Three-degree-of-freedom displacement platform for ship

Abstract

The invention discloses a three-degree-of-freedom displacement platform for a ship, which comprises a platform surface which is always parallel to a base, the platform surface is connected with threemovable seats through connecting rod assemblies, the three movable seats are installed on three screw rods in a matched mode through thread pairs respectively, guide sleeves are arranged on the threemovable seats respectively, the guide sleeves are arranged on guide columns in a sleeving mode. The connecting rod assembly comprises a connecting rod and a Steffe hinged support, one end of the connecting rod is connected with the table top, the other end of the connecting rod is connected with the movable base through the Steffe hinged support, the upper end of the guide column is fixed to the upper end plate, the motor is fixed to the upper end of the upper end plate, the output end of the motor is connected with the lead screw, and the lower end of the guide column is fixed to the lower end plate. And the lower end plate is fixed on the base. According to the displacement platform, miniaturization of the marine three-degree-of-freedom displacement platform can be achieved, the three-degree-of-freedom displacement amount generated by the sea condition to a ship, especially the large-lift displacement amount generated by the sea condition to the ship, is compensated, and the safety of platform operation on the ship is improved.

Description

technical field [0001] The invention relates to a three-degree-of-freedom displacement platform for ships. Background technique [0002] Marine three-degree-of-freedom displacement platforms are mainly used for operating platforms between ships and docks, ships and ships, and ships and fixed objects. These operating platforms are affected by sea conditions, and often the connecting objects (such as springboards, trestles, etc.) move or even fall off. , seriously endangering the safety of operators and cargo. For this reason, three independent motion mechanisms that can move independently or in combination have been invented to form a motion platform that can realize three-degree-of-freedom linear motion, which can generate impact on ships affected by sea conditions. The three-degree-of-freedom linear motion is actively compensated to improve the safety of ship operations. [0003] Marine three-degree-of-freedom displacement platforms are used more and more widely, mainly us...

AI Technical Summary

Problems solved by technology

[0004] At present, the operating platforms used for ships and docks, ships and ships, and ships and fixtures are mainly springboards and six-degree-of-freedom boarding trestles; springboards are the easiest and most unsafe; six-degree-of-freedom boarding trestles have a serious Defects, the travel of up and down movement is limited, and the ship is affected by various factors such as tides, waves, and currents in the ocean. The up and down movement of the ship is very large. For example, the impact of the tide in the East China Sea is as high as 2 meters, and the third-level sea state is also as high as 2 meters. meters, it is difficult to compensate for the currently used marine landing devices, and the use of indirect compensation will cause the equipment to be large in size, heavy in weight and expensive in cost

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