RU2072938C1 - Device for raising sunken object - Google Patents

Abstract

FIELD: devices for raising sunken objects. SUBSTANCE: device is provided with movable block and fixed block with cargo rope passed between pulleys, double-prong hook mounted on movable block, raising slings with eye-splices for placing them on hook and working pendants detachably connected with eye-splices. Rollers for working pendants are detachably mounted on end-piece of hook which is provided with detachable heads copying the shape of hook prongs and having grooves for respective working pendants located on outer surface of these heads on side of rounding-off of hook prong. EFFECT: enhanced reliability. 4 dwg

Description

 The invention relates to ship-lifting equipment, in particular to devices for lifting sunken objects using floating cranes, crane ships, ship-lifting vessels and barges.

 A device for lifting sunken objects is known, which contains a fixed and movable block, between the pulleys of which a cargo cable is drawn, a two-horn hook mounted on a movable block, ship-lifting slings made with lights for putting on the hook, and working pendants detachably connected with these slings (see N.Yu. Avraamov, “Ship lifting”, L. “Water transport”, 1938, p.2, fig. 63).

 The technical result from the use of the invention is to provide mechanical donning of the lights of the lifting slings on the hook.

 This technical result is achieved by the fact that the device for lifting sunken objects, containing a fixed and movable blocks, between the pulleys of which a cargo cable is drawn, a two-horn hook mounted on a movable block, ship-lifting slings made with lights for putting on the hook, and working pendants are detachable associated with these feet, equipped with removable nozzles on the horn of the hook, rollers mounted with the possibility of removal on the shank of the hook, and installed in the upper parts of the ogre segment inserts, through which x the working pendants are connected with the lifting slings, with each working pendant inserted into the corresponding roller, and each removable nozzle is made in the form of a hook horn and has a groove for the corresponding working pendant located on the outer surface of this nozzle from the rounding of the horn.

 In FIG. 1 shows a General view of the device (without a fixed unit); in FIG. 2 position of the removable nozzle on the "horn" hook, side view; figure 3 and 4 - the technology of work on the hitching of ship-lifting slings on hook.

 A device for lifting a sunken object consists of a fixed block (not shown) mounted on the boom of a watercraft and connected by a cargo cable 1 to a movable block 2. A hook 3 is attached to the movable block 2, on the "horns" 4 of which there are removable nozzles 5 fastened with a tie 6 The nozzles 5 have a groove 7 for the working pendant 8. On the shank of the hook mounted rollers 9 with the possibility of rotation on the axes 10 installed in the brackets 11 of the coupling 12, tightened by bolts 13.

 The device is used as follows.

 Around the hull of the sunken object 14 start ship lifting slings 15 (the latter can be fixed to the solid structure of the object). A diver is lowered to the sunken object, which installs segment inserts 16 in the lights of the slings 15 and the ends of the working pendants 8 are fixed on them. At the same time, the hook is prepared for lifting the object. To do this, install half-clamps 12 on the shank of the hook, fasten them with bolts 12 with the exception of the possibility of turning the half-clamps on the shank. Then the working pendant 8 is started between the brackets 11, the axles 10 are inserted into the rollers 9, after which the axles 10 are fixed in the brackets 11. Then, the nozzles 5 are put on the “horns” 4 of the hook 3 and fastened together with a tie 6, and in the groove 7 of the nozzle 5 stack the working pendant 8. Hook is ready to use. After that, the hook is carried overboard and lowered to the surface of the water. The free ends of the working pendant 8 lead to traction devices (for example, spiers) of the ship. The work of traction devices tightens the working pendants 8 and ship lifting slings 15. Using the tightened working pendants, as along the guides, lower the hook to the depth determined by the lifting project, while the working pendant moves along the groove 7 of the nozzle 5 and under the roller 9, thereby tightening the ogons slings 15 to the "horns" 4 of the hook 3. With further lowering of the hook, the ogons are placed on the "horns" 4, continuing to move, put on them, and segment inserts are protected from folding the lights when the load is applied to the working pendants 16. Departure digging of the sunken object is completed. After that, the work of the hoists of the hoisting mechanism lift the sunken object to the surface.

Claims (1)

 A device for lifting a sunken object, containing a fixed and movable blocks, between the pulleys of which a cargo cable is drawn, a two-horn hook mounted on a movable block, ship-lifting slings made with lights for putting on the hook, and working pendants detachably connected with these slings, characterized in that it is equipped with removable nozzles on the horn of the hook, rollers mounted with the possibility of removal on the shank of the hook, and mounted in the upper parts of the ogre segment inserts, through which the working pendants are connected anes to salvage straps, with each operating pendant wound in the corresponding video clip and each removable attachment is shaped and horn hook has a groove for the respective working pendant disposed on the outer surface of the nozzle by the curvature of the horn.

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