An on-line lubricated lifting device for a slurry transfer hopper and method of use

Abstract

The application discloses a mud sand transport sand hopper online lubrication lifting device and a use method thereof, and belongs to the technical field of lifting devices. The mud sand transport sand hopper online lubrication lifting device comprises a winch fixed on a ship deck, and further comprises a steel wire rope, the steel wire rope is wound on the winch and connected with a ship bridge, the ship bridge is rotatably connected with the ship deck through a pin shaft, and a pump pipe group for providing seawater for a sand hopper body on the ship deck is arranged on the ship bridge; and an online lubrication system is arranged along a steel wire rope path, and a fresh water flushing nozzle for flushing the steel wire rope is further arranged on the lower side of the online lubrication system; through linkage of multiple components, pretreatment cleaning, deep forced penetration lubrication, auxiliary penetration and quantitative forming scraping of the steel wire rope are sequentially completed, deep and uniform lubrication can be automatically completed in the steel wire rope winding and unwinding operation, and the service life and operation safety of the steel wire rope under severe working conditions are remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of lifting device technology, and in particular to an online lubrication lifting device for a sand transfer hopper and its usage method. Background Technology

[0002] Land reclamation is primarily accomplished using dredgers, with trailing suction hopper dredgers and cutter suction dredgers being the main types in the industry. However, the shallow draft of the construction area makes it difficult for trailing suction hopper dredgers and cutter suction dredgers to enter, and the cost of using dredgers for dredging operations is relatively high. To adapt to the diversity of projects and meet project needs, cutter suction dredgers are often modified. Due to national environmental protection requirements and resource extraction controls, using overseas sand sources or manufactured sand transported to the project site via belt conveyor has become a new method of supplying materials for land reclamation. The modification of cutter suction dredgers mainly involves removing the original cutter head and its drive system, and adding a sand hopper device to the front end of the underwater pump on the bridge frame to collect sand and achieve sand-water mixing, which is then pressure-transported through water pipelines to a discharge point several kilometers away.

[0003] In the aforementioned technical upgrade plan, the sand transfer bucket is fixed on the ship's deck, but the underwater pump needs to be lowered below the water surface with the bridge frame to perform pumping operations. The bridge frame is connected to a winch on the deck via steel wire ropes, and the winch drives its raising and lowering. However, the bridge frame and its underwater pump need to be raised and lowered frequently in the underwater muddy environment for long-term operation, which poses a severe challenge to the driving steel wire ropes.

[0004] During the lifting process, wire ropes not only bear enormous tensile forces, but also become susceptible to corrosion when mixed with mud, sand, and seawater as they pass over pulleys. Therefore, lubricating grease must be applied to their outer surface. Existing lubricating grease is simply applied to the outside of the wire rope, relying solely on the pressure exerted by the rope as it passes over the pulley to penetrate between the strands. However, this unidirectional pressure from the pulley means the grease can only penetrate half a circumference of the wire rope in contact with the pulley, leaving the "inner" and more critical areas unlubricated and unprotected. This results in uneven lubrication within the wire rope, causing wear and corrosion to begin in these "lubrication dead zones." Furthermore, grease failure leads to frequent wire rope replacements, causing construction interruptions and impacting efficiency. Traditional manual lubrication methods during downtime are inefficient and cannot meet the requirements of continuous operation. Summary of the Invention

[0005] The purpose of this invention is to solve the problems existing in the prior art, and to propose an online lubrication lifting device for sand transfer buckets and its usage method.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An online lubrication lifting device for a sand transfer hopper includes a winch fixed to the deck of a ship, and further includes:

[0008] A steel wire rope is wound on a winch and connected to a ship bridge, which is rotatably connected to the ship deck via a pin. The ship bridge is equipped with a pump pipe assembly for supplying seawater to the sand bucket body on the ship deck.

[0009] And an online lubrication system, which is laid along the wire rope path, and a fresh water flushing nozzle for rinsing the wire rope is also provided on the lower side of the online lubrication system;

[0010] The online lubrication system includes a pretreatment component for cleaning the wire rope, a deep lubrication component for forcibly penetrating lubricating grease into the gaps between the strands inside the wire rope, an auxiliary lubrication component for assisting the lubricating grease to penetrate into the gaps between the strands inside the wire rope, and a quantitative forming component for scraping off excess grease from the outside of the wire rope.

[0011] Preferably, the ship deck is provided with a high support and a low support, both of which are equipped with fixed pulleys. The end of the ship bridge away from the pin is provided with a movable pulley. The end of the wire rope away from the winch passes sequentially through the fixed pulleys of the high and low supports, the movable pulley at the end of the ship bridge, and is fixedly connected to the high support.

[0012] Preferably, the pretreatment component and the auxiliary lubrication component have the same structure, both including a support plate fixedly connected to the low bracket, a movable tube rotatably connected to the support plate, a rotating rod symmetrically rotatably arranged on both sides of the movable tube, a movable tube axially slidingly arranged on the outside of the rotating rod, an elastic telescopic rod fixedly connected to the end of the movable tube, and an arc-shaped pressure plate connected to the end of the elastic telescopic rod away from the movable tube.

[0013] The outer side of the rotating rod is provided with a reciprocating spiral groove, and a fixing block that cooperates with the reciprocating spiral groove is fixed inside the moving tube;

[0014] The rotating rod is fixed with a movable bevel gear at one end outside the movable tube, and a fixed bevel gear that meshes with the movable bevel gear is provided on the support plate.

[0015] Preferably, a support plate is fixed on the low support, a drive rod is rotatably arranged between the support plate and the support plate, a drive gear is fixed on the drive rod, a movable gear meshing with the drive gear is arranged on the movable tube, and a drive motor for driving the drive rod to rotate is fixed on the support plate.

[0016] Preferably, a rotating shaft is rotatably provided inside the moving tube, a secondary bevel gear is provided on the rotating shaft, an eccentric shaft is also provided on the rotating shaft, a movable block is sleeved on the eccentric shaft, a sliding rod is movably provided on the movable block, and the end of the sliding rod away from the movable block passes through the moving tube and is connected to the arc-shaped pressure plate.

[0017] The rotating rod has a keyway that slides within it. The end of the rotating rod is provided with a main bevel gear that meshes with the secondary bevel gear. An L-shaped connecting plate is movably arranged between the rotating rod and the rotating shaft.

[0018] Preferably, the deep lubrication assembly includes a sleeve that is fixedly connected to the movable tube of the auxiliary lubrication assembly via a connecting plate. The sleeve is fitted on the outside of the wire rope. A spiral guide groove is formed on the inner wall of the sleeve. The top of the sleeve is connected to a feeding seat via a rotary joint. The feeding seat is fixedly connected to the low support via a connecting plate.

[0019] The oil inlet channel of the feeding seat is connected to an independent new grease supply pipeline, which is connected to the oil supply equipment.

[0020] Preferably, the quantitative forming component includes a conical hopper fixedly connected to the movable tube of the auxiliary lubrication component via a connecting rod. The inner wall of the conical hopper is provided with an asymmetrical spiral groove. The low support is connected to a receiving shell via a support rod. A material passage is formed between the inner wall of the receiving shell and the inner wall of the conical hopper. An oil return port is provided at the bottom of the receiving shell.

[0021] Preferably, it also includes an oil recovery and recycling system, the oil recovery and recycling system comprising:

[0022] The inlet of the recovery filter is connected to the oil return port through a first recovery pipeline, and a pump body is provided on the first recovery pipeline for pumping grease.

[0023] The inlet of the recovery pump is connected to the outlet of the recovery filter via a second recovery pipeline, and the recovery pump is fixed on the support plate of the auxiliary lubrication assembly.

[0024] The outlet of the recovery pump is connected to a recovery nozzle that points to the wire rope in the area of ​​the auxiliary lubrication component via a third recovery pipeline, which is used to spray the filtered recovered grease onto the surface of the wire rope for lubrication.

[0025] Preferably, the support plate of the pretreatment component is provided with a negative pressure adsorption system, which includes a dust suction port, a conveying pipe, a primary separator, a secondary filter, and a vacuum generator to provide negative pressure to the system; the dust suction port is connected to the inlet of the primary separator through the conveying pipe, the gas outlet of the primary separator is connected to the inlet of the secondary filter, and the outlet of the secondary filter is connected to the vacuum generator; the bottom of the primary separator is provided with a sealed collection container for collecting the separated grease and solid waste.

[0026] This invention also discloses a method for using an online lubrication and lifting device for a sand transfer hopper, comprising the following steps:

[0027] S1: Sand hopper sand removal operation:

[0028] The winch releases the wire rope, which changes direction via the fixed pulleys on the high and low supports, causing the ship's bridge and its end pulleys to rotate and descend around the hinge point with the ship's deck. At this time, the pump pipe assembly installed on the ship's bridge moves down to a predetermined depth below the water surface, the pump is started, and the pump pipe assembly draws seawater from the seabed and injects it into the sand hopper body on the ship's deck. It mixes with the sand loaded in the sand hopper body to form a sand-water mixture, which is ready to be transported through the pipeline.

[0029] S2: Cable tray retracted:

[0030] After the sand extraction operation is completed, the ship's bridge and the pump pipe assembly on it need to be retrieved. At this time, the winch is controlled to wind up the wire rope. During the process of the wire rope being pulled up and retrieved from underwater, the fresh water flushing nozzles installed on the lower side of the online lubrication system are turned on. High-pressure fresh water is used to initially flush the wire rope, which is covered with seawater and silt, and to wash away external salt and solid impurities, so as to prevent corrosive substances from directly entering the online lubrication system and causing system pollution and lubrication failure.

[0031] S3: Online Preprocessing

[0032] Start the drive motor, and the drive rod drives the drive gear to mesh with the movable gears on the pretreatment component and the auxiliary lubrication component. The movable gears drive the movable tube to rotate.

[0033] After being rinsed, the wire rope first enters the pretreatment component, causing the movable tube of the pretreatment component to drive the rotating rods on both sides to revolve around the wire rope. At the same time, the movable bevel gear at the end of the rotating rod of the pretreatment component meshes with the fixed bevel gear, forcing the rotating rod to rotate. The rotation of the rotating rod, through its reciprocating spiral groove and its engagement with the fixed block inside the movable tube, is converted into the movable tube driving the arc-shaped pressure plate to reciprocate along the axial direction of the wire rope, thus rubbing the wire rope. The rotation of the rotating rod is also transmitted through the internal rotating rod, main bevel gear, and secondary bevel gear, driving the rotating shaft and eccentric shaft to rotate. The eccentric shaft, through the movable block and slide rod, converts the rotational motion into high-frequency radial vibration of the arc-shaped pressure plate. The arc-shaped pressure plate simultaneously performs a compound motion of revolving around the rope, rubbing, and vibrating, powerfully peeling off the old grease, salt crystals, and stubborn dirt from the surface and shallow layers of the wire rope, and squeezing them to the surface.

[0034] As the released steel wire rope moves to the working area of ​​the negative pressure adsorption system, a negative pressure is generated at the suction port, which promptly sucks away the squeezed-out dirt. The dirt is then separated and collected by the primary separator and the secondary filter, ensuring that the steel wire rope exposes a clean and activated metal surface, creating conditions for subsequent deep lubrication.

[0035] S4: Deep Lubrication

[0036] After pretreatment, the clean steel wire rope enters the deep lubrication assembly. The sleeve of this assembly is driven to rotate at high speed by the movable tube of the auxiliary lubrication assembly through the connecting plate. Fresh grease enters the inner cavity of the rotating sleeve through the feeding seat and the rotary joint. The spiral guide groove on the inner wall of the sleeve rotates at high speed with the sleeve, generating a forced pumping force along the axial direction of the steel wire rope to the viscous grease that fills the gap between the sleeve and the steel wire rope. Under the action of this pumping force, the grease is forced into the gap between the strands inside the steel wire rope, achieving deep filling from the inside out, overcoming the shortcomings of the traditional method that relies only on external application and passive squeezing.

[0037] S5: Auxiliary lubrication and preliminary molding:

[0038] After deep penetration, the wire rope enters the auxiliary lubrication component. The structure of this component is exactly the same as that of the pretreatment component, but the purpose of the work is different. Here, the combined motion of alternating kneading and high-frequency vibration mainly kneads the grease attached to the surface of the wire rope into the gaps between the strands, and initially flattens and homogenizes the unevenly attached grease after deep lubrication, so that the grease layer on the surface of the wire rope reaches a uniform initial state.

[0039] S6: Quantitative molding and grease recovery:

[0040] The wire rope then enters the quantitative forming component. The high-speed rotating conical bucket generates a strong centrifugal force, which forms a ring-shaped grease film of extremely uniform thickness on its inner wall. When the wire rope passes through the small opening of the conical bucket, the fixed gap between the small opening and the wire rope precisely scrapes off the excess grease on the surface. The scraped excess grease is thrown to the inner wall of the fixed receiving shell under the action of centrifugal force and flows to the bottom oil return port.

[0041] S7: Grease recycling and reuse:

[0042] The scraped excess grease is pumped to the recovery filter through the first recovery pipeline by the pump body to filter out the very few impurities mixed in. The filtered clean recovery grease is pumped by the recovery pump to the recovery nozzle in the auxiliary lubrication component area and evenly sprayed on the surface of the wire rope that has completed the pretreatment and is about to enter the auxiliary lubrication component to fill the gaps.

[0043] S8: System Pause and Preparation:

[0044] Once the wire rope is fully retracted and the ship's bridge is reset, the online lubrication system will automatically stop working and enter standby mode. The online lubrication system will not work during the next release of the wire rope and lowering of the ship's bridge for sand retrieval operations.

[0045] Compared with the prior art, the present invention provides an online lubrication lifting device for a sand transfer hopper and its usage method, which has the following beneficial effects:

[0046] 1. In this invention, when the sleeve rotates at high speed under drive, the spiral guide groove on its inner wall acts like a rotating screw pump, generating a strong and unidirectional axial pumping force on the grease filling the gap between the sleeve and the wire rope. Unlike the unidirectional squeezing by pulleys, it actively and forcibly "injects" the high-viscosity grease into every tiny strand gap inside the wire rope from multiple directions, achieving uniform filling of the grease from the core to the surface of the wire rope, eliminating lubrication dead zones, significantly delaying internal corrosion and fretting wear from the root, extending the service life of the wire rope several times, greatly reducing the risk of sudden breakage caused by internal corrosion, ensuring the safety and continuity of offshore operations, and solving the problem of "internal corrosion, pitting aggravation, and breakage from the inside out" caused by the inability of grease to penetrate the internal strand gaps in traditional lubrication methods.

[0047] 2. In this invention, the pretreatment component and the auxiliary lubrication component utilize a drive mechanism to drive an alternating kneading and high-frequency vibrating arc-shaped pressure plate to perform deep cleaning and coating on the wire rope. The quantitative forming component, through a rotating conical bucket and its inner wall's asymmetric spiral groove, scrapes the grease off the surface of the wire rope to a preset, precise, and uniform thickness under the synergistic effect of centrifugal force. The scraped-off excess grease is recycled, filtered, and re-sprayed. This fully automatic operation during the wire rope winding and unwinding process requires no manual intervention and not only provides extremely high lubrication uniformity, eliminating local grease accumulation or loss, but also increases grease utilization by more than 40%, significantly reducing maintenance costs and downtime, and meeting the needs of high-intensity continuous operation.

[0048] 3. In this invention, the freshwater rinsing nozzle can immediately flush away most of the corrosive salts and abrasive silt when the wire rope comes out of the water. Subsequently, the pretreatment component, combined with the negative pressure adsorption system, uses alternating kneading and high-frequency vibration to efficiently break down and peel off stubborn old grease and deep-seated dirt. At the same time, the negative pressure suction port removes it immediately, providing a clean substrate for subsequent lubrication. Finally, the deeply penetrated and quantitatively shaped grease forms a dense, uniform, and firm oil film protective layer on the surface of the wire rope. Through the synergistic effect of physical rinsing, mechanical cleaning, and chemical protection, the wire rope is thoroughly maintained in each working cycle, and its resistance to seawater corrosion and silt abrasion is significantly improved, fundamentally reducing the performance degradation of the wire rope caused by environmental erosion.

[0049] 4. In this invention, excess grease that is not contaminated and has good performance, scraped off by the quantitative forming component, is collected in the receiving shell. After the recovery filter removes any trace impurities that may be mixed in, it is transported by the recovery pump to the nozzle at the auxiliary lubrication component and re-sprayed onto the wire rope for initial lubrication. This forms a circular path of "deep lubrication (using new oil), quantitative scraping (recovering excess oil), and auxiliary lubrication (using recovered oil)," turning disposable grease into a recyclable resource. This significantly reduces the consumption of fresh grease and the amount of waste grease to be processed. At the same time, combined with the negative pressure adsorption waste grease treatment system in the pretreatment process, it realizes the classified management and refined treatment of "new oil-recovered oil-waste oil," improving economic efficiency while minimizing potential pollution to the marine environment, which is in line with the concept of green construction. Attached Figure Description

[0050] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0051] Figure 2 This is a schematic diagram of the external structure of the low support frame of the present invention;

[0052] Figure 3 This is a schematic cross-sectional view of the low-profile support structure of the present invention;

[0053] Figure 4 for Figure 3 Enlarged structural diagram of section A in the middle;

[0054] Figure 5 This is a schematic diagram of the online lubrication system of the present invention. Figure 1 ;

[0055] Figure 6 for Figure 5 Enlarged structural diagram of section B;

[0056] Figure 7 This is a schematic diagram of the online lubrication system of the present invention. Figure 2 ;

[0057] Figure 8 This is a schematic diagram of the sleeve structure of the present invention;

[0058] Figure 9 This is a schematic diagram of the preprocessing component of the present invention;

[0059] Figure 10 This is a schematic cross-sectional view of the active tube of the pretreatment component of the present invention.

[0060] Figure 11 for Figure 10 Enlarged structural diagram of section C;

[0061] Figure 12This is a cross-sectional structural diagram of the conical hopper and receiving shell of the present invention.

[0062] In the diagram: 1. Ship deck; 101. High support; 102. Low support; 103. Fixed pulley; 2. Winch; 201. Wire rope; 3. Ship bridge; 301. Moving pulley; 4. Sand bucket body; 5. Pump assembly; 6. Freshwater flushing nozzle; 7. Support plate; 701. Movable pipe; 7011. Movable gear; 7012. Connecting plate; 7013. Connecting rod; 702. Rotating rod; 7021. Reciprocating spiral groove; 7022. Movable bevel gear; 703. Moving pipe; 7031. Fixed block; 704. Elastic telescopic rod; 705. Arc-shaped pressure plate; 706. Fixed bevel gear; 8. Support plate; 80 1. Drive rod; 8011. Drive gear; 802. Drive motor; 9. Rotating shaft; 901. Secondary bevel gear; 902. Eccentric shaft; 903. Movable block; 904. Slide rod; 10. Rotating rod; 1001. Main bevel gear; 11. L-shaped connecting plate; 12. Sleeve; 121. Spiral guide channel; 122. Feeding seat; 123. Supply pipeline; 13. Conical hopper; 14. Receiving shell; 15. Recovery pump; 151. Recovery filter; 16. Vacuum generator; 161. Dust suction port; 162. Conveying pipeline; 163. Primary separator; 164. Secondary filter; 165. Sealed collection container. Detailed Implementation

[0063] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0064] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0065] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0066] like Figures 1 to 3 As shown, this embodiment proposes an online lubrication and lifting device for a sand transfer bucket, including a winch 2 fixed on a ship deck 1, and further including a steel wire rope 201 and an online lubrication system; the steel wire rope 201 is wound on the winch 2 and connected to the ship bridge 3, the ship bridge 3 is rotatably connected to the ship deck 1 via a pin, and the ship bridge 3 is provided with a pump pipe assembly 5 for providing seawater to the sand bucket body 4 on the ship deck 1; the online lubrication system is laid along the path of the steel wire rope 201, and a fresh water flushing nozzle 6 for flushing the steel wire rope 201 is also provided on the lower side of the online lubrication system; wherein, the online lubrication system includes a pretreatment component for cleaning the steel wire rope 201, a deep lubrication component for forcibly penetrating lubricating grease into the gaps between the strands inside the steel wire rope 201, an auxiliary lubrication component for assisting the lubricating grease to penetrate into the gaps between the strands inside the steel wire rope 201, and a quantitative forming component for scraping off excess grease from the outside of the steel wire rope 201.

[0067] Specifically, the winch 2 releases the wire rope 201, which, through a pulley system, lowers the ship's bridge 3 around its hinge point with the ship's deck 1 until the pump assembly 5 at its front end reaches the predetermined underwater working depth. The pump is then activated, pumping seawater through the pump assembly 5 into the sand hopper 4 on the deck, completing the sand-water mixing and feeding process. During this stage, the online lubrication system is typically not in operation or is in standby mode with low power consumption. After the sand extraction operation is completed, the winch 2 rewinds the wire rope 201, pulling the bridge 3 and pump assembly 5 out of the water. When the wire rope 201 is rewound and passes through the online lubrication system, the system is activated and executes the following automatic maintenance procedures in sequence. A protective casing should be installed on the outside of the online lubrication system to prevent excessive intrusion of dust and impurities.

[0068] Preliminary rinsing: The steel wire rope 201 first passes through the fresh water rinsing nozzle 6 area. The high-pressure fresh water washes away most of the seawater, salt crystals and loose mud and sand carried on its surface, preparing it for subsequent precision lubrication.

[0069] Deep cleaning: After rinsing, the steel wire rope 201 enters the pretreatment component, which further removes residual stubborn dirt, old grease and moisture through negative pressure adsorption and other methods, so that the surface of the steel wire rope 201 reaches a clean state of "metal color", providing a good foundation for grease adhesion.

[0070] Forced penetration lubrication: The clean wire rope 201 enters the deep lubrication assembly. Through its unique structure, the assembly applies a radial or axial forced force while the lubricating grease is coated onto the surface of the wire rope 201, "squeezing" or "pumping" the grease into the tiny gaps between each strand and each wire inside the wire rope 201, achieving deep lubrication from the inside out.

[0071] Assisted penetration and homogenization: The wire rope 201 then passes through the auxiliary lubrication component, which helps the initially penetrated grease to be better distributed and deepened through vibration, pressure and other means, and ensures that the gaps between the strands are fully filled;

[0072] Quantitative scraping and forming: Finally, the wire rope 201 passes through the quantitative forming component. The function of this component is to scrape off the uneven and excessively thick grease on the surface of the wire rope 201, so that a grease protective film with precise thickness, uniform smoothness and firm adhesion is formed on the outer surface of the wire rope 201, which not only ensures the lubrication and anti-corrosion effect, but also avoids grease waste and dripping.

[0073] Cyclic operation: The above steps are performed automatically and continuously during each retraction of the ship's bridge 3. When the wire rope 201 is fully retracted and the bridge is reset, the online lubrication system can automatically stop. When the bridge is lowered again, the system enters standby or low power consumption state again.

[0074] This system integrates multiple processes, including cleaning, deep lubrication, and quantitative coating of the complex wire rope 201, into an online system. This system is automatically completed synchronously with the ship's bridge deployment and retrieval operations, changing the traditional, outdated maintenance methods that relied on downtime, manual labor, and surface coating. This significantly improves maintenance efficiency and quality, ensuring the continuity of operations. It ensures that the lubricating grease can effectively penetrate the gaps between the strands of the wire rope 201 and form a uniform protective film on the outside. This fundamentally solves the problem of traditional methods where lubricating grease only adheres to the surface and is prone to internal corrosion. It significantly delays failure of the wire rope 201 caused by internal corrosion and fretting wear, extending its service life several times over and reducing replacement frequency and costs.

[0075] like Figure 1 , Figure 2 and Figure 3As shown, in a preferred embodiment, based on the above method, a high support 101 and a low support 102 are further provided on the ship deck 1. Fixed pulleys 103 are provided on both the high support 101 and the low support 102. A movable pulley 301 is provided at the end of the ship bridge 3 away from the pin. The end of the wire rope 201 away from the winch 2 passes through the fixed pulleys 103 of the high support 101 and the low support 102 in sequence, and the movable pulley 301 at the end of the ship bridge 3 and is fixedly connected to the high support 101.

[0076] Specifically, when it is necessary to lower the ship's bridge 3 to allow its front pump pipe assembly 5 to enter the water, the winch 2 is controlled to release the wire rope 201. Since the end of the wire rope 201 is fixed to the high support 101, the release action of the winch 2 increases the length of the wire rope 201 passing over the movable pulley 301. This causes the free end of the bridge connected to the movable pulley 301 to move downwards under its own weight, driving the entire bridge to rotate around its hinge pin with the deck, thus realizing the lowering action. The rolling friction of the wire rope 201 as it passes through the pulleys reduces the resistance to movement. When it is necessary to retract the bridge, the winch 2 is controlled to wind up the wire rope 201. The winding force of the winch 2 is transmitted through the wire rope... The rope 201 transmits force through the fixed pulleys 103 of the high support 101 and 103 of the low support 102, and finally acts on the movable pulley 301 at the end of the ship bridge 3. This upward pulling force overcomes the weight of the ship bridge 3 and its load, pulling the movable pulley 301 upward, thereby driving the free end of the bridge to move upward, causing the entire bridge to rotate around the hinge pin, thus realizing the lifting action. The use of the movable pulley 301 changes the direction of the force and distributes the weight of the ship bridge 3 to both ends of the wire rope 201, which saves effort and allows the use of a smaller winch 2 or lifting a heavier load, while making the force on the wire rope 201 more even and stable.

[0077] like Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 7 and Figure 10 As shown, in a preferred embodiment, based on the above method, the pretreatment component and the auxiliary lubrication component have the same structure, both including a support plate 7 fixedly connected to the low bracket 102, a movable tube 701 rotatably connected to the support plate 7, a rotating rod 702 symmetrically rotatably arranged on both sides of the movable tube 701, a moving tube 703 axially slidingly arranged on the outside of the rotating rod 702, an elastic telescopic rod 704 fixedly connected to the end of the moving tube 703, and an arc-shaped pressure plate 705 connected to the end of the elastic telescopic rod 704 away from the moving tube 703.

[0078] A reciprocating spiral groove 7021 is provided on the outer side of the rotating rod 702, and a fixing block 7031 that cooperates with the reciprocating spiral groove 7021 is fixed inside the moving tube 703;

[0079] A movable bevel gear 7022 is fixed at one end of the rotating rod 702 located outside the movable tube 701, and a fixed bevel gear 706 that meshes with the movable bevel gear 7022 is provided on the support plate 7.

[0080] Furthermore, a support plate 8 is fixed on the low support 102, and a drive rod 801 is rotatably arranged between the support plate 8 and the support plate 7. A drive gear 8011 is fixed on the drive rod 801, and a movable gear 7011 that meshes with the drive gear 8011 is arranged on the movable tube 701. A drive motor 802 for driving the drive rod 801 to rotate is fixed on the support plate 8. A housing can be provided to protect the gear meshing point.

[0081] Specifically, when the lubrication system needs to be operated, the drive motor 802 starts, and the output shaft of the drive motor 802 drives the drive rod 801 connected to it to rotate. The drive gear 8011 on the drive rod 801 rotates accordingly and meshes with the movable gear 7011 on the pretreatment component and the auxiliary lubrication component, which is sleeved on the movable tube 701. This transmits power to the movable tube 701, causing it to rotate around its own axis. The rotation of the movable tube 701 drives the rotating rod 702, which is symmetrically installed on both sides of it, as well as the movable tube 703, the elastic telescopic rod 704, and the arc-shaped pressure plate 705 fixed at the end of the rotating rod 702, to make a circular revolution around the wire rope 201. While the rotating rod 702 revolves with the movable tube 701, the movable bevel gear 7022 at its end meshes with the fixed bevel gear 706, forcing the rotating rod 702 to generate a circular motion around its own axis while revolving. The rotation of the axis and the rotation of the rotating rod 702, through the cooperation of the reciprocating spiral groove 7021 on its outer surface and the fixed block 7031 inside the moving tube 703, converts the rotational motion into the linear reciprocating motion of the moving tube 703 along the axis of the rotating rod 702. This motion is transmitted to the arc-shaped pressure plate 705 through the elastic telescopic rod 704. While revolving around the wire rope 201, the arc-shaped pressure plate 705 also performs high-frequency reciprocating motion along the axial direction of the wire rope 201. This causes the two arc-shaped pressure plates 705 to alternately wrap and rub the wire rope 201 from the circumferential direction. The elastic telescopic rod 704 provides the necessary radial buffer to ensure that the pressure plate can always adapt to the diameter change of the wire rope 201 and maintain appropriate contact pressure. The pretreatment component and the auxiliary lubrication component have the same structure, but their functions differ depending on their positions in the process. The force exerted by the auxiliary lubrication component on the wire rope 201 is less than that of the pretreatment component.

[0082] When used as a pretreatment component: This composite mechanical action mainly acts on the unlubricated wire rope 201, which may contain old grease and dirt. Its powerful three-dimensional kneading force can effectively break, peel off and squeeze out the old grease, solidified dirt and moisture on the surface and shallow layer of the wire rope 201, creating a clean and activated surface for subsequent deep lubrication.

[0083] When used as an auxiliary lubrication component: This composite mechanical action mainly acts on the wire rope 201, which has been deeply lubricated and has a large amount of new grease on its surface. Its function is to further knead the excess grease on the surface into the gaps between the strands of the wire rope 201, assist in completing the deep penetration, and initially spread and homogenize the surface grease, in preparation for the subsequent quantitative forming process.

[0084] like Figure 5 , Figure 6 , Figure 7 , Figure 9 , Figure 10 and Figure 11 As shown, in a preferred embodiment, based on the above method, a rotating shaft 9 is rotatably arranged inside the moving tube 703, a secondary bevel gear 901 is arranged on the rotating shaft 9, an eccentric shaft 902 is also arranged on the rotating shaft 9, a movable block 903 is sleeved on the eccentric shaft 902, a slide rod 904 is movably arranged on the movable block 903, and one end of the slide rod 904 away from the movable block 903 passes through the moving tube 703 and is connected to the arc-shaped pressure plate 705;

[0085] A rotating rod 10 is slidably provided in the keyway of the rotating rod 702. The end of the rotating rod 10 is provided with a main bevel gear 1001 that meshes with the secondary bevel gear 901. An L-shaped connecting plate 11 is movably provided between the rotating rod 10 and the rotating shaft 9.

[0086] Specifically, when the rotating rod 702 rotates, its internal keyway drives the rotating rod 10 to rotate synchronously. The rotational motion of the rotating rod 10 is transmitted to the secondary bevel gear 901 through the main bevel gear 1001 at its end, thereby driving the rotating shaft 9 to rotate inside the moving tube 703. The rotating rotating shaft 9 drives the eccentric shaft 902 on it to perform circular motion. Since the eccentric shaft 902 has an eccentricity relative to the axis of the rotating shaft 9, its circular motion produces a displacement change in the radial direction. This displacement change is transmitted to the sliding rod 904 hinged to it through the movable block 903 sleeved on the eccentric shaft 902. The other end of the sliding rod 904 is fixedly connected to the arc-shaped pressure plate 705. When the eccentric shaft 902 rotates at high speed with the rotating shaft 9, the sliding rod 904, under the constraint of the guide hole, converts the eccentric circular motion into a high-frequency reciprocating linear vibration along the direction perpendicular to the axis of the wire rope 201, and directly transmits this vibration to the guide hole. The arc-shaped pressure plate 705, in addition to the original movement around the wire rope 201, adds high-frequency radial vibration. This vibration can effectively loosen stubborn old grease, crystalline salts, and micro-abrasive particles embedded deep in the gaps between the strands of the wire rope 201, making them easier to peel off under subsequent kneading and squeezing. At the same time, in the auxiliary lubrication stage, the high-frequency vibration can significantly reduce the viscous resistance of the grease, just like vibration compaction, forcing the grease to penetrate into every micro-gap of the wire rope 201 faster and deeper, greatly improving the depth and efficiency of pretreatment and auxiliary lubrication. Moreover, the high-frequency radial vibration function fully utilizes the existing rotational power of the rotating rod 702, without the need for additional vibration sources such as motors and cylinders. This not only simplifies the system and reduces costs and potential failure points, but also ensures that the vibration frequency is strictly synchronized with the kneading and squeezing movement, resulting in excellent motion coordination.

[0087] like Figure 7 and Figure 8 As shown, in a preferred embodiment, based on the above method, the deep lubrication component further includes a sleeve 12 that is fixedly connected to the movable tube 701 of the auxiliary lubrication component via a connecting plate 7012. The sleeve 12 is sleeved on the outside of the wire rope 201. A spiral guide groove 121 is provided on the inner wall of the sleeve 12. The top of the sleeve 12 is connected to a feeding seat 122 via a rotary joint. The feeding seat 122 is fixedly connected to the low support 102 via a connecting plate.

[0088] The sleeve 12 is fixedly connected to the rotating part of the rotary joint and rotates accordingly. The loading seat 122 is provided with an oil inlet channel. The rotary joint is provided with an axial oil passage and a radial oil hole that communicate with the oil inlet channel. The radial oil hole communicates with the cavity between the sleeve 12 and the wire rope 201.

[0089] The oil inlet channel of the feeding seat 122 is connected to an independent new grease supply pipeline 123, which is connected to the oil supply equipment.

[0090] Specifically, when the drive motor 802 of the auxiliary lubrication component starts, it drives its movable tube 701 to rotate. This rotational motion is transmitted to the sleeve 12 of the deep lubrication component, which is fixedly connected to it, through the connecting plate 7012, so that the sleeve 12 obtains a continuous and stable rotational power. An external oil supply device, such as an electric lubrication pump, continuously pumps a fixed amount of clean, fresh grease to the feed seat 122 through an independent new grease supply pipeline 123. The grease enters the stationary interface of the rotary joint through the oil inlet channel inside the feed seat 122. The grease flows from the stationary part of the rotary joint into the rotating part through its internal axial oil passage and flows out from the radial oil hole of the rotating part. The grease flowing out from the radial oil hole is injected into the inner cavity of the rotating sleeve 12, filling the annular space between the sleeve 12 and the wire rope 201. The injected grease immediately enters the spiral guide groove 121 area on the inner wall of the sleeve 12. When the sleeve 12 rotates at high speed, for viscous grease... The wall of the spiral guide groove 121 is like the rotor of a screw pump, while the surface of the wire rope 201 can be regarded as the stator. The rotating spiral groove generates a strong axial pumping force on the grease adhering to it, which moves in the spiral direction. This forces the grease to move axially along the wire rope 201. Since the wire rope 201 is composed of multiple spirally wound steel wires, the grease is forced into the tiny gaps between each strand and wire of the wire rope 201 under the strong axial pumping pressure. This achieves deep penetration and filling from the surface to the core of the wire rope 201. As the wire rope 201 retracts itself and the grease flows axially under the pumping of the spiral groove, fresh grease is continuously and evenly coated and pressed into the surface and interior of the wire rope 201. This process is active and forced, and does not rely on the passive squeezing between the wire rope 201 and the pulley. This ensures the depth and thoroughness of lubrication and greatly delays the corrosion and wear of the wire rope 201 from the inside.

[0091] like Figure 3 , Figure 5 , Figure 7 and Figure 12 As shown, in a preferred embodiment, based on the above method, the quantitative forming component further includes a conical hopper 13 fixedly connected to the movable tube 701 of the auxiliary lubrication component via a connecting rod 7013. The inner wall of the conical hopper 13 is provided with an asymmetrical spiral groove. The low support 102 is connected to a receiving shell 14 via a support rod. A material passage is formed between the inner wall of the receiving shell 14 and the inner wall of the conical hopper 13. The bottom of the receiving shell 14 is provided with an oil return port.

[0092] Furthermore, it also includes an oil and grease recycling system, which includes:

[0093] The inlet of the recovery filter 151 is connected to the oil return port through the first recovery pipeline, and a pump body is installed on the first recovery pipeline for pumping grease.

[0094] The inlet of the recovery pump 15 is connected to the outlet of the recovery filter 151 through the second recovery pipeline, and the recovery pump 15 is fixed on the support plate 7 of the auxiliary lubrication assembly.

[0095] The outlet of the recovery pump 15 is connected to a recovery nozzle that points to the wire rope 201 in the auxiliary lubrication component area via a third recovery pipeline, which is used to spray the filtered recovery grease onto the surface of the wire rope 201 for lubrication.

[0096] Specifically, the wire rope 201, after undergoing pre-lubrication and auxiliary lubrication treatment, has a large amount of uniform grease adhering to its surface, although the thickness varies. It then enters the conical hopper 13, which rotates at high speed driven by the movable tube 701, generating a strong centrifugal force. The asymmetric spiral grooves on the inner wall of the conical hopper 13 generate an axial pumping force from the larger opening to the smaller opening during rotation, balancing the centrifugal force and ensuring a stable grease supply to the smaller opening. The wire rope 201 exits from the smaller diameter end of the conical hopper 13. The gap between this smaller diameter and the diameter of the wire rope 201 is fixed. When the wire rope 201, coated with a large amount of grease, passes through this gap, the excess grease is precisely scraped off, ultimately forming a precisely thick, uniform, and smooth grease film on the surface of the wire rope 201. The scraped, relatively clean excess grease, under the action of centrifugal force and the axial force of the spiral grooves, is thrown towards the larger diameter end of the conical hopper 13 and then into the fixed receiving shell 14. Excess grease from 14 collects along its inner wall to the bottom and flows out from the return port. The gear pump in the first recovery pipeline pumps the grease to the recovery filter 151. This grease may contain a small amount of metal particles or environmental impurities worn off from the wire rope 201. In the recovery filter 151, the grease is forced through the filter screen or filter element, and the solid impurities are filtered out to obtain preliminarily purified grease. The purified grease enters the recovery pump 15, which pressurizes it and delivers it to the recovery nozzle through the third recovery pipeline. The recovery nozzle sprays the purified grease evenly onto the surface of the wire rope 201 that is about to enter the auxiliary lubrication component in the form of spray or drip. This part of the recovered grease serves as a "pre-lubricant" or "supplementary lubricant" and participates in the front end of the lubrication process for reuse. It should be noted that the recovery nozzle and the fresh water flushing nozzle 6 can be arranged on the annular seat according to actual needs, so that the nozzle or nozzle is arranged around the circumference of the wire rope 201.

[0097] like Figure 5 , Figure 7 , Figure 9 and Figure 10As shown, in a preferred embodiment, based on the above method, a negative pressure adsorption system is further provided on the support plate 7 of the pretreatment component. The negative pressure adsorption system includes a dust suction port 161, a conveying pipe 162, a primary separator 163, a secondary filter 164, and a vacuum generator 16 for providing negative pressure to the system. The dust suction port 161 is connected to the inlet of the primary separator 163 through the conveying pipe 162. The gas outlet of the primary separator 163 is connected to the inlet of the secondary filter 164, and the outlet of the secondary filter 164 is connected to the vacuum generator 16. A sealed collection container 165 for collecting the separated grease and solid waste is provided at the bottom of the primary separator 163.

[0098] Specifically, when the pretreatment component starts working, the negative pressure adsorption system starts simultaneously, and the vacuum generator 16 begins operation, generating negative pressure throughout the system pipeline. Under the combined action of high-speed rotation and vibration, the arc-shaped pressure plate 705 of the pretreatment component strongly rubs and scrapes the steel wire rope 201, peeling off, crushing, and lifting off contaminants such as old grease, oxides, mud, and salt crystals adhering to its surface, forming a mixture of grease, moisture, and solid particles. At the moment these contaminants are lifted and diffused, the suction port 161 adjacent to its working area is quickly captured under the action of negative pressure. The grease containing contaminants is drawn to the primary separator 163 through the conveying pipe 162, causing most of the larger and coarser contaminants to separate from the airflow under the action of inertia and gravity, settling and falling into the sealed collection container 165 at the bottom. In the process, the airflow after primary separation still contains a large amount of fine dust, oil mist, and water vapor. It then enters the secondary filter 164, which typically uses high-efficiency filter materials that can effectively intercept particles with a diameter in the micrometer or even submicrometer range. After this stage of filtration, solid and liquid contaminants in the airflow are completely removed, making it relatively clean. The purified clean gas enters the inlet of the vacuum generator 16 through a pipeline, and is then pressurized and discharged from the system. The system can be stopped periodically, and the sealed collection container 165 can be opened to dispose of the collected solid / semi-solid mixtures such as grease and silt as hazardous waste or industrial waste in a unified and safe manner. This avoids the pollution of the working environment, especially the subsequent lubrication components, caused by dust and oil mist generated during the cleaning process, and provides a clean working substrate for subsequent deep lubrication.

[0099] This invention also discloses a method for using an online lubrication and lifting device for a sand transfer hopper, comprising the following steps:

[0100] S1: Sand hopper sand removal operation:

[0101] The winch 2 releases the wire rope 201. The wire rope 201 changes direction via the fixed pulleys 103 of the high support 101 and the low support 102, driving the ship bridge 3 and the movable pulleys 301 at its ends to rotate and lower around the hinge point with the ship deck 1. At this time, the pump pipe assembly 5 installed on the ship bridge 3 moves down to a predetermined depth below the water surface, and the pump is started. The pump pipe assembly 5 draws seawater from the seabed and injects it into the sand bucket body 4 on the ship deck 1, where it mixes with the sand loaded in the sand bucket body 4 to form a sand-water mixture, which is ready to be transported through the pipeline.

[0102] S2: Cable tray retracted:

[0103] After the sand extraction operation is completed, the ship's bridge 3 and the pump pipe assembly 5 on it need to be retrieved. At this time, the winch 2 is controlled to wind up the wire rope 201. During the process of the wire rope 201 being pulled up and retrieved from underwater, the fresh water flushing nozzle 6 set on the lower side of the online lubrication system is turned on. High-pressure fresh water is used to initially flush the wire rope 201, which is retrieved from underwater and is covered with seawater and silt, to wash away external salt and solid impurities and prevent corrosive substances from directly entering the online lubrication system, causing system pollution and lubrication failure.

[0104] S3: Online Preprocessing

[0105] Start the drive motor 802, and the drive rod 801 drives the drive gear 8011 to mesh with the movable gear 7011 on the pretreatment component and the auxiliary lubrication component. The movable gear 7011 drives the movable tube 701 to rotate.

[0106] After being rinsed, the wire rope 201 first enters the pretreatment assembly, causing the movable tube 701 of the pretreatment assembly to drive the rotating rods 702 on both sides to revolve around the wire rope 201. At the same time, the movable bevel gear 7022 at the end of the rotating rod 702 of the pretreatment assembly meshes with the fixed bevel gear 706, forcing the rotating rod 702 to rotate. The rotation of the rotating rod 702 is converted into the moving tube 703 driving the arc-shaped pressure plate 705 along the axial direction of the wire rope 201 through the moving tube 703 and the engagement of the reciprocating spiral groove 7021 on it with the fixed block 7031. The reciprocating motion rubs the wire rope 201; and the rotation of the rotating rod 702 is transmitted through the internal rotating rod 10, main bevel gear 1001, and secondary bevel gear 901, driving the rotating shaft 9 and eccentric shaft 902 to rotate. The eccentric shaft 902 converts the rotational motion into high-frequency radial vibration of the arc-shaped pressure plate 705 through the movable block 903 and the slide rod 904. The arc-shaped pressure plate 705 simultaneously performs a composite motion of revolving around the rope, rubbing, and vibrating, which powerfully peels off the old grease, salt crystals, and stubborn dirt on the surface and shallow layers of the wire rope 201 and squeezes them to the surface.

[0107] As the released steel wire rope 201 moves to the working area of ​​the negative pressure adsorption system, a negative pressure is generated at the suction port 161, which promptly sucks away the squeezed-out dirt. The dirt is then separated and collected by the primary separator 163 and the secondary filter 164, ensuring that the steel wire rope 201 is exposed to a clean and activated metal surface, creating conditions for subsequent deep lubrication.

[0108] S4: Deep Lubrication

[0109] The pre-treated clean steel wire rope 201 enters the deep lubrication assembly. The sleeve 12 of this assembly is driven to rotate at high speed by the movable tube 701 of the auxiliary lubrication assembly through the connecting plate 7012. Fresh grease enters the inner cavity of the rotating sleeve 12 through the feeding seat 122 and the rotary joint. The spiral guide groove 121 on the inner wall of the sleeve 12 rotates at high speed with the sleeve 12, generating a forced pumping force along the axial direction of the steel wire rope 201 to the viscous grease that fills the gap between the sleeve and the steel wire rope 201. Under the action of this pumping force, the grease is forced into the gap of the strands inside the steel wire rope 201, achieving deep filling from the inside out, overcoming the shortcomings of the traditional method that only relies on external application and passive extrusion.

[0110] S5: Auxiliary lubrication and preliminary molding:

[0111] The steel wire rope 201, after deep penetration, enters the auxiliary lubrication component. The structure of this component is exactly the same as that of the pretreatment component, but the working purpose is different. Here, the combined motion of alternating kneading and high-frequency vibration mainly kneads the grease attached to the surface of the steel wire rope 201 into the gaps between the strands, and initially flattens and homogenizes the unevenly attached grease after deep lubrication, so that the grease layer on the surface of the steel wire rope 201 reaches a uniform initial state.

[0112] S6: Quantitative molding and grease recovery:

[0113] The wire rope 201 then enters the quantitative forming component. The high-speed rotating conical bucket 13 generates a strong centrifugal force, which forms a layer of annular grease film with an extremely uniform thickness on its inner wall. When the wire rope 201 passes through the small opening of the conical bucket 13, the fixed gap between the small opening and the wire rope 201 precisely scrapes off the excess grease on the surface. The scraped excess grease is thrown to the inner wall of the fixed receiving shell 14 under the action of centrifugal force and flows to the bottom oil return port.

[0114] S7: Grease recycling and reuse:

[0115] The scraped excess grease is pumped to the recovery filter 151 through the first recovery pipeline under the action of the pump body to filter out the very few impurities mixed in. The filtered clean recovery grease is pumped by the recovery pump 15 to the recovery nozzle in the auxiliary lubrication component area and evenly sprayed on the surface of the wire rope 201 that has completed the pretreatment and is about to enter the auxiliary lubrication component to fill the gaps.

[0116] S8: System Pause and Preparation:

[0117] When the wire rope 201 is fully retracted and the ship bridge 3 is reset, the online lubrication system can automatically stop working and enter standby mode. When the wire rope 201 is released again and the ship bridge 3 is lowered for sand removal operations, the online lubrication system will not work.

[0118] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0119] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An online lubrication and lifting device for a sand transfer bucket, comprising a winch (2) fixed on the deck (1) of a ship, characterized in that, Also includes: A steel wire rope (201) is wound on a winch (2) and connected to a ship bridge (3). The ship bridge (3) is rotatably connected to the ship deck (1) via a pin. A pump pipe assembly (5) is provided on the ship bridge (3) to provide seawater to the sand bucket body (4) on the ship deck (1). And an online lubrication system, which is laid along the path of the wire rope (201), and a fresh water flushing nozzle (6) for flushing the wire rope (201) is also provided on the lower side of the online lubrication system. The online lubrication system includes a pretreatment component for cleaning the wire rope (201), a deep lubrication component for forcibly penetrating lubricating grease into the gaps between the strands inside the wire rope (201), an auxiliary lubrication component for assisting the lubricating grease to penetrate into the gaps between the strands inside the wire rope (201), and a quantitative forming component for scraping off excess grease from the outside of the wire rope (201). The ship deck (1) is provided with a high support (101) and a low support (102). Both the high support (101) and the low support (102) are provided with fixed pulleys (103). The ship bridge (3) is provided with a movable pulley (301) at the end away from the pin. The end of the wire rope (201) away from the winch (2) passes through the fixed pulleys (103) of the high support (101) and the low support (102) in sequence, and the movable pulley (301) at the end of the ship bridge (3) and is fixedly connected to the high support (101). The pretreatment component and the auxiliary lubrication component have the same structure, both including a support plate (7) fixedly connected to the low bracket (102), a movable tube (701) rotatably connected to the support plate (7), a rotating rod (702) symmetrically rotatably arranged on both sides of the movable tube (701), a moving tube (703) axially slidingly arranged on the outside of the rotating rod (702), an elastic telescopic rod (704) fixedly connected to the end of the moving tube (703), and an arc-shaped pressure plate (705) connected to the end of the elastic telescopic rod (704) away from the moving tube (703). The rotating rod (702) has a reciprocating spiral groove (7021) on its outer side, and the moving tube (703) has a fixing block (7031) that cooperates with the reciprocating spiral groove (7021) fixed inside. The rotating rod (702) is fixed with a movable bevel gear (7022) at one end outside the movable tube (701), and a fixed bevel gear (706) that meshes with the movable bevel gear (7022) is provided on the support plate (7). A support plate (8) is fixedly mounted on the low support (102). A drive rod (801) is rotatably mounted between the support plate (8) and the support plate (7). A drive gear (8011) is fixedly mounted on the drive rod (801). A movable gear (7011) meshing with the drive gear (8011) is mounted on the movable tube (701). A drive motor (802) for driving the drive rod (801) to rotate is fixedly mounted on the support plate (8). A rotating shaft (9) is rotatably disposed inside the moving tube (703). A secondary bevel gear (901) is disposed on the rotating shaft (9). An eccentric shaft (902) is also disposed on the rotating shaft (9). A movable block (903) is sleeved on the eccentric shaft (902). A slide rod (904) is movably disposed on the movable block (903). One end of the slide rod (904) away from the movable block (903) passes through the moving tube (703) and is connected to the arc-shaped pressure plate (705). The rotating rod (702) has a keyway in which a rotating rod (10) is slidably provided. The end of the rotating rod (10) is provided with a main bevel gear (1001) that meshes with the secondary bevel gear (901). An L-shaped connecting plate (11) is movably provided between the rotating rod (10) and the rotating shaft (9). The deep lubrication assembly includes a sleeve (12) which is fixedly connected to the movable tube (701) of the auxiliary lubrication assembly via a connecting plate (7012). The sleeve (12) is sleeved on the outside of the wire rope (201). The inner wall of the sleeve (12) is provided with a spiral guide groove (121). The top of the sleeve (12) is connected to a loading seat (122) via a rotary joint. The loading seat (122) is fixedly connected to the low support (102) via a connecting plate. The oil inlet channel of the feeding seat (122) is connected to an independent new grease supply pipeline (123), which is connected to the oil supply equipment; The quantitative forming component includes a conical hopper (13) fixedly connected to the movable tube (701) of the auxiliary lubrication component via a connecting rod (7013). The inner wall of the conical hopper (13) is provided with an asymmetrical spiral groove. The low support (102) is connected to a receiving shell (14) via a support rod. A material passage is formed between the inner wall of the receiving shell (14) and the inner wall of the conical hopper (13). The bottom of the receiving shell (14) is provided with an oil return port.

2. The online lubrication and lifting device for a sand and mud transfer hopper according to claim 1, characterized in that, It also includes an oil recycling system, which comprises: The inlet of the recovery filter (151) is connected to the oil return port through a first recovery pipeline, and a pump body is provided on the first recovery pipeline for pumping grease. The inlet of the recovery pump (15) is connected to the outlet of the recovery filter (151) through the second recovery pipeline. The recovery pump (15) is fixed on the support plate (7) of the auxiliary lubrication assembly. The outlet of the recovery pump (15) is connected to a recovery nozzle pointing to the wire rope (201) in the auxiliary lubrication component area via a third recovery pipeline, which is used to spray the filtered recovery grease onto the surface of the wire rope (201) for lubrication.

3. The online lubrication and lifting device for a sand transfer hopper according to claim 2, characterized in that, The pretreatment component is provided with a negative pressure adsorption system on the support plate (7). The negative pressure adsorption system includes a dust suction port (161), a conveying pipe (162), a primary separator (163), a secondary filter (164), and a vacuum generator (16) that provides negative pressure to the system. The dust suction port (161) is connected to the inlet of the primary separator (163) through the conveying pipe (162). The gas outlet of the primary separator (163) is connected to the inlet of the secondary filter (164). The outlet of the secondary filter (164) is connected to the vacuum generator (16). The bottom of the primary separator (163) is provided with a sealed collection container (165) for collecting the separated grease and solid waste.

4. A method of using the online lubrication and lifting device for a sand and mud transfer hopper according to claim 3, characterized in that, Includes the following steps: S1: Sand hopper sand removal operation: The control winch (2) releases the wire rope (201). The wire rope (201) changes direction through the fixed pulleys (103) of the high support (101) and the low support (102), causing the ship bridge (3) and its end pulleys (301) to rotate and lower around the hinge point with the ship deck (1). At this time, the pump pipe assembly (5) installed on the ship bridge (3) moves down to a predetermined depth below the water surface, and the pump is started. The pump pipe assembly (5) draws seawater from the seabed and injects it into the sand bucket body (4) on the ship deck (1). It mixes with the sand loaded in the sand bucket body (4) to form a sand-water mixture, which is ready to be transported through the pipeline. S2: Cable tray retracted: After the sand extraction operation is completed, the ship bridge (3) and the pump pipe assembly (5) on it need to be retrieved. At this time, the winch (2) is controlled to wind up the wire rope (201). During the process of the wire rope (201) being pulled up and retrieved from underwater, the fresh water flushing nozzle (6) set on the lower side of the online lubrication system is turned on. High pressure fresh water is used to initially flush the wire rope (201) that is retrieved from underwater and is covered with seawater and mud, to wash away external dirt and prevent corrosive substances from directly entering the online lubrication system, causing system pollution and lubrication failure. S3: Online Preprocessing Start the drive motor (802), the drive rod (801) drives the drive gear (8011) to mesh with the movable gear (7011) on the pretreatment component and the auxiliary lubrication component, and the movable gear (7011) drives the movable tube (701) to rotate; After being rinsed, the wire rope (201) first enters the pretreatment assembly, causing the movable tube (701) of the pretreatment assembly to drive the rotating rods (702) on both sides to revolve around the wire rope (201). At the same time, the movable bevel gear (7022) at the end of the rotating rod (702) of the pretreatment assembly meshes with the fixed bevel gear (706), forcing the rotating rod (702) to rotate. The rotation of the rotating rod (702) is transformed into the movement of the moving tube (703) by the moving tube (703) through the reciprocating spiral groove (7021) on it and the fixed block (7031) inside the moving tube (703). This movement is then transformed into the moving tube (703) driving the arc-shaped pressure plate (705) along the wire rope. The rope (201) moves axially back and forth to rub the wire rope (201); and the rotation of the rotating rod (702) is driven by the internal rotating rod (10), main bevel gear (1001), and secondary bevel gear (901) to drive the rotating shaft (9) and eccentric shaft (902) to rotate. The eccentric shaft (902) converts the rotational motion into the high-frequency radial vibration of the arc-shaped pressure plate (705) through the movable block (903) and the slide rod (904). The arc-shaped pressure plate (705) simultaneously performs a composite motion of revolving around the rope, rubbing, and vibrating, peeling off the dirt on the surface and shallow layer of the wire rope (201) and squeezing it to the surface. As the released steel wire rope (201) moves to the working area of ​​the negative pressure adsorption system, a negative pressure is generated at the suction port (161) to promptly suck away the squeezed-out dirt, which is then separated and collected by the primary separator (163) and the secondary filter (164), ensuring that the steel wire rope (201) exposes a clean and activated metal surface. S4: Deep Lubrication The pre-treated clean steel wire rope (201) enters the deep lubrication assembly. The sleeve (12) of the deep lubrication assembly is driven to rotate by the movable tube (701) of the auxiliary lubrication assembly through the connecting plate (7012). Fresh grease enters the inner cavity of the rotating sleeve (12) through the feeding seat (122) and the rotary joint. The spiral guide groove (121) on the inner wall of the sleeve (12) rotates with the sleeve (12), generating a forced pumping force along the axial direction of the steel wire rope (201) on the viscous grease filling the gap between the sleeve (12) and the steel wire rope (201). Under the action of this pumping force, the grease is forced into the gap of the strands inside the steel wire rope (201), realizing deep filling from the inside out, overcoming the shortcomings of the traditional method of relying only on external application and passive squeezing. S5: Auxiliary lubrication and preliminary molding: The steel wire rope (201) that has completed deep penetration enters the auxiliary lubrication assembly. The structure of the auxiliary lubrication assembly is exactly the same as that of the pretreatment assembly, but the purpose of the work is different. Here, the auxiliary lubrication assembly uses alternating kneading and high-frequency vibration to knead the grease attached to the surface of the steel wire rope (201) into the gaps between the strands. This initially flattens and homogenizes the unevenly attached grease after deep lubrication, so that the grease layer on the surface of the steel wire rope (201) reaches a uniform initial state. S6: Quantitative molding and grease recovery: The wire rope (201) then enters the quantitative forming component. The rotating conical bucket (13) generates centrifugal force, which forms a uniform annular grease film on its inner wall. When the wire rope (201) passes through the small opening of the conical bucket (13), the fixed gap between the small opening and the wire rope (201) precisely scrapes off the excess grease on the surface. The scraped excess grease is thrown to the inner wall of the fixed receiving shell (14) under the action of centrifugal force and flows to the bottom oil return port. S7: Grease recycling and reuse: The scraped excess grease is pumped to the recovery filter (151) through the first recovery pipeline under the action of the pump body to filter out the impurities mixed in. The clean recovery grease after filtration is pumped by the recovery pump (15) to the recovery nozzle in the auxiliary lubrication component area and evenly sprayed on the surface of the wire rope (201) that has completed the pretreatment and is about to enter the auxiliary lubrication component, so as to fill the gaps. S8: System Pause and Preparation: When the wire rope (201) is fully retracted and the ship bridge (3) is reset, the online lubrication system automatically stops working and enters standby mode. When the wire rope (201) is released again and the ship bridge (3) is lowered for sand removal operations, the online lubrication system will not work.

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