SU757391A1 - Apparatus for cutting hulls of sunken ships - Google Patents

Description

The invention relates to underwater technical work, namely, devices for cutting · the hulls of sunken ships.

Known methods of cutting ship hulls on the part of the electric acid cutting [1]. _five

The disadvantage of this method is the need to comply with a certain ignition temperature, which is difficult to ensure in underwater conditions, as well as the impossibility of cutting non-ferrous metals and special steels. In addition, combustion products pollute the sea.

Closest to the proposed solution is a device containing a cutting organ [2].

A disadvantage of said device za- ¹⁵ lies in the fact that the use of anchor chains requires significant effort on the power set of punching elements vessel due to the relatively large area of the chain links in the plane per- ₂ of the cutting plane are perpendicular. Steel cables partly eliminate this disadvantage, however, the individual cables are subject to chafing about the sharp edges of the cable being torn.

2

metal and therefore prone to rupture.

The purpose of the invention is to ensure the initial orientation of the device under water.

This goal is achieved by the fact that the cutting body is made in the form of a lamellar chain with cutters placed between the paired plates and floating vessels connected in pairs with each other by movable brackets. In addition, in order to facilitate the removal of the cutting element from under the hull of the vessel, the brackets with floating vessels are interconnected by a flexible connection.

In addition, the cutters are double-sided in the form of pointed rollers.

FIG. 1 - device with cutting bodies, made in the form of a cutter, side view; in fig. 2 - the same, top view; in fig. 3 - section A — A in FIG. one; in fig. 4 - section B — B in FIG. 1 (with a view of the bracket and. -Fluid containers); in fig. 5 is a longitudinal section of a part of the device with a cutting body, made in the form of a roller; in fig. 6 — section B — B in FIG. five; in fig. 7 is a diagram of the operation of the device.

757391

The device for cutting hulls of sunken ships into bulk sections is a plate chain consisting of intermediate 1 and paired 2 plates. The plates are successively interconnected by fingers 3. The cutting bodies are fixed movably (also by means of fingers) between the paired plates, made in the form of double-sided cutters 4 or tapered rollers 5 of a material of increased hardness compared to the structural steel being cut. The intermediate plates are equipped with sliding brackets 6 carrying floating vessels 7. The brackets are fixed in the groove of the plates with set screws 8. The brackets together with the floating tanks are interconnected by a flexible cable-cable 9, with which they can be easily removed from under the hull of the sunken ship.

The device works as follows.

A lamellar chain 11 is set up in a tunnel 10 previously worked out under a sunken ship with the help of a conductor made of steel (the length of the lamellar chain should be 3-5 m longer than the width of the dissected vessel) assembled with arc-shaped brackets carrying floating vessels. The ends of the lamellar chain are connected to the nuts of the floating crane 12 by means of steel straps 13. The floating tanks orient the cutting bodies in the position required for operation.

Alternating tension slings floating crane provides reciprocating movement of the device with a stroke of 1.5-2 m with simultaneous pressing it to the surface of the dissected object. In this case, the cutting bodies, going deep, cut through the outer casing, rising up, cut all the details of the ship's kit from the bottom to the upper deck.

As the cutting bodies deepen into the body being cut, the floating vessels together with the brackets move along the groove, coming out of contact with the intermediate plate and released, remaining submerged under the bottom of the dissected vessel.

When cutting bodies are used in the form of double-sided cutters, the cutting width is provided by the configuration of cutting edges, and the alternate operation of each side of the cutter, depending on the direction of travel, is ensured by movable fastening of the cutter between the plates.

When using cutting bodies in the form of rollers with the aim of facilitating the entry of paired plates, into the groove formed by a slit, bevels are made on them in the upper part.

Technical and economic efficiency of the proposed device is a higher cutting performance compared with the electric acid cutting; preservation of the purity of the external environment, which is usually contaminated by the combustion products during the electric acid cutting; the possibility of using floating cranes of lesser carrying capacity compared to cutting with floating cranes and anchor chains; repeated use of the device compared to cutting steel cables.

Claims (4)

Claim 1. Device for cutting hulls of sunken vessels into volumetric sections containing a cutting organ, characterized in that, in order to ensure the initial orientation of the device under water, the cutting organ is made in the form of a plate chain with cutters placed between the paired plates and floating vessels connected in pairs between a sliding brackets. 2. Device by π. 1, characterized in that, in order to facilitate the removal of the cutting member from under the hull of the vessel, the brackets with floating vessels are interconnected by a flexible link. 3. Device by π. 1, characterized in that the incisors are double-sided. 4. Device by π. 1, characterized in that the cutters are made in the form of pointed rollers.