91 results about "Boat building" patented technology

The invention relates to a technique for a 'water-swallow ship form' design, which belongs to the field of shipbuilding, and is suitable for manufacturing ships of which the prows have certain draughts during advancing, but is not suitable for manufacturing the ships of which the prows have shallow draughts during advancing, such as speed boats, small-sized yachts, wooden boats and the like. The 'water-swallow ship form' design is an effective method for reducing the water resistance for a boat during advancing. The basic principle of the 'water-swallow ship form' design is that the inner part below a draught part of a ship is designed and manufactured with a water flow pipeline with a larger front part and a smaller rear part, and a water flow accelerator is arranged in the pipeline. Thus, when the ship moves forwards, a part of water in front of the prow is smoothly swallowed into the water flow pipeline, and the water is accelerated by the water flow accelerator and flows backwards. The water flow is accelerated for one time even more times and is finally spurted out at a high speed from an outlet of the water flow pipeline below the stern. Therefore, the swallowed water not only reduces the resistance to the ship during advancing, but also plays a role in driving the ship forwards and becomes the main power for driving the ship to move forwards. Although the water flow pipeline occupies certain space in the lower part inside the ship, the ship obtains the power for moving forwards and accelerates the advancing speed of the ship while reducing the water resistance. Obviously, the advantages far outweigh the disadvantages.

The invention relates to the technical field of ships, and discloses a passenger cabin deck structure and a ship. The passenger cabin deck structure comprises a steel deck, a ceiling and a rock wool board, and no fireproof layer is arranged on the steel deck; the ceiling is arranged below the steel deck; and the rock wool board is arranged on the side, close to the steel deck, of the ceiling, a preset distance is formed between the rock wool board and the steel deck, and an air layer is arranged within the preset distance. The fireproof layer arranged on a steel deck in the prior art is omitted, the fireproof layer cost and the labor cost are reduced, and the weight and the work amount of the steel deck are reduced; and the ceiling is arranged below the steel deck, the rock wool board is arranged above the ceiling, and the rock wool board and the steel deck are arranged at the preset interval, so that it is guaranteed that the rock wool board and the air layer have the good fireproof effect, meanwhile, the ceiling is easy to lay, the rock wool board only needs to be placed on the ceiling, construction operation is easy, and construction cost is low. The labor cost is saved, and meanwhile the shipbuilding period can be guaranteed.

The invention discloses a method used for realizing the integral lifting of marine engineering modules in the marine engineering field. After the module is constructed integrally, the invention makes use of floating cranes, barges and special crane beams to realize the integral lifting of modules on water by regulating the sea gauge of a main hull. Compared with the similar technology, the invention has the following advantages that the preparation of special crane beams can reduce the length of lifting cables so as to enhance the effective lifting height of floating cranes; and the adopting of the floating crane to lift the modules to the barges can avoid the use of a plurality of fittings used for conveying so as to reduce the cost. Simultaneously, the deep water is adopted to moor the main ship so as to ballast the main hull and reduce the height of the freeboard and then the high lifting capability of the floating crane is enhanced and the shipbuilding cost is reduced finally.

The invention discloses a mold frame adjusting seat for boat building. The mold frame adjusting seat comprises an installation seat, wherein the interior of the installation seat is fixedly connectedwith a hydraulic lifting platform, the bottom end of the hydraulic lifting platform is horizontally fixedly provided with a bottom plate, the top end of the hydraulic lifting platform is provided witha top plate, movable rods are alternately arranged between the top plate and the bottom plate, the middle of the top plate is provided with an installation frame, two sides of the installation frameare symmetrically provided with a fixed plate, the inner side of the fixed plate is horizontally provided with a first hydraulic cylinder, one end of the first hydraulic cylinder is connected with anangle adjusting rod, a gear strip is integrally molded on the upper end surface of the angle adjusting rod, a first adjusting gear is arranged above the gear strip, and a second adjusting gear is arranged between the first adjusting gear and the gear strip. By virtue of the angle adjusting rod and the first adjusting gear, the first hydraulic cylinder controls the movement of the angle adjusting rod along the horizontal direction, so that the angle of a supporting rod is changed by virtue of the first adjusting gear engaged with the second adjusting gear, and the adjusting precision can be improved.

The invention discloses a shipbuilding precision control method utilizing unilateral datum, which comprises the following steps that: a datum line is arranged on a datum edge of the unilateral datum from the beginning of a blanking stage, the datum line is from the beginning of butt joint of parts to the end of carrying, and the datum line is used for a long time and is a datum for realizing butt joint line shipbuilding; when a ship body works, all parts are assembled or segmented, lineation is carried out on a unified datum according to the same size, and the lineation is used as a datum which is set for guiding field operation personnel to ensure that a good ship body is manufactured in the assembling and total assembling / carrying stage. Unilateral datum construction application standardization is achieved through design, production, inspection and feedback design improvement, and the construction technology is formed. According to the method, the unified datum of the whole ship is improved, a previous cross curve shipbuilding process method is replaced, the serious phenomenon of the repairing and cutting rate caused by margins existing all around in the past is improved, meanwhile, the repairing and cutting process is moved forwards, the original groove retention rate is increased, the dock tool opening rate is reduced, and cost reduction and gain are achieved.

The invention provides an automatic dredging optimization control system of a trailing suction hopper dredger. The automatic dredging optimization control system comprises a programmable embedded controller (PAC), an intelligent trail operating terminal, an intelligent dredging monitoring interface, a data acquisition module and an output instruction module, wherein the intelligent trail operatingterminal, the intelligent dredging monitoring interface, the data acquisition module and the output instruction module are connected with the PAC. According to the automatic dredging optimization control system, various complex control process sequences can be conveniently and quickly activated by one key through an intelligent control terminal, the overall efficiency of construction operation isimproved, the automatic dredging level is improved, the adaptability of construction to the operation environment is improved, seamless joint and information sharing with an existing trailing suctionhopper dredger control system PLC can be achieved, the mutual interaction switching function also can be completed, operation is flexible, easy and convenient, and the automatic dredging optimizationcontrol system can be used for application demonstration of newly-built ships, upgrading and transformation of old ships and the like, has the wide market application and popularization value, and has very ideal technical effects and practical value for further improving the automation and intelligence levels of an integrated control system of the trailing suction hopper dredger at the same time.

The invention relates to the technical field of shipbuilding, in particular to a method and a ship for stopping flooding of a ship cabin. The method includes filling expandable polystyrene foam filler into the ship cabin. Since the expandable polystyrene foam filler is light and non-absorbable, flooding into the ship cabin is well stopped by the foam filler and the ship cannot sink when the ship cabin is burst and encounters accidents, and finally safety performance of the ship is improved.

The invention relates to the field of shipbuilding technology, and discloses a marine moulding bed adjustment method. The marine moulding bed adjustment method comprises the following steps of: measuring the actual position of a moulding bed supporting post by a total station, converting an electronic design model of a ship segment into a design model under the coordinate system of a moulding bedin a coordinate system converting manner, converting measurement adjustment data into three-dimensional coordinates which the moulding bed supporting post needs to be adjusted to, fitting by directlyusing the design model and measurement adjustment data points, and obtaining the height of the moulding bed supporting post needing to be adjusted through the direct comparison with software. The process is simple in operation; the advance adjustment of the moulding bed supporting post is not necessary; the adjustment efficiency can be greatly improved; and the adjustment accuracy is high.

The invention discloses a processing method for installing a segmented staged rudder trunk. The processing method comprises the steps that S1, reference ground line assignment is conducted; S2, the level of rudder trunk segments is adjusted; S3, the rudder trunk is assembled and welded; S4, a false rudder is assembled and welded; S5, scattered parts are installed. According to the processing method, a conventional assembly stage or rudder trunk installation in a dock stage is brought forward to a segment stage to effectively improve building conditions and labor intensity, and accelerate the installation speed of the rudder trunk, so that the building period of a ship is effectively shortened, and the processing method is capable of greatly improving the installation precision of a shaft and rudder system of the ship to facilitate improvement of the overall level of precision shipbuilding and lean shipbuilding of a shipbuilding enterprise.

The invention discloses a hull overturning device for shipbuilding, which includes an aerial crane, and the aerial crane includes an electric slide rail, and three electric hoists are sequentially arranged under the electric slide rail, and the electric hoist is connected with a hook by winding a rope. An assembly mechanism, the hook assembly mechanism comprising a first hook assembly, a second hook assembly and two third hooks, in an initial stage, wherein the second hook assembly is locked with the two third hooks At the installation ears on the same side of the hull, and the hanging directions of the two are opposite to each other, the said roping is composed of two sub-ropes wound together to form a whole. shape, the second hook assembly includes two second hooks, and the upper ends of the two second hooks are fixedly provided with second hook plates. The present invention relates to the technical field of shipbuilding equipment. The overturning device can ensure that the hull does not need to be stopped for manual decoupling during the overturning process, saving time and effort.