| 摘要 |
The invention relates to apparatuses for underwater works, namely to the technical means for raising sunken and other objects from the bottom of seas and oceans. The disclosed autonomous deepwater lifting device comprises a rigid inflatable shell with sea inlets at the bottom and a gas generator located below its level and open to the atmosphere by lower section, said gas generator operates with hydroreactive substances. The cavity of a gas generator is connected to a cavity of shell using a pipe that in the upper part has normally closed valves of the system of startup of the gas generator. Through the inflatable shell and gas generator coaxially with the pipe a vertical hawse with a guide rope passes for descent of the device to a sunken objet located therein and a cargo rope that is attached to the guide. A hawse at the level of sea inlets of a shell has longitudinal through windows and first linkage mechanism of the system of gas generator startup, whose ends of some lever arms pass through the windows into the inner cavity of hawse and opposite arms are connected by rods with valves of the startup system of gas generator. On a cargo rope in the point of its connection with a guide rope the second linkage of the 1kind of the startup system of gas generator is secured, whose two or more levers are mounted on a vertical cylindrical housing. The upper lever arms of this mechanism by means of spring are pressed against the housing and have a transverse dimension smaller than the inner diameter of hawse, and the lower arms are displaced from the housing, have the transverse dimension greater than the diameter of hawse and end with horizontal heels in the form, for example, of an annular sector or segment. The second linkage of the startup system of gas generator in its upper, relative to the device, position after passage through the hawse and gas generator startup acts as a stop, wherein the device rests by its upper part of the inflatable shell into pulled apart in the heels of lower lever arms of this mechanism. Below levers of the first mechanism of the startup system of gas generator, which extend into the inner cavity of hawse, a centering mechanism of the guide rope is located, which consists of two prisms with a beveled lower surface. The prisms radially protrude inward the hawse including the guide rope and are placed in a spring-loaded state in housings being external relative to the hawse. The autonomous deepwater lifting device allows its autonomous descent to a sunken object, automatic startup of its generator and generator and autonomous lifting of the object that can significantly reduce economic and material costs, improve reliability of lifting operations, significantly increase the load capacity of the device and ensure lifting operations on almost all depths of the World ocean. |
