Fin stabilizer directly driven by servo motor

Abstract

The invention relates to a fin stabilizer directly driven by a servo motor. The fin stabilizer comprises a fin, an execution mechanism, a helical lead screw transmission mechanism, the servo motor, a controller and a fin angle feedback device; the controller obtains a corresponding fin rotation instruction through operation according to a rolling angular velocity signal collected by a sensor and outputs a control signal to the servo motor to drive the servo motor to operate according to the fin rotation instruction; the servo motor is connected with the helical lead screw transmission mechanism, rotation movement of the motor is converted into linear movement of a lead screw through the helical lead screw transmission mechanism, the helical lead screw transmission mechanism is connected with the fin through the execution mechanism, linear movement of the lead screw is converted into rotation movement of the fin through the execution mechanism, and fin rotation movement is achieved. The fin stabilizer directly driven by the servo motor has the advantages of being high in response speed, simple in structure and capable of obviously decreasing the size and weight of the fin stabilizer, the problems of low system efficiency, oil leakage, high noise and heat generation can be thoroughly solved, and the system reliability and maintainability are greatly improved.

Description

technical field [0001] The invention relates to a ship anti-rolling device, in particular to a fin-stabilizing device directly driven by a servo motor. Background technique [0002] The existing fin stabilizer is a special marine equipment that integrates machinery, hydraulic pressure, electricity and control. Its fin rotating drive system adopts an electro-hydraulic servo system, which has the characteristics of large output torque, wide application range, and stepless speed regulation. . [0003] Since the fin stabilizer hydraulic system has a process of converting from electrical energy to hydraulic energy and then to mechanical energy when it is working, such a two-time conversion process will inevitably cause energy loss and consumption. Errors and other factors ultimately lead to low efficiency of the fin stabilizer hydraulic system and excessive power of the device. A typical fin stabilizer hydraulic system is composed of a hydraulic pump station, valve group, pipel...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the deficiencies in the hydraulic servo system of the existing fin stabilizer, the present invention provides a fin stabilizer directly driven by a servo motor, which directly drives the mechanical transmission mechanism through the motor and finally drives the fin blades to rotate to realize the stabilizer function. The device has the characteristics of fast response speed, simple structure, and can significantly reduce the volume and weight of the device, and can completely solve the problems of low system efficiency, oil leakage, high noise and heat generation, and greatly improve system reliability and maintainability

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