Accommodation ladder stretching-out system

Abstract

The invention discloses an accommodation ladder stretching-out system. The accommodation ladder stretching-out system comprises a stand column, a turning arm, an eye plate, a hinge pin, an accommodation ladder fixing device and a driving lift winch. The stand column is fixed to a ship side deck. The eye plate is fixed to the front end of the stand column and hinged to the turning arm through the hinge pin. The accommodation ladder fixing device is arranged below the outer end of the turning arm. The driving lift winch is fixed to one side of the stand column. A pulley block is formed by a turning rope wound on a winding drum of the driving lift winch, a pulley arranged on the stand column, a pulley arranged on the turning arm, and a pulley arranged on the accommodation ladder fixing device jointly. The turning arm is provided with an inner sleeve piece, an outer sleeve piece and a hydraulic oil cylinder. The hydraulic oil cylinder is arranged on the upper plane of the turning arm. The cylinder body end of the hydraulic oil cylinder is movably hinged to the inner sleeve piece. The piston rod end of the hydraulic oil cylinder is movably hinged to the outer sleeve piece. The outer sleeve piece is pushed by the hydraulic oil cylinder to stretch and retreat in the axial direction along the outer wall of the inner sleeve piece. The accommodation ladder stretching-out system can turn vertically and move horizontally and is safe and reliable.

Description

technical field [0001] The invention relates to the technical field of ship machinery manufacturing, in particular to a gangway extension system. Background technique [0002] When large and medium-sized ships enter the port and berth at the dock, they must rely on the gangway to enter and exit the ship. Generally, the weight of the gangway is relatively large, and it is necessary to use the turning device to turn the gangway to the designated position. When the ship is docked, due to the influence of various factors, the docking position Will change, so the distance between the ship and the berth wharf is always changing, making it difficult to place the gangway. The string ladder turning device in the prior art solves the turning problem of the gangway well, but there are still some shortcomings in this technology, mainly The disadvantage is that only the turning of the string ladder is considered, and the requirement for the horizontal movement of the gangway due to the d...

AI Technical Summary

Problems solved by technology

[0002] When large and medium-sized ships enter the port and berth at the dock, they must rely on the gangway to enter and exit the ship. Generally, the weight of the gangway is relatively large, and it is necessary to use the turning device to turn the gangway to the designated position. When the ship is docked, due to the influence of various factors, the docking position Will change, so the distance between the ship and the berth wharf is always changing, making it difficult to place the gangway. The string ladder turning device in the prior art solves the turning problem of the gangway well, but there are still some shortcomings in this technology, mainly The disadvantage is that only the turning of the string ladder is considered, and the requirement for the horizontal movement of the gangway due to the distance change between the ship and the berth is ignored. In addition, the existing turning devices generally use a large-power motor to drive the turning, and the energy consumption cost higher

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