SU439438A1 - Device for transferring goods between ships - Google Patents

Description

one

Devices are known for transferring goods between ships on the move at sea, consisting of a carrying rope tensioned between ships, a winch with a sleight drive, ensuring the maintenance of a constant tension of the carrying rope, a cargo trolley, visited by a carrying rope, a haul rope, connected with a cargo trolley, and winches, providing movement of the cargo trolley.

However, in the known devices, to ensure a constant tension on the carrying rope, expensive winches with a traction drive and a complicated electrical control system are used. In addition, these devices do not allow the transfer of heavy loads from a supply vessel to ships with a displacement of less than 3,000 tons.

The purpose of the invention is to simplify the means of tensioning the carrying rope and reduce the cost of the device. To do this, on one shaft of the rope, the cable through the block and the cable stop on the supply vessel, the hydrodynamic drag, for example, the hydrodynamic wing, and the other end of the carrier cable are fixed on the receiving vessel.

In addition, for the purpose of additional damping of the instantaneous stresses in the non-stem cable, it is passed through a dynamic load compensator, for example, through a chain hoist.

FIG. 1 shows a scheme of tensioning a carrier rope between vessels proceeding in a parallel course (top view); FIG. 2 - 5 the same between ships going

in wake (top view).

The device for transferring cargo between vessels includes a carrier KAIAT 1, fixed at one end on the cargo receiving vessel at point 2, the dynamic load compensator 3, the bracket with block 4, hydrodynamic resistance 5, the fastener at the free end of the carrier cable, and the cable stopper 6 A carriage rope between vessels of cargo, cargo truck trolley 7 with the ends of a haul rope attached to it (not shown in the figures).

The dynamic dynamic resistance is calculated in such a way that the magnitude of its resistance to the oncoming flow of water determines the constant tension of the carrying cable, taking into account the suspended load.

A device for transferring cargo between ships operates as follows. 5 When transferring goods by the traverse method (see Fig. 1), the vessels participating in the transfer, going parallel to the course, approach each other by a distance close to the worker and equalize their speed. Overboard the supply vessel, the flow resistance is 5,

attached to the free end of the carrier cable 1, and, removing the carrier cable through the stopper 6, the output t hydrodynamic resistance to the underwater towing position. After that, the carrier cable is fixed with a stopper 6- The ships descend a distance shorter than the worker, and on the receiving vessel at point 2 the end of the carrying cable fed from the supply vessel is fastened. After securing the end of the carrier cable to the receiving vessel, the slack in the carrier cable is selected by releasing the stopper 6, as the carrier cable is drawn under the influence of the towed hydrodynamic resistance. Both vessels are diverted to the required working distance and further work on the transfer of cargo is done in the usual manner.

When tilting ships on a wave in different directions or when they are dodging from a parallel course, critical stresses in the carrying cable do not arise, as the towed resistance 5 extinguishes them, pushing the supply vessel, and the carrying rope freely slides along block 4.

In case of accidental deviation of vessels from the course towards approaching or when the wave is tilted towards each other, no sagging of the carrying cable is formed, since the weakening of the tension in it is extinguished by the same towed hydrodynamic resistance that moves away from the supply vessel, pulling it along the block through itself. 4 slack iesushenogo rope.

The instantaneous dynamic stresses arising in the carrier cable can be damped by a compensating device 3.

When cargo is transferred between vessels by wake (see Fig. 2), the supply vessel overtakes the receiving vessel and enters its wake. The speeds of both vessels are equalized when they are at a distance somewhat shorter than the worker. At this moment, with the stopper 6 clamped, the hydrodynamic drag towing and the transfer of the second end of the carrying cable to the receiving vessel begin. After securing the end of the carrying rope to the receiving vessel, the stopper is released and the carrying cable is pulled by the towed drag 5. Then all the processes proceed as described above.

Subject invention

Claims (2)

1. A device for transferring goods between ships to sea on the move, including a carrying cable that is tensioned between ships, and means for tensioning the carrier cable, characterized in that, in order to simplify the means of carrying the carrier cable and reduce the cost of the device, one end of the carrier cable, passed through the block and the cable stop on the supply vessel, is fixed underwater hydrodynamic resistance, e.g. hydrodynamic wing, and the other end of rope secured on the receiving vessel. 2. The device according to claim 1, characterized in that, in order to supplement the instantaneous nanometers in the carrying cable, it is transmitted through a compensator of dynamic pagru5 -chow, for example through a nolispast. Phie L fuz g