30 results about "Deck machinery" patented technology

The invention discloses a large ship deck machinery brake structure based on a locating device. A caliper assembly formed by a main graduated scale (1) and a vernier scale (4) is arranged at the outer end of a brake rod, is vertical to the brake rod, is located at one side of a brake leg in the deck machinery brake structure, and is parallel to the brake leg when in a locating state. The locating accuracy of the deck machinery brake structure is ensured, the structure is simple, the operation is convenient, and a snap ring at a top part is connected by adopting a pin shaft, so that the rotation at a certain angle can be carried out, the deck machinery brake structure can be suitable for brake rods with different diameters, and the application range is wider; a tool locating mode is adopted, so that error caused by manual locating is avoided, the ship deck machinery brake structure can be located and arranged accurately, and the safety of machinery and people is ensured; the deck machinery brake structure is convenient to disassemble after use, and can be reutilized.

The invention discloses a winch rotation detection device and method and belongs the field of deck machinery. The detection device comprises sensing blocks, three proximity sensors and a processing module, wherein the sensing blocks are arranged at equal intervals along the circumference direction of a winch with a winch rotating shaft being as the center; the three proximity sensors are arranged opposite to the plane, where the sensing blocks locate; and the processing module receives pulse signals output by the three proximity sensors. Through reasonable setting of size and position relation of parts of the detection device, the three paths of pulse signals output by the three proximity sensors are allowed to have appropriate phase difference; then, the processing module carries out analysis on the three paths of pulse signals to obtain winch rotation direction and angle; and when the detection device works, the proximity sensors do not make direct contact with the winch, thereby preventing vibration obtained when the winch works from influencing the detection device.

The invention provides a non-mudhold double-body drag suction dredger and a construction method thereof and relates to dredging equipment and a construction method thereof. The technical scheme is that: the drag suction dredger equipped with a propelling device, drag suction dredging systems, a boat-loading system, deck machinery and a mud boat binding device is used for dredging and taking sand.The invention is characterized in that: the drag suction dredger is a non-mudhold double-body drag suction dredger; the dug sand is loaded into a selfpropelled mud boat anchored between two boat bodies of the drag suction dredger through the boat-loading system arranged on decks of the boat bodies on the two sides; and after being loaded, the mud boats are conveyed to the dredge filling position in a selfpropelled mode. The non-mudhold double-body drag suction dredger and the construction method thereof can be applied to large-scale dredge filling projects and sand-taking projects in abyssal regions far away from coasts.

The invention provides a coupling hoist achieving automatic cable take-up and pay-off for an unmanned ship. The coupling hoist comprises a motor, a coil, a coil support, a reset spring, a conduction contact piece, a drum shaft, a drum, a cable arrangement wheel shaft, a cable arrangement wheel, a reciprocating wire, a first chain wheel, a second chain wheel, a screw rod base and a screw rod sliding block. The coupling hoist achieving automatic cable take-up and pay-off is mainly applied to the field of unmanned ship deck machinery, a load power supply relay contact switch module and a chain wheel driving reciprocating automatic cable arrangement wheel are designed, the problem that an existing hoist needs to lead a power supply line out of a drag cable to be supplied to electric equipment for use is solved, and meanwhile the problems that in the prior art, coiling is messy, so that the space utilization rate of the drum and a cable containing bin is low, and equipment is likely to be damaged due to cable jamming are solved; a sensor, a PLC, an expert system and the like are arranged on the hoist, automatic control can be achieved, certain intelligence is achieved, and the device has the advantages of being simple in structure, few in fault points, easy to operate, free of maintenance, capable of conducting self-diagnosis, remote monitoring and maintenance and the like.

The invention provides an ocean light purse seiner. The ocean light purse seiner comprises a seiner body, a main engine, a fixed pitch propeller, outfitting equipment, fuel oil equipment, fire fighting equipment, life equipment, ventilation equipment, exhaust equipment, fire extinguishing equipment, pollution prevention equipment, lifting equipment, deck machinery equipment, navigation equipment, life-saving equipment, signal equipment, a power system, power distribution equipment and electrical equipment, wherein the outfitting equipment, the fuel oil equipment, the fire fighting equipment, the life equipment, the ventilation equipment, the exhaust equipment, the fire extinguishing equipment, the pollution prevention equipment, the lifting equipment, the deck machinery equipment, the navigation equipment, the life-saving equipment, the signal equipment, the power system and the power distribution equipment are all arranged on the seiner body. The ocean light purse seiner provided by the invention has a good ship type and high endurance, and is provided with a sea water desalination device, and thus the fresh water carrying quantity can be reduced, and the long-distance navigation endurance exceeds thirty days.

The invention relates to a traveling mechanism for ships and marine engineering deck machinery. The cable reel is installed inside the traveling frame, the electro-hydraulic slip ring is installed at the upper end of the traveling frame, and there are two sets of guide wheels, which are arranged front and rear along the direction of the guide rails on the walking frame. On the bottom mounting plate, there are two guide wheels for each group, which are arranged on both sides of the guide square steel on the left and right along the direction of the guide rail; there are four groups of rollers, which are arranged in four positions: On the side of the walking frame, each group includes two upper rollers and two lower rollers, which are arranged on the upper and lower sides of the guide rail; the pay-off frame is installed inside the walking frame, and there are two driving devices installed on the bottom plate of the walking frame. And through the meshing transmission connection between the pinion and the rack, there are two rail clamps, which are respectively arranged in the middle of the left and right sides of the walking frame, and clamp the guide rail in the guide rail device. The invention has the functions of walking with load, laying power cables along the track during walking, braking, limiting positions at both ends of the stroke, and buffering protection.

The invention relates to a special chemical cleaning agent for a liquid neutral environment-friendly ship pipeline, the chemical cleaning agent comprises the following components according to the proportion: the components and the weight percentages thereof of the cleaning agent are as follows: 0.8 to 1.2 percent of ammonium chloride, 1 to 4 percent of sodium fluoride, 3 to 7 percent of triethanolamine, 6 to 10 percent of sodium salicylate, 1 to 5 percent of fatty acid amide, 0.1 to 0.4 percent of defoamer, 0 to 12 percent of citric acid and the rest of water. A preparation technology is as follows: the components are mixed and arranged in a reaction kettle for carrying out reaction, detection, filtration and packaging according to the proportion. The neutral cleaning agent has the advantages of neutral, environmental protection, high cleaning efficiency, low cost and safe construction. The chemical cleaning agent is mainly used for the pipeline of a ship stern tube lubricating oil system, the pipeline of a fuel oil daily system of a generator, the pipeline of the fuel oil daily system of a boiler, the pipeline of a high and low temperature freshwater system, the pipeline of a hydraulic system of a deck machinery, the pipeline of the fuel oil daily system of a host and the pipeline of the lubricating oil system of the host, thereby assisting the chemical cleaning of water scale, rust scale and impurities in the pipeline of the boiler and the internal system of the waste gas boiler. The chemical cleaning agent is especially good at the chemical cleaning of various systems of a new built ship before driving the vehicle.

The utility model relates to a general type decompression device of a marine hydraulic system. The general type decompression device comprises a first fuel tank, a one-way variable hydraulic pump, anelectric motor and a fixed-value decompression valve, first fuel filters are installed on the fuel paths of the first fuel tank and the one-way variable hydraulic pump, and the electric motor drives the one-way variable hydraulic pump to rotate through a coupling; and the general type decompression device is characterized in that an output pipeline is connected with the one-way variable hydraulicpump and connected with a decompression valve pilot pipeline and a decompression valve inlet pipeline. The general type decompression device has the beneficial effects that the general type decompression device of the marine hydraulic system only has one power source of the one-way variable hydraulic pump, according to the actual needs, by adjusting the flow area A of an adjustable overflow valvetwo section throttle opening, the pressure source of any size required by ship deck machinery or device can be obtained, and the needs of the normal working condition of the hydraulic machinery of different ship decks and the pressure source of any size under various conditions are met.

The invention discloses an integrated control valve shell, which relates to the technical field of hydraulic control. The shell comprises a shell body, wherein an oil inlet one-way valve hole, a reversing valve hole, a counter balance valve hole, an oil return passage, a first oil port and a second oil port are arranged in the shell body; the oil return passage is used for connecting an oil return port of an oil supply pump station; the first oil port and the second oil port are used for connecting a first working oil chamber of a motor; the oil inlet one-way valve is communicated with a first port and a second port of the reversing valve hole respectively; a third port of the reversing valve hole is communicated with the first oil port; the second oil port is communicated with a fourth port of the reversing valve hole; a fifth port of the reversing valve hole is communicated with the oil return passage; and the first oil port is communicated with the oil return passage through the counter balance valve hole. According to the integrated control valve shell, a one-way valve, a three-position five-way reversing valve and a counter balance valve are assembled together in a concentrated manner through the oil inlet one-way valve hole, the reversing valve hole and the counter balance valve hole in the shell body, the deck machinery integration level is low and the size is large.