470results about "Steering rudders" patented technology

To provide a navigation monitoring robot for a ship and an avoidance navigation maneuvering system of an automatic navigation single-screw twin-rudder ship capable of ensuring safety navigation by assessing the collision risk in an extended warning sea area.SOLUTION: A navigation monitoring robot 300 for a ship acquires present positional information of an own ship, analyzes real time image data of a synthetic aperture radar image photographing a navigation sea area including the own ship, calculates a distance between a target object affecting the navigation and a present position of the own ship as a target separation distance, identifies whether or not the target object is a ship by collating an image pattern of a far-infrared camera image of the target object, image patterns of the far-infrared camera image of various target objects where temperature information of the far-infrared camera image is stored in a library, and the temperature information of the far-infrared camera image, recognizes the target separation distance as an influence degree that the ship gives to the safety navigation, and sends alarm information when it is determined that the target separation distance is within a dangerous area impairing the safety navigation.SELECTED DRAWING: Figure 5

The invention relates to the technical field of ship power and propulsion control. The invention provides a multi-source cooperative propulsion control method and system based on hybrid power and a straight wing steering oar. The method comprises the following steps: collecting ship motion state parameters and environment parameters in real time; constructing a multi-objective joint optimization model, and solving an optimal power distribution proportion and an optimal thrust vector under the current working condition by adopting a dynamic programming algorithm; based on the optimal power distribution proportion, a fuzzy PID controller is adopted to dynamically adjust the torque coupling ratio of the diesel engine and the motor; according to the optimal thrust vector calculation result, vector synthesis is carried out on the propulsive force and the steering torque; and predicting the motion state of the ship based on an extended Kalman filter, and correcting the weight coefficient of the multi-target joint optimization model on line in combination with the change rate of the channel boundary distance. The problem that adaptability to complex working conditions is insufficient due to the fact that a traditional control strategy does not fully fuse ship motion states and environment parameters is solved.

To provide a uniaxial two-rudder vessel capable of easily carrying out directional control and speed control and capable of carrying out vessel position retention maneuvering with fixed retention capacity at a low speed range.SOLUTION: A biaxial four-rudder vessel includes a maneuvering controller 201 for controlling an action direction of thrust around a stern working on a hull 110 by controlling a direction of a propeller wake flow of propulsion propellers 101a, 101b. The maneuvering controller 201 has parallel movement maneuvering unit 286 for moving the hull 110 in parallel in an arbitrary direction by combining an action direction of thrust of a starboard propulsion system 100a and an action direction of thrust of a stern propulsion system 100b in low speed range maneuvering.SELECTED DRAWING: Figure 2

The invention belongs to the technical field of ships, and discloses an arrangement position type polar region ship with a stern-direction ice breaking and discharging structure. The arrangement position type polar region ship comprises a ship body, an ice discharging piece and a rudder, and the width size of the ship body is B; the ice discharging piece is fixed to the bottom face of the stern, the outer surfaces of the ice discharging piece are all curved surfaces, the curvature radius R1 of the ice discharging piece in the ship length direction ranges from 0.20 B to 0.80 B, the curvature radius R2 of the ice discharging piece in the ship width direction ranges from 2 to 8, the contact area of the large-curvature outer surface and crushed ice is small, the crushed ice and the curved surfaces are difficult to form a stable attachment relation, and the ice discharging piece is not prone to falling off. Therefore, under the action of hydrodynamic force, crushed ice at different positions of the curved surface can quickly slide to different positions, accumulation of the crushed ice on the inner side of the upper portion of the rudder is avoided, and the sailing safety of a ship is improved. The rudder extends in the height direction of the ship, and the upper end of the rudder is installed on the bottom face of the ice discharging piece in a swinging mode and located at the end, close to the bow, of the ice discharging piece in the length direction of the ship, so that the ice discharging piece plays a role in protecting the rudder.

The invention discloses a wind-solar hybrid drive ocean unmanned ship platform and a design method thereof, and relates to the technical field of unmanned ships, the wind-solar hybrid drive ocean unmanned ship platform comprises a platform body module, a power propulsion module, an energy supply module, an environment sensing module and a control module, the platform body module comprises an unmanned ship main body of a strip-shaped single ship structure and stabilization hydrofoils, the stabilization hydrofoils are arranged below the unmanned ship main body, the power propulsion module comprises a wing sail and a sail rotating device, the wing sail is arranged above the unmanned ship main body through the sail rotating device, and the energy supply module comprises a solar charging panel and a storage battery connected with the solar charging panel; the low-resistance characteristic of the strip-shaped single ship structure of the unmanned ship main body is utilized, wind power driving of the wing sails and light energy power generation of the solar charging panel are matched, the cruising ability of the unmanned ship is improved, meanwhile, the problem that the unmanned ship main body of the strip-shaped single ship structure is poor in stability is solved through the stabilization hydrofoils, and the unmanned ship is more stable. And the navigation stability and the anti-overturning capability are improved.

The invention discloses a rudder system structure and an assembling method. The rudder system structure comprises a stern and a rudder blade. The stern is provided with a rudder horn, a steering engine and a rudderstock, the steering engine is arranged on the upper side of the stern, the rudderstock penetrates through the stern, the steering engine drives the rudderstock to rotate, the rudder horn protrudes in the horizontal direction to form a rudder button, and a rudder pintle is rotatably arranged on the rudder button; the rudder blade is connected with the rudder stock, the rudder blade is provided with a supporting part, a rudder pintle and a mounting concave position, the supporting part protrudes out of the rudder blade, the mounting concave position is located above the supporting part, the rudder button is arranged in the mounting concave position, the rudder pintle penetrates through the rudder button to be connected with the supporting part, the rudder pintle is rotatably connected with the rudder button, a box body is detachably arranged in the mounting concave position, and the box body is arranged above the rudder button. The rudder pintle is pre-installed on the rudder blade, the rudder button is in butt joint with the rudder pintle, meanwhile, the rudder blade is connected with the rudder stock, and then the box body is installed on the rudder blade, so that the activity space of the rudder button is enlarged, the operation difficulty is reduced, the operation is simple, the installation period is shortened, the slipway utilization rate is improved, and time and cost are saved.

An improved cap rudder and a boat. The cap rudder (1) comprises a rudder shaft (10) and a cap plate (11) fixed to a lower end (104) of the rudder shaft, wherein a rudder shaft sleeve (12) is axially located between the cap plate (11) and an upper end (101) of the rudder shaft, the rudder shaft (10) is radially supported in the rudder shaft sleeve (12) by means of a first bearing, and a pair of coaxially arranged transverse shafts (13) are perpendicular to an axis of the rudder shaft (10), with one end of each transverse shaft (13) being fixed to an outer wall of the rudder shaft sleeve (12), and the other end of each transverse shaft (13) being a bearing connection end (132) connected to a second bearing (133). The transverse shafts of a rudder anchor and the rudder shaft sleeve form a cross-shaped structure, and the rudder shaft sleeve can rotate around the transverse shafts, so that the rudder angle of the cap rudder is changed, thereby realizing the adjustment and control of the trim of a hull.

A method of controlling steering of a marine vessel includes receiving a steering input from an operator-controlled steering input device, determining a desired turn rate for the marine vessel and a desired roll angle for the marine vessel based on the steering input, and controlling a steering angle of at least one trimmable propulsion device based on the desired turn rate and controlling a trim deployment of a pair of trim tabs and / or the trimmable propulsion device based on the desired roll angle so as to steer the marine vessel according to the steering input.

A marine maneuvering system for maneuvering a vessel body includes a steering including a steering wheel, a manual operator on the steering to cause predetermined functions to the vessel body to be executed, and a controller configured or programmed to change the predetermined functions executed by an operation of the manual operator in accordance with maneuvering modes in which behaviors of the vessel body are mutually different.

The invention belongs to the technical field of ship steering structures, and particularly relates to a ship rudder horn capable of improving course stability, which comprises a rudder horn main body and a controller mounted in a ship body, the rudder horn main body is used for mounting a rudderstock, a mounting groove is formed in the bottom of the rudder horn main body, and the lower end of the rudderstock extends into the mounting groove; the rudder horn further comprises an upper mounting box which is arranged on the outer side of the rudder stock in a covering mode, and the upper mounting box is fixedly mounted at the top of the rudder horn body. Eccentric wear of the joint of the rudderstock and the rudder horn can be avoided, the long-term supporting stability of the rudder horn to the rudderstock is improved, and the course stability is improved; according to the inclination angle and direction of the rudder horn main body, proper reverse jacking pressure can be automatically controlled to be applied to the rudderstock, and the reverse jacking supporting effect is improved; meanwhile, the maintenance time of a rudder horn and the like can be automatically estimated and reminded, seawater drying is accelerated through airflow, ice slag cleaning is assisted, and seawater corrosivity is reduced.

Techniques are disclosed for systems and methods to provide dynamic display systems for mobile structures. A dynamic marine display system includes a user interface comprising a primary display and secondary display, where the secondary display is disposed along and physically separate from an edge of the primary display, and where the secondary display comprises a touch screen display configured to render pixelated display views and receive user input as one or more user touches and / or gestures applied to a display surface of the secondary display. A logic device is configured to receive user selection of an operational mode associated with the user interface and / or the mobile structure and render a primary display view via the primary display and / or a secondary display view via the secondary display corresponding to the received user selection and / or operational mode.

An adjustable surf wake system enhances a wake formed by a watercraft travelling through water. The system may include a flap for deflecting water traveling past the stern of the watercraft, and / or a positioner operably connected to the flap for positioning the flap relative to a longitudinal axis of the watercraft between a neutral position and an outward position. Positioning a port flap in its extended position enhances a starboard surf wake, and positioning the starboard flap in its extended position enhances a port surf wake. A wake modifying system for modifying a wake produced by a watercraft traveling through water may include a rudder pivotally mounted to the watercraft for steering the watercraft, a fin pivotally mounted to the watercraft substantially along a centerline of the watercraft and forward the rudder, wherein the fin pivots about an upright axis to modify the wake produced by the watercraft traveling through the water, an actuator mounted within the watercraft and operably coupled to the fin for pivoting the fin relative to the centerline, and a controller mounted on the watercraft allowing an operator to control the actuator and selectively pivot the fin to a desired angle θd relative to the centerline.

The utility model discloses a container transport ship, and belongs to the technical field of ships, and the container transport ship comprises a ship body used for loading containers; the tail vane is mounted at the bottom of the stern end of the hull; the propeller is installed at the bottom of the stern end of the ship body, the propeller is set to be of a fixed pitch, and the propeller is used for providing advancing thrust; wherein the tail vane is closer to the end part of the ship body relative to the propeller, a bulge is arranged at the end part of the tail vane opposite to a middle shaft of the propeller, the surface of the bulge is an arc-shaped surface, and a gap is formed between the bulge and the end part of the middle shaft of the propeller. According to the invention, the fuel consumption is reduced, better power performance can be realized, meanwhile, the pollutant emission in the sailing process is also effectively reduced, and the low-carbon requirement is met.

A system and method of steering a watercraft. The method comprising determining an estimated speed, an estimated yaw, and an estimated yaw rate of change of a watercraft based on a first output from a GPS and a second output from an inertial measurement unit; adjusting a position of a rudder coupled to a hull of the watercraft based on a position of a steering wheel; determining a desired yaw rate of change of a hull based on the position of the steering wheel and the estimated speed; energizing a propeller to provide a propelling force on the hull; and energizing a thruster coupled to the hull based on an error between the desired yaw rate of change and the estimated yaw rate of change.

The invention discloses a control method of a marine wind power boosting rotor, and relates to the technical field of ship energy conservation and control, and the method comprises the steps: determining constraint conditions of marine wind power boosting rotor control; according to the wind power environment parameters, the operation condition of the wind power boosting rotor for the ship at the t moment is determined, and the optimal rotating speed of the wind power boosting rotor for the ship is determined; constructing a target function controlled by the marine wind power boosting rotor, and calculating the optimal rudder angle and the optimal propeller power of the ship when the target function reaches the minimum by utilizing an optimization method according to the optimal rotating speed at the moment t, the rudder angle of the ship, the propeller power, the motion state parameters and the wind power environment parameters; and the rotating speed of the wind power boosting rotor and the rudder angle of the ship are adjusted according to the optimal rotating speed, the optimal rudder angle and the optimal propeller power. According to the method, cooperative improvement of rotor energy efficiency and ship control stability is achieved by controlling boundary constraint and self-adaptive adjustment of a complex wind field.

The invention discloses a steering engine transmission mechanism, and relates to the technical field of ship steering engines, and the steering engine transmission mechanism comprises a mounting base, a rotating disc, an electric drive steering mechanism, a detection mechanism and a hydraulic drive buffer mechanism; the steering engine shaft has the advantages of being reasonable and simple in structure and low in production cost, stable steering of the steering engine shaft can be achieved through cooperation of the electric drive steering mechanism and the hydraulic drive buffering mechanism, different steering requirements in ship navigation are met, and reliability and safety in the steering process can be ensured; steering driving of the steering engine shaft is achieved through the speed reduction motor with a brake and a specific transmission structure, meanwhile, the hydraulic drive buffering mechanism can provide effective buffering, the situation that steering impact is too large is avoided, and the requirements for steering precision and stability of a ship under various sea conditions can be met; according to the system, ship steering can be independently achieved when the electric drive steering mechanism or the hydraulic drive buffering mechanism is abnormal, the good fault-tolerant capability is achieved, large-amplitude steering can be achieved through linkage of the electric drive steering mechanism and the hydraulic drive buffering mechanism, and the safety and reliability of ship navigation are further guaranteed.

A control device for controlling a watercraft includes a position detection module and a positioning module. The position detection module is configured to detect a current position of the watercraft. The positioning module is configured to determine a new position for the watercraft within a delimited region depending on at least one positioning parameter when the watercraft approaches a boundary of the delimited region to within a predetermined distance or a parameterizable distance.

The utility model provides a steering system based on a yoke steering wheel and electronic steering gear box connecting structure, which comprises a steering unit, a steering unit and a control unit, the steering unit comprises a yoke steering wheel, an electronic steering gear box and a limiting mechanism, the steering unit and the control unit are installed in a ship cockpit, the steering unit is installed on a stern, and the electronic steering gear box is installed on the steering unit. The steering unit and the steering unit are both in electric control and communication connection with the control unit, and the control unit receives user operation information and actual steering data and outputs corresponding adjusting instructions through a PID algorithm. The connecting structure is compact in design, an electronic feedback system is strictly closed, the accuracy and reliability of the steering process are guaranteed, and the control performance of the ship is improved.

The invention discloses a wind-driven wing sail type unmanned sailing boat, comprising: a boat body comprising a water surface part and an underwater part, the water surface part being provided with a deck, the deck being provided with a solar panel, the underwater part being provided with a keel and a rudder blade; the wing sail is connected with the ship body through a sail rotating mechanism and used for providing sailing driving force, the wing sail is of a symmetrical structure, and flexible solar panels are embedded in the left side face and the right side face of the wing sail; the rudder blade is connected with the ship body through a rudder shifting mechanism and used for controlling the course; and the energy storage and control module is arranged in the ship body and used for being connected with the solar panel, storing energy and controlling the sail rotating mechanism and the rudder rotating mechanism to operate. The wing sail skin of a carbon fiber / PVC three-layer sandwich structure is adopted and matched with the variable-cross-section carbon fiber rib plate, balance of light weight and flutter resistance is achieved, the double integration mode of the solar cell is adopted, the flexible solar panels on the two sides of the wing sail and the deck monocrystalline silicon cell form a complementary power supply network, the autonomous survivability is high, and the requirement for ocean sailing is met.

The utility model discloses a socket device for connecting a main rudderstock and a detachable flap type rudder blade of a ship, which comprises a lubricating component, a connecting component and a connecting component, and the lubricating component comprises a main rudderstock body, a lubricating tank, an oil leakage hole, a ball and an upper oil pipe; the lubricating tank penetrates through the upper end of the outer surface of the main rudderstock body, the oil leakage hole is formed in the inner wall of the lubricating tank, the ball is movably installed in the oil leakage hole, the upper oil pipe is connected to one side of the upper surface of the lubricating tank, the sealing cover is installed at the upper end of the outer surface of the upper oil pipe, and the fixing plate is fixed to the lower end of the outer surface of the lubricating tank. Fixing holes are formed in the outer surface of the fixing plate. Through the arrangement of the lubricating assembly, the problems that in the background technology, if an existing main rudderstock is not properly lubricated, due to the fact that direct contact and friction between metal are increased, abrasion of parts is accelerated, and due to excessive abrasion, not only is the service life of the rudderstock shortened, but also the service life of the rudderstock is shortened are solved. The function of the rudderstock may fail at the key sailing moment, and the maneuverability and safety of the ship are affected.

The utility model relates to an eccentric adjusting mechanism of a rotating device for a pod propulsor, which comprises a rotating variable-frequency driving motor, a steering gear box, an eccentric flange plate, a rotating upper sealing pressing plate, a rotating box body, a rotating pinion, a rotating gearwheel and a rotating gear transition flange, the rotary large gear is arranged on the upper flange surface of the rotary gear transition flange and is externally meshed with the rotary small gear; the steering gear box is connected with a rotary upper sealing pressing plate fixed on the rotary box body through an eccentric flange plate, the eccentric flange plate and the rotary upper sealing pressing plate are installed in a clearance fit mode, and the center distance between the rotary small gear and the rotary large gear is adjusted by turning the eccentric flange plate. By installing the eccentric flange plate, the meshing clearance between the large gear and the small gear is adjusted, and the installation precision requirement is met. The gear backlash adjustment meets the requirements of transmission reliability, installation convenience and the like of the pod propeller slewing device.

The present invention relates to the field of traffic control, and discloses a modular servo structure for rudder surface and attitude control, including a servo motor, a modular controller and a protection mechanism. A end plate is arranged at the front end of the servo motor, an output shaft passing through the end plate is arranged at the output end of the servo motor, an installation plane is arranged on the upper surface of the servo motor, sliding grooves are symmetrically formed on the upper surface of the installation plane, an installation seat is arranged at the rear side of the upper surface of the installation plane, fixing cylinders are symmetrically arranged at the top of the installation seat, power plugs are arranged at the ends of the positive and negative power supply wires above the rear side of the servo motor, the two power plugs respectively pass through the two fixing cylinders, and locking bolts for fixing the power plugs are screwed on the tops of the fixing cylinders. After the modular controller and the servo motor are installed in place, the power supply docking holes at the rear end can be directly docked with the power plugs to realize the automatic docking work of the circuit, which is convenient for installation in a narrow space to save space.

The invention belongs to the technical field of rudders, and particularly relates to a ship side high-performance rudder which comprises a rudder body, a blowing and spraying cabin is arranged in the rudder body, a propeller control assembly is installed on the side of the blowing and spraying cabin, the other side of the propeller control assembly is meshed with a gear control assembly, and an inner and outer rod control assembly is arranged in the gear control assembly. One end of the inner and outer rod control assembly is connected with a gear transmission assembly, a differential mechanism is installed at one end of the gear transmission assembly, and a blowing flow guide assembly is arranged in the blowing cabin. The propeller control assembly comprises a thin shaft, a small straight gear, a small bevel gear and a propeller shaft, the outer wall of the thin shaft is fixedly connected with the small straight gear, and the small bevel gear is arranged on the side of the small straight gear; rudder angles around the ship body can be controlled, so that flow fields at different positions on the ship side are controlled, the ship type performance is improved, meanwhile, the flow fields on the ship side are further adjusted through the blowing and spraying device, and the steering effect is improved.

The utility model belongs to the technical field of fish breeding equipment, and particularly discloses a feeding boat for fish breeding, which comprises a boat body, a feed bin fixedly connected to the top of the boat body, a stirring motor fixedly connected to the side face of the feed bin, and a rotating shaft of the stirring motor penetrating through the side wall of the feed bin and fixedly connected with a stirrer. An inward groove is formed in the middle rear side of the bottom of the hull, a moving motor is fixedly connected to the interior of the front side of the bottom of the hull, a rotating shaft of the moving motor penetrates through the hull and is fixedly connected with a propeller, the bottom of the feed bin communicates with an auger conveyor through a connecting strip hole, and the tail end of the auger conveyor is connected with a distributing nozzle; the front end of the ship body is further fixedly connected with a positioning receiver and a wireless signal transceiver. The propeller is arranged on the front portion of the ship body, the material distributing nozzle is arranged on the tail portion of the ship body, when feed is thrown, the propeller passes through the throwing position, the risk that fish is scratched is obviously reduced, the feed bin is transversely arranged, and the gravity center of the ship is lowered.

The invention belongs to the technical field of closed-loop control systems, and particularly relates to a ship yaw angle closed-loop control system which comprises a machine shell and a paddle connecting rod, the paddle connecting rod is arranged on the left side of the interior of the machine shell in a penetrating mode, and the upper end of the paddle connecting rod is sequentially sleeved with a thrust direction indicator, a depth adjusting ring, a rotary clamping groove base, a driven gear, a shaft sleeve and a supporting base from top to bottom; the overall control system is flexible in ship yaw angle closed-loop control mode, the ship yaw angle can be accurately regulated and controlled according to the conditions that actual use scenes are complex, diverse and changeable, and the environment is dangerous, the troubleshooting efficiency and accuracy of risk factors in the ship sailing process are high, the ship sailing safety is improved, and the ship yaw angle control system is suitable for being popularized and applied. The locking time of the yaw angle is shorter, no manual intervention is achieved in the yaw angle adjusting and locking process, and the problems that an existing ship yaw angle closed-loop control system is complex in operation, poor in stability and poor in safety are solved.

To provide a gate rudder capable of reducing energy consumption during a voyage of a ship. A gate rudder including a pair of rudders including a left rudder and a right rudder disposed left and right, respectively, of a propeller at a stern, wherein each of the rudders includes a first rudder portion extending in a horizontal direction and a second rudder portion linearly extending in a vertical direction in rear view, wherein a rudder chord length of the second rudder portion in a front-rear direction is 40 to 100% of a diameter of the propeller, wherein the propeller is provided within a range of 15 to 650 of the rudder chord length from a front edge of the second rudder portion in side view, and wherein a rudder shaft that drives each of the rudders is provided at a position within a range of 30 to 500 of the rudder chord length from the front edge of the second rudder portion in side view.

A problem addressed by this invention is to enable quick reach to a target water area and to limit the amount of energy required for navigation in the target water area. A moving body 100 can fly in the air and can navigate on the water. The moving body 100 comprises a hull portion 1 and a rig portion 2 provided on an upper side of the hull portion 1. The rig portion 2 includes a sail 60 which catches the wind during the navigation and a mast 50 which supports the sail 60. The hull portion 1 includes a navigation rudder 32 which adjusts a travel direction of the moving body 100 during the navigation, and a keel 11 which is provided on an lower side of the hull portion 1.

A marine propulsion device includes a motor including an output shaft, a drive shaft extending in a vertical direction of the marine propulsion device, and a cooling device. The motor is disposed so that an extension direction of the output shaft is a direction perpendicular to the vertical direction. The cooling device includes an intake port taking water outside the marine propulsion device into the marine propulsion device, a motor water jacket provided in the motor and cooling the motor, a water pump disposed below the motor and sending water taken into the marine propulsion device from the intake port to the motor water jacket as cooling water, and a first cooling water passage connecting a discharge port of the water pump to an inlet port of the motor water jacket.

To control an automatic steering appropriately regardless of a ship speed, an automatic steering device includes processing circuitry. The processing circuitry acquires motion information including a ship length and a ship speed. The processing circuitry identifies a non-dimensionalizing motion parameter based on the ship length and the motion information. The processing circuitry generates a dimensionalizing motion parameter by dimensionalizing the non-dimensionalizing motion parameter based on the ship speed. The processing circuitry sets a control parameter of the model-based controller based on the dimensionalizing motion parameter.

This utility model relates to the field of steering gear lubrication technology, specifically a high-efficiency and energy-saving steering gear transmission device for ships. It includes a steering gear body, a transmission gear set inside the steering gear body, multiple temperature detection units for detecting the internal temperature of the steering gear body, a liquid cooling unit body installed on the outside of the steering gear body, and heat dissipation pipes arranged inside the steering gear body. Coolant absorbs heat from the internal side of the steering gear body through these pipes. This utility model uses liquid cooling, preventing moisture and dust from entering the steering gear body, thus avoiding the shortened service life of the transmission gear set due to moisture and dust. The lubricating oil is heated and stirred before addition to ensure optimal lubrication. A lubrication pump delivers the lubricating oil between the gears, reducing the friction coefficient and heat generation, thus solving the high-temperature problem at its source and protecting the gears, extending their service life.