RU2163878C2 - Ship-raising unit - Google Patents

Abstract

FIELD: performing underwater jobs for raising or lowering objects. SUBSTANCE: proposed unit includes mechanical winch, standing and running blocks of gin tackles, rope reeved between blocks, guides, cargo rope, locks of different heights mounted on extremities of craft, pulleys, carriage mounted between blocks of gin tackles for motion over guides of running block of gin tackles and fasteners of similar strength. Carriage is provided with rollers engaged with respective runs of rope reeved between blocks and unit for securing the carriage to running block of gin tackles. Front wheels of carriage are of larger diameter as compared with rear ones and their axles engaged with locks are located at different heights. EFFECT: increased depth of raising cargoes from water basin bottom. 6 dwg

Description

 The invention relates to the means of ship lifting, performed using floating cranes and other ship-lifting craft (ships, barges, etc.).

 It is known a ship-lifting device located on the deck of a boat and containing a hoisting winch, a fixed and movable guinea blocks, interconnected with a hoisting winch by a rope. The movable unit of guineas is fixed on a trolley that moves on the deck along the guides. The length of movement of the trolley is limited by stoppers installed at a certain distance from the tip of the craft. A cargo cable is fixed to the holder of the movable unit by guineas, passing to the object to be lifted through a deck roll installed at the tip of the craft, see, for example, A.S. USSR N 701081, class B 66 C 23/52, 1981

 The disadvantage of this device is the small depth of its use due to the limited length of movement of the movable unit by guineas on the deck of the craft and the inability to increase this length due to the large load of the deck with other equipment.

 The invention is aimed at increasing the depth of lifting of goods from the bottom of reservoirs and increasing the efficiency of the use of floating cranes and other watercraft.

 The problem is solved in that in the known device comprising a hoist winch, fixed and movable guinea blocks, stoppers, cargo rope, guides, a carriage is installed between the guinea blocks with the possibility of movement along the specified guides, the stops of this carriage mounted on the tip of the craft, and pulleys for interacting with the freight rope installed sequentially at the indicated end, while the movable unit is mounted on rails with the possibility of descent from them. The carriage is equipped with rollers mounted on the axles, interacting with the corresponding branches of the guinea rope, and a unit for mounting guineas to the movable block. The front wheels of the carriage are made of a larger diameter than the rear ones, with the axles of different heights, and the stoppers mounted on the tip of the craft are made different for interaction with the corresponding axes of the carriage. The movable unit of guineas is equipped with a mating part of the carriage attachment unit, and pulleys interacting with the freight rope and different-height stoppers interacting with the axles of the carriage wheels are sequentially installed at the tip of the craft.

New significant features of the proposed device are:
- the presence of a carriage, with the possibility of its attachment to the movable unit by guineas and its movement along the guides of the movable unit by guineas;
- installation of a movable block of guineas on the rails with the possibility of descent from them;
- supplying the carriage with rollers mounted on the axles, interacting with the corresponding branches of the guinea rope;
- the implementation of the front wheels of the carriage of a larger diameter than the rear, with different heights of their axles;
- pulleys sequentially mounted at the tip of the craft and the multi-height stoppers interacting with the respective axles of the carriage wheels.

 Installing a carriage between the guinea blocks allows the guineas to move the movable block overboard. The presence at the carriage of a docking and undocking unit with a movable guineas block and different-height stoppers at the end of the craft interacting with the axles of the carriage wheels makes it possible to lower the guineas moving block to a depth. The interaction of the branches of the rope stored between the blocks with the carriage rollers, and the cargo rope with the pulleys improves the working conditions of the ropes when they are around the tip of the boat.

 In FIG. 1 shows a general view of the device (side view).

 In FIG. 2 shows a top view of the device.

 In FIG. 3 shows a view of the device from the stern.

 In FIG. 4 shows the relative positioning of the elements of the device when lowering the movable unit with guineas to a depth (side view).

 In FIG. 5 shows the relative positioning of the elements of the device when lowering the movable unit with guineas to a depth (top view).

 In FIG. 6 shows the relative position of the elements of the device when lowering the movable unit with guineas to a depth (view from the stern).

 The ship lifting device consists of a fixed unit 1 guineas and moving along the guides 2 of the movable unit 3 guineas mounted on the deck of the boat 4. Between blocks 1 and 3, a rope 5 is stocked, the end of which is fixed to the hoisting winch 6. The carriage 7 also moves along the push rods 2, which can be connected during the movement on the deck of the boat to the guinea block 3 using the docking and undocking unit 8. The carriage 7 is equipped with rollers 9 that interact with the branches of the rope 5. A cargo rope 10 is connected to the movable block 3 of the guinea moving during the descent (ascent) of the object 11 along the pulleys 12 and 13 sequentially mounted on the tip of the boat and at the tip of the boat are also equipped with different height stops 14 and 15, interacting with different-height axles of the wheels of the carriage 6.

 The device is used as follows.

 If it is necessary to raise (lower) the object 11 using the deck hoist of a watercraft, they begin to etch the rope 5 with a lifting winch 6 and, in a known manner, pull out the blocks of guineas, while the carriage 7 moves after the movable block 3 by the guinea using the docking and undocking unit 8. When the carriage reaches 7 of its final position, it rests against the axles of its wheels against different-height stoppers 10, and the movable block 3 guineas, passing over successively mounted pulleys 12 and 13, moves along the guides 2 further until it hangs on the stock ezhdu blocks 1 and 3 guineas rope 5, interacting with the rollers 9 of the carriage 7, and then lowered to a predetermined depth.

 The lifting of the object 11 under water is carried out when the rope 5 is selected by the hoist winch 6. In this case, the guinea block 3 rises from a predetermined depth until it stands on the guides, after which it starts moving along it and pushing the carriage 7 to its final position on the deck of the craft 4 At the same time, the freight rope 10 lies on the pulleys 12 and 13 sequentially installed at the tip of the craft 4 and moves along them.

 Technical appraisal and economic advantages of the proposed device in comparison with the device as. USSR N 701081, adopted as a prototype, lies in the possibility of a significant increase (up to 300 meters) in the depth of lifting of goods from the bottom of reservoirs and increasing the efficiency of the use of floating cranes and other watercraft.

 The invention is at the development stage of a technical proposal. Its implementation does not require a significant amount of research and development. The use of the invention is possible with scheduled overhauls of existing floating cranes.

Claims (1)

 A ship lifting device comprising guineas whose rope is connected to a hoisting winch, guides of the movable guinea block mounted on the deck of the craft, and a cargo rope connected to the guinea movable block, characterized in that it is provided with a carriage mounted between the movable and fixed guinea blocks movement along the specified guides, stoppers of this carriage mounted on the tip of the craft, and pulleys for interacting with the cargo rope mounted sequentially on the indicated extremities, while the movable unit of guineas is mounted on rails with the possibility of disengagement from them, the carriage is equipped with rollers mounted on the axles, interacting with the corresponding branches of the rope of guineas, and a unit for attaching to the movable unit of guineas, and the front wheels of the carriage are made larger than the rear, at different heights of the location of their axes, and these stoppers are made of different heights for interaction with the corresponding axes of the carriage.

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