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Constant speed servo unit for controlling angle signals and control method thereof

An angle signal and servo device technology, applied in the direction of the starting device for steering, can solve the problem of unbalanced steering speed and other problems, achieve long operating life, realize long-distance signal transmission, and have a strong ability to judge transmission faults Effect

Inactive Publication Date: 2013-01-02
SMMC MARINE DRIVE SYST SUZHOU
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method belongs to open-loop control, which will lead to unbalanced rudder speed due to environmental changes such as ocean currents, mechanical damping, hydraulic system including oil damping, etc.

Method used

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  • Constant speed servo unit for controlling angle signals and control method thereof
  • Constant speed servo unit for controlling angle signals and control method thereof

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Embodiment Construction

[0016] Such as figure 1 As shown, the constant-speed rudder steering servo device controlled by an angle signal, the rudder steering column 6 is rotatably supported on the flange, the lower part of the rudder column 6 is fixed with the lower gear box 7, and the upper part of the rudder column 6 is installed with a large rotary gear 5. The rudder hydraulic motor 2 is fixed on the flange, the output shaft of the rudder hydraulic motor 2 is drivingly connected with the input shaft of the planetary reducer 3, and the output shaft of the planetary reducer 3 is installed with the driving pinion 4, which is connected to the rotary gear Gear 5 is meshed, such as figure 2 As shown, the rotary gear 5 is also meshed with the reduction gear 8, and the reduction gear 8 is provided with a rotary encoder 9, and the rotary encoder is an R36 series Hall encoder, preferably an R36A analog Hall encoder. The rotary encoder 9 communicates with the rudder angle indicator 11 and the PLC control un...

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Abstract

The invention relates to a constant speed servo unit for controlling angle signals and a control method thereof. A steering vertical column is supported to a flange in a rotation manner, a lower gearbox is fixed to the lower portion of the steering vertical column, a large swiveling gear is mounted on the upper portion of the steering vertical column, a hydraulic steering motor is fixed onto the flange, an output shaft of the hydraulic steering motor is connected with an input shaft of a planetary reducer, a drive pinion is mounted on an output shaft of the planetary reducer, the drive pinion is meshed with the large swiveling gear, the large swiveling gear is further meshed with a reduction gear which is provided with a rotary encoder, the rotary encoder is in communication connection with a rubber angle display and a PLC (programmable logic controller) control unit respectively, the PLC control unit is in control connection with a potentiometer on an operation handle and a proportional valve respectively, and the proportional valve is located in an oil circuit of the hydraulic steering motor. Margin calculation is performed to a rubber angle instruction and rubber angle feedback, a rubber angle feedback signal is subjected to differential transformation of time to calculate steering speed, and the proportional valve is regulated according to difference between a steering speed instruction and actual steering speed.

Description

technical field [0001] The invention relates to a marine propeller, in particular to a constant-speed rudder servo device controlled by an angle signal and a control method thereof. Background technique [0002] One of the ways to turn the rudder and propeller is to use the hydraulic pump directly driven by the main engine, which is affected by the speed of the main engine, and will accelerate as the speed of the main engine increases. Especially when the ship is running at high speed, the faster rudder turning speed is likely to cause serious safety hazards. For a long time, the common method used by various rudder propeller manufacturers is to use the speed of the main engine as the compensation parameter, and compensate the opening of the proportional valve according to the empirical value. This method belongs to open-loop control, and factors such as ocean currents, mechanical damping, hydraulic system including oil circuit damping and other factors will lead to unbalan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63H25/02
Inventor 黄民邱黎辉
Owner SMMC MARINE DRIVE SYST SUZHOU
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