RU2532290C1 - Ovchinnikov's salvage buoy - Google Patents

Abstract

FIELD: transport.

SUBSTANCE: invention relates to ship building, particularly, to design of submarine salvage device. Salvage buoy is placed in superstructure trunk level with submarine deck to surface radio transmitter after disengagement from submarine body. Radio transmitter antenna is arranged at buoy lower bottom. Resilient weight is secured to larger top bottom to develop overturning moment to set said buoy to working position after surfacing.

EFFECT: higher reliability of surfacing, ruled out loss of the buoy.

2 dwg

Description

The invention relates to shipbuilding, and in particular to the design of a rescue device of a submarine.

Known emergency buoy [1], which is part of the emergency rescue device of the submarine. The buoy is installed in the superstructure of the submarine and serves to signal in the emergency position of the ship. In an emergency, the crew gives inside the strong hull an alarm buoy mount, the buoy pops up, bringing signal fire and a telephone to the surface for communication with the ship.

The emergency buoy may not have cable connection with the submarine [2]. Then, a radio transmitter is mounted in it, which, when the buoy emerges, encodes a radio signal about the accident, after which the buoy self-destructs. Such an emergency buoy design may have a manual and automatic buoy recoil drive.

At a high submarine speed of the submarine, due to the hydrodynamic effect of the free stream, a buoy protruding above the deck of the submarine, low-frequency oscillations occur, turning into flutter. This creates problems attaching the emergency buoy to the hull of the submarine, leading to the loss of the buoy at sea or to the impossibility of its emergency ascent [2].

A known construction of a non-protruding emergency signal buoy [3], which is connected to the hull of a submarine by a cable cable. After the attachment returns, the emergency buoy from the inside of the submarine leaves the mine, begins to ascend, tipping over into the working position. Surfacing, the emergency buoy brings to the surface a signal light and a telephone for communication with the sunken submarine, located inside the sealed cavity of the emergency signal buoy. The use of an alarm buoy of this design on a submarine having a significant limiting depth of immersion (600 meters in the nuclear submarine of Project 967, Bars) is problematic. Firstly, a buoy cannot pull a cable from such a depth. Secondly, it’s almost impossible to detect the signal light of such a buoy in the theater of action of a submarine, equipping it with a radio station to give a signal that identifies the ship and gives the coordinates of the accident is more efficient.

The objective of the invention is to create a design emergency buoy, eliminating its loss, due to the elimination of the causes of fluctuations. The problem is solved in that the buoy of the proposed design does not experience the impact of the flow running on the submarine’s hull, therefore, it does not vibrate, as a result of which the towing resistance and noise of the submarine are reduced, and the emergency buoy cannot be lost.

The emergency buoy, figure 1, is an impenetrable strong structure, designed for maximum immersion depth, based on the housing 1 and having positive buoyancy. A radio-permeable radome 2 of the radio transmitter is mounted on the lower bottom of the housing. The hull 1 of the emergency buoy has the shape of a truncated cone, which is necessary for its free exit from the shaft 3, located in the superstructure between the sturdy hull of the submarine 4 and the deck of the light hull 5. The emergency buoy in the stowed position is installed in the shaft 3 and through a rigid rod 6 it is fixed to the strong hull of the submarine with a recoil actuator 7 mounted on top in the skin of the robust hull 4. The standard design of the recoil actuator 7, used on all submarines, is such that when opening the grips about actuating the actuator 7 from inside the submarine it through the rigid rod 6 pushes the emergency signal buoy with its seat in the shaft 3.

An acoustic cover 9 of the same design as on the entire light hull of the submarine is applied on the upper bottom 8 of the alarm buoy. The seat of the support flange of the alarm buoy is located in height so that the surface of the acoustic coating of the 9 buoy is inland with the acoustic coating of the upper deck 5. In the center of the upper bottom 8 of the ASB there is a butt 10 to which a steel rope 11 is attached, which is a flexible load. In the acoustic cover 9 of the ASB there is a groove 12 located in the diametrical plane of the ship or parallel to it, if the ASB mine is structurally shifted to the side of the submarine. A part of the steel rope 11 is laid in the groove 12, and the rest of its large part is laid in the bay 13 at the bottom of the shaft 3. The groove 12, together with the part of the steel rope 11, is sealed with an anti-acoustic coating 9.

The rigid rod 6 is attached to the housing 1 of the emergency buoy on hinges 14. The rigid rod also includes a connection 15 with a blasting cartridge, the operation of which is controlled by a hydrostat.

The emergency buoy of a submarine operates as follows.

The steel rope 11 is laid in the bay 13 at the bottom of the shaft 3. Then, the equipped buoy is installed in the shaft 3, its upper bottom, taking into account the thickness of the acoustic coating 9, becomes at the level of the outer surface of the acoustic coating 16 of the upper deck 5. The head of the rigid rod 6 is inserted into the captures of the recoil drive 7 and is clamped, while pulling and holding the emergency buoy in the mine 3. For the convenience of the plant, the heads of rigid traction 6 are provided with openings in the grips of the recoil drive 7 of the emergency buoy in the walls of the mine 3.

The emergency buoy can be returned in case of an alarm if necessary in two ways. The first method: manually rotating the flywheel of the actuator 7 from the inside of a sturdy housing. When the drive grips are opened, the drive pushes the emergency buoy from the seat, then the buoy leaves the shaft 3 by the action of buoyancy forces, pulling the rope 11, which serves as a flexible load. Then, under the influence of the overturning moment created by the weight of the cover 9 and the rope 11, the emergency buoy unfolds. Under the action of the weight of the rope 11, its upper part breaks out of the groove 12, the buoy turns 180 ° and finally floats to the surface for the emergency radio signal, Fig.2.

The second way: the emergency buoy is given automatically. When the submarine is submerged to a depth greater than the maximum permissible, the hydrostat included in the rigid rod 6 causes the blasting cartridge to trigger, which leads to the rod 6 being disconnected and the emergency buoy coming out of the mine 3. The buoy is further surfaced in the sequence described above.

Literature

1. Prasolov S. N., Amitin I. B. The device of submarines. M .: Military Publishing, - 1979. p. 207.

2. Shipbuilding. - 2011, No. 3, p. 29.

3. Ovchinnikov I.D. Copyright certificate No. 251596, priority 05.08.85, registration 01.04.87

Claims (1)

An emergency buoy installed in the superstructure shaft deeply with the submarine deck and bringing to the surface after releasing it to the hull of the submarine a radio transmitter, characterized in that the radio transmitter antenna is mounted on the small lower bottom of the buoy, and a flexible load is attached to the larger upper bottom creating a tipping moment, turning over when the buoy ascends to the working position.

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