SU482351A1 - Ship heeling device - Google Patents

Description

one

This invention relates to shipbuilding and ship repair.

Equipment for banking a ship is known that contains a ballast roll that is moved by a drive along a guide frame with alternately decreasing free ends, with end stops and shock absorbers made in the form of double action power cylinders, the floating pistons of which are kinematically connected through a cable block system roll-ballast.

The disadvantages of the known devices are the complexity and greater laboriousness of preparing and carrying out the heels, as well as the impossibility of ensuring the autonomy of the heels in conditions of an unequipped water area in the absence of mechanical or electrical energy sources on the vessel.

The purpose of the invention is to ensure the autonomy of the device, automate the process of the roll of the vessel and reduce the complexity of its implementation.

This is achieved by the fact that the drive is equipped with hydraulic jacks, the release valves of which are hydraulically connected to sensors that interact with the ballast roll in its final positions on the guide frame.

On fpg. 1 shows schematically the described device in longitudinal section; in fig. 2 is a section along A-A in FIG. 1. The free ends of frame 1, fitted with end stops 2, are pivotally mounted using crossbars 3 and 4 on working plungers 5 and 6 of hydraulic jacks mounted on the hull of the ship along the sides.

The ballast roll, rolling from one side of the vessel to the other along the guide frame 1 by alternately lowering its ends with the help of plungers 5 and 6, is made in the form of a pole 7, on which removable ballasts 8 are mounted and rollers 9 rotating relative to it.

To eliminate dynamic loads when rolling the ballast roll, the guide frame 1 is provided with shock absorbers, each of

which are made in the form of a double-acting power cylinder 10, the floating piston 11 of which is kinematically connected through the cable-block system 12 to the strand 7 of the ballast roll by means of clamps 13 mounted on the ends of the rod 7. The adjacent cavities B and B of the power hydraulic cylinder 10 of each shock absorber are hydraulically connected between themselves a pipe 14, which is equipped with a throttle valve 15 for bypassing the working fluid from one cavity to

another when moving ballast crush along guide frame 1.

In order to compensate for the movement of the roll-ballast, the cable-block system 12 is made with a chain pulley 16 mounted on the guide frame 1.

In order to automate the roll-over process on the end stops 2 of the frame 1, sensors 17 and 18 are connected hydraulically via flexible hoses 19 and 20 to switches 21 and 22, which are connected to drain valves 23 and 24 of the hydraulic jacks.

The movement of the ballast roll along the guide frame 1 is carried out as follows.

After lifting the guide frame 1 by means of hydraulic jacks, a stopper (not shown in the drawing) is given to the required height, the locking ballast roll on the frame 1 near the end stop 2 from the side of the crosshead 3.

Then, manually opening the drain valve 23 of the hydraulic jack, lower its working plunger 6 and pivotally connected to it with the help of the crosshead 4 end of the frame 1, creating the latter the necessary inclination to roll the ballast roll, then close the drain valve 23. Then open the throttle valve 15, and the roll-ballast under the action of its own weight rolls along frame 1 to the side of the crosspiece 4, thereby moving the piston 11 in the hydraulic cylinder 10 by means of a cable block system 12 due to the transfer of working fluid in it from cavity B to cavity . Krenballasta speed rolling of the frame 1 is controlled by a throttle valve 15. Upon reaching the extreme position, roll-ballast acts on the hydraulic sensor 18, which by means of hydraulic fluid passes through the flexible schlangu pulse 20

pressure on the switch 22. The latter acts on the drain valve 24, opening it, as a result of which the working plunger 5 of the hydraulic

until a slope of frame 1 is created, sufficient to start rolling the ballast roll to the lowered side of frame 1 (towards the crosshead 3). As soon as the inclining ball rolls start, the latter will no longer act on the hydraulic sensor 18, which through the switch 22 will close the drain valve 24 and stop lowering the working plunger 2.

Then the cycle of rolling the ballast roll across frame 1 from one end to the other end will automatically repeat a predetermined number of times.

Subject invention

A device for heeling a ship, comprising a ballast roll, moved by a drive along a guide frame with alternately decreasing free ends, with end stops and shock absorbers made in the form of double action power cylinders, the floating pistons of which are kinematically connected with a roll through the cable-block system - ballast, differing from the fact that, in order to ensure the autonomy of the device, automation

the process of inclining the vessel and reducing its laboriousness; the drive is equipped with hydraulic jacks, the shut-off cranes of which are hydraulically connected to sensors that interact with the crepe-ballast in its final positions on the guide frame.

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