Shipboard helicopter stabilized platform

Abstract

A shipboard helicopter stabilized platform is characterized in that three ball sockets of the lower surface of a dynamic platform are matched with a sphere at the upper ends of leveling rods to form S pairs, and the lower ends of the leveling rods are arranged in leveling hydraulic cylinders to form P pairs; the lower ends of the leveling hydraulic cylinders are connected with a base support bottom ring through a cross shaft; two supports are fixed to a base support, and two outer shafts of a cross hinge sleeve are arranged in two shaft sleeves at the upper end of the base support; two outer shafts of a center hydraulic cylinder are arranged in two through holes of the cross hinge sleeve arranged on the upper portion of the center hydraulic cylinder in a sleeving mode to form P pairs; a ball socket is arranged at the upper end of a center supporting rod, and the ball socket is matched with a ball on the lower portion of the dynamic platform to form an S pair; a ball is arranged at the lower end of the center hydraulic cylinder, the ball is connected with one ends of two angle hydraulic cylinders respectively through a connection assembly, the other ends of the two angle hydraulic cylinders are connected to the inner annular face of the base support bottom ring, and the included angle between the axes of the two angle hydraulic cylinders is 90 degrees. By means of the shipboard helicopter stabilized platform, a shipboard helicopter can take off and land safely under large winds and waves, and meanwhile the safety of the shipboard helicopter and a ship can also be guaranteed.

Description

technical field [0001] The invention relates to a mechanical device for assisting a shipborne helicopter to land. Background technique: [0002] Many ships today are equipped with ship-borne helicopters, especially those on a series of medium and large ships such as naval combat ships, engineering operation ships, and scientific research ships are indispensable equipment. However, the natural situation at sea is very complicated. Due to the influence of disturbance factors in the marine environment such as waves, sea wind, and currents, ships on the sea will have six freedoms: roll, pitch, yaw, sway, surge, and heave. degree of movement. These movements not only greatly affect the efficiency of offshore work, but also pose a serious threat to the take-off and landing safety of shipboard helicopters. For example, when the helicopter lands on the ship without assistance, the anti-wind and wave capability of the aircraft is: the roll of the ship surface is ±50, and the pitch ...

AI Technical Summary

Problems solved by technology

However, under sea conditions of level 7, a ship with a displacement of 7000t will roll at 30°, pitch at 80°, and lift at a speed of 6m / s. If there is no corresponding auxiliary landing device, the helicopter will almost impossible to take off and land

Most of the existing stabilizing platforms are driven by torque motors to achieve stability. Although this kind of stabilizing platform is small and light, its load is too small for shipboard helicopters to play a stabilizing role. When driving, the center of gravity of the load must be controlled within the center of slewing. The control is difficult, the load capacity is small, and the degree of freedom of platform movement is less, often unable to achieve displacement compensation in the vertical and horizontal directions.

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