Hydraulic control system for fin stabilizer

Abstract

The invention relates to a hydraulic control system for a fin stabilizer, which comprises a two-way variable displacement pump and a pilot oil constant displacement pump, wherein the two-way variable displacement pump is respectively connected with the oil inlets of a first pilot operated check valve and a second pilot operated check valve; the oil outlet of the first pilot operated check valve is connected with a hydrocylinder oil inlet pipe; the oil outlet of the second pilot operated check valve is connected with a hydrocylinder oil outlet pipe; the hydrocylinder oil inlet pipe and the hydrocylinder oil outlet pipe are communicated to a hydrocylinder; the hydrocylinder is linked with the fin stabilizer; the pilot oil constant displacement pump is connected with the two-way variable displacement pump in series; a pressure oil duct connected with the oil outlet of the pilot oil constant displacement pump is simultaneously communicated with a control orifice of the first pilot operated check valve and a control orifice of the second pilot operated check valve; the pressure oil duct is also communicated with one oil inlet of an electrohydraulic servo valve through a first servo control oil duct; and two oil outlets of the electrohydraulic servo valve are communicated with the flow control loop of the two-way variable displacement pump. The hydraulic control system has the advantages of precise control, high response speed and safe reliability.

Description

technical field [0001] The invention relates to a hydraulic control system, and also relates to an anti-rolling mechanism of a ship. Background technique [0002] When a ship travels on the sea, it will sway with the waves. If the sway is too large, it will affect the normal operation of the ship. [0003] In order to resist the influence of sea waves, there is a fin stabilizer system installed on both sides of the ship. By changing the deflection angle of the fins, a reaction force in an appropriate direction is applied to the ship's rocking motion to reduce the impact of waves on the rocking motion of the ship. influences. [0004] However, the existing fin stabilizer system only has wave level adjustment and speed adjustment, but it cannot provide targeted control strategies for changes in sea conditions, course changes, and changes in the ship's navigation state. As a result, the fin stabilizer system is not suitable for all navigation State, can not provide the best a...

AI Technical Summary

Problems solved by technology

[0004] However, the existing fin stabilizer system only has wave level adjustment and speed adjustment, but it cannot provide targeted control strategies for changes in sea conditions, course changes, and changes in the ship's navigation state. As a result, the fin stabilizer system is not suitable for all navigation State, can not provide the best anti-shake effect

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