49results about "Water acting propulsive elements" patented technology

An outboard motor includes a steering mechanism including a pinion located in a central portion of an outboard motor body in a right-left direction and operable to rotate together with the outboard motor body, a rack operable to linearly move to rotate the pinion, and a rack position detector on a first side of the rack opposite to the pinion to detect a position of the rack.

The invention relates to the technical field of ship shafting measurement, and discloses a polar region ship shafting comprehensive measurement system and method, and the system comprises a data collection module, a preprocessing module, a data processing module, and an evaluation module. The data acquisition module acquires a strain signal, a vibration acceleration signal, a temperature signal, an axial displacement signal and a radial displacement signal of a shaft system through a sensor group, and the preprocessing module performs wavelet packet decomposition and adaptive threshold denoising, mean filtering and triple standard deviation criterion abnormal value elimination processing on the signals. The data processing module fuses the data of the same physical quantity based on an improved Kalman filtering algorithm and dynamically adjusts the weight of the fused data to obtain final optimized data, and the improved Kalman filtering algorithm comprises the step of introducing a temperature drift compensation factor into a state transition equation, and the evaluation module predicts potential fault types and development trends through an operation state evaluation model based on the optimization data.

The present disclosure provides an information interaction method, system, and apparatus, a storage medium, and an electronic device. The method includes: obtaining a type of a target environment in which a target robot currently operates, where the type of the target environment includes an underwater environment and a non-underwater environment; determining a target communication mode based on the type of the target environment, where the target communication mode is used to indicate a communication mode between the target robot and a charging station; and controlling the target robot to establish a communication connection with the charging station in the target communication mode and controlling the target robot to perform information interaction with a target terminal via the charging station.

Drive unit for a foil-supported watercraft, comprising a drive motor, a flexible shaft and a propeller unit, characterized in that the drive motor is arranged in the support body and is connected to the propeller unit located outside the support body via the flexible shaft.

The utility model discloses a stern shaft bracket fairing, a boat power device and a boat, the stern shaft bracket fairing comprises a main body, the middle part of the main body is provided with a through hole for a stern shaft to pass through, the outer diameter of the main body is gradually increased towards one side of a shaft hub of a stern shaft bracket, the side of the main body towards the shaft hub is provided with a bottom wall, the bottom wall is provided with a fixing hole, and the fixing hole is provided with a through hole. And the shaft sleeve is fixedly connected with the hub. Through the conical structure design that the outer diameter of the main body is gradually increased towards the shaft hub side, a gradually-changed guide surface can be formed in the fluid flowing direction, and the impact resistance between the front end of the shaft hub of the stern shaft bracket and a water body during sailing is remarkably reduced; moreover, the flow guide cover can be rigidly connected with the shaft hub through a mechanical fastener due to the arrangement of the bottom wall fixing hole, so that an integrated protection structure is formed, and the structural deformation and displacement risks generated under the navigation dynamic load are avoided; the three functions of resistance reduction, cavitation corrosion inhibition and foreign matter blocking are integrated on the whole, finally, the power transmission efficiency of the ship is improved, and the service life of the propeller and the service life of the bearing are prolonged.

The utility model provides a split type generator rotor expansion support for a ship transmission shaft, relates to the technical field of ship power generation, and is mainly used for solving the problem that a locking ring cannot form a complete inner conical surface after being assembled in the prior art. The split type generator rotor expansion support for the ship transmission shaft comprises a power output ring and a locking ring. The locking ring is composed of a split body A and a split body B, two I-shaped grooves are formed between the split body A and the split body B, I-shaped key strips are installed in the I-shaped grooves, and the split body A and the split body B are connected into an annular body through the I-shaped key strips. When the expansion bracket is assembled, the split body A and the split body B can be connected into an annular body through the two I-shaped key strips, so that the influence of the kerf width on the assembly is eliminated, a complete inner conical surface can be formed after the locking ring is assembled, the tightening force applied to the power output ring by the locking ring is improved, and the service life of the power output ring is prolonged. And the output torque of the whole expansion bracket is increased.

The utility model discloses a lifting type full-rotation steering oar lifting sealing structure which comprises a sealing seat and a lifting shaft, a sealing cavity is formed in the sealing seat, the sealing cavity penetrates through the sealing seat in the vertical direction, the lifting shaft penetrates through the sealing cavity, and the lifting shaft is in sliding fit with the sealing seat; a first sealing ring, a second sealing ring, a guide ring and a third sealing ring which are sequentially arranged from top to bottom are mounted between the lifting shaft and the sealing seat, the first sealing ring, the second sealing ring, the guide ring and the third sealing ring are mounted on the sealing seat, and the first sealing ring, the second sealing ring, the guide ring and the third sealing ring are in sliding fit with the lifting shaft. In the scheme, the three sealing rings form a triple sealing barrier between the sealing seat and the lifting shaft, so that seawater intrusion can be effectively prevented; the guide ring can play a role in guiding and can also bear thrust generated when the propeller works, and the situation that the sealing effect is affected by displacement of the lifting shaft is prevented.

The utility model provides a bionic robot based on a jellyfish movement mechanism. The bionic robot comprises a driving module, M mouth tentacles and an umbrella structure composed of N umbrella tentacles. Each mouth tentacle is in transmission connection with the driving module through a tentacle swinging transmission mechanism, so that the rotation of the driving module is converted into the swinging motion of the mouth tentacles around the own axis; the umbrella tentacles are in transmission connection with the driving module through the umbrella opening and closing mechanism so that rotation of the driving module can be converted into opening and closing movement of the umbrella structure, and therefore the umbrella tentacles can swing. The bionic robot is simple in structure, cooperative movement of opening and closing of the umbrella portion and swinging of the mouth tentacle can be achieved, and movement energy consumption is effectively reduced.

Described herein are examples of stiffening shafts, which in some cases are adapted to couple to a marine vessel. An exemplary stiffening shaft can be used to extend a motor from the marine vessel or be used as a shallow water stick anchor. The exemplary stiffening shafts can include a plurality of linked vertebrae stacked to form a column and at least one inelastic tension element threaded longitudinally through the plurality of vertebrae. The shaft can have a flexible configuration when the at least one tension element is released and a stiffened linear configuration when the tension element is tensed to react to torque and bending moments. Alternatively, the stiffening shaft can be used as a shallow water stick anchor for a marine vessel by piercing the bottom of a marine environment (e.g., a sea bed, a lake bed, a river bed, etc.).

This invention discloses a biomimetic jellyfish robot, comprising a base, a drive cam, a water-repelling structure, a sliding structure, and a tensioned integral structure. The base has a sliding hole; the drive cam, driven by a motor, is mounted on the base via a rotating shaft; the water-repelling structure is rotatably connected to the base; the sliding structure is installed within the sliding hole; the sliding structure corresponds in position to the drive cam; the water-repelling structure and the sliding structure are connected via a transmission connection through the tensioned integral structure, and the tensioned integral structure is rotatably connected to a support plate on the base. This invention combines a tensioned integral structure with a biomimetic jellyfish, utilizing the adaptive characteristics of the tensioned integral structure to make the mechanical motion efficiency of the biomimetic jellyfish more efficient, simplifying the underwater robot structure, resulting in smooth movement, more closely resembling the jellyfish's rapid contraction and slow expansion characteristics, and improving transmission efficiency.

The present invention relates to an autonomous water vehicle for collecting and separating waste from aquatic environments, thereby enabling the efficient extraction of algae from water bodies. The autonomous water vehicle comprises a floating body, a driving unit, a conveyor unit, a scraping assembly, a first capturing unit, a second capturing unit, and a control unit. The autonomous water vehicle reduces operational costs while being adaptable for lakes, rivers, and small water bodies, making it ideal for environmental clean-up projects. The autonomous water vehicle is continuously monitored by a user, thereby improving efficiency and convenience. The autonomous water vehicle utilizes capturing units and GPS tracker for enabling precise navigation, real-time detection of floating waste, and obstacle avoidance. This integration ensures efficient route optimization for enhanced cleaning performance.

The invention discloses a ship stern shaft multistage sealing device capable of preventing oil leakage, and relates to the technical field of sealing devices.The ship stern shaft multistage sealing device comprises a stern shaft tube, a plurality of bearings are arranged in the stern shaft tube, a stern shaft used for driving a propeller to rotate is arranged in the stern shaft tube in a sleeved mode, and sealing mounting shells are arranged at the two ends of the stern shaft tube correspondingly; a sealing device used for sealing the two ends of the stern shaft tube is arranged in the sealing installation shell, a triangular block at one end of a hydraulic push rod drives an extrusion ring to be adjusted in a small range, and the extrusion ring applies radial extrusion force to a spring sealing ring through a first wedge block and a second wedge block; the clamping force between the spring sealing ring and the stern shaft can be automatically adjusted through the hydraulic push rod according to the draft of a ship and the resistance of seawater, the sealing effect can be effectively improved, and lubricating oil is prevented from leaking; meanwhile, after the clamping force is adjusted, the stability of the tail shaft during rotation can be improved according to different resistances borne by the propeller.

The application belongs to the field of vibration isolation and noise reduction equipment, and discloses a variable load magnetic gas type three-way high static low dynamic stiffness vibration isolator and a use method. The variable load magnetic gas type three-way high static low dynamic stiffness vibration isolator comprises a supporting assembly, a positive stiffness assembly and a negative stiffness assembly. The positive stiffness assembly provides static bearing capacity and is composed of an air spring and a linear spring, and the negative stiffness assembly is composed of a magnetic group and a supporting structure thereof, and the purpose of reducing dynamic stiffness is achieved by being connected in parallel with the positive stiffness assembly. The variable load magnetic gas type three-way high static low dynamic stiffness vibration isolator has large static stiffness and small dynamic stiffness, three-way forces generated by the movement between the inner magnetic group and the outer magnetic resistance are used to offset a part of three-way forces generated by the air bag, the function of reducing stiffness is realized, the variable load magnetic gas type three-way high static low dynamic stiffness vibration isolator can adapt to the change of load working conditions, has a wider application scene and better three-way low-frequency vibration isolation performance, a wide vibration isolation frequency band, and stable working performance.

The present application relates to the water surface unmanned ship hybrid power series propulsion system and switching control method, the propulsion system includes propulsion device and propulsion monitoring system, the propulsion device adopts series arrangement to realize transmission connection, including diesel engine, gear box, motor, thrust bearing, shafting and propeller which are arranged in the order from bow to stern; the propulsion monitoring system includes central monitoring station, control box, power management system. The propulsion system makes the unmanned ship meet the high and low speed requirements, realizes the diesel engine as the power source propulsion in high speed working condition, and realizes the motor as the power source propulsion in low speed working condition, which meets the requirement of long time low speed sailing; the propulsion monitoring system automatically controls the diesel engine, propulsion motor and gear box, realizes the switching of propulsion mode, simplifies the complexity of remote control console control, avoids the adverse effect of communication delay on propulsion mode switching, and improves the efficiency of unmanned ship propulsion mode state switching.

The invention relates to a stern form for a ship propeller, applicable to the hull of single- and multi-propeller ships with a central propeller, characterized in that the cross- sections of the ship's hull, referenced as sections 8, ½, and 9, are modified in the parts between the reference lines A and B of the lines plan, shifting aft of the propeller the bulge necessary to house a shaft and a supporting bearing for the propeller itself, allowing a reduction of the hull's wetted surface, a decrease in fuel consumption, and an improvement in overall propulsive efficiency.

The application discloses a retractable four-blade wheel driving device of a vector propulsion ship and a control method, relates to the technical field of ship propulsion, and specifically relates to a retractable four-blade wheel driving device of a vector propulsion ship and a control method. The device comprises an engine, a gearbox, a gear box, a transmission rod and four groups of independently controllable blade wheels. The power of the engine is transmitted to the blade wheels through the gearbox and the gear box and the transmission rod. Each group of blade wheels is arranged on an independent telescopic support arm, the blade wheels are retracted and expanded and the angle of the blade wheels is adjusted through a rack, a telescopic shaft and a pull rod, and vector thrust is formed. The support arm adopts a guide rail type lifting mechanism, universal joints and multi-stage waterproof sealing structures are used between transmission components. The control method comprises the modes of berthing, sailing and turning in place: when berthing, part of the blade wheels are retracted, and the ship is accurately berthed by using the vector thrust; when sailing, all the four blade wheels are fully opened, and turning and oblique driving are realized through differential control; and 360-degree rotation in place is realized by reversely rotating the left and right blade wheels.

The present disclosure relates to a marine drive unit (1) for a marine vessel (100), comprising a shaft housing (2) having a housing face (3), a rotatable shaft (4) having an outer shaft face (5), the rotatable shaft (4) being rotatable arranged within the shaft housing (2) whereby an annulus (A) is defined between the housing face (3) and the outer shaft face (5), the shaft housing (2) comprising an inlet (6) being in fluid communication with the annulus (A) so that a lubrication can be introduced in the annulus, wherein one or more spacer element(s) (7) is / are arranged at the inlet (6) for at least dividing the annulus up in several parts around the inlet.

This invention provides a water propulsion device and a water-based mobile device. The water propulsion device includes a shaft, a drive assembly, a propeller, a skeleton oil seal, a first cutting element, and an oil seal cover plate. The shaft is used to connect a water-based carrier. The drive assembly includes a motor housing, a drive motor, and a rotating shaft. The motor housing is fixed to one end of the shaft, and the drive motor is disposed inside the motor housing and is used to drive the rotating shaft to rotate. The propeller is fixedly connected to the rotating shaft and forms a movable gap with the motor housing. The skeleton oil seal is sealed between the rotating shaft and the motor housing. The first cutting element is disposed within the movable gap. The oil seal cover plate and the first cutting element are arranged along the axial direction of the rotating shaft. One of the oil seal cover plate and the first cutting element is fixedly connected to the motor housing and covers the end face of the skeleton oil seal facing the propeller, while the other is fixedly connected to the rotating shaft. The oil seal cover plate is in line contact with the first cutting element, thereby preventing foreign objects that may enter the movable gap from entering the skeleton oil seal.

The utility model discloses a stern propeller monitoring alarm device which is characterized in that a front sealing element and a rear sealing element are respectively arranged at the tail and the head of a power cabin, a monitoring module which is annularly arranged along a main transmission shaft is arranged in the power cabin, the monitoring module is arranged close to the front sealing element, and an image capturing module and a flow velocity detection module are further arranged in the power cabin. An alarm module is arranged in the function cabin and electrically connected with the monitoring module, the image capturing module and the flow velocity detection module at the same time. According to the utility model, the leakage of the front sealing element possibly caused by accidents is monitored in advance through the monitoring module, the monitoring module can be instantaneously triggered by a large amount of inrush seawater once the leakage occurs, and the triggering is more scientific and accurate through the buzzing of the alarm module and the structural improvement of the triggering part; the annularly arranged monitoring modules are triggered in different regions, so that the leakage position can be quickly known; a flow velocity detection module is additionally arranged to monitor slight leakage; and an influence capture module is additionally arranged, so that the leakage condition is more accurately and intuitively prevented or known.

The invention discloses an intelligent water lubrication dynamic adjustment bearing and a bearing support control method, which are applied to support of a large propulsion shaft system. Comprising a bearing shell, a batten, an adjusting module, a hydraulic system, a control system and a sensor module. A plurality of arc-shaped cavities are formed between the interior of the bearing shell and the battens, and an adjusting module is arranged in each arc-shaped cavity; a sealed cavity is formed in the adjusting module, the side, facing the batten, of the sealed cavity is provided with a flexible sealing membrane, and the flexible sealing membrane protrudes or retracts in the radial direction of the cylindrical cavity. In combination with control feedback of a hydraulic system, a control system and a sensor module, liquid feeding or pressure relief of each closed cavity is independently controlled, and the purpose of adjusting the local height of the batten is achieved. Therefore, dynamic adjustment of bearing supporting force is achieved, eccentric wear can be effectively restrained, water film stability is improved, and the device is particularly suitable for long shafting structure scenes such as large ships and the like and has the advantages of being reasonable in structure, flexible in response, convenient to install and the like.

This application provides a modular power system and a modular electric surfboard. A modular power system includes a motor, a propulsion unit, an ESC module, and a mast assembly. The motor includes a first connection end and a second connection end. The first connection end of the motor is detachably connected to the propulsion unit. The second connection end of the motor is detachably connected to the ESC module. The mast assembly is detachably connected to the ESC module. A modular power system provided in this application and A modular electric surfboard applying it are arranged in a modular structure manner, and the mutually combined modular components use detachable interface designs, making installation, disassembly, and maintenance simple. A modular electric surfboard containing the modular power system of this application can achieve conversion between various surfing conditions and modes.

Embodiments of this application provide a robot control method and apparatus. The method includes: obtaining first sensing information collected by a first sensor in a first direction of a target robot; obtaining second sensing information collected by a second sensor in a second direction of the target robot, where the first direction is perpendicular to the second direction; and controlling a moving direction of the target robot in a target swimming pool based on the first sensing information and the second sensing information, where the target robot is configured to clean the target swimming pool. According to embodiments of this application, a problem of incomplete cleaning of the swimming pool due to an inappropriate distance between a swimming pool robot and a wall of the swimming pool is resolved. In this way, the swimming pool robot keeps an appropriate distance from the wall of the swimming pool, and a swimming pool cleaning effect is improved.

The invention relates to the technical field of ship engineering, and discloses a stern shaft structure which comprises a stern shaft bracket, a first through hole and a second through hole, the tail shaft bearing is mounted in the first penetrating opening; the tail shaft is arranged in the tail shaft bearing in a penetrating manner; the guide cylinder is installed at the end of the stern shaft bracket, a guide cavity is formed in the guide cylinder, a second penetrating opening and a third penetrating opening are formed in the two ends of the guide cylinder respectively, the second penetrating opening, the guide cavity and the third penetrating opening are communicated, the stern shaft sequentially penetrates through the second penetrating opening, the guide cavity and the third penetrating opening, and the stern shaft bearing is exposed to the guide cavity through the second penetrating opening. The inner diameter of the third penetrating opening is larger than the outer diameter of the shaft neck of the stern shaft, and the flow guide cylinder is further provided with an exhaust hole and a first sand leakage hole which are communicated with the flow guide cavity. According to the tail shaft structure, the first sand leakage hole and the exhaust hole are formed in the flow guide cylinder, silt and air entering the flow guide cavity can be actively exhausted, and therefore abrasive particle abrasion of a tail shaft bearing is prevented, and the reliable water lubrication effect is guaranteed.

The invention relates to the technical field of ship braking, and discloses a ship emergency braking device which comprises a ship propelling assembly, the ship propelling assembly comprises a ship bottom plate, a one-way transmission assembly is installed at the top of the ship bottom plate, a sealing shell is installed at the bottom of the ship bottom plate, and a fastening assembly is installed on one side of the sealing shell. A limiting sleeve piece is placed on the inner side of the fastening assembly, a paddle shaft is sleeved with the limiting sleeve piece, an inflation assembly is installed at one end of the ship bottom plate, a telescopic rod is installed on the side face of the inflation assembly, a flow choking gate is fixed to the bottom end of the telescopic rod, and an auxiliary assembly is installed on one side of the flow choking gate; the one-way transmission assembly drives the air inflation assembly in a one-way mode, when the ship brakes, the air inflation assembly is matched with the telescopic rod, the flow blocking gate enters water, heat in the sealing shell is discharged into the sleeve shell through the auxiliary assembly, and under cooperation of the fastening assembly and the limiting sleeve piece, paddle breakage caused by violent vibration of the paddle shaft is avoided.

A bearing (1) for radially supporting a propeller shaft (22) of a ship (20) has a plurality of lubrication holes (2a, 2b, 2c, 4a, 4b, 4c) extending from an outer surface of the bearing (1) to an inner surface of the bearing (1) to allow a flow of a lubricating medium between the inner surface and the outer surface, the lubrication holes (2a, 2b, 2c, 4a, 4b, 4c) including a first group of lubrication holes opening into the inner surface of the bearing (1) on a first side of the bearing (1) and a second group of lubrication holes (4) opening into the inner surface of the bearing (1) on a second side of the bearing (1). The bearing (1) further has at least one lubrication inlet (8, 11) opening into the inner surface of the bearing (1) and configured to allow a lubricating medium to be introduced into the inner surface independently of the first and second groups of lubrication holes (2, 4).

A drive unit for a marine vessel has an elongated drive unit body arranged to support a propeller shaft at a lower end and a motor interface at an upper end of the drive unit body, where the propeller shaft extends in a center plane of the drive unit. A drive shaft is arranged extending from the motor interface through the drive unit body to a bevel gear arrangement arranged to rotatably connect the drive shaft to the propeller shaft. The bevel gear arrangement has a first bevel gear arranged on the drive shaft and a second bevel gear arranged on the propeller shaft to cooperate with the first bevel gear. The drive unit has an oil channel with an aperture arranged to steer a flow of oil to flow away from the propeller shaft upwards through the drive unit body.

The present disclosure provides a robot and a robot control method. The robot includes a robot body. The robot body at least includes a control unit, a distance measurement unit, and a moving mechanism provided on the robot body. The distance measurement unit is connected to the control unit and configured to detect a distance between the robot and an obstacle. The moving mechanism is connected to the control unit and configured to drive the robot to move. The moving mechanism at least includes a first moving mechanism. The first moving mechanism is configured to drive the robot to move in a first operating environment. The distance measurement unit at least includes a first distance measurement sensor and a second distance measurement sensor provided on different surfaces of the robot. The first distance measurement sensor is configured to detect obstacle information in a first direction. The second distance measurement sensor is configured to detect obstacle information in a second direction. The control unit controls, based on the obstacle information in the first direction and the obstacle information in the second direction, the moving mechanism to move in the first operating environment. According to the present disclosure, operating efficiency of the robot can be improved.

The invention discloses a titanium alloy and a preparation method and application thereof, and relates to the technical field of titanium alloys. The invention provides a titanium alloy which comprises an alpha phase and a beta phase, and the volume ratio of the alpha phase to the beta phase is (65-85): (15-35). The alpha phase comprises a first alpha phase, a second alpha phase and a third alpha phase, and the volume ratio of the first alpha phase to the second alpha phase to the third alpha phase is (15-25): (10-20): (40-60); the width of the first alpha phase is 1020 microns, the width of the second alpha phase is 35 microns, and the width of the third alpha phase is less than 2 microns. According to the titanium alloy provided by the invention, the proportion, size and distribution of the alpha phase and the beta phase are accurately regulated and controlled, so that the problems of mutual exclusion of obdurability and insufficient corrosion resistance of a traditional titanium alloy are solved, and the titanium alloy which can keep high fracture toughness, high strength and high corrosion resistance in extreme service environments such as deep sea corrosion and high pressure is prepared.