The retractable hydraulic swing cylinder direct driving the fin stabilizer device

Abstract

The invention provides a retractable hydraulic swing cylinder direct driving fin stabilizer device, which is characterized in that: a mounting seat is installed in a bilge part; The first hydraulic swing cylinder is fixedly mounted on the mounting seat and comprises a first cylinder body, a retracting rotating shaft, a first cylinder blade, a rotating shaft blade, and two oil ports; a connector, wherein a low end of that connector is fixedly connected with a retracting/releasing rotate shaft; a second hydraulic swing cylinder, which is fixedly connected with the upper end of the connector, andthe axial direction is perpendicular to the axial direction of the first hydraulic swing cylinder, and includes: second cylinder, a fin shaft oppositely disposed on the inner wall of the second cylinder, protruding toward the fin shaft and extending in the axial direction, two second cylinder blades oppositely disposed on the fin shaft, protruding toward the inner wall of the second cylinder block and extending in the axial direction, and two sets of oil ports provided on the second cylinder block corresponding to the two second cylinder blades; and a fin fixedly connected to the protruding end of the fin shaft.

Description

Technical field [0001] The invention belongs to the field of ships and marine engineering, and relates to a retractable hydraulic pendulum cylinder directly driving a fin stabilizer device. Background technique [0002] Due to the action of sea waves, ships will produce six kinds of motions: pitch, heave, roll, bow, horizontal drift and vertical drift when sailing at sea. Among them, rolling motion has the greatest impact on the seaworthiness of ships, the comfort of personnel, and the safety of equipment. The fin stabilizer is an important device to reduce the lateral sway of the ship and improve the stability of the ship. [0003] The existing fin stabilizer converts the linear motion output by the linear oil cylinder into the rotation of the fin shaft and the fin through a complicated transmission mechanism. There are three shortcomings in this design. First, the transmission chain is long, resulting in slow response, and the non-linear relationship in the transmission process...

AI Technical Summary

Problems solved by technology

There are three deficiencies in this design. First, the long transmission chain leads to slow response, and the non-linear relationship in the transmission process greatly increases the difficulty of control; The maximum fin angle that can be achieved is very limited, about plus or minus 40°. Such a range of rotation angles cannot meet the needs of ships in unpredictable nautical environments; 3. Its structure is complex, and it takes up a lot of space. brings difficulties

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