Ship stern tube protective cover and mounting method thereof
A technology of protective cover and stern tube, which is applied in the field of ship stern tube protective cover and its installation, which can solve the problems of inability to weld, large size of protective cover, large difference between the axis center of the stern tube and the center of the stern column, etc., and achieve the effect of easy positioning
Active Publication Date: 2021-12-10
GUANGZHOU WENCHONG SHIPYARD CO LTD
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Problems solved by technology
Due to the large size and heavy weight of the protective cover itself, the first installation method is very difficult to locate in the actual installation, and the position needs to be adjusted continuously, and there are requirements for the end face area of the stern column, there must be enough area to ensure that the protective cover can make adjustments
The second type of installation must require that the installation center line of the stern tube be close to the center of the outer circle of the stern column, otherwise there will be installation misalignment
In the process of actual axis positioning, there is often a large difference between the center of the stern tube axis and the center of the stern column. In this case, when the protective cover is installed, there will be a section of the protective cover that is separated from the outer circle of the stern column and cannot be welded.
More importantly, when the protective cover is welded on the stern column, the welding operation will cause damage to the paint in the inner area of the protective cover. Since the protective cover is a full circle after welding, and only two observation ports are reserved on the protective cover, There is not enough space to repair or paint over the damaged paint on the shield, and since the shield is submerged in seawater for many years, the damaged paint area will accelerate the corrosion of the shield
Method used
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[0026] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0027] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "inner" and "outer" in the present invention are based on the attached The orientation or positional relationship shown in the figure is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a reference to this invention. Invention Limitations.
[0028] In the desc...
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The invention relates to the technical field of ship stern tube shaft seal protection, and discloses a ship stern tube protective cover. The cover comprises an adjusting ring and a protective cover bod; the outer diameter of the adjusting ring is less than the inner diameter of the protective cover body, one end of the protective cover body is used for being connected with a fishing net cutter, and the adjusting ring is used for determining the installation position of the protective cover body on the end face of the sternpost and welded to the end face of the sternpost. The invention also discloses a mounting method of the ship stern tube protective cover. On the basis of the ship stern tube protective cover, the mounting method comprises the following steps: positioning the adjusting ring, determining the position of the adjusting ring, then welding the adjusting ring to the end face of a stern post, repairing paint on the adjusting ring and the end face of the stern post, and finally, connecting the protective cover body with the adjusting ring. According to the ship stern tube protective cover and the mounting method thereof, positioning and mounting are convenient.
Description
technical field [0001] The invention relates to the technical field of shaft seal protection for ship stern tubes, in particular to a ship stern tube protective cover and an installation method thereof. Background technique [0002] The stern tube shaft seal is an important part of the shafting device, and is divided into a front shaft seal and a rear shaft seal, which are respectively installed at the front end and tail end of the stern tube. The function of the stern tube shaft seal is to prevent the leakage of lubricating oil in the stern tube, and at the same time prevent seawater from entering the stern tube cavity and cause serious safety hazards caused by oil deterioration. Therefore, it is very important to maintain the normal effect of the stern tube shaft seal. Since the rear shaft seal of the stern tube is arranged at the rear end of the stern tube, this part of the area is submerged in seawater all the year round. Affected by external sundries, etc., there is us...
Claims
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Login to View More IPC IPC(8): B63H23/36
CPCB63H23/36
Inventor杨阳何超平黄浩文陈俊耿
OwnerGUANGZHOU WENCHONG SHIPYARD CO LTD