FIELD: ship building.
SUBSTANCE: invention relates to shipbuilding, in particular to drives of ship hoisting devices. Lowering, lifting of the platform of a ship hosting device is carried out by means of a hydraulic drive. Hydraulic drive of the ship hoisting device comprises a plunger hydraulic cylinder with a carriage, a dual pulley for four ropes, and angle pulleys. Drive includes additional plunger hydraulic cylinders with carriages. Four ropes pass through blocks of pulleys located on the carriages of plunger hydraulic cylinders and to the angle pulleys and are fixed by one end to a tensioning device, and by the other to the platform of the hoisting device. Working fluid is supplied simultaneously to all plunger hydraulic cylinders from the pump station, the speed of the platform depends only on the flow rate of hydraulic fluid in all plunger hydraulic cylinders. Operating algorithm of the drive of the ship hosting device is provided by an electric control system.
EFFECT: invention provides the required platform lifting height by installing the required number of plunger hydraulic cylinders.
1 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| SHIP ELEVATOR WITH SINGLE-SCREW DRIVE | 2018 |
|
RU2691561C1 |
| HYDRAULIC JACK FOR RECEPTION-TRANSFER OF LOAD FROM ROPE-WAY | 0 |
|
SU686935A1 |
| 0 |
|
SU337417A1 | |
| SYSTEM OF CARGO TRANSFER BETWEEN SHIPS | 0 |
|
SU935372A1 |
| IMPACT-PROOF SYSTEM FOR TRANSFER OF CARGO BETWEEN SHIPS ON ROUGH SEAS | 0 |
|
SU1030249A1 |
| 0 |
|
SU443827A1 | |
| VERTICAL ROPE SHIP ELEVATOR | 2021 |
|
RU2778183C1 |
| ARRANGEMENT FOR PASSING HIGH-RISE STRUCTURE ON SHIPS UNDER POWER TRANSMISSION OVERHEAD LINES | 0 |
|
SU1082678A1 |
| TOWER CRANE | 0 |
|
SU775043A1 |
| STAIRCASE LIFT FOR INVALID PERSONS | 1997 |
|
RU2116238C1 |
