The world's largest crane ship that can fit a small town on its deck

Vessel A vessel is a floating device for movement and transportation by water and for performing special tasks. The characteristics of the vessel expresses its operational and technical data: speed, cruising range, carrying capacity, capacity, autonomy,

Vessel

A vessel carrying a crane structure designed to perform specialized lifting operations, including installation, underwater, pipe-laying, etc...."

Source:

Decree of Rostransnadzor dated March 24, 2005 N AN-57-r (fs) "On improving the organization of licensing the activities of legal entities and individual entrepreneurs in the field of transport"

Official terminology. Akademik.ru. 2012 .

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The invention relates to floating lifting structures used for work with heavy objects. SUBSTANCE: crane vessel contains a body with load-lifting boom devices with counterweights installed on it. The ship's hull is equipped with ballast keels placed in the centerboard wells located in the ship's diametrical plane. Ballast keels are lowered to the lower position when lifting heavy objects, lowering the vessel's center of gravity and increasing its stability with a limited hull width. The ballast keels are made hollow in the upper part with the possibility of filling them with ballast water, and in the lower part - in the form of a massive cast-iron bulb, in the transport position sunk in the centerboard well to the level of the main plane of the ship, which reduces the draft of the ship. Lifting of heavy objects to a great height in the presence of wind is ensured while maintaining the stability of the vessel. 1 z.p. f-ly, 4 ill.

Drawings to the RF patent 2524411

The invention relates to floating lifting structures used for ship lifting and other work with heavy objects.

Known floating cranes of large capacity, which include a floating base and installed on it boom lifting device with counterweights, having a hull width of 25-33 m (Handbook of cranes, vol. 2, Engineering, 1988), which does not allow their use on inland waterways with limited dimensions. Also known: a floating crane of large capacity (patent RU 2258026 C2, IPC B66C 23/53) and a floating lifting device of large capacity (patent RU 2320529 C1, IPC V66C 23/52), the lifting devices of which are balanced with the help of an external counterweight on the auxiliary boom variable reach, allowing you to have a hull width suitable for work on inland waterways. However, the lifting of super-heavy and large-sized products still has certain limitations, depending on the wind load and the metacentric height of the vessel.

These limitations are largely removed in the present invention.

A distinctive feature of the invention is that several ballast keels descending with the help of drives are installed in the hull of the crane vessel, placed in the centerboard wells, located in the diametrical plane, occupying the upper position at the passages of the vessel and lowering to the lower position when lifting heavy products. This lowers the vessel's center of gravity and provides the necessary stability in appropriate operating conditions with a limited hull width. The lowering keels are hollow in the upper part with the possibility of filling with ballast water and are additional ballast tanks used for centering and increasing the stability of the vessel. In the lower part, the descending keels are made in the form of cast-iron massive bulbs, recessed in the centerboard wells to the level of the main plane of the vessel in the transport position, reducing its draft.

The aim of the invention is to create floating lifting means - crane ships for lifting ships and other heavy and large-sized objects that have the necessary stability in appropriate operating conditions with a limited hull width.

The implementation of the invention will expand the operational and technical capabilities of the known floating lifting means, allowing you to lift heavy bulky products to a great height in the presence of wind, while maintaining the necessary stability of the vessel.

This technical result is achieved by installing several lowering ballast keels in the vessel's hull, which lower the vessel's center of gravity and ensure its stability in appropriate operating conditions.

Figure 1 and 2 shows a crane vessel in the working position (figure 1 - front view, figure 2 - cross section of the hull), figure 3 and 4 - in transport position (figure 3 - side view, figure 4 - cross section of the body).

On the hull 1 of the crane vessel, boom lifting devices 2 are installed, which together carry out the lifting of heavy products. In the body 1, centerboard wells 3 are installed in the diametrical plane, in which ballast keels 4 descending with the help of drives are placed. The upper edge of the centerboard wells is located at the level of the deck of the vessel, which excludes the ingress of outboard water into the hull at any draft and any inclination. The upper part of the descending keels 4 is made in the form of a space box with the necessary reinforcements, forming a container 5, which can be filled with outboard water. These tanks are additional ballast tanks used to center the ship and increase its stability. The lower part of the descending ballast keels 4 is made in the form of a massive cast-iron bulb 6. The ballast keels 4 move up and down in the centerboard wells 3 along the guide rails or rollers 7 (similar to crane telescopic booms) using drives 8 (winches or hydraulic cylinders).

When a crane vessel is used to lift heavy objects, the ballast keels 4 are lowered to the lowest position (FIGS. 1 and 2). The container 5 in the upper part of the keels 4 is filled with ballast outboard water. At the same time, the center of gravity of the crane vessel is significantly reduced and, accordingly, its stability increases. In the transport position, when the crane vessel moves to a new place of work, the ballast keels 4 are raised to the uppermost position of figures 3 and 4), while the cast-iron bulbs 6 are recessed in the centerboard well 3 flush with the main plane of the vessel hull 1, reducing its draft. Excess water in the ballast keels can be pumped out if it is not required for the longitudinal trim of the vessel.

CLAIM

1. Crane ship - a floating hoisting facility of large capacity, including the hull of the ship and the lifting boom devices installed on it with counterweights, characterized in that the hull of the ship is equipped with several ballast keels placed in the centerboard wells located in the centreline of the ship, which are lowered with the help of drives to the lower position when lifting heavy objects, lowering the center of gravity of the vessel and providing the necessary stability with a limited hull width.

2. Crane vessel according to claim 1, characterized in that the lowering ballast keels are made hollow in the upper part with the possibility of filling with ballast water and are additional ballast tanks, and in the lower part - in the form of a massive cast-iron bulb, in the transport position recessed in the centerboard well to the level of the main plane of the vessel, which reduces its draft.

Usage: cargo transshipment at sea. The essence of the invention: the crane vessel contains two underwater hulls 1, connected by columns 2 with the upper structure 3, on the lower deck 5 of which are installed follow-up winches 6 with hooks passed through the deck 5 on cables 23. On the midsection of the inner sides 8 of the columns 2, fixing shields 9 are mounted, through hinges connected to the working rods in columns 2. Shields 9 have elastic coatings on the outside, elastic tight sleeves between shields 9 and columns 2. hulls 1, cables 23 with hooks 7 are lowered onto load 21, where they are slinged and with the help of winches 6, load 21 rises to deck 5, after which winches 6 are braked. Then, with the help of hydraulic cylinders, the shields 9 are pressed against the load 21 and fixed. After the ship has moved to the construction point in reverse order, the shields 9 are retracted into the columns 2, and the super-heavyweight 21 is lowered to the desired location. The divers fix and secure the cargo 21 and release the hooks 7, after which the ship returns to the port. The functionality of the crane vessel has been expanded, and the carrying capacity and reliability have been increased. 5 ill.

The invention relates to shipbuilding, and in particular to the design of crane ships. Known semi-submersible crane vessel containing a solid underwater body connected by columns with the topside, which is mounted full-revolving crane. However, such a crane vessel cannot receive cargo under the topside and has limited functionality. Known semi-submersible crane vessel containing two underwater hull connected by columns with the topside, which is mounted two full-revolving crane. However, such a crane vessel has limited functionality and low carrying capacity, since it cannot receive cargo under the topside. The purpose of the invention is to expand the functionality and increase the carrying capacity and reliability of the crane vessel. This is achieved due to the fact that servo winches are installed on the lower reinforced deck of the upper structure of the crane vessel, the cables and hooks of which are passed through the specified deck, the inner sides of the solid columns are made sheer and equipped amidships with locking shields pivotally connected to rods hermetically located in the columns and through springs in cages connected to movable plates, which are connected to the rods of hydraulic cylinders, fastened through hinges to the columns, and the shields have an elastic coating, spring-loaded at the hinge points between the rods and the shields and are provided with oil and petrol resistant elastic tight sleeves between these shields and columns. Since the lower deck of the upper structure is reinforced, it will be able to absorb the forces from the load suspended from it. Since the following winches are installed on the lower deck of the superstructure, cables and hooks are passed through this deck, loads can be lifted under the superstructure with the help of these winches. Since many winches are installed on the lower deck of the upper structure, with the help of the latter, the crane ship can receive super-heavyweights and the reliability of the vessel will be high, since the failure of one or two winches with a known power factor will in no way affect the carrying capacity of the crane ship. Since the inner sides of the solid columns are made sheer, large-sized cargo can be lifted between these sides to the topside and the functionality of the crane vessel will be expanded. Since the inner sides of the solid columns are equipped with fixing shields amidships, large loads lifted to the topsides can be securely fixed from swinging at the ship's passages during rolling and the loads will not damage the ship. Since the shields are pivotally connected to their rods, these shields can fix loads of any configuration. Since the shield rods are hermetically located in the columns, the rods will not corrode, and water will not get into the columns. Since the shield rods are connected through springs to movable plates, these rods with shields can absorb the impact of loads on the shields. Since the springs of the rods are enclosed in cages, these springs will not warp under loads. Since the movable plates are connected to the rods of the hydraulic cylinders, with the help of the latter, the shields with their rods can be given any position within certain limits. Since the hydraulic cylinders are fastened to the columns through hinges, slight vibrations of the hydraulic cylinders do not lead to their breakage. Since the shields on the outside have an elastic coating, the loads will not spoil these shields. Since the shields are spring-loaded at the hinges between the rods and the shields, the latter will not fall off and will be maintained in a vertical position all the time. Since elastic sealed sleeves are mounted between the shields and columns, covering the rods of the shields, these rods will not corrode. In FIG. 1 is a schematic representation of a crane vessel at the time of lifting the super heavyweight from the berth to the topsides; in fig. 2 the same, at the time of installation of the hydraulic structure; in fig. 3 the same, during the transition with the cargo fixed under the superstructure; in fig. 4 node I in FIG. 1; in fig. 5 node II in FIG. 4. The crane vessel contains two underwater hulls 1 connected by solid columns 2 with the topside 3, on which two full-revolving cranes 4 are mounted. On the lower reinforced deck 5 of the topside 3, tracking winches 6 are installed, the hooks 7 of which are passed through the deck 5. Amidships internal sheer sides 8 of columns 2 are mounted locking shields 9, through the hinges 10 connected to the working rods 11, hermetically located in the columns 2 and through the springs 12 in the clips 13, connected to the movable plates 14, fastened to the rods 15 of the hydraulic cylinders 16, connected by hinges 17 with columns 2 and connected to the ship's equal pressure hydraulic system (not shown). The shields 9 on the outside have an elastic coating 18 and in the places of the hinges 10 springs 19 and elastic, sealed oil and petrol resistant sleeves 20 between the shields 9 and columns 2. The crane ship operates as follows. If necessary, transfer the super-heavyweight 21 from berth 22, where it was built, to the construction site of the hydraulic structure, the crane ship approaches cargo 21, passing berth 22 between hulls 1, stops over cargo 21, winches 6 are switched on to lower cables 23 and hooks 7, slingers the load 21 is slinged and the tracking winches 6 are switched on for lifting. If one or two winches 6 do not work, then the rest are adjusted for a greater tracking force within the power reserve and the load 21 still rises to deck 5, after which the winches 6 are put on the brakes. Then liquid is supplied to the hydraulic cylinders 16 so that their rods 15 are retracted. At the same time, the movable plates 14 through the springs 12 in the cages 13 push the working rods 11 out of the columns 2, and with them the fixing shields 9 are pushed out, first straightening and then slightly stretching the sealed sleeves 20. The shields 9 abut their elastic coatings 18 against the load 21 and it is securely fixed both from the side and from the pitching of the crane vessel, given that the pitching of these vessels is insignificant, and the hydraulic cylinders 16 are placed on known hydraulic locks. In this case, the springs 19 do not allow the free shields 9 to fall, and the springs 12 dampen slight fluctuations of the load 21. After the crane vessel arrives at the construction site, it is positioned by known methods (anchors or dynamic positioning), the fixing shields 9 are retracted into columns 2 in reverse order, winches 6 are released, switched on to the follow mode and etch the cables 23 with the super heavyweight 21 on the hooks 7. The divers fix and fasten the load 21 on the hydraulic structure and release the hooks 7, which, by turning on the winches 6 to select the cables 23, rise to the deck 5 of the upper structure 3. Small cargo from the upper deck (not shown) of the crane ship is reloaded by cranes 4. Upon completion of the work, the crane ship is removed from the construction site and returned to the port. The functionality of the proposed crane vessel has been expanded, since it can not only receive cargo on the upper deck, but also hang super-heavyweights under the superstructure, as well as lift sunken small and medium-sized vessels. The proposed crane vessel has an increased carrying capacity, since the total carrying capacity of the tracking winches in the superstructure can significantly exceed the lifting capacity of the cranes. The proposed crane ship has increased reliability, since the failure of one or two out of fifteen or twenty cargo winches does not affect the load capacity of the crane ship. The proposed vessel, in contrast to the known one, has expanded functionality, since it can accept cargoes under the topside, increased carrying capacity, since the total lifting force of the tracking winches in the topside far exceeds the load capacity of cranes, increased reliability, since the failure of one or two out of fifteen or twenty cargo winches does not affect the carrying capacity of the crane vessel.

Claim

CRANE SHIP, containing two underwater hulls connected by solid columns with the upper two-deck structure, and two full-turn cranes installed on the upper deck of the upper structure, characterized in that it is equipped with tracking winches installed on the lower, reinforced deck of the upper structure, movable plates placed in columns made with sheer inner walls, hydraulic cylinders pivotally mounted in the columns, each of which is connected by its rod to the corresponding movable plate, working rods, partially and hermetically located in the columns, each of which is spring-loaded by its first end relative to the corresponding movable plate by means of a spring located in the holder, fixing shields, each of which is hinged at the second end of the working rod corresponding to it and spring-loaded relative to the latter in the zone of its hinge with the possibility of the shield being located amidships of the vessel, and elastic sealed r shackles, each of which is installed between the shield and the column corresponding to it, while the cables and hooks of the servo winches are passed through the lower reinforced deck of the upper structure, and each fixing shield is made from the outer surface with an elastic coating for contact with the load lifted by the servo winches.

MM4A Early termination of a patent of the Russian Federation for an invention due to non-payment of the fee for maintaining the patent in force by the due date

The world is waiting for the largest crane ship in the history of shipbuilding, on the deck of which a provincial town can easily be accommodated. Its main purpose is the installation and transportation of oil platforms and the laying of pipelines on the seabed.

For those who go to the open sea not to work, but to relax - our review of.