134results about "Anchor handling/lashing" patented technology

The invention discloses a separated type double-head torpedo anchor device and an operation method thereof. The device comprises an anchor rod, a first anchor head movably arranged in an inner cavity of the anchor rod, a second anchor head located below the first anchor head and an anchor chain connected between the first anchor head and the second anchor head. Wherein the second anchor head is detachably installed at the bottom of the anchor rod through a connecting limiting assembly and can be separated from the anchor rod under the reaction force of a seabed soil layer and the external upward pulling force effect after the torpedo anchor is inserted into the seabed soil layer. After the torpedo anchor penetrates into a soil body, the mooring anchor chain is vertically pulled to enable the anchor rod to be separated from the second anchor head, a gap generated in the middle can be covered with silt, and the vertical pulling resistance of the torpedo anchor is greatly improved; through the cooperation effect of the water flowing channel and the tail rotor assembly, water flow drives the tail rotor assembly to rotate in the falling process of the torpedo anchor, the torpedo anchor can be controlled to keep the vertical falling posture, the angle of the torpedo anchor penetrating into the seabed soil layer is close to be vertical, and the horizontal tensile moment of the torpedo anchor can be further increased.

The invention discloses an anchoring speed limiting device for a ship anchor gear, and relates to the technical field of anchoring equipment, the anchoring speed limiting device comprises a bottom layer mounting plate, a first supporting plate and a second supporting plate are fixedly mounted on the bottom layer mounting plate, an energy storage assembly I is mounted on the first supporting plate, and an energy storage assembly II is mounted on the second supporting plate; a matching chuck is arranged between the first supporting plate and the second supporting plate, a groove is formed in the matching chuck, the anchor chain is matched with the groove to drive the matching chuck to rotate, and the matching chuck drives the first energy storage assembly and the second energy storage assembly to store energy. According to the technical scheme, during anchoring, the chain drives the matched chuck to rotate, the matched chuck rotates to drive the two energy storage assemblies to store energy, the rotating speed of the matched chuck is controlled through the energy storage assemblies, and the situation that an anchor chain sinks too fast and is out of control, and damage is caused is prevented.

The invention belongs to the field of cablelifter, and particularly relates to a marine cablelifter which comprises a driving gear and a transmission gear which are meshed with each other, the diameter of the driving gear is smaller than that of the transmission gear, a gear motor used for driving the driving gear to rotate is arranged at one end of the driving gear, and a transmission shaft is fixedly connected to the middle of the transmission gear. A winding disc is fixedly connected to the outer side of one end of the transmission shaft, the middle of the winding disc is used for fixing a ship anchor chain, a plurality of sets of through holes are formed in the two side walls of the winding disc, and a plurality of supporting strips capable of horizontally moving are arranged on one side of the winding disc; through the arrangement, the ship anchor chain is always kept in a neat and non-tangled winding state, the phenomenon that the ship anchor chain wound later wraps the outer side of the ship anchor chain wound front is avoided, the ship anchor chain is uniform in stress and free of excessive extrusion, the shape and the coating of the ship anchor chain are guaranteed, potential safety hazards are effectively reduced, and meanwhile the service life is prolonged.

This invention discloses an intelligent dynamic anchor chain control method and system, belonging to the field of anchor chain control technology. The method includes: constructing a matrix-like grid and simulating its static, undisturbed state to obtain a standard three-dimensional control volume diagram; mapping this diagram to a standard two-dimensional control surface diagram and dividing the control surface region; generating a dynamic two-dimensional control surface sub-diagram based on the movement position of the self-floating support under wave impact, overlapping it with the standard diagram to mark the areas where dynamic surface points are located, and generating a control sample set; evaluating the overall dynamic tendency to determine the main impact direction; comparing the anchor chain dynamics with the standard curve; and adjusting the position of the self-floating support through a deployment and retrieval mechanism. The system includes a deployment and retrieval mechanism, three-dimensional simulation, two-dimensional simulation, and an anchor chain dynamic control module, realizing intelligent dynamic control of the anchor chain. This invention can accurately respond to wave impacts, improve the stability and impact resistance of the anchoring system, and is suitable for offshore anchoring scenarios such as wave energy power generation.

The present invention relates to an arrangement for retrieving broken moorings comprising: at least three shackles; at least two slings; at least one mooring; at least one hook; at least one ROV needle rope; and a treble hook. The upper end of the mooring is connected to a working rope with a swivel link, and the lower end of the mooring is connected to the treble hook. In addition, the invention also describes a method for retrieving broken moorings, using said arrangement for retrieving moorings, comprising the following steps: positioning a treble hook close to a mooring to be retrieved; passing a sling around the mooring; connecting a sling to the hook; applying traction; and accommodating the mooring. In this way, the invention combines the flexibility and adaptability necessary to operate in different suspension conditions on the seabed, ensuring the efficient retrieval of the broken moorings, both in environments with high-suspension seabeds and in low-suspension seabeds.

A magnet activatable release apparatus (1), an assembly comprising the apparatus, and a method of using the assembly, wherein the apparatus comprises a locking device (20) comprising at least one latch element (22) for engaging the releasable coupling device (50) when connected to the apparatus (1), the locking device (20) being movable by means of a trigger element (30) between a locking first position, and a releasing second position wherein the releasable locking device is released from the apparatus.

The utility model discloses a rust-proof anchor windlass which comprises an engine, a speed reducer and an anchor chain wheel. The engine and the speed reducer are connected through the coupler, and the speed reducer and the cable lifter are connected through the gearbox. A protective shell is arranged on the periphery of the cable lifter and composed of side plates, a top cover and a bottom plate. An air inlet channel extends from the right side plate, and a fan is mounted in the air inlet channel; vent holes are formed in the tops of the side plates; the top cover is hinged to the side plates through hinges, and baffles extend downwards from the periphery of the top cover. A hole is formed in the rear side plate, and an anchor chain is arranged in the hole and connected with an anchor chain wheel. Through the synergistic effect of the engine, the speed reducer, the gear box and the cable lifter, dragging, anchor weighing and anchor dropping operations of an anchor chain are achieved; meanwhile, through the design of the protective shell, the cable lifter and the anchor chain are effectively prevented from being corroded by the external environment, particularly rusting is prevented, the service life of the cablelifter is prolonged, and the reliability of the cablelifter is improved.

An anchoring device for anchoring a floating object to an anchor structure, including a first attachment for being constrained to the floating object; a second attachment for being constrained to the anchor structure; a damping member for damping the relative motion between the attachments for securing the first attachment to the second attachment and including a sliding chamber, a piston for sliding in the sliding chamber according to a relative motion between the attachments and a damper for damping the sliding of the piston in the sliding chamber; and a control unit including a measurement sensor for measuring the sliding of the piston; and a control board for varying the damping of the damper according to the sliding of the piston detected by the measurement sensor.

The application provides an unmanned ship emergency anchor throwing system and relates to the technical field of unmanned ships. The unmanned ship emergency anchor throwing system comprises a ship body, a ship anchor mechanism, an unhooking mechanism and an anchor throwing control assembly. The unhooking mechanism is hung on the ship anchor mechanism, and the unhooking mechanism can throw the anchor through two modes of an unhooking push rod and a pull rope. The anchor throwing control assembly comprises an unmanned ship main control box, a power supply module, an unhooking mechanism control device and a detection sensor. When the unhooking push rod of the unmanned ship emergency anchor throwing system fails or the anchor throwing force is insufficient, resulting in anchor throwing failure, the system automatically switches to the pull rope mode to unhook and perform anchor throwing operation, thereby improving the success rate of anchor throwing and the stability of equipment operation. The anchor is thrown by using the unhooking mechanism, the use of a hydraulic or electric anchor device is reduced, and the influence of the weight of the equipment on the weight of the unmanned ship is reduced.

The invention discloses an anchor system laying device and method, a holding power anchor and a gravity anchor can enter water in sequence through a crane and a crane, the anchor system laying device comprises a winch, a ground command, the crane and the crane, the winch is arranged on a deck of a workboat, the winch is provided with a mooring rope, and the mooring rope can be wound on the winch; the ground wire is arranged on a deck of the workboat; the crane is arranged on a deck of the workboat and provided with a first pulley, and the mooring rope bypasses the first pulley to be connected with the gravity anchor. The crane is provided with a second pulley, a traction rope is wound on the second pulley, the traction rope penetrates through a lifting ring of the holding anchor and is connected to the ground wire, and the second pulley can pull the holding anchor through the traction rope; the crane is arranged on a deck of the workboat, provided with a lifting hook and capable of being connected with the gravity anchor through the lifting hook so as to adjust the position of the gravity anchor.

The invention discloses a shifting method and device of a transverse moving anchor, electronic equipment and a storage medium, and relates to the field of hydraulic engineering, an anchor dropping rod winch and an anchor weighing winch are installed on a dredger, the dredger is provided with the transverse moving anchor, and the method comprises the steps that the real-time transverse moving linear speed of the dredger is obtained; the cable laying speed is determined according to the real-time transverse movement linear speed, the splitting width and the length of an anchor rod on an anchor rod winch; the cable collecting torque of the anchor winch is obtained, and the cable collecting speed is determined according to the cable collecting torque, the length of the remaining anchor cable, the real-time transverse movement linear speed and the splitting width; and an anchor dropping rod on an anchor dropping rod winch is controlled to pay off cables according to the cable pay-off speed, and an anchor weighing winch is controlled to take up cables according to the cable take-up speed so as to control displacement of a transverse moving anchor. The cable collecting speed of the anchor weighing winch and the cable releasing speed of the anchor dropping rod cable car can be automatically controlled in real time, the displacement accuracy of the transverse moving anchor is improved, and the safety and stability of the whole construction process are guaranteed.

A boat anchor storage tray includes an attachment member, and at least one mounting channel attached to the attachment member. In another aspect, a tray is slidably engaged with the at least one mounting channel and is configured to move between an open position and a closed position below a boat deck. A further aspect of a movable boat anchor storage tray includes water draining holes. In yet another aspect, a boat apparatus includes a storage tray moveable from an open position to a closed position below a pontoon boat deck, with a lock movably securing the tray in the closed position.

A removable mooring system for an offshore semi-submersible floating structure. The removable buoy has several mooring lines with a buoy chain between the mooring chain and the buoy. The mooring chain and the buoy chain are connected via a three-way mooring connector, the third connection being configured to pull the mooring connector to a mooring point of the structure. In a first configuration, the buoy is detached and supports the mooring chain which is retracted for recovery at shallow depths. In a second configuration, the mooring lines are retracted through the mooring connector, thereby providing a multi-point mooring of the structure with the buoy chain remaining as a catenary between the buoy and the mooring point.

The rapid disposal mechanism comprises a first ship body, second ship bodies are arranged on the two sides of the first ship body, the two second ship bodies are connected with the first ship body through connecting mechanisms, and a first rotating table is arranged at the top end of the first ship body. The emergency ship has the beneficial effects that the emergency ship can be quickly disassembled and assembled by arranging the connecting mechanisms, the whole emergency ship can be disassembled into a plurality of blocks, the plurality of small ship bodies are quickly conveyed to a designated place through land transportation and then assembled into the whole emergency ship, and the disposal efficiency of a dike breach is improved; and meanwhile, the connecting mechanism is simple and convenient to operate through cooperation of an inserting column, a first mounting groove, a first driving shaft, an adjusting lead screw, a limiting sleeve, a first bevel gear, a second bevel gear, a second driving shaft, a third bevel gear and a fourth bevel gear, connection is stable and firm, and the rescue ship can be stabilized by arranging a ship body auxiliary stabilizing assembly.

The invention provides an electric anchor and mooring equipment with a cable tensioning structure and an automatic tensioning system, and relates to the field of electric anchor and mooring equipment. The device comprises an anchor and mooring machine motor. The anchor chain chain wheel is used for winding an anchor chain; the cable winding roller is used for winding the cable; the tensioning assembly is used for tensioning the cable; the adjusting assembly is used for adjusting the tensioning force; the tensioning assembly comprises a lifting box arranged at the front end of the stranded cable roller; the adjusting assembly comprises a fixed magnet arranged on the surface of the lifting lead screw in a sleeving mode. The movable magnet is arranged above the fixed magnet; and the mounting brackets are rotationally mounted at the two ends of the movable magnet. Through the arranged adjusting assembly, repulsive force between the movable magnet and the fixed magnet is used for replacing a traditional spring to serve as a core buffer element, non-contact thrust is achieved, mechanical abrasion is avoided, meanwhile, the initial distance between the movable magnet and the fixed magnet can be manually adjusted according to the actual situation, and different tension adjusting requirements are met.

This invention discloses a torpedo anchor ejection device, comprising: a torpedo anchor; and an ejection assembly detachably connected to the torpedo anchor; wherein the ejection assembly is capable of driving the torpedo anchor to move and detaching the torpedo anchor. The torpedo anchor ejection device of this invention provides a torpedo anchor with high penetration accuracy and depth.

The utility model discloses a fast braking anti-skid device for a marine anchor gear, which belongs to the technical field of marine equipment and comprises a base, a fixing frame is arranged on the base, an electromagnetic chuck is arranged on the base, metal plates are lapped on two sides of the electromagnetic chuck, a connecting rod is arranged on the side surface of each metal plate, a sliding rod is arranged on the side surface of each connecting rod, and the sliding rod is connected with the fixing frame. The cable lifter comprises a base, two supporting frames are arranged on the base, cable lifters are rotationally arranged in the supporting frames, annular frames are arranged on the two sides of each cable lifter, and a plurality of limiting grooves are formed in the annular frames. According to the fast braking anti-skid device for the marine anchor gear, by arranging the electromagnetic chuck, the annular frame, the limiting protrusion, the limiting groove, the metal plate and the metal frame, friction force can be increased, fast braking and releasing can be achieved, the braking precision and stability can be improved only by controlling the electromagnetic chuck, sliding and displacement can be effectively prevented, and the service life of the device is prolonged. And the reliability and the safety of the braking process are ensured.

An embodiment of the present disclosure provides an anchoring apparatus including a windlass unit configured to heave an anchor chain, and a chain compressor including a main body part to which a support roller that supports the anchor chain is rotatably connected, a base part that connects the main body part to a vessel, and a position adjustment unit configured to adjust a position of the main body part on the base part, wherein the windlass unit and the main body part are arranged on the base part.

The present invention is applied in the field of anchor line maintenance and, more particularly, relates to a method for subsea connection of anchor lines under tension, comprising: installing, by means of an ROV (31) of a support AHTS vessel (3), one or more floats (43) on an anchor hook shackle (42) of a fixed-point mooring line (41); providing, by means of a main AHTS vessel (2), a handling line (20) comprising a handling cable (21) attached to the main AHTS vessel (2) and a ballast mooring line (22) connected to the handling cable (21); connecting, by means of the ROV (31), the ballast mooring line (22) to a link of a seabed mooring line (12) of a stationary production unit (UEP) (1) in the vicinity of the anchor hook (13); paying out, by means of the main AHTS vessel (2), the handling line (20) with the ballast mooring line (22) connected to the link of the seabed mooring line (12) in the vicinity of the anchor hook (13); moving the main AHTS vessel (2) toward a fixed anchor point (4), passing over it, until a desired position is reached; connecting, by means of the ROV (31), the anchor hook (13) to the anchor hook shackle (42); and disconnecting, by means of the ROV (31), the ballast mooring line (22) from the link of the seabed mooring line (12). The present invention also relates to other methods for subsea connection of anchor lines under tension.

A tow pin device (20) for securing and guiding a cable (12), such as a chain, wire, or rope, on board a vessel (10), comprising several upright cylinders (22), each equipped with a horizontally orientated locking arm (24). The horizontally orientated locking arm (24) is rotatably mounted to the cylinder (22), wherein the rotation of the locking arm (24) is stepless and the locking arm (24) is lockable in any desired orientation in a horizontal plane. The invention also relates to a tow pin and shark jaw arrangement, comprising a tow pin device.

A manual hydraulic adjustable chain controller for a ship is characterized in that a guide roller is fixed on a chain controller main body through a main shaft, a 150mm heightened base is arranged at the bottom of the chain controller main body, a knife switch is arranged on one side of the guide roller, fixed baffles are arranged on two sides of the knife switch, and the fixed baffles are fixed on the chain controller main body. A vertically-arranged hydraulic cylinder is fixed to the position, below the knife switch, of the chain controller body. An adjusting base plate is arranged between the fixed baffle and the knife switch, and a detachable shaft pin penetrates through the center of the adjusting base plate; anchor cable fixing shafts are fixed to the two sides of the front end of the chain controller body respectively, an anchor cable bypasses the anchor cable fixing shafts, an anchor chain bypasses the guide roller, and after the anchor chain is clamped and fixed by the knife switch, the anchor chain penetrates through the anchor chain ring and tensions the anchor cable. The mode that the hydraulic pump and the hydraulic cylinder are manually operated to jack up the fixed knife switch to ascend and descend is adopted, and the mode that an original heavy anchor chain fixed knife switch is opened and closed manually in the prior art is replaced.

The application provides a floating body anchor pile steel wire rope automatic adjusting system and method. The adjusting system comprises a floating body square matrix, an anchor pile fixed on the water bottom and an anchoring steel wire rope connecting the floating body square matrix and the anchor pile, further comprises a displacement sensor installed on the floating body square matrix, a tension sensor installed on the anchoring steel wire rope, an electric winding mechanism for controlling the anchoring steel wire rope and a controller; the signal output ends of the displacement sensor and the tension sensor are connected with the signal input end of the controller, and the signal output end of the controller is connected with the control end of the electric winding mechanism; by presetting the partition tension threshold value, the anchor block adaptation coefficient and the storm mode parameters, the tension and water level data are collected in real time, and after the terrain compensation algorithm processing, the rope length is automatically adjusted. The application is suitable for ±3m water level fluctuation and 0-50m / s wind speed, does not need to transform the existing structure, significantly improves the anchoring stability, reliability and operation and maintenance efficiency, and reduces the labor cost and safety hidden danger.

The application discloses a deep-sea torpedo anchor construction device, wherein the deep-sea torpedo anchor construction device comprises a hoisting mechanism, a guide mechanism and an anchor chain, the hoisting mechanism is located on the sea surface; the guide mechanism is located between the hoisting mechanism and the seabed and is connected with the hoisting mechanism, a guide track is formed in communication between the top end and the bottom end of the guide mechanism, and the guide track is used for accommodating the torpedo anchor; the anchor chain is telescopically wound on the hoisting mechanism, the movable end of the anchor chain extends into the guide track from the top end of the guide mechanism, and is used for connecting the torpedo anchor in the guide track so as to limit the depth of the torpedo anchor extending into the guide track. The technical scheme of the application aims to reduce the influence of environmental load on the installation of the torpedo anchor and improve the bearing performance of the torpedo anchor after installation.

A pulley system for tying a boat to an anchor with a block and tackle assembly and a jammer. The block and tackle assembly has pulleys arranged on a first bracket and a second bracket and a rope strung through each of the pulleys. The jammer is coupled to the first bracket and has a channel and a jammer exit at the end of the channel. The jammer is configured to receive the rope within the channel and pass the rope out of the jammer exit. The channel and the jammer exit are configured to create a tortuous path for the rope through the first bracket. A swivel and a rope clip may be coupled to the block and tackle assembly. The swivel is configured to rotate at least 360 in either direction. The rope clip is configured to allow for quick tightening of the pulley system.

The present application relates to the technical field of ship anchor chain operation, and more particularly to a method for using external pump station to wind anchor chain, comprising the following steps: S1: building a winding anchor chain operation system, the operation system comprising an external pump station, an anchor windlass, an anchor chain tensioning device, a hydraulic control pipeline, an adaptive connection joint and a monitoring module; S2: connecting the external pump station to the hydraulic control pipeline and the adaptive connection joint; S3: adjusting to an operation pressure matching the load requirement of the anchor chain to be wound; S4: starting the external pump station to output hydraulic oil of a preset pressure to the hydraulic drive end of the anchor windlass through the hydraulic control pipeline; S5: during the winding of the anchor chain; S6: completing the winding operation of the anchor chain; the present application uses an external pump station to replace a traditional built-in pump station, the external pump station is configured with a frequency conversion speed regulation module and a pressure feedback regulation module, the output pressure regulation range is 0.5-30 MPa, and the power output parameters can be flexibly adjusted according to different requirements of the diameter, weight, material and operation environment of the anchor chain to be wound.

The utility model relates to the technical field of anchor pullers, in particular to self-locking type anchoring equipment of a floating navigation mark suitable for a channel of a rock-based riverbed, which comprises an anchor puller main pile body, an anchor chain head, an electric cylinder, a lifting connecting rod, a traction pull block, a main self-locking wing panel, a limiting bearing block and an auxiliary self-locking wing panel, the anchor puller can well adapt to the situation that the size of a hole is loosened and changed in the using process, and when the position of the navigation mark needs to be adjusted, the anchor puller can be flexibly taken out through the electric control device for position adjustment.

This invention relates to the field of ship anchoring and discloses an anchoring device for marine vessels, comprising a frame and roller units and an anchoring unit located on both sides of the frame. An anchor chain is threaded between the roller units and the anchoring unit, and an anchor head is fixedly connected to one end of the anchor chain. A speed regulating unit is provided at the upper end of the frame, and a processing component fixed to the ship's deck on one side of the frame for slackening the tightened anchor chain. The processing component includes a tube fixed to the ship's deck, and an adjusting seat is fixedly connected inside the tube. The adjusting seat has a through hole in the middle, and the bottom of the adjusting seat is a domed surface with ball bearings movably embedded therein. An expanding mask is fixedly connected to the bottom of the tube. This device loosens the taut anchor chain, allowing it to be wound in a naturally slack state, thereby improving the service life of the anchor chain, reducing the risk of anchor chain breakage, and ensuring the safety of anchoring.

The invention discloses a hydrometeorological observation anchor device with a tension monitoring sensor, and relates to the technical field of hydrometeorological observation, the hydrometeorological observation anchor device comprises a mounting seat, a positioning frame is fixedly mounted on the front side of the mounting seat, a winch is rotatably mounted in the positioning frame, the left end of the winch is connected with a servo motor, and the right end of the winch is connected with a tension monitoring sensor. The servo motor is fixedly connected with the positioning frame, the winch is wound with an anchor rope, the bottom end of the anchor rope is connected with a wireless tension sensor, the bottom end of the wireless tension sensor is provided with a connecting buckle, and the bottom end of the connecting buckle is connected with an anchor hook. The problems of disordered winding and unwinding of an anchor rope, serious abrasion, high maintenance cost, poor environmental adaptability and the like of an anchor mooring device in a marine hydro-meteorological observation scene are solved, integrated operation of winding and unwinding, monitoring, polishing, lubricating and chipping treatment of the anchor rope is achieved, the operation stability of the device is remarkably improved, the service life of the anchor rope is remarkably prolonged, and the adaptability to the severe marine environment is remarkably improved.

A method of temporarily anchoring a mobile offshore drilling unit (MODU) at an offshore drilling site includes laying out anchoring assemblies at a sea floor. Each anchoring assembly has a connection unit adjacent to the drilling site, an anchor line extending away therefrom, and a sea floor anchor. The MODU is brought to the drilling site. Successively, for each connection unit, a dynamic positioning system at the MODU is operated to move the MODU to a position substantially vertically above the connection unit, a drilling unit anchor line having a connection member is lowered from the MODU to engage the connection unit, and the drilling unit anchor line is connected with the respective anchoring assembly via the connection unit and the connection member. Each drilling unit anchor line is tensioned from the MODU to anchor the MODU at the drilling site via the plurality of anchoring assemblies.