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A method for precise positioning of the track of the trolley with the shaft entering the stern of the ship

A technology of precise positioning and trolley track, which is applied in the direction of warships, etc., can solve the problems of different centerlines, fluctuations in the front and rear directions, misalignment between the center of the stern shaft tube and the centerline of the shaft system, etc., to ensure product quality and reduce investment costs Low, improve the effect of core competitiveness

Active Publication Date: 2020-08-07
HUDONG ZHONGHUA SHIPBUILDINGGROUP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In addition, since the stern tube is formed by tailor-welding several rolling-formed steel plates and then welded to the bearing seat at the end to form a whole, on the one hand, since the stern tube is equidistantly distributed along the front and rear direction Some hull structures are strengthened, and the stern tube often has a certain amount of welding deformation at these strengthened places; on the other hand, the bearing housing needs to be bored according to the shafting centerline, which will cause the centerline of the bearing housing to be different from the center of the stern tube. line out of axis
All of the above factors will cause the center of the final stern tube to not coincide with the centerline of the shafting and there will be ups and downs in the front and rear directions

Method used

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  • A method for precise positioning of the track of the trolley with the shaft entering the stern of the ship
  • A method for precise positioning of the track of the trolley with the shaft entering the stern of the ship
  • A method for precise positioning of the track of the trolley with the shaft entering the stern of the ship

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Embodiment Construction

[0031] A method for precise positioning of the trolley track at the tail of a ship according to the present invention will be further described in detail in conjunction with the accompanying drawings and examples, in order to understand its structural composition and working mode more clearly, but it cannot be used to limit the present invention. The protection scope of the invention patent.

[0032] Such as figure 1 , figure 2 , image 3 and Figure 4 As shown, a method for precise positioning of the track of the shaft-incoming trolley at the tail of the ship, the method includes the following steps:

[0033] Step 1: install several groups of assemblies, the assemblies include several distance screw rods 1 and two positioning plates 2, the two positioning plates 2 are parallel to each other, the positioning plates 2 are axisymmetric structures, and the The top of the plate surface of the positioning plate 2 is provided with an axis hole 3, and the center of the axis hole...

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Abstract

The invention discloses a method used for precisely positioning a rail of a procession-axis trolley on the tail part of a ship. The method comprises the following steps: mounting an assembly part; drawing a steel wire to align and regulate a positioning plate; laying a flat-bulb steel rail; welding the flat-bulb steel rail, and performing margin-cutting; simulating a travelling test for the procession-axis trolley; and proceeding a transmission shaft. The method has the advantages of being simple in operation, high in operation precision and low in cost.

Description

technical field [0001] The invention relates to the field of shipbuilding, in particular to a method for precise positioning of a track of a trolley for entering a shaft at the stern of a ship. Background technique [0002] Usually the ship shaft system is composed of several transmission shafts (thrust shaft, intermediate shaft and stern shaft) on the same straight line, a propeller shaft and its supporting parts (thrust bearing, intermediate bearing and stern tube bearing), according to the type of ship Different from the requirements of use, common ship shafting can be divided into two types: single shafting and double shafting. Among them, the single shafting is usually arranged on the longitudinal section of the ship, while the double shafting is often arranged symmetrically on both sides of the ship. . Regarding the installation of ship shafting, most of them require the shafting to be put in place before the ship is launched, and after the ship is launched, related o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B63B73/20
CPCB63B73/00
Inventor 马鸿顺
Owner HUDONG ZHONGHUA SHIPBUILDINGGROUP
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