Compensation type marine transfer side bridge

Abstract

The invention relates to a compensation type marine transfer broadside bridge which comprises a base, a rotary driver, a rotary platform, a swing seat, a first linear driver, a lifting driving frame, a lift car, a second linear driver, a telescopic bridge and a telescopic arm, the base is connected with the rotary platform through a turntable bearing, and the swing seat is rotationally arranged on the rotary platform; the lifting driving frames are arranged on the two sides of the swing seat in a sliding mode, the first linear drivers are symmetrically arranged on the outer sides of the lifting driving frames, the lift car is arranged on the inner sides of the lifting driving frames in a sliding mode, the telescopic arm is arranged at the front end of the lift car, the second linear drivers are symmetrically arranged on the two sides of the rear end of the telescopic arm, and the telescopic bridge is arranged on the telescopic arm. Ship swaying compensation is achieved through linkage of swing lifting of the rotary platform and the lift car and pitching and telescopic movement of the telescopic bridge arm, the ship swaying compensation device has the advantages of being compact in structure and large in compensation range, can have the functions of a ship crane and a pedestrian path, and meanwhile can achieve offshore hoisting operation and offshore personnel transfer operation.

Description

technical field [0001] The invention belongs to the technical field of compensating side bridges for offshore operations, and particularly relates to a compensating type offshore transfer side bridge for personnel and goods. Background technique [0002] Offshore operations such as offshore hoisting, inter-ship personnel and cargo transfer will be disturbed by the ship's roll, pitch, yaw, sway, surge and heave motions caused by sea wind, waves and currents, which will cause operating equipment and operation platforms. The occurrence of relative movement not only increases the difficulty of operation, but also easily causes collision accidents. Therefore, it is of great significance to develop a personnel-cargo transfer gangway that can compensate for ship swaying. [0003] Most of the existing gang bridges for personnel and cargo transfer at sea use the scheme of STEWART parallel platform and the gangway in series, some use the horizontal and vertical rotation and vertical ...

AI Technical Summary

Problems solved by technology

However, the existing solution has the problem that the driving force caused by the heavy eccentric load is several times the load, the overall power of the equipment is large, and the driving efficiency is low; when the heave compensation range is large, the existing solution has a large drive stroke and requires too fast a servo speed ; At the same time, when the heave compensation range is large, the volume of the equipment required by the existing scheme is large, occupying a large space of the ship, and the increase of the initial height of the equipment will increase the difficulty of personnel transfer between the ship and the gangway, and there is a certain safety risk

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