Over-sea trestle capable of compensating marine environmental disturbance

Abstract

The invention discloses an over-sea trestle capable of compensating marine environmental disturbance. The over-sea trestle comprises a trestle building system, a hydraulic control compensating systemand a trestle body. The trestle building system is of a double lazy arm rotating type structure, the hydraulic control compensating system comprises a sensor, a controller and an executing mechanism,the executing mechanism is composed of three hydraulic cylinders in parallel, and a trestle base is installed on the upper portion of the executing mechanism; the sensor is fixed to the trestle base,which is used for measuring three free motion states of the trestle base; the three free motion states comprise a rolling motion, a plunging motion and a heaving motion; the input end of the controller is connected with the sensor, and the output end of the controller is connected with the executing mechanism. The hydraulic control compensating system can initiatively compensate the rolling, plunging and heaving motions, transmitted by a floating platform over the sea and a ship and caused by marine environmental disturbance, of the over-sea trestle so that the trestle base can be kept stable,the influences of movements of the marine floating platform and the ship on the trestle body can be effectively isolated, and safe transferring for persons and weight-limited goods and materials is ensured, and the safety hazard is eliminated.

Description

technical field [0001] The present invention relates to equipment technology in the field of ships and marine engineering, in particular to a sea trestle that can compensate for disturbances in the marine environment, which can be used to connect marine floating platforms with supply ships, operation and maintenance ships, etc., so that personnel and materials can be transferred smoothly, and Like on land, it can effectively guarantee the safety of personnel and material transfer operations. Background technique [0002] The offshore trestle is a trestle bridge that can be freely retracted and erected for connecting marine floating platforms (including offshore drilling platforms, living platforms, wind farms, etc.) On the offshore floating platform or ship, the other end can be quickly and conveniently set up on another platform or ship to meet the needs of personnel and material transfer between them. However, in practice, marine floating platforms, supply ships, operatio...

AI Technical Summary

Problems solved by technology

Chinese patent CN102900017B discloses a rotary telescopic trestle, which combines the characteristics of the telescopic trestle and the rotary trestle to solve the problem that the trestle occupies a large deck area

However, none of the above three trestle bridges have marine environment disturbance compensation control devices, which cannot compensate for the sway generated by the trestle bridge during operation, and there are serious safety hazards

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