RU2676995C1 - Hangar sliding section movement method - Google Patents

Abstract

FIELD: shipbuilding.SUBSTANCE: invention relates to the shipbuilding and concerns the objects along the ship deck moving methods. Hangar sliding section transportation method is implemented due to the helicopter towing device coupling with folding brackets made in the form of a truss structure and symmetrically located on the hangar sliding section bulkheads inner sides. To work with the hangar sliding section, the cable transportation system automation system is used, an additional operation mode is introduced, switched from the portable or stationary control panel. Brackets required position is fixed with the help of stoppers. During the cable transportation system winch / winches drums rotation of the, the traction and simultaneously holding forces are formed, allowing to perform the hangar sliding section forward movement under conditions of rolling in two directions: into the ship bow or into the stern with the winch / winches drums rotation direction changing.EFFECT: enabling possibility of the helicopter and the hangar sections transportation by the single cable system.1 cl, 5 dwg

Description

The method relates to shipbuilding and for the movement of sliding sections of hangars designed to increase the length and useful volume of stationary ship hangars.

In shipbuilding, a large number of retractable telescopic hangars of various designs are used. They make it possible to provide basing or temporary shelter of aircraft in conditions of limited ship length and consist, as a rule, of separate sections that can be retracted one into another.

The following analogues are known:

- retractable electric hangar sections of companies such as Indal Technologies and FHS;

- extendable hangar sections with telescopic hydraulic drive;

- extendable hangar sections with electro-hydraulic drive;

The indicated types of sliding sections of hangars are used on an icebreaker of the Wind type and an icebreaking vessel of the John Cabot type (Kashtelyan V.I., Ryvlin A.Ya., Faddeev O.V., Yagodkin V.Ya. Icebreakers, - L .: “Shipbuilding”, 1972, pp. 272-275), on ships of the coastal defense of the Canadian and US Navy, on Italian frigates of the Lupo-class type and patrol ships of the NUMC type, etc.

However, in conditions of limited dimensions of the ship and the lack of free volumes to accommodate the above drives, it is proposed to use rope systems for transporting ship helicopters (provided they are available on ships) to ensure the transportation of the sliding section of the hangar.

Rope transportation systems for ship helicopters are the most widespread in Russian shipbuilding and are a closed rope system with cable wiring extending above the upper deck (see article by A. A. Karpov, V. S. Solovyov “Devices for the forced landing and transportation of ship helicopters on ships with a single base "in the scientific and practical journal" Invention ", August 2015, Volume XV No. 8 - M .: MIPS, 2015; and also the patent of the Russian Federation No. 2141435). In general, they consist of the following components: one, two or three winches, a towing device, locking devices, ropes with carabiners, outgoing blocks, control systems. Both carbines are connected to a towing device, which has mating parts for attachment to elements placed on a ship's helicopter. Locking devices ensure the exact stop of the helicopter at the standard storage location in the hangar and do not allow the helicopter to continue moving along the deck of the ship. The device is controlled from the hangar panel or from a portable control panel.

Due to the fact that the mass and overall dimensions of mainly used ship helicopters and hull structures of retractable sections of hangars are approximately comparable (about 12-13 tons), it is possible to use rope systems for transporting ship helicopters as drives for transporting hangars. To do this, it is necessary to ensure the coupling of the towing device of the rope transportation system and the elements of the sliding section of the hangar, and also ensure the operation of the automation system in the mode of transportation of the sliding section of the hangar.

The proposed method of transporting the sliding section of the hangar (see Fig. 1-4) is that on the sliding section of the hangar 1 are installed hinged brackets 2, made in the form of a truss (to facilitate weight and stiffening). The indicated brackets are placed symmetrically on the inner bulkheads of the hangar extension section on hinges, each of which is terminated by a structural element for the mating part of the specific towing device 8, which is connected to the ropes 3 ”wound on the drums of the winch 4 (winches). The ropes pass over the upper deck, their tracing is determined by the location of the bypass blocks 11.

For example, for Russian ships, a ball bearing can be used for a standard towing device, similar in design, shape and overall dimensions, used on the transportation pyramid of Russian ship helicopters.

Brackets 2 have two positions: vertical marching and horizontal working (for transporting the sliding section of the hangar). The required position of the brackets is set using stops. The height of the brackets from the upper deck in the working position should provide free passage of the ropes 3 of the transportation system.

When the winch 4 drums (winches) rotate, a pulling force is generated and at the same time a pulling force is applied along the symmetry axis of the sliding section of the hangar, allowing it to be transported in the rolling direction in two directions: to the bow and stern of the ship.

To fix the sliding section of the hangar in extreme positions, mechanical clamps similar in construction to that used in RF patent No. 2582739 can be used. In the extended and intermediate positions, the sliding section of the hangar can be moored with deck moorings, similar to mooring containers and other cargoes on ships, as well as with mechanical locks of various designs with a hitch to the deck or with rail guides 9.

To work with transporting the sliding section of the hangar, the cable transportation system must have additional limit switches (contact or non-contact type), as well as appropriate operation locks when the blinds of the sliding section of the hangar are not fully raised or the gates are not fully open (depending on the type of hangar closure used ) In addition, on a portable or stationary control panel, a toggle switch for switching the operating modes of the cable transportation system with either a helicopter 5 or with a sliding hangar section must be provided, since, otherwise, when the helicopter is on the locking device 7, it will be impossible to give a command to move retractable section of the hangar 1 in the bow of the ship. Thus, when the helicopter is on the locking device 7, the rope transportation system must ensure the movement of the sliding section of the hangar in both directions.

In the event of a failure of the equipment for the transportation system of ship's helicopters, fixation of the retractable hangar 1 in an intermediate position by mechanical means and mooring should be provided.

The following is a method of transporting a sliding section of a hangar using a cable helicopter transportation system, which is divided into several stages. As an example, a single-winch version of the rope transportation system is shown, while the sliding part of the hangar consists of one section.

At stage I (see Fig. 1), using the cable-borne transportation system after landing the helicopter 5 on the runway 6 and folding its screws (and tail rotor beams - if the helicopter is designed according to the classic single-rotor scheme with one supporting and steering screws) transport the ship's helicopter 5 to the hangar 10, where it is moored, ground and other necessary operations, as well as disconnect the towing device 8 from the structural elements of the helicopter 5. Retractable section of the hangar 1 find camping in the retracted position, the brackets 2 - in the stowed position.

At stage II (see Fig. 2), the brackets 2 are brought into working position, folding them into the sliding section of the hangar 1, where the towing device 8 is coupled to the brackets 2, the toggle switch on the control panel is switched to the operating mode of the cable transportation system with the sliding hangar section .

At stage III (see Fig. 3) after securing the towing device 8 with brackets 2, the sliding section of the hangar 1 is moved to the extreme aft position due to the rotation of the winch drums. Upon reaching the extreme extended position, the sliding section of the hangar is locked with mechanical stops and moorings.

At stage IV (see Fig. 5) translate the closure of the sliding section of the hangar 12 in the closed position. The brackets 2 are undocked from the towing device 8 and put into the stowed position. The towing device 8 and tapping blocks 11 are removed to the intended storage places in the hangar 10 or in another ship’s room. The ropes are wound on the drums of the winch 4 and unfastened in the stowed position.

To ensure the departure of the helicopter from the ship, these operations are performed in the reverse order.

The only restriction on the use of the proposed method may be the presence of the helicopter landing gear (in the fore or aft) located along the axis of symmetry of the helicopter, since otherwise the rope will not be able to pass under its fuselage. However, such an arrangement of landing gear racks is found only in some types of shipborne helicopters of foreign manufacture, and other mechanized transportation systems, such as RAST, ASIST, etc., are used for their transportation on the deck. (see the article by A. A. Karpov, V. S. Solovyov “Devices for the forced landing and transportation of ship helicopters on single-based ships” in the scientific and practical journal “Invention”, August 2015, Volume XV No. 8 - M. : IIPS, 2015). In addition, with a similar arrangement of the landing gear, this problem can be solved by changing the cable wiring when installing additional outrigger units when the helicopter is already moored in the hangar.

The advantages of the proposed method is the lack of a special drive for moving the sliding section of the hangar, which requires the supply of power, working media, the allocation of useful additional volumes, which can not always be achieved in a tight arrangement with small dimensions of the ship. Thus, the rope helicopter transportation system becomes a universal system. Also, the convenience of the proposed method is the possibility of its application for cable transportation systems with one, two or three winch versions, while the winches themselves can be either electric or electro-hydraulic. In addition, the application of traction on the axis of symmetry avoids jamming of the sliding section of the hangar during its movement.

Claims (1)

A method of transporting a sliding section of a hangar, including a rope system for transporting a helicopter in one, two, or three-mast design, having the ability to move a helicopter along the deck of a ship, characterized in that the object of transportation is also a sliding section of a ship hangar, to control it an additional automation system is introduced operating mode with a sliding section of the hangar, the movement of which is carried out using a rope transportation system when using a towing device, to which is secured to the truss hinged brackets placed on the inner sides of the bulkheads of the hangar extension section and installed in a vertical stowed and horizontal working position, while the towing device is connected to ropes wound around the winch drums / winches, which form a traction and at the same time holding force applied by the axis of symmetry of the sliding section of the hangar, allowing its progressive movement under rolling conditions in two directions: in the bow or in the stern of the ship and changing the direction of rotation of the winch / winch drums.

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