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Ship rudder bearing wharf maintenance and replacement method

A technology for maintenance and replacement and rudder bearing, applied in the field of repair and replacement of ship rudder bearing wharf, can solve the problems of waste, wear of the plane bearing of the rudder bearing, narrowing of the clearance of the steering gear plunger and rudder handle, etc., and achieve the effect of saving the cost of docking

Active Publication Date: 2021-03-26
HUDONG ZHONGHUA SHIPBUILDINGGROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the operation of the ship, since the weight of the entire rudder system is carried on the rudder bearing, the plane bearing of the rudder bearing wears relatively seriously, and then the entire rudder system sinks together with the tiller, which causes the upper surface of the steering gear plunger to be in contact with the rudder The gap between the shanks shrinks or even touches, which affects the normal operation of the rudder system. Therefore, it is generally necessary to enter the dock to replace the entire rudder bearing every 10-15 years during the normal dock repair of the ship.
[0003] However, in the actual operation of the ship, the wear speed of some ships’ flat rudder bearings will exceed expectations, and it is necessary to repair and replace the rudder bearings in advance before the normal docking time of the ship, or some rudder bearings are less worn and can be repaired after the docking period. Repair and replace
In this way, whether it is to dock in advance for maintenance and replacement or replace it in advance during the normal dock repair time under the premise that the rudder bearing can still be used, it will cause a lot of waste
[0004] To sum up, in the current repair and replacement methods of ship rudder systems, there is a lack of a simple and effective method to complete the repair and replacement of rudder bearings without the ship entering the dock

Method used

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  • Ship rudder bearing wharf maintenance and replacement method
  • Ship rudder bearing wharf maintenance and replacement method
  • Ship rudder bearing wharf maintenance and replacement method

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Embodiment Construction

[0028] The technical solution of the present invention is further described below in conjunction with specific embodiments:

[0029] A method for repairing and replacing a ship's rudder bearing wharf, which is applicable to all rudder systems with tiller structures, such as Figure 1-6 As shown, the method includes:

[0030] S1. Remove the anti-jump block 3 welded on the rudder blade 1 to reduce the distance between the rudder blade 1 and the upper hull structure 2 to prevent the rudder blade 1 from moving up and down in a large range, and remove the steering gear plunger 4, as figure 2 shown.

[0031] S2, according to the size of the rudder blade 1, determine the quantity of the scaffolding rings that are welded on the rudder blade for installing the scaffolding 5, the scaffolding rings 6 are 1T rings, and the distance between the scaffolding rings 6 is 2-3m, then use Wharf crane transports personnel to weld rings and set up scaffolding 5, such as Figure 5 As shown, the ...

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Abstract

The invention relates to a ship rudder bearing wharf maintenance and replacement method. According to the method, after a rudder system is lifted through a jacking device, a connecting plate is installed, the weight of the rudder system is supported and transferred to the connecting plate, after a tiller is detached, a worn part is maintained and replaced, and the tiller is reinstalled. By means of the maintenance and replacement method, maintenance and replacement of the ship rudder bearing can be achieved under the condition that a ship does not enter a dock, a large amount of cost is saved,the method is simple and convenient, and the problem that the ship cannot normally operate due to rudder bearing abrasion can be rapidly solved.

Description

technical field [0001] The invention relates to the field of ship maintenance, in particular to a repair and replacement method for a ship rudder bearing wharf. Background technique [0002] The rudder system is a very important piece of equipment on a ship, which bears the heavy responsibility of maintaining the ship's course. During the operation of the ship, since the weight of the entire rudder system is carried on the rudder bearing, the plane bearing of the rudder bearing wears relatively seriously, and then the entire rudder system sinks together with the tiller, which causes the upper surface of the steering gear plunger to be in contact with the rudder The gap between the shanks shrinks or even touches, which affects the normal operation of the rudder system. Therefore, it is generally necessary to enter the dock to replace the entire rudder bearing every 10-15 years during normal dock repairs. [0003] However, in the actual operation of the ship, the wear speed o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63B81/00
CPCB63B81/00
Inventor 陆文书孟林魏豪杰黄云峰刘凯
Owner HUDONG ZHONGHUA SHIPBUILDINGGROUP
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