SU755676A1 - Apparatus for centring ships dock - Google Patents

Description

The invention relates to sudostro- ⁴ eniyu and ship repair.

A device for centrio. and landing an object on the cells of the dock in case of agitation, equipped with a traverse with a gable support suspended! on the cables of the cable block system between the towers. Cells are movably placed on inclined support planes. Traverse and cells are equipped with ballasting tanks [1}.

The disadvantage of this device is that in the off position it prevents movement on the slipway, complicates the repair work of the vessel. In addition, centering is possible only with the participation of man.

The closest technical solution to the invention is a device for centering ships in the dock, which contains hinge-coupled centering elements with dock towers located symmetrically to the dock's diametral plane [2].

However, the device has a complex structure.

The aim of the invention is to simplify the design. (

2

This goal is achieved by the fact that the centering elements are equipped with traction units and a cable-blocking system, some of the blocks are made with a shock-absorbing suspension, each pair of centering elements arranged opposite each other has a traction element common to these elements, which is associated with each of the elements .

FIG. 1 schematically shows the proposed device (I variant); in fig. 2 - a dock equipped with a centering device, top view (G variant); in fig. 3 - the same, side view (I option); in fig. 4 - dock, top view (option II); in FIG. 5 the same, section A-A in FIG. 4 (option II); in fig. 6 - device cable system (II variant).

I option.

The proposed device contains several pairs of centering elements 1, connected by hinges 2 with dock towers 3. The centering elements are arranged symmetrically with respect to the DP dock. The lower ends of the centering elements are tightened to the DP dock by the counter-loads 4 through the cable block

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755676

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the system, the final blocks 5 of which are located on the slipway near the DP dock. Each pair of opposing centering elements has a counter load common to both elements, connected to each of the elements by cable branches.

b equal length. The supporting surface of the centering elements is provided with fenders 7. The centering elements have additional 'hinges 8, the axes of rotation of which are perpendicular to the axes of the main hinges 2. A number of blocks of the cable block system have a cushioning suspension 9,

The device works as follows.

Before the ship enters the dock, the centering elements are deflected to the dock towers by the winches or spiers onboard the dock and fixed in this position. The ship is docked in any of the known ways and is installed at one of the towers. After that, the centering elements are released and the vessel is shifted to the final alignment of its DP with the DP dock. Dynamic loads that occur in the elements of the device at the time of the vessel’s transition through the middle position, when new centering elements enter the work, due to the inertial qualities of counterweights, are absorbed by the damping suspensions 9 ,.

As the dock ascends, the vessel approaches the slipway, pushing the centering elements towards the dock towers. The centering process is completed with the landing of the vessel on the block.

At the end of the ascent, the centering elements can be deflected by winches or spiers to the dock towers and fixed in this position.

It is possible to place the ship in the dock and with the released centering elements,

11 option.

The centering elements of the proposed device are located symmetrically with respect to the DP dock and are designed as bows 1, articulated with bases with dock towers, and with vertices with rods 2. Opposite ends of rods 2 are equipped with blocks through which the cable branches 3 are thrown. against each other, the centering elements are connected to the housings of the corresponding blocks 4 of the cable-block system. The latter are connected by a cable 5, which is “removed from the drum of the automatic winch 6. The cable system includes a series of blocks 7 with a suspension suspension. The centering elements are equipped with fenders in the form of elastic support rollers 8.

• The device works as follows.

When the winch selects the 6 cable, the rod 2 moves out of the tower body with the cable branches 3, deflecting the tops of the braces 1 to the DPdock. The force developed by the winch is evenly distributed between pairs of centering elements, and centering elements deviate symmetrically 'relative to the DP dock. Dynamic loads that occur in the cable block system during the centering period are partially absorbed by blocks 7, which have a shock-absorbing suspension.

At the end of the centering due to the release of the cable 5, the centering elements are deflected to the dock towers.

The proposed device has a simple design and allows automatic centering without any system indicating the position of the vessel in the dock (position control system).

Claims (1)

Claim Device for centering ships in the dock, containing centering elements pivotally connected to the dock towers, located symmetrically with respect to the dock diametral plane, characterized in that, in order to simplify the design, the centering elements are provided with traction units and a cable block system , and each pair of centering elements located opposite each other has a traction unit common to these elements, which is associated with each of the elements of an independent cable new branch .