Rocker arm structure of retractable rock reducing fin for ships

Abstract

The invention relates to a rocker arm structure of a retractable rock reducing fin for ships, in particular to a fin-retraction actuating mechanism of a retractable rock reducing fin for ships, belonging to the technical field of ship rocking reduction and control. The rocker arm structure comprises a rocker arm body, wherein the extended arm of the rocker arm body and a retracting oil cylinder constitute a connecting rod mechanism, the end part of the arm and the ear ring connecting part of a piston rod of the oil cylinder form a fork-shaped ear ring, and the opening position of the fork-shaped ear ring is cast into a first plane, a second plane and an inclined plane; and a first boss and a second boss are respectively arranged on the second plane at the arm end of the rocker arm body. The rocker arm structure has simple, compact and reasonable structure; because the fork-shaped ear ring of the rocker arm is in a cast forming structure, the bosses only need to be used for locally machining, time and labor are saved, the utilization rate of materials is improved, the labor intensity of workers is reduced and the assembly precision is ensured, and the production efficiency can be improved exponentially.

Description

technical field [0001] The invention relates to a rocker arm structure of a retractable fin stabilizer for a ship, in particular to an actuator device for a retractable fin stabilizer for a ship, which belongs to the technical field of ship stabilization and control. Background technique [0002] Marine retractable fin stabilizers are mainly used on ro-ro passenger ships, fishery administration ships, scientific research ships and military ships sailing at sea to reduce the rolling amplitude of ships navigating in wind and waves and improve the comfort of passengers and the stability and safety of the ship's navigation. The retractable fin stabilizer for marine can make the fins be retracted into the hull when not in use and when the ship is docked, which is convenient for berthing of the ship and reduces the resistance of the ship during navigation. It is widely used. The rocker arm is the main part of the marine retractable fin stabilizer used for the actuator of the fin ...

AI Technical Summary

Problems solved by technology

The rocker arm is the main part of the marine retractable fin stabilizer used for the actuator of the fin retraction. Together with the cross shaft group, the connecting shaft and the retractable oil cylinder, the actuator for the fin retraction is formed. The rocker arm parts extend The arm and the retractable oil cylinder constitute a connecting rod mechanism, and the connection between the end and the piston rod earring of the cylinder is a fork earring structure, which needs to be formed through multiple processes such as turning, boring and milling. Due to the limitation of the size and shape of the workpiece, The operation is extremely inconvenient, the processing is difficult, time-consuming and labor-intensive, which increases the labor intensity of workers and greatly reduces work efficiency

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