SU70141A1 - Device for lifting ships on slips and descending from them - Google Patents

Description

The present invention relates to devices for lifting and descending on ships for places with slight fluctuations in water level using a ship raising pontoon.

A distinctive feature of the invention is the hinged connection of a pontoon in the form of a parallelogram with supports located at the bottom of a reservoir.

FIG. 1 schematically shows the proposed device in longitudinal section; FIG. 2 shows a device in section along AA. FIG. one.

Metal rigid pontoon 1 with the help of hinges 2 and 3 and racks 4 is connected in a parallelogram type with supports 5, located at the bottom of the reservoir. To interface the pontoon with the slip area, there is a retaining wall or a ramp b. The device operates with compressed air from the air line 7 or by pumping water through the pump.

For the descent of the vessel pontoon. uppermost, 37

given excessive buoyancy, equal to the weight of the descent vessel. In order to avoid spontaneous waste, the pontoon is secured by horizontal slings (not shown) to the overpass through the cannabis block 10. The vessel is pulled onto the pontoon on conveyor carriages, on the upper deck of which paths 8 are provided which continue the conveyor paths. With the help of a low-powered winch installed on the overpass, the pioneer is given an initial advance and then the descent is adjusted by the same winch. When the pontoon begins to move, the BCs open the valves and the pontoon, due to the release of air and instead of water flowing through the clasps or grates 9 in the pontoon, starts to descend, turning around the joints 3 and 3. At the same time, the pontoon keeps horizontal and travels along a specific path. The pontoon descends until the moment the vessel ascends.

To lift the ship on a pontoon

579

set the centering sgoy, Ki. The vessel is centered over the pontoon in the usual way (as well as above the carriages in the slips), and the latter, in a suspended state, is pulled with a winch to the keel of the vessel. Further lifting is performed by connecting the air network and displacing water from the pontoon by air. In the extreme upper position, the pontoon sits on the supports of the overpass, which ensures reliable coupling of the tracks on the pontoon with conveyor tracks. Then, depending on the degree of repair, the vessel or is left to

device, or is transported to the pile site.

The proposed device can work only in places with a slight fluctuation of the water level.

Subject invention

A device for lifting ships to slipy and descending from them, for places with a slight fluctuation of water level, with the application. Lifting pontoon, characterized in that the pontoon is articulated, parallelogram-like, connected to supports located at the bottom of the reservoir.

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