SU755680A1 - Apparatus for lifting sunk floating means - Google Patents

Description

The invention relates to the field of ship lifting.

A device for lifting sunken floating equipment is known, equipped with a winch hoist, a bridge crane located between the bow and stern superstructures, and a specially free-floating hoist located in the hull. | θ space, carrying out the descent and lifting of auxiliary devices from the sea surface, the weight of which ke exceeds several tens of tons [1}.

The specified device is not able to not only raise an emergency submarine to the sea surface, but also to give it the necessary position for ascent and docking with the rescue vehicle, for example, put 20 on an even keel for auxiliary ascent, since the boat may be in an accident in any position from vertical inverted to stuck between underwater rocks 25.

The closest technical solution to the invention of the known is a device for lifting over, sinking floating means, containing hydraulic lifts, portals, fixedly attached to the hull, and a device for capturing (D.

The disadvantage of this device is that the ropes are subject to abrasion and tension, which cannot be controlled and compensated along all lifting lines with a single-unit winch, and the use of a steel cable is limited by the depth of the lift.

The aim of the invention is to improve the performance of the device.

This goal is achieved by the fact that the proposed device is equipped with shafts, movable columns, inside which there are hollow sections with heads, telescopically connected to each other, and support locks with control hydraulic cylinders,. moreover, the support locks interact with the heads of the sections, while one of the support locks is installed on the lower end of the movable column, and the other on the end of the shaft bottom.

Figure 1 shows the proposed device, a General view; in FIG. 2 is the same side view (version of the load gripping hydraulic clamping mechanism at the time of capture of the emergency facility at the bottom of the sea and in the transport position); in FIG. 3 - node T in FIG. 1 in the starting position; in FIG. 4 node I in FIG. 1 after the first stroke of the column; in FIG. 5 - nodeC in figure 4.

The device comprises a movable column 1, which is installed by means of hydraulic lifts 2 in a portal 3, fixedly attached to the hull of the vessel 4. Column .1 by means of racks 5 is equipped with a technological platform 6 with centralizer 7.

At the lower end 8 of column 1 there is a support lock 9 with a control cylinder 10 and a centralizer 11.

A window in the form of a shaft 12 is made along the axis of movement of the column 1 between the portal 3 and the bottom of the vessel, at the lower end 13 of which there is a support lock 14 with a control cylinder 15 and a centralizer 16. To fix the positions and control the operation of the column 1 and support locks 9 and 14 limit switches and electric sensors 17-20 are installed.

A device for lifting sunken objects is made in the form of neutral buoyancy sections 21 arranged inside the column 1, which are equipped with an upper head 22 with a stopper 23 and a lower head 24. Sections 21 are telescopically connected to each other by means of a coupling 25.

A cable 26 with a disconnecting device 27 is passed along the axis of section 21. The lower section 21 is connected via a sleeve 25 to an adapter 28 to which it is pivotally suspended. a cargo hook 29 or other gripping mechanism 30 for lifting a sunken object 31.

The cargo hook 29, depending on the depth, may be provided with flexible 'ties, for example a rope.

The device works as follows.

The device is provided with three sections 21. The middle section 21 is supported by the lower end 24 on the locked upper lock 9. The lower lock 14 is in the open position. From this position, the first working stroke of the column 1 is made by an amount of b equal to the length of one section 21. When the head 22 approaches the lock 14, the sensor 17 gives a command to block it ahead of the telescopic gap value <P. After the lock 14 takes the load of the head 22, the upper lock 9 is opened by the signal of the sensor 18. Next, the column 1 makes an idle move up by the value of K for the next section 21. At the end of the stroke, the sensor 20 gives a command to lock the lock. 9 for coupling housing 25 ahead of the value. After the lock 9 takes the load of the head 24, the lower lock 14 is opened by the signal of the sensor 19. Next, the cycle repeats.

The extension and lowering of the sections 21 continues until the hook 29 reaches the sunken object 31, after which it is lifted using the gripper 30. In this case, the operation of locks 9 and 14 is carried out in the reverse order.

Using the proposed invention will allow to lift large-sized objects from the bottom of the sea of great depth, to increase the reliability of rescue. Crews of emergency submarines, as well as to create reliable technical rescue systems and designs of special powerful lifting devices for rescue vessels.

Claims (1)

Claim A device for lifting sunken floating equipment, containing hydraulic lifts, portals fixedly attached to the hull of the vessel, and a gripping device, characterized in that, in order to improve the operational properties of the device, it is equipped with shafts ;, movable columns, inside which hollow sections with heads are placed interconnected telescopically, and support locks with control hydraulic cylinders, and support locks interact with the heads of the sections, while one of the support locks is mounted on the bottom the end of the movable column, and the other at the end of the bottom of the shaft.