the pipeline.

4. The vibrating cylinder for marine construction according to claim 1, characterized in that: The rodless cavity is also connected to an exhaust hole (8) via an exhaust pipeline, which is used to exhaust the gas in the rodless cavity.

5. A marine engineering equipment using the vibration cylinder assembly according to any one of claims 1 to 4, characterized in that: The offshore equipment comprises a vibratory hammer, which comprises a hoisting device (9), a vibrating device (10) and a jaw clamp (12); the hoisting device (9) is connected to the vibrating device (10) via a buffer device (11), the bottom of the vibrating device (10) is connected to the jaw clamp (12), and the jaw clamp (12) is driven by a vibrating oil cylinder to implement clamping; The jaw clamp (12) is composed of one or more pairs of jaw clamps, and the jaws are connected to the piston rod (2) of the vibration cylinder and are used to convert the reciprocating motion of the piston rod (2) into the opening and closing action of the jaws to clamp or release the target workpiece.

6. The offshore equipment equipped with a vibrating cylinder for offshore construction according to claim 5, characterized in that: The hanging device (9) comprises a hanging bracket (901) and a hanging ear (902) which are detachably arranged; the hanging bracket (901) is connected to the vibration device (10) via a buffer device (11), and the top of the hanging bracket (901) is provided.

7. The offshore equipment equipped with a vibrating cylinder for offshore construction according to claim 6, characterized in that: The vibration device (10) comprises a frame (1001), an eccentric motor (1002) and an eccentric shaft assembly (1003); the frame (1001) is connected to the bottom of the suspension bracket (901) via a buffer device (11); the eccentric motor (1002) is arranged in the frame (1001) and drives the eccentric shaft assembly (1003) in the frame (1001) via a chain belt.

8. The offshore equipment equipped with a vibrating cylinder for offshore construction according to claim 5, characterized in that: The buffer device (11) comprises a connecting frame and a buffer spring. The vibrating device (10) can be slidably connected to the bottom of the hanging device (9) in a vertical direction via the connecting frame. The buffer spring is arranged in the connecting frame and abuts against the hanging device (9) and the vibrating device (10) to absorb the vibration impact generated during the operation of the vibrating hammer.

9. A piling method for marine equipment equipped with a vibrating cylinder for marine construction as claimed in any one of claims 5 to 8, characterized in that: The piling method of the offshore equipment equipped with a vibrating oil cylinder comprises the following steps: S1: Hang the vibrating hammer device on the lifting device through the lifting device (9), then check the connection status of the buffer device (11), ensure that the buffer device (11) can be slidably connected to the lifting device (9), and confirm that the buffer spring is in a normal elastic state; S2: Then the hydraulic system is started to deliver hydraulic oil to the vibrating oil cylinder, and hydraulic oil is supplied to the rod chamber through the first oil port (3) to retract the piston rod (2), and oil is supplied to the pilot port of the balance valve (6) through the third oil port (5) and the sensing pipeline to open the balance valve (6); the piston rod (2) is retracted to open the jaw clamp (12), thereby adjusting the initial position of the jaw clamp (12) to ensure that the target workpiece to be clamped is within the clamping range; S3: Move the jaw clamp (12) to the target workpiece, then start the hydraulic system, and supply hydraulic oil to the rod chamber through the second oil port (4) to extend the piston rod (2), and supply oil to the pilot port of the balance valve (6) through the third oil port (5) and the sensing pipeline to open the balance valve (6), so that the piston rod (2) retracts and the jaw clamp (12) is clamped and closed, thereby closing the jaws to clamp the target workpiece and ensuring a secure clamping; S4: Then the vibration device (10) is started, and the vibration device (10) generates a periodic eccentric vibration force, which is transmitted to the jaw clamp (12) and the clamped target workpiece, and then the target workpiece can sink into the soil under the action of the vibration force and its own gravity; S5: When the target workpiece reaches the appropriate position, the vibration of the vibration device (10) is stopped, and then oil is supplied to the pilot port of the balance valve (6) through the third oil port (5) and the sensing pipeline to open the balance valve (6), and hydraulic oil is supplied to the rod chamber through the first oil port (3) to retract the piston rod (2), thereby opening the jaw clamp (12) and releasing the target workpiece.

10. The piling method according to claim 9, characterized in that: In process S2, when the pressure of the hydraulic oil in the sensing pipe connected to the pilot port of the balancing valve (6) increases to reach the starting pressure of the balancing valve (6), the balancing valve (6) opens to conduct the rodless chamber.

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