96results about "Transmission with non-mechanical gearing" patented technology

An outboard motor incorporates a driveshaft and a propulsion shaft driven by the driveshaft. The driveshaft carries a pinion. The propulsion shaft carries forward and reverse gears. The pinion always meshes with the forward and reverse gear and drives the forward and reverse gears in opposite directions relative to each other. A hydraulic forward clutch mechanism couples the forward gear with the propulsion shaft. A hydraulic reverse clutch mechanism couples the reverse gear with the propulsion shaft. A shift actuator selectively operates the forward clutch mechanism or the reverse clutch mechanism to provide forward, reverse and/or neutral running conditions for the outboard motor.

An apparatus having at least one rotatable driven object having an edge on which are disposed a series of adjacent magnets of alternating polarity and a driving object rotatable by an external motor torque and having a series of adjacent magnets of alternating polarity on a magnet supporting surface. The magnet supporting surface of the driving object is rotatable through a common region approximately centered about the point of closest approach to the magnet supporting edge of the driven object for sequentially placing magnets of the driving object in the region enveloping the effective interactive range between the two objects. The fields of magnets of opposite polarity of the driving object interact with the fields of the magnets on the driving object to effect rotation of the driven object. Disclosed are structures for torque limiting wheels, magnetic gear trains, reduction gears and ball joints, and propulsion systems for watercraft and aircraft.

The invention provides a boat hull with a lateral thruster, which comprises the following components: a cover (17) of a passage (9) of a lateral thruster (3) that can be opened and closed; a shaft (19A) fixed on the cover (17) that supported by a boat bottom (7) and can rotate freely; and a drive apparatus (24) that open and close the cover (17) through the rotation of the shaft (19A), wherein, a rotational axis (L2) of the shaft (19A) extends along direction vertical to a passage axial cord (L1) of the passage (9), and departs from the passage axial cord (L1), and surface (17a) of the cover (17) when the passage (9) opened is closer to the passage axial cord (L1) compared to the time when a rotational axis (L2) crosses the passage axial cord (L1).

The invention aims to provide a crank and slider hydraulic transmission type cycloidal propeller mechanism. Blades of the mechanism are straight blades, all the blades are vertically distributed at the bottom of a ship body, and the blades swing around the axes of themselves while rotating around a spindle. A shaft of each blade is connected with a shaft of a corresponding swing hydraulic cylinder, two oil ports of each swing hydraulic cylinder are connected with two cavities of a corresponding double-rod linear hydraulic cylinder, and a piston rod of each linear hydraulic cylinder is fixedly connected with a slider of a crank and slider mechanism. The sliders and pistons of the linear hydraulic cylinders are driven to do reciprocating rectilinear movement through circumferential rotation of the cranks, power transmitted by oil of the linear hydraulic cylinders enables the swing hydraulic cylinders to swing in a reciprocating mode, and therefore the blades are driven to swing in a reciprocating mode, and the impelling action of a cycloidal propeller is achieved. The axial size of the cycloidal propeller is reduced, and the direction of force can be changed easily.

The invention discloses an underwater servo propeller which belongs to the technical field of ocean vessels, and the underwater servo propeller comprises a controller, a hanging frame, a hydraulic motor, a propeller, a magnetorheological fluid moment coupler and a force sensor, the controller is connected with the hydraulic motor to transmit control signals, the hydraulic motor is fixed at the bottom end of the hanging frame, the propeller is connected with the hydraulic motor, the hanging frame is internally provided with the force sensor, the force sensor is connected with the controller, the output end of the hydraulic motor is provided with the magnetorheological fluid moment coupler, and the magnetorheological fluid moment coupler is connected with the propeller. By adopting the hydraulic motor, the underwater servo propeller maintains the advantages of high power and small volume of a hydraulic system; and simultaneously, as a hydraulic servo valve is omitted, rotation speed control is realized by adopting the mode that the magnetorheological fluid moment coupler is connected at the output end of the hydraulic motor in series.

A high-power marine gearbox with PTO and PTI functions at least comprises a case and an input shaft oil cylinder arranged in the case by a bearing, wherein, one end of the input shaft oil cylinder is connected with power by an input flange and a high-elastic coupler, and the other end thereof is connected with a main clutch which is partly supported by the bearing and connected with a transmission shaft gear 7 by an interference additional key; and the transmission shaft gear is meshed with an output gear on an output shaft; the gear sheathed on the clutch is meshed with the gear sheathed on an auxiliary transmission shaft, and an auxiliary output clutch and an auxiliary input clutch are arranged on the auxiliary transmission shaft which is fixedly connected with an output flange; an auxiliary input gear is also sheathed and arranged on an auxiliary shaft, and meshed with a transmission gear which is fixedly connected on the transmission shaft; and the high-power marine gearbox has high reliability, and simultaneously is characterized by wide range of speed ratio of the gearbox, advanced index, low cost, beautiful appearance, high reliability, and the like.

The invention relates to an air-controlled gliding type underwater robot, wherein the main components comprise a front attitude cabin, a rear attitude cabin, an elastic skin, a high pressure cabin, alow pressure cabin, a buoyancy cabin, an electromechanical cabin, fins, a swing tail, an underwater camera, an underwater illuminating lamp, a screw propeller and the like. According to the present invention, the air-controlled gliding type underwater robot has characteristics of simple structure, easy control and good maneuverability, uses compressed air as the power source, and has great civil promotion value, wherein the floating, the diving, the positioning, the attitude adjusting and other underwater gliding actions are achieved by changing the ratio of the gravity to the buoyancy of therobot and the ratio of the center of mass to the buoyancy through the liquid carried by the high-pressure gas discharge extrusion equipment.

The invention relates to an auxiliary propulsion system of an underwater vehicle, comprising a shell the bottom of which is provided with an opening, wherein the shell is connected with the underwater vehicle; the lower part of the shell is provided with a hollow rotating shaft penetrating from front to back; two ends of the hollow rotating shaft are borne by a bearing arranged outside the shell, one end of the hollow rotating shaft is connected with a rotary retractable device, the middle of the hollow rotating shaft is provided with a base; and an integrated propulsion device is arranged through the base and rotates to enter into or leave out of the inner cavity of the shell along a plane vertical to the hollow rotating shaft under the action of the rotary retractable device. In the invention, the auxiliary propulsion system can be flexibly retracted in or out of the shell of the underwater vehicle through the rotary retractable device, and the propulsion direction is changed through a rotary mechanism. The rotary retractable device consisting of a reducer and a hydraulic motor and the rotary mechanism are adopted to realize low-speed high torque performance, and hydraulic driving can be used to realize no-energy self-locking, no-energy vibration absorption and other functions. The system has the characteristics of high efficiency and flexibility, low vibration and low noise, thus being applicable to the auxiliary propulsion of the underwater vehicle.

A self-contained hydraulic thruster for vessel. The hydraulic thruster incorporates an elevated helm platform mounted to a base having reinforced base feet, and a hydraulic fluid reservoir mounted on the helm platform. The elevation of the hydraulic fluid reservoir facilitates flow of hydraulic fluid to a hydraulic power pack mounted on the base. A lower unit mounting tube is attached to the base, and at least one lower unit is mounted at an end of the lower unit mounting tube, laterally offset from the helm platform, so that when the lower unit is retracted and tilted up, it lies on one side of the platform, and the platform doesn't interfere with retraction and tilting of the lower unit. Lower units are pivotably mounted in lower unit housings with lower unit bushings, and steering is provided by a steering motor through an overhung load adaptor to a drive gear.

A boat propulsion system interposed between a prime mover and a propeller shaft comprises a hydro-mechanical transmission including a hydrostatic transmission part and a gear transmission part. The hydrostatic transmission part includes a variable displacement hydraulic pump having a movable swash plate and a hydraulic motor fluidly connected to the hydraulic pump. The hydraulic pump is driven by the output rotary force of the prime mover. The gear transmission part is drivingly interposed between the hydrostatic transmission part and the propeller shaft so that the gear transmission part is driven by the input rotary force of the hydraulic pump with the assistance of the output rotary force of the hydraulic motor. A hydraulic clutch system may be interposed between the gear transmission part of the hydro-mechanical transmission and the propeller shaft so as to select one of opposite output rotary directions of the propeller shaft.

A self-contained hydraulic thruster for vessel. The hydraulic thruster incorporates a lower unit housing tiltably attached to a lower unit mounting tube attached to a base, a tube whose upper end is attached through the lower unit housing, and a shaft slidably disposed within the tube. A substantial length of tube extends downwards from the lower unit housing, thus providing support for the shaft. An actuator is disclosed which extends and retracts the shaft relative to the tube. A steering clamp is releasably attached to an end of the shaft which protrudes through the top of the lower unit housing. A steering clamp key traveling in a shaft keyway, or a shaft key in combination with a steering clamp keyway, help maintain constant the angular orientation between the steering clamp and the shaft. A steering gear meshing with a steering assembly, or an actuator driving a tie rod, provide steering.

The invention relates to the technical field of pod rotation devices, in particular to a pod rotation hydraulic drive system. The pod rotation hydraulic drive system includes a bi-directional variablepump, a hydraulic motor, a first one-way valve, a second one-way valve, a first overflow valve, a second overflow valve, a third overflow valve, a fourth overflow valve, a two-position four-way solenoid valve, a first hydraulic control one-way valve, a second hydraulic control one-way valve, a two-position two-way solenoid valve, a washing valve, a counterbalance valve, a cooler, and an oil pump.A closed loop design is adopted, energy loss due to an opened loop is avoided, the efficiency is improved, and the stability is enhanced. The first hydraulic control one-way valve and the second hydraulic control one-way valve can achieve self-locking of the hydraulic motor so as to allow the hydraulic motor to be in a stable state as static; and the two-position two-way solenoid valve can achieve free slide rotation of the hydraulic motor, energy can be saved, and the working efficiency is improved.

A vertical fluid power transmission includes: a vertical crankshaft of an engine; a vertical output shaft; and a vertical torque converter disposed between the crankshaft and the output shaft. An oil supply passage is connected to one end of the circulation circuit of the vertical torque converter, and guides a stored oil that is drawn up from an oil tank and discharged by an oil pump. An oil return passage is connected to the other one end of the circulation circuit, and leads to the oil tank. A normally-closed pressure response valve is provided in the oil return passage. The pressure response valve is opened by an upstream pressure. Thus, the oil tank for storing a working oil of the torque converter is separated from the torque converter, thereby downsizing the torque converter, and the working oil is circulated between the oil tank and the circulation circuit of the torque converter, thereby promoting cooling of the working oil.

A radial vane fluid motor or pump has an open ended tubular rotor having a cylindrical outer surface rotatably mounted in a tubular stator having its inner surface contoured to provide successive portions of increased and decreased spacing relative to the rotor body. A plurality of elongated movable vane assemblies are mounted on and project outwardly from the rotor surface to continuously contact the stator surface. Bearings support the rotor within the stator, and seals are provided for sealing the space between the rotor and stator. Pressure inlets and exhaust ports are provided in the stator to permit the flow of pressure fluid into or out of the device. Mounting the vanes on the cylindrical rotor surface enables production cost reduction and simplifies maintenance. A conventional propeller mounted in the cylindrical rotor provides an improved shrouded propellor propulsion system for marine vessels. Mounting the system on a vessel for rotation about an axis perpendicular to the axis of the rotor enables steering of the vessel without use of a redder.

An outboard engine system includes a casing and an engine mounted in an upper part of the casing. The casing also contains a torque converter, and a vertically arranged output shaft connected to a crankshaft through the torque converter. In the torque converter, a turbine runner is arranged above a pump impeller and connected to the output shaft, and a transmission cover is connected to an outer periphery of the pump impeller so as to cover an upper surface of the turbine runner. A drive plate is secured at its central portion to a lower end of the crankshaft by a first bolt, and an outer peripheral portion of the drive plate is secured to the transmission cover by a second bolt. The torque converter is suspended from the crankshaft via the drive plate. Thus, it is possible to provide an outboard engine system which enables support of a torque converter without using any bearing exclusively for supporting the overall weight of the torque converter, thereby reducing the cost.

A sectional barge assembly and a hydraulic thruster apparatus for maneuvering the sectional barge assembly. The hydraulic thruster apparatus includes a hydraulic power unit and a thruster unit. The hydraulic power unit includes an engine and a hydraulic pump connected to the engine. The thruster unit includes a hydraulic motor and a propeller drivingly connected to the hydraulic motor to provide a thrust force that acts to move the sectional barge assembly. The sectional barge assembly includes a plurality of barges interconnected by connector devices that are also used to interconnect the thruster unit to the sectional barge assembly. Further, a hydraulic connection panel is mounted on the thruster unit and includes a plurality of hydraulic connectors which allow a plurality of hydraulic lines to be removably connectable thereto, respectively. By this arrangement, the hydraulic pump provides pressurized hydraulic fluid through the hydraulic lines thereto the hydraulic motor and other components of the thruster unit. Additionally, the thruster unit includes at least one hydraulic cylinder for controlling vertical rectilinear sliding of a thruster unit mast between a top position and a bottom position. The thruster unit also includes a rotating mechanism for rotating the mast and a propeller assembly of the thruster unit about a longitudinal axis of the mast.

The invention discloses a ship stern propelling device based on magnetic force transmission. The ship stern propelling device comprises an inner magnetic rotor, an isolating device and an outer magnetic rotor. The inner magnetic rotor comprises a shaft, an inner magnet and a clamp, the inner magnet is mounted on the shaft, and axial and circumferential limiting of the inner magnet are achieved through connection of the clamp and a key correspondingly. The isolating device comprises an isolating sleeve, a front bearing, a rear bearing, a stop catch ring and a pressing ring, the isolating sleeve is fixed to a ship body by bolts through the stop catch ring and the pressing ring, and radial supporting of the shaft end point and the two shaft shoulder points is provided by the front bearing and the rear bearing which are arranged in the isolating sleeve. The outer magnetic rotor is composed of an outer sleeve and an outer magnet, the outer sleeve is connected with an outer power machine, and the outer magnet is embedded to the outer sleeve. According to the ship stern propelling device based on magnetic force transmission, the technical problems that an existing propelling device is low in anti-pressure capacity, low in sealing reliability and limited in arrangement space under the severe using environment are solved.

The invention discloses a magnetically driven miniature underwater robot and a control method thereof, belonging to the technical field of robots. It includes a body and a fishtail drive assembly, the fishtail drive assembly includes at least one coil and a tail swing mechanism, the swing tail mechanism has a pair of magnets with opposite polarities on opposite sides, and the coils are energized to attract or repel the magnets, which is the pendulum The tail mechanism provides power. The present invention adopts the cooperation between the coil and the magnetic block. When the current flows to the coil, the generated magnetic field interacts with the magnetic field of the magnetic block. One side generates suction force, and the other side generates thrust force. When the current direction changes, the force The direction is also changed accordingly, thereby pushing the tail to produce a swinging effect, and then pushing the whole body forward. At the same time, the power-on time is changed to realize the control of the direction, which has the advantages of simple structure, reasonable design and easy manufacture.

A vertical power unit includes: an engine having a vertically arranged crankshaft; a vertically arranged output shaft provided below the crankshaft; and a torque converter providing a connection between the crankshaft and the output shaft. The torque converter is arranged so as to be offset from the crankshaft toward a cylinder block of the engine. A transmission device is provided between the crankshaft and the torque converter. The output shaft is arranged coaxially with the torque converter. Thus, the center of gravity of the vertical power unit is positioned as close as possible to the central portion of the engine, thereby minimizing bias of the center of gravity due to the weight of the torque converter and the output shaft to facilitate the handling of the vertical power unit.

The present invention discloses a gear case of an adjustable propeller. The gear case is provided with a power output (PTO) device. The PTO device comprises a PTO clutch, a PTO gear, a PTO shaft and a PTO shaft end cover. The present invention is characterized in that the gear case is also provided with a hydraulic brake device; the hydraulic brake device comprises a friction plate holder, an inner and an outer friction plates, a piston, a hydraulic brake casing and an oil distributor. As the hydraulic brake device of the PTO shaft is arranged in the case, the exhaust phenomena in the disengagement process of the PTO clutch is eliminated, and unnecessary power losses caused by gear case exhaust is reduced. The gear case meets the use requirements of users. Besides, the new gear case adopts high pressure connecting and energy storage elements. The gear case is flexibly connected, and the gear case can be provided with a plurality of PTO clutches.