RU1772295C - Bridge between wharf and boat - Google Patents

Abstract

The invention relates to devices for handling. The purpose of the invention is to improve performance by reducing the amplitude of oscillations of the stern of the vessel during loading and unloading operations. The lifting beam of the bridge is provided with a span and one end is pivotally connected to the shore support. Another quartz is lowered to the stern of the ship. A pontoon is located at the bottom of the lift and is associated with it. The pontoon is made in the form of two compartments - the lower, partially filled with solid ballast, and the upper. Both pontoons are spaced vertically and interconnected by struts. The lifting beam is connected using a cable block system with counterweights floating in the wells. 1 C.p. f-ls, 3 ill.

Description

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The invention relates to port equipment, in particular to devices for loading and unloading during the processing of rolling-type vessels.

The purpose of the invention is to improve the operational qualities by reducing the amplitude of the oscillations of the stern of the vessel during loading and unloading operations.

In FIG. 1 shows a bridge to connect the pier to the ship, plan; figure 2 - the position of the pontoon and the counterweight floating in the well, when installing the span on the stern of the vessel in its extreme upper position; in Fig.3 - the position of the pontoon and the counterweight floating in the well, with a maximum subsidence of the stern of the vessel under the influence of the technological load.

The span of the bridge 1, one end of which is pivotally connected to the shore support 2, and the other is lowered to the stern of the vessel 3 and equipped with a pontoon made in the form of two compartments - the lower 4, partially filled with solid ballast 5, and the upper 6, spaced vertically and connected interconnected by struts 7, equipped with a lifting beam 8, connected by a cable of the block system 9 with counterweights 10 floating in the wells 11.

The bridge works as follows.

The containers of the lower compartment 4 of the pontoon and the wells 11 of the counterweights are simultaneously filled with water so that the racks 7 are completely immersed in water, the lower surface of the upper compartment 6 of the pontoon is in contact with water, and the balances 10 are completely immersed in water.

During loading operations, the force from the technological load located on the span of the bridge 1 and the cargo deck of the vessel causes subsidence of the stern and changes the position of the span of the place, which leads to the immersion of the compartment 6 of the pontoon and the exit of the water of the balances 10.

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At the time of the maximum subsidence of the stern of the vessel, the upper compartment 6 of the pontoon is completely submerged in water, and the balances 10 are drained. The force of excessive buoyancy of the upper compartment 6 of the pontoon and the mass of the balances 10 reduces the force transmitted from the passage of the bridge 1 to the stern of the vessel 3, to a minimum value.

Claims (2)

SUMMARY OF THE INVENTION 1. A bridge for connecting a berth to a ship, comprising a lifting beam, one end of which is articulated to the shore; howling support, and the other is lowered to the stern of the vessel and connected by a cable block system with counterweights floating in the wells, /////////////////AND  with 0 placed in the supports, characterized in that, in order to improve operational performance by reducing the amplitude of the stern of the vessel during loading and unloading operations, the lifting beam is provided with a span of a bridge located above it and a pontoon placed under the lifting beam, the pontoon is made in the form of lower and upper compartments spaced vertically and interconnected by racks. 2. The bridge according to claim 1, characterized in that, in order to reduce the metal consumption, a solid ballast is placed in the lower compartment of the pontoon. //////////// 77 /// /ABOUT