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Efficient steering method for ship

It is a high-efficiency technology for ships, which can solve the problems of low rudder turning efficiency and achieve high rudder turning efficiency, improve efficiency, and increase output torque.

Inactive Publication Date: 2019-03-19
WUHAN MARINE MACHINERY PLANT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the defects and problems of low steering efficiency at low speeds in the prior art, and provide a high-efficiency ship steering method with high steering efficiency at low speeds

Method used

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  • Efficient steering method for ship

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Comparison scheme
Effect test

Embodiment 1

[0041] see figure 1 , a high-efficiency ship steering method, the ship steering method includes the following steps: first set a frequency converter 2 between the starter 3 and a power supply 1, and then according to the predetermined steering speed requirements of the steering mechanism 7, through the frequency converter 2 Adjust the output frequency of the power source 1 flowing to the starter 3 to adjust the rotation speed of the motor 4, then adjust the rotation speed of the hydraulic pump 5 by the motor 4, and then adjust the steering speed of the steering mechanism 7 by the hydraulic pump 5 to achieve the predetermined rotation speed The steering speed of the rudder mechanism 7, and then the direction of the rudder blades is adjusted by the steering mechanism 7 to adjust the navigation direction of the ship; the output frequency adjusted by the frequency converter 2 and the steering speed of the steering mechanism 7 are one by one Correspondingly, the rudder turning spee...

Embodiment 2

[0043] Basic content is the same as embodiment 1, the difference is:

[0044] The steering speeds corresponding to the high, middle and low gears are 65° / 28s, 65° / 20s, and 65° / 14s respectively. Said high, middle and low speeds correspond to the following: above 11 knots is the high speed, between 11-7 knots is the middle speed, and below 7 knots is the low speed.

Embodiment 3

[0046] Basic content is the same as embodiment 1, the difference is:

[0047] The starter 3 is provided with a PLC, the input end of the PLC is connected to the speed signal, and the input end of the PLC is connected to the frequency converter 2 to control the frequency converter 2 according to the speed signal received by the PLC. , so as to adjust the output frequency of the power supply 1 flowing to the starter 3 .

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Abstract

The invention discloses an efficient steering method for a ship. A frequency changer is arranged between a starter and a power supply, according to the requirements of the predetermined steering speedof a steering mechanism, the output frequency flowing to the starter from the power supply is adjusted by the frequency changer to adjust the rotating speed of a motor, and then the rotating speed ofa hydraulic pump is adjusted by the motor; the steering speed of the steering mechanism is adjusted by the hydraulic pump to reach the predetermined steering speed of the steering mechanism, and thenthe direction of rudder blades is adjusted by the steering mechanism to adjust the sailing direction of the ship; the output frequency adjusted by the frequency changer corresponds to the steering speed of the steering mechanism, the steering speed of the steering mechanism takes the sailing speed as a reference object, the sailing speed is divided into three gears of a high gear, an intermediategear and a low gear and successively decreased, and the steering speed corresponding to the high gear, the intermediate gear and the low gear is successively increased. The steering efficiency is high at the low sailing speed, and the method is wider in application range and suitable for narrow water areas and speed-limiting channels.

Description

technical field [0001] The invention relates to a method for operating a ship's rudder, in particular to a method for highly efficient ship's steering, which is particularly suitable for improving the efficiency of turning the rudder at a low speed. Background technique [0002] The ship steering gear (rudder steering mechanism) is the key equipment used to maintain or change the direction of the ship. The steering gear of the ship realizes the change of the direction of the ship by controlling the change of the direction of the rudder blade at the stern. When the rudder blade rotates, there is a certain angle between the rudder blade and the sailing direction of the ship. At this time, the force acting on the rudder blade by the water flow can be decomposed into a force perpendicular to the hull and a force parallel to the hull. Among them, The force perpendicular to the hull makes the hull rotate around the center of gravity to form a turning moment, so as to achieve the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63H25/22B63H25/24
CPCB63H25/22B63H25/24
Inventor 胡红斌侯秀举张辉
Owner WUHAN MARINE MACHINERY PLANT
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