20results about "Anchor handling/lashing" patented technology

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.

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 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.

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.

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.

The application discloses a kind of test simulation equipment for simulating throwing anchor, dragging anchor in ship movement.The equipment includes water tank and track system, tow control system, anchor operating mechanism and data acquisition and processing system;Water tank and track system provide test water environment and the height of trailer (for simulating ship) from water surface, tow control system drives trailer to move along track, anchor operating mechanism controls anchor dropping position by receiving signal, realizes throwing anchor simulation, data acquisition and processing system monitors anchor chain stress in real time, captures anchor body into water and dragging process by high-speed camera, all data are integrated transmission to control computer by synchronizer, and after processing, output anchor dropping speed curve, anchor chain dragging force peak value and drag anchor trajectory and other parameters.The all test simulation elements of the application are controllable and known, easy to use, can play the role of improving the accuracy and test efficiency of ship throwing anchor, dragging anchor test simulation.

This invention belongs to the field of anchor winch technology, specifically an anchor winch mooring winch, including a drive box; an output shaft is rotatably connected to the surface of the drive box; the output shaft is driven by a motor and gear set inside the drive box, and the output shaft passes through the drive box; a pair of mooring drums are arranged on one side of the drive box; the two mooring drums are fixedly connected to a transmission shaft, and the transmission shaft is fixedly connected to the output shaft through a jaw clutch; an anchor chain wheel is arranged on the side of the drive box away from the mooring drums; the anchor chain wheel is fixedly connected to the output shaft through a jaw clutch, and by reciprocating screw driving the slider and guide roller to move at the connecting frame, the cable between the guide rollers can also move at a uniform speed, thereby making the cable more evenly wound on the surface of the mooring drums, avoiding the aggravation of friction between the cables due to uneven cable distribution, thus avoiding a reduction in the service life of the cables.

The present invention relates to a segmented gravity anchoring device (1) for marine structures, comprising a main body (100) in the form of a hollowed solid column, a plurality of solid segments (20), wherein each of the plurality of solid segments has a through-hole (5), a lower securing segment (60, 70), wherein the lower securing segment (60, 70) has a through-hole (6) and an orifice (7), a mooring line (30), wherein the mooring line (30) is inserted into the through-hole (5) of the plurality of solid segments (20) and into the orifice (7) of the lower securing segment (60, 70), and a pin (40), wherein the pin (40) is inserted into the through-hole (6) of the lower securing segment (60, 70) and wherein the pin (40) is connected to the mooring line (30). The assembly of the anchoring device (1) segmented in blocks makes it possible to adjust the length, and consequently the load capacity on board the installation vessel, by removing or adding blocks. The blocks are only subjected to compressive forces, which allows the use of lower-cost materials such as cast iron and high-density concrete for manufacturing same. The result meets the requirements necessary for anchors intended for foundations of offshore or subsea structures, from exploration or production platforms and floating wind turbines to production lines, risers and umbilicals, inter alia.

This utility model relates to the field of marine component technology and discloses an integrated hydraulic anchor winch, including a base, a gearbox fixed on the base, an input shaft of the gearbox connected to an external power source, a reel connected to the output shaft of the gearbox, the reel being rotatably mounted on the base, a buffer device installed on the base, a rope wound around the reel, and the output end of the rope wound around the buffer device and extending away from the reel. This device solves the problem of wind and waves easily impacting the reel when pulling the rope. By buffering the impact, the tension on the rope is prevented from acting directly on the reel, thus extending the service life of the anchor winch.

This application aims to provide a gravity-compensated constant tension anchoring system and its usage method, including a floating platform and a gravity anchor arranged on the seabed, a fixed guide on the floating platform and a movable guide below it, and a counterweight connected to the movable guide. One end of the main cable is connected to the gravity anchor, and the other end is wound around the fixed guide and the movable guide in sequence before being fixed to a connecting seat on the buoyancy platform. In this scheme, the main cable forms a redundant adaptive adjustment length after being wound. Regardless of the rise and fall of the water level, the gravity of the counterweight acts on the movable guide in real time, so that the main cable always maintains a constant tension. The buoyancy platform rises and falls smoothly with the water level. Adaptive adjustment can be achieved without additional power and control. The entire application adopts a purely mechanical structure, which has the characteristics of no energy consumption, no maintenance and high reliability. Its usage method is simple and convenient to operate.

A portable marine anchoring device maximizes holding capacity while anchored into a body of water and a portable fender capable of being securely fastened to a vessel to prevent it from being dislodged over time.

A refillable ballast anchor vessel and, more particularly, but not exclusively, a refillable ballast anchor vessel filled by the user with available ballast and connected by an anchor line to a floating object.

The application discloses an anchor discharger for marine ships and particularly relates to the field of marine ship equipment, which comprises an anchor discharger body, a clamping hook rotatably arranged on one side of the anchor discharger body, and a rolling unlocking mechanism and a pushing mechanism arranged in the anchor discharger body. The top rotating wheel with the retreat resistance groove first pushes against the clamping hook, the friction between the top rotating wheel and the clamping hook is low, the retreat resistance groove can quickly unlock the clamping hook when the top rotating wheel rotates, the supporting plate on one side of the clamping hook can press the outer wall of the clamping hook through the supporting spring pressure during the unlocking process of the clamping hook, the clamping hook can be quickly pushed out after being unlocked, the clamping cover plate horizontally pushed by the supporting straight plate can wrap and cover the push rod and the pull rod, the situation that the push rod and the pull rod are unlocked by being downwardly rotated in advance due to external unstable factors is avoided, and the push rod and the pull rod can be leaked and rotated by pulling up the supporting straight plate and unlocking the clamping cover plate through the backward movement.

A kayak anchor support system includes a first support arm having a first end opposite a second end, wherein the first support arm is removably securable to a kayak via at least one mounting bracket. A proximal end of a second support arm is affixed to the first support arm adjacent to the first end. The second support arm extends orthogonally from the first support arm such that a distal end of the second support arm is maintained in an elevated position above the kayak. A pulley is affixed to the distal end of the second support arm. An anchor cable is engaged with each of the pulley and a reel, wherein the reel is disposed opposite the pulley. An anchor is affixed to a terminal end of the anchor cable, whereupon actuation of the reel, the anchor is selectively movable between a raised position and a lowered positioned.

The application provides an anchoring method for a marine autonomous surface ship, and belongs to the technical field of ship anchoring. The method comprises the following steps: collecting ship state data, environment data and anchoring equipment state data in real time; making an autonomous decision on anchoring based on the ship state data, the environment data and the anchoring equipment state data, and outputting a decision result of a target anchoring position, an anchoring time, an anchoring speed and a chain length; outputting an alarm information when any decision result does not meet a preset safety condition, and triggering re-collection and re-decision; continuously monitoring an anchoring state after the ship completes anchoring, and triggering an automatic response or an anchor alarm if an abnormal state occurs. The application can make real-time linkage analysis based on the ship state, environment changes and anchoring equipment state, form an autonomous decision result of the target anchoring position, the anchoring time, the anchoring speed and the chain length, and thus improve the pertinence and timeliness of the anchoring decision.

The utility model relates to the technical field of marine anchor windlass, and disclose a marine anchor windlass chain wheel anti vibration machine base, including base, the left and right sides of base all are connected with screw rod, the outside of left and right sides screw rod all is provided with multiple first splicing plates, the upside of base places multiple second splicing plates, multiple second splicing plates evenly distribute between multiple first splicing plates, the second splicing plate of the present new scheme is set up, and first splicing plate supports anchor windlass, anchor chain wheel, and then when anchor windlass, anchor chain wheel extrude second splicing plate, when second splicing plate receives and is shaken and will extrude first splicing plate, when extrusion power is small, then will restore to original position, while the upper and lower two groups of first splicing plates can guide and limit when the reverse recovery of second splicing plate is positioned, improve the stability of the device use, indirectly improve the stability of anchor windlass, anchor chain wheel installation.

A portable marine anchoring device maximizes holding capacity while anchored into the bottom of a body of water and a portable and foldable fender capable of being securely fastened to a vessel to prevent it from being dislodged over time.