591 results about "Marine equipment" patented technology

The invention provides a marine equipment drawing recognition method and system based on a large model, and is applied to the field of intelligent analysis and knowledge management of ship engineering. The method comprises the following steps: receiving a marine equipment engineering drawing image, extracting global features through character and line detection after preprocessing so as to identify a drawing type, and combining symbol classification and topological graph construction to determine an equipment connection relationship, performing multi-source information reasoning on the target component by fusing a rule engine and a large language model, and outputting a high-confidence identification result; according to the scheme, the accuracy and the automation level of recognition of the equipment parts in the complex marine drawing can be remarkably improved, and the technical bottlenecks of a traditional method in the aspects of insufficient cross-modal information fusion, limited semantic understanding depth, poor heterogeneous drawing adaptability and the like are effectively solved.

The invention provides an acoustic array adaptive calibration correction system applied to an underwater moving target, which relates to the technical field of marine equipment and comprises a multi-source excitation and environment perception module, an intelligent array perception and diagnosis module, an adaptive position inversion and uncertainty quantification module and a closed-loop calibration execution and self-learning optimization module. The multi-source excitation and environment perception module is responsible for providing reference signals required by calibration and establishing a correlation model of environment and formation distortion, and the intelligent array perception and diagnosis module realizes multi-modal data acquisition, array element health state monitoring and formation geometry self-perception. The adaptive position inversion and uncertainty quantization module completes signal processing, position estimation and error quantization propagation, and the closed-loop calibration execution and self-learning optimization module executes a compensation strategy, verifies a calibration effect and continuously optimizes system performance through online learning; the system solves the problem that a traditional method cannot process environment time varying, multi-sensor conflicts and uncertainty quantization.

The invention provides a high-temporal-spatial-resolution full-profile real-sea accurate corrosion test method and system, and the method comprises the steps: dividing the sea level into three layers of monitoring regions, namely an atmospheric near-sea-level layer, a sea-gas boundary layer and a seawater mixing layer, deploying corresponding sensor arrays in each monitoring region, and synchronously collecting the environmental parameters of each layer in real time; a standard corrosion coupon and a corrosion monitoring sensor for monitoring the local corrosion state of the sample are arranged in each monitoring area; performing space-time alignment on the acquired data to form an environment-corrosion strong association data set; an atmosphere-ocean coupling forecasting system is constructed, simulation and prediction of future environmental parameters are achieved, simulation results serve as input variables of a corrosion prediction model, and a material corrosion life prediction model is established in combination with historical test data. According to the invention, synchronous monitoring of multi-dimensional environmental parameters and material corrosion data within a range of 30 meters above and below the sea level can be realized, and an accurate basis is provided for material selection and corrosion prediction of marine equipment.

The invention provides an underwater positioning system combining sound ray propagation modeling and multipath interference suppression, which relates to the technical field of marine equipment and comprises a self-adaptive underwater sound sensing and environment cognition module, an environment self-adaptive sound ray propagation modeling module, a multipath suppression and direct wave extraction module and a multi-dimensional information fusion and self-adaptive positioning calculation module. The self-adaptive underwater sound sensing and environment cognition module is used for realizing multi-mode sensing and real-time environment feature recognition of underwater sound signals, and the environment self-adaptive sound ray propagation modeling module is used for constructing a dynamically updated sound wave propagation model and providing a propagation path and time constraint for positioning calculation; the multi-path suppression and direct wave extraction module is used for carrying out multi-path signal separation and extracting direct wave features with confidence marks, and the multi-dimensional information fusion and self-adaptive positioning calculation module is used for completing high-precision positioning calculation; according to the system, deep fusion of an environment model and signal processing can be realized, and the positioning precision and robustness of the underwater vehicle in a complex underwater sound environment are remarkably improved.

The invention provides an underwater target multi-sensor fusion magnetic field measurement system in a complex magnetic environment, which relates to the technical field of marine equipment and comprises a multi-mode magnetic field sensing module, an attitude correlation correction module, a layered fusion processing module and an environment self-adaption and magnetic anomaly detection module. The multi-modal magnetic field sensing module is responsible for collecting multi-dimensional and multi-type original magnetic field data around the underwater vehicle and constructing a complete magnetic field observation basis, and the attitude correlation correction module is used for eliminating the influence of the motion attitude change of the underwater vehicle on magnetic field measurement. The hierarchical fusion processing module performs hierarchical fusion on multi-sensor data; the environment self-adaption and magnetic anomaly detection module realizes background magnetic field separation, interference suppression and magnetic anomaly target identification; according to the system, the magnetic field measurement precision and robustness of the underwater vehicle in a complex magnetic environment can be improved, and high-reliability magnetic field feature extraction and situation awareness functions are realized.

The invention provides an underwater positioning system based on effective sound velocity compensation and multipath equalization, which relates to the technical field of marine equipment and comprises an environment sensing and modeling module, a signal propagation characteristic analysis module, an intelligent signal processing and distance measuring module and a fusion positioning and quality evaluation module. The environment sensing and modeling module is used for constructing a dynamic three-dimensional sound velocity field and evaluating the reliability of the environment, the signal propagation characteristic analysis module is used for establishing a multi-path propagation model and extracting path characteristic parameters, and the intelligent signal processing and distance measuring module is used for suppressing multi-path interference and realizing high-precision distance measuring calculation. The fusion positioning and quality evaluation module is used for multi-source information fusion positioning and forming a quality feedback closed loop; the system can effectively cope with sound velocity temporal and spatial change and multipath interference in a complex marine environment, remarkably improves the precision, stability and robustness of underwater positioning of the underwater vehicle, and is suitable for the fields of deep sea detection, ocean engineering and the like.

The invention provides an integrated heat recycling type catalytic micro-combustor for marine equipment and a preparation method, and relates to the technical field of clean fuel catalytic combustion under the microscale. The integrated heat recycling type catalytic micro-combustor comprises a micro-combustor shell, and two sets of symmetrically-arranged partition plates are arranged on the inner side of the micro-combustor shell; the two sets of partition plates divide the interior of the miniature combustor shell into a first preheating channel, a gas outlet channel and a second preheating channel, the gas outlet channel comprises a combustion chamber and a gas outlet which are sequentially communicated, a bluff body is arranged on the inner side of the gas outlet channel, and concave cavities are formed in the partition plates and correspond to the combustion chamber in position. The inner side of the air outlet channel and the outer side of the bluff body are coated with a catalyst; according to the invention, the preheating channel is arranged to set the micro-combustor to be in a backheating form, unburned gas in the micro-combustor is preheated by tail gas after gas intake, so that the gas obtains a higher initial temperature in the micro-combustor, and the design optimizes the high-speed limit of mixed gas in the micro-combustor, strengthens the heat cycle in the combustor and effectively reduces the heat loss.

The utility model discloses a marine active compensation medical sickbed, which relates to the technical field of marine equipment, and comprises a bed body support frame forming a plane; the middle limiting mechanism is connected to the center of the bed body supporting frame; the servo crank mechanisms are distributed in a surrounding mode with the middle limiting mechanism as the center, the servo crank mechanisms are at least arranged on the two sides of the middle limiting mechanism respectively, and crank connectors of the servo crank mechanisms are connected to the bed body supporting frame in a lifting mode; the control box is provided with an inclinometer and a controller which are connected with each other, and the controller is electrically connected to the middle limiting mechanism and the servo crank mechanism. According to the utility model, a stable working plane can be provided for an environment with complex working conditions on board, and favorable environmental conditions are provided for some special requirements such as operations.

The invention relates to a slow-release antifouling material, a preparation method thereof and a marine antifouling coating. The preparation method of the slow-release antifouling material comprises the following steps: carrying out amination modification on porous silicon oxide to obtain aminated porous silicon oxide; loading a carboxylic acid natural antifouling agent on the aminated porous silicon oxide to obtain an aminated porous silicon oxide antifouling agent; blocking pore channels in the aminated porous silicon oxide-antifouling agent by adopting gelatin to obtain aminated porous silicon oxide-antifouling agent-gelatin, so as to obtain aminated porous silicon oxide-antifouling agent-gelatin; and mixing the aminated porous silicon oxide, antifouling agent and gelatin with a chitosan solution at 25-45 DEG C for at least 0.5 hour, collecting a product, and drying to obtain the slow-release antifouling material. According to the slow-release antifouling material, the release rate of the antifouling agent can be reduced, and the protection effect on marine equipment is improved.

The invention relates to the technical field of monitoring and diagnosis, in particular to a state monitoring multi-source heterogeneous data synchronous acquisition algorithm, which comprises the following steps of: S1, accessing a sensor into an acquisition module of an integrated collector, and performing signal acquisition, signal type judgment and automatic adaptation on the sensor through an interface adaptation module; and S2, after the adaptation is completed, the integrated collector obtains the number and type information of the accessed sensors by using a data acquisition module. According to the application, the integrated collector is adopted to replace a traditional multi-sensor multi-collector, and the integrated collector realizes that the same interface adapts to the access of different state sensors through an interface adaptation algorithm, so that the synchronism and integrity of multi-source multi-channel data collection are ensured; an intelligent prediction and optimization scheduling algorithm is provided to solve the problem of data synchronous acquisition of an access sensor, and the accuracy and timeliness of marine equipment state monitoring are realized.

The invention discloses antifouling paint as well as a preparation method and application thereof, and belongs to the technical field of functional paint. The coating is prepared from a light-cured polyurethane prepolymer, modified silicon dioxide, a slow-release antifouling microcapsule and a low-surface-energy modifier. The preparation method comprises the following steps: synthesizing acrylated rosin dihydric alcohol, preparing a light-cured polyurethane prepolymer, mixing all the components, spraying, and carrying out ultraviolet curing. The obtained coating has super-hydrophobic, self-repairing and intelligent antifouling functions, is stable in performance in extreme environments such as salt mist, acid-base, ultraviolet aging and mechanical wear, and is suitable for marine equipment such as culture netting and ships. The invention solves the technical problems of toxic pollution and short service life of the traditional antifouling paint, and has obvious environmental friendliness and economic benefit.

The invention discloses an intelligent control anchor chain winding and unwinding system, and relates to the technical field of marine equipment, the intelligent control anchor chain winding and unwinding system comprises an anchor chain winding and unwinding mechanism, the anchor chain winding and unwinding mechanism is provided with an anti-inversion mechanism, the anti-inversion mechanism comprises a ring block with a hole, a rotating rod, a long rod, an electric cylinder and a gear ring, and the inner part of the ring block with the hole is rotatably connected with an inner ratchet wheel; a gear ring is fixed in the annular groove, the outer surface of the rotating rod is fixedly sleeved with a gear, a limiting block is fixed to the rotating disc, a clamping block is additionally installed at the telescopic end of the electric cylinder, a round rod is fixed to the surface of the rotating disc, and a pawl is rotationally connected to the outer surface of the round rod. According to the anchor chain braking device, the anchor chain can be braked in time when the power for driving the anchor chain chain wheel fails, so that the situation that the released length exceeds the safety range due to the fact that the anchor chain which is being withdrawn continuously slides down is avoided, the safety of a ship in the traveling process is improved, and meanwhile the service life of the anchor chain is prolonged.

The embodiment of the invention provides a device for laying a submarine pipe cable, and relates to the technical field of marine equipment, and the device comprises a base which comprises a base plate and inclined plates arranged at the two sides of the base plate, one end of each inclined plate is connected with the base plate, and the other end of each inclined plate is inclined downwards relative to the base plate; the fixing structure is connected with the base, and the fixing structure is used for fixing a submarine pipe cable; the lower side of the spoiler is connected with the base plate, the upper side of the spoiler extends in the direction away from the base plate, and the extending direction of the spoiler is the same as the axial direction of the submarine pipe cable. The submarine pipe cable provided with the device can well adapt to seabed scouring deformation, when the seabed is subjected to scouring change, due to the fact that the device can continue to play a sinking role after the pipe cable is exposed out of the seabed, the pipe cable continues to sink and be buried below the seabed, and the later operation and maintenance cost can be remarkably reduced.

The utility model relates to the technical field of laying and recovery of ocean equipment, and provides an underwater laying oscillation stopping swing frame device which comprises an arm frame, a variable-amplitude oil cylinder, a fixing frame and an oscillation stopping device. The arm support is composed of a base, a swing arm and a cross beam, and the variable-amplitude oil cylinder is connected with the base and the swing arm and can adjust the angle. The fixing frame is hung on the cross beam and provided with a wire rope winch and an umbilical cord guide wheel. The oscillation stopping device is composed of a suspension support and an oscillation stopping oil cylinder. According to the swing frame device, the flexibility and the operation range of the swing frame device are ensured through the hinged design of the arm frame and the angle adjusting capacity of the variable-amplitude oil cylinder, the swing stopping oil cylinder can absorb and buffer swing energy more directly and effectively through the arrangement of the swing stopping device, the swing amplitude is reduced, the control precision and the operation stability of the swing frame device are improved, and the swing frame device is suitable for large-scale popularization and application. And the operation stability is enhanced.

According to the offshore edge computing task unloading and resource allocation method based on air-sea cooperation, the task queuing model is established, the optimization target model with the purpose of maximizing the average throughput of the system is established, and whether the unmanned aerial vehicle unloads the task to the server or not is determined after solving; when the unmanned aerial vehicle does not distribute the task to any server, the optimal computing resource distribution amount of the unmanned aerial vehicle end is obtained; when the unmanned aerial vehicle allocates the task to the server, the optimal transmission power of the unmanned aerial vehicle unloading task and the calculation resource proportion allocated to the unmanned aerial vehicle by the server are obtained, and then task unloading and resource allocation of the offshore edge system based on air-sea cooperation are completed. According to the invention, through accurate scheduling and efficient cooperation of resources of the unmanned aerial vehicle and the server side, inherent limitations of marine equipment on data acquisition breadth and calculation processing depth can be broken, maximization of the average throughput of the system is realized, and meanwhile, a firm and flexible technical support is provided for efficient processing of various marine tasks.

The invention provides a marine photovoltaic energy storage inverter, which relates to the technical field of marine equipment and comprises a photovoltaic cell panel DC1, a storage battery DC2, a direct current filtering module, a boosting module, an inversion module, an alternating current filtering module and a control module. The photovoltaic cell panel DC1 and the storage battery DC2 serve as direct current input and are connected with the direct current filtering module, the direct current filtering module is connected with the boosting module, the boosting module is connected with the inversion module, the inversion module is connected with the alternating current filtering module, and the alternating current filtering module is connected with the control module. According to the invention, the design of double direct current filtering units is adopted, the interference of the input ends of the photovoltaic cell panel DC1 and the storage battery DC2 is effectively filtered, and the purity and stability of the marine direct current are ensured.

The invention relates to a standardized integrated access method and system for operation energy efficiency data of marine equipment, and the method comprises the steps: constructing an energy efficiency data standardization system which comprises equipment types and core energy efficiency data, and generating a unified data identifier of the operation energy efficiency of the marine equipment through a five-level coding rule; first and second core energy efficiency data measurement values of marine equipment with a standard interface and without a standard interface are collected in a wired and wireless mode respectively, and after protocol conversion and GPS second pulse time synchronization, outrange cleaning and null interpolation preprocessing are carried out; mapping the multi-source data into a marine equipment operation energy efficiency unified data identifier through a mapping rule; the current working condition is judged based on the ship operation state information, the time window width and the polynomial order are dynamically adjusted, high-order polynomial fitting processing is conducted on the data subjected to unified identification, and high-quality standardized energy efficiency data are output and transmitted to the ship energy efficiency management platform; and adaptive quality control and standardized integrated access of the multi-source heterogeneous energy efficiency data are realized.

A system for creating additional storage on a marine vehicle is provided. The system of the present disclosure is generally designed to secure to a marine vehicle via a rod holder, wherein parallel bars provide additional storage area for marine equipment, such as innertubes. To this end, the system of the present disclosure may comprise supports and support braces. Straps may be used to attach the marine equipment to the supports. To ensure that the supports are properly secured within the rod holders, a sleeve may be used to increase friction and change size. Board arms may be attached to the supports in order to increase storage area.

The preparation method of the A1-grade nondestructive inspection high-impact-toughness TC4 titanium alloy large-size bar comprises the steps that a secondary finished product cast ingot is subjected to a multi-heating-number high-temperature single-phase beta-region large-deformation forging process in the cogging stage, and as-cast grains are fully crushed and refined in the modes of axial upsetting, lateral upsetting, diagonal upsetting and the like; then, high-low-high-low repeated forging is conducted at the temperature above and below the phase transformation point, grain homogenization is achieved through high-temperature dynamic recrystallization, an original grain boundary is eliminated, and deformation dead zones of a corner angle area are effectively reduced in combination with multi-heating-number diagonal drawing-out forging; and finally, multi-heating-number forging is conducted in the two-phase region, a heat treatment process is combined, the microstructure form is further optimized, and a lamellar alpha structure is controlled to guarantee the low-temperature impact performance. According to the method, the structure uniformity of the TC4 alloy bar can be remarkably improved, the A1-level nondestructive testing requirement is met, and the method has excellent axial and chordwise mechanical properties and is suitable for ocean equipment and other high-end application fields with strict requirements for the comprehensive performance of materials.

The invention discloses a corrosion-resistant protective coating for marine equipment and a preparation method of the corrosion-resistant protective coating, and relates to the technical field of corrosion-resistant coatings. A corrosion-resistant protective coating for marine equipment comprises 40-60% of a resin matrix, 25-35% of a composite corrosion-resistant filler, 5-15% of a functional aid and 10-20% of a solvent, the resin matrix comprises fluorosilicone modified epoxy resin, the epoxy equivalent of the resin matrix is 450-500 g / eq, and the composite corrosion-resistant filler comprises zinc-aluminum alloy powder, a nanoscale layered material and a corrosion inhibition active component. The preparation method comprises the following steps: in an inert atmosphere, carrying out a reaction on epoxy resin and a fluorine-containing silicon monomer at 90-105 DEG C for 3-4 hours to carry out resin modification; grafting an amino silane coupling agent on the surface of the nano layered material by adopting a vapor deposition method, and activating the filler; sequentially carrying out high-speed shearing, ball milling and ultrasonic treatment to finish multi-stage dispersion; the preparation method comprises the following steps: putting the coating into a mold, aging for 24-48 hours at the temperature of 50-60 DEG C, controlling the viscosity of the coating to be 1500-2500cP at the temperature of 25 DEG C, and carrying out curing treatment.

The utility model belongs to the technical field of marine equipment, and discloses a methanol fuel supply cabin which comprises a main cabin body, a backflow buffer tank and a backflow buffer container, the main cabin body is communicated with a supply pipe, the supply pipe is communicated with marine methanol supply equipment, a first switch valve is arranged on the supply pipe, the backflow buffer tank is arranged in the main cabin body, and the backflow buffer container is arranged in the main cabin body. The reflux buffer tank is communicated with a reflux pipe, the reflux pipe is communicated with marine methanol supply equipment, a plurality of overflowing holes are formed in the reflux buffer tank, and the reflux buffer container is arranged in the main cabin body, is positioned below the reflux buffer tank and is used for receiving a mixed solution of methanol and oil flowing out of the reflux buffer tank; and an overflow port communicated with the interior of the main cabin body is formed above the backflow buffer container. According to the methanol fuel supply cabin, residual methanol fuel liquid in the marine methanol supply equipment can be recycled after a ship is stopped or before the ship is restarted, the recycling process is smooth, splashing is effectively prevented, and oil in the recycled methanol fuel liquid can be effectively separated.

The utility model belongs to the technical field of marine equipment, and particularly relates to a UV lamp device suitable for underwater biological attachment prevention, the UV lamp device comprises a waterproof shell, a lamp bead assembly and a circuit board assembly, and the lamp bead assembly and the circuit board assembly are connected to the interior of the waterproof shell in a sealed mode; the waterproof shell comprises a glass cover and a sealing outer shell, external threads are designed at the front end of the sealing outer shell, the glass cover and the sealing outer shell are fixed through a threaded sleeve, and the sealing outer shell is connected with an end cover. The method has the advantages that adhesion of algae and other plant microorganisms is prevented through ultraviolet light, the method is not affected by the shape of equipment surface materials and the like, frequent maintenance is not needed, and the method is friendly to the marine environment.

The invention relates to the technical field of marine equipment testing, and discloses a test device and method for simulating a free suspended span working condition of a submarine cable, and the device carries out the suspended span end load test of the submarine cable through the mutual cooperation of a static test assembly, a dynamic test assembly, a mobile platform, a seabed simulation assembly and an actuator. A control variable method is adopted to dynamically adjust test conditions such as tensile force, contact length, separation angle and seabed surface environment at two ends of a submarine cable to be tested, and change and rule of end load in a test process are acquired, so that end load information under different working conditions is accurately acquired; the technical problem of how to accurately obtain the end load information of the submarine cable is solved.

A power supply automatic start-stop control circuit of marine equipment is used for controlling automatic start-stop of an auxiliary power supply and comprises a first detection unit, a second detection unit and a switch control unit. One end of the first detection unit is connected with the output end of the auxiliary power supply to detect the output voltage of the auxiliary power supply; one end of the second detection unit is connected with the main power supply to detect output voltage of the main power supply; the control end of the switch control unit is connected with the output end of the first detection unit and the output end of the second detection unit so that the auxiliary power supply can be controlled to be turned on when the control end voltage is larger than or equal to a set voltage threshold value, or the auxiliary power supply can be turned off when the control end voltage is lower than the set voltage threshold value. According to the utility model, start-stop points can be set, and damage caused by over-discharge of the energy storage system can be effectively avoided.

The invention provides marine equipment, and relates to the technical field of deep sea culture. The marine equipment comprises a ship body provided with a water taking opening in a ship board, a suction part arranged in the ship body, a connecting pipe arranged in the ship body and a hose assembly arranged outside the ship body. The connecting pipe is connected between the water taking opening and the suction part, the hose assembly comprises a first hose and a second hose, the first hose is connected between the water taking opening and the second hose, and the second hose is used for being lowered into seawater in the lowering direction. According to the marine equipment, the water taking opening, the suction part, the connecting pipe and the hose assembly are main components of a deep water taking system, the hose assembly is connected to the water taking opening in the ship board, the second hose is lowered into the seawater in the lowering direction, the suction force is generated through the suction part, and then the seawater can be pumped by means of the second hose; the function of deep water taking on the marine equipment is achieved, and the requirement for culturing cold water fishes on the sea is met.

The utility model discloses a deepwater lifting pipe-laying ship for a 3000-meter-water-depth double-pipe-laying system, a main ship body of the deepwater lifting pipe-laying ship is arranged to be of a three-layer continuous deck structure, and a bottom layer is a double-bottom layer and is used for arranging marine equipment; the middle layer is a freeboard deck and is used for arranging an S-Lay pipe laying area; the upper layer is a main deck and is used for arranging a J-Lay pipe laying area and a pipe stacking area; a full-rotation crane is arranged at the stern part of the main ship body; a moon pool is arranged in the middle of the main ship body, and a J-Lay tower is arranged on the upper portion of the moon pool. A living building and a helicopter platform are arranged at the bow part of the main hull; a plurality of full-revolving propellers, a plurality of telescopic propellers and a plurality of side propellers are arranged on the outer side face of the bottom of the main ship body. The deepwater lifting platform can continuously work at the water depth of 3000 meters, and is provided with an S-Lay pipe laying system and a J-Lay pipe laying system.

The invention discloses a nano titanium-organic silicon modified epoxy resin anticorrosive coating and a preparation method and application thereof.The preparation method comprises the following steps that organic silicon modified epoxy resin is prepared, nano titanium functional filler is prepared, and then the prepared organic silicon modified epoxy resin, powder filler, a dispersing agent, a flatting agent and a defoaming agent are taken to be evenly mixed; adding into a mixed solvent, putting into a high-speed dispersion machine, and stirring at normal temperature at the rotating speed of 2000-3000rpm to obtain mixed slurry; then, adding a nano titanium functional filler, and stirring in a high-speed dispersion machine at normal temperature at the rotating speed of 2000-3000rpm to obtain a nano titanium-organic silicon modified epoxy resin coating; then adding an amine curing agent into the coating, mixing and stirring, and finally coating the surface of a base material with the coating and drying to obtain a cured coating. The high-temperature-resistant coating which is excellent in comprehensive performance and can provide anti-corrosion protection for high-temperature marine equipment for a long time is prepared.

The invention relates to the technical field of ship equipment swing inclination tests, in particular to a positioning execution mechanism for ship equipment swing inclination tests, which comprises two symmetrically distributed fixed bottom plates, two connecting frames are fixedly mounted on the upper sides of the fixed bottom plates, and mounting blocks are fixedly mounted on the corresponding sides of the two connecting frames. A rotating tooth block is engaged with a first adaptive rack, a first sliding block and a second adaptive rack at the bottom of the first sliding block are driven to reciprocate, the second adaptive rack is engaged with a tooth groove in a second rotating shaft, and finally, the rotating motion of a first rotating disc is accurately converted into preset-angle reciprocating swing of the second rotating shaft; according to the series of transmission structures, continuous rotation of the motor is converted into accurate swing output, the swing amplitude of the swing rod can be linearly controlled by controlling the rotation angle of the motor, high-precision amplitude setting capacity is provided for tests, and the defects that the swing amplitude of a traditional mechanism is difficult to adjust and low in precision are overcome.

The invention discloses a multifunctional ship single-point mooring chain stopper, which belongs to the technical field of ship equipment, and comprises a chain stopper seat welded on a deck; the stop assembly is rotationally connected to the chain control seat; the distance adjusting assembly is slidably connected to the surface of the stop assembly; the pin fixing assembly is connected to the interior of one end of the stop assembly in a clamped mode; the speed reduction assembly is slidably connected to the side face of the stop assembly. When it is observed that the gap between the anchor chain and the chain control switch blade is increased, the [-shaped stop block slides on the surface of the chain control switch blade, so that the inclined groove in the side face of the [-shaped stop block is tightly attached to the anchor chain all the time, and effective braking of the anchor chain is achieved. When the chain control knife switch is closed, energy of the anchor chain in the moving process can be absorbed and consumed through preferential contact of the speed reduction block and the anchor chain and the damping effect of hydraulic oil, impact force and vibration of the anchor chain are reduced, danger caused by closing when the anchor chain slides out at a high speed is relieved, and the chain control knife switch has the advantages of being high in stability and safety.

The invention discloses a marine equipment impact test platform, and relates to the technical field of marine equipment tests. The device comprises a test pool, the bottom of the test pool is fixedly provided with a plurality of water cannon pipes, the top ends of the plurality of water cannon pipes are fixedly provided with turning pipes, the test pool is internally provided with a test floating platform, the test floating platform is internally fixedly provided with a placing platform, and the placing platform is internally provided with equipment to be tested. By arranging the water cannon pipes, a high-pressure water source conveys high-pressure water flow into the test pool through the water cannon pipes, and meanwhile, the water flow is turned through the turning pipes, so that irregular undercurrent is formed in the test pool, large-scale waves appear on the water surface of the test pool, and the test floating platform shakes along with the waves; the wave amplitude can be controlled by controlling the water pressure, so that the stability of the to-be-tested equipment when the ship body is impacted by waves is tested, the scene that the ship body shakes in storm waves is simulated, and the test result is closer to the actual environment.