CN104192266A - Maintenance method and device for ship screw shaft rear seal - Google Patents
Maintenance method and device for ship screw shaft rear seal Download PDFInfo
- Publication number
- CN104192266A CN104192266A CN201410517331.2A CN201410517331A CN104192266A CN 104192266 A CN104192266 A CN 104192266A CN 201410517331 A CN201410517331 A CN 201410517331A CN 104192266 A CN104192266 A CN 104192266A
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- buoyancy tank
- ship
- screw shaft
- maintenance
- sealing
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Abstract
The invention discloses a maintenance method for a ship screw shaft rear seal. Through the manner of hanging suspension fittings and propping a sealing gasket, a hollow floating box is fixed behind the ship screw shaft; the floating box is stably clung to the outer housing of the stern; a construction platform in the interior of the floating box provides a construction space required by sealed maintenance so that the maintenance of the ship screw shaft rear seal can be conducted inside the floating box. The maintenance method and device for the ship screw shaft rear seal solve the problem that the ship screw shaft rear seal is limited by the stern; the cost of maintenance is lowered; the free degree of maintenance is improved; the ship does not need to enter or leave the dock during the maintenance process, so that workload and time required by the maintenance are greatly reduced and the efficiency is improved.
Description
Technical field
The present invention relates to the method for maintaining and the device that after a kind of screw shaft of ship, seal.
Background technology
When screw shaft of ship operation, need a large amount of lubricating oils, to avoid its high-speed operation to damage.For fear of oil leakage, affect lubricant effect, simultaneously also in order to prevent contaminated environment, the rear side of screw shaft of ship need to arrange leakproofing material, to stop the leakage of lubricating oil.Then, be subject to the impact of mode of operation and the working environment of stern tube shaft, after screw shaft of ship easily there is seal failure in sealing in use for some time, causes the leakage of lubricating oil.Now need sealing after stern tube shaft to repair, the reparation sealing after screw shaft of ship at present need to be carried out in dock, and dockage maintenance need to arrange pier before lying up in depressed place, after dockage, the water in depressed place is drained again, just possessed operating condition, not only work capacity is large for it, length consuming time, and be limited to dock, in addition, expense is also quite expensive.
Summary of the invention
The present invention aim to provide a kind of can be in the situation that boats and ships lie up to carrying out the method that sealing is keeped in repair after screw shaft of ship, it is not limited by dock, when improving the degree of freedom of maintenance operation, has reduced time, cost and the work capacity of maintenance.
The method for maintaining sealing after screw shaft of ship of the present invention, comprises the steps:
A, make a buoyancy tank by the required construction space of the maintenance sealing after screw shaft of ship;
B, respectively on the ship skin of buoyancy tank both sides install two and hang code;
C, ship stern is tilted upward adjustment boats and ships, the water surface at stern place is positioned under axis below 200mm;
D, measurement hull stern tube shaft foundry goods and screw propeller are linear;
E, linearly offer seal groove before and after the buoyancy tank according to what measure, and corresponding packing seal is installed in seal groove;
F, by buoyancy tank submerged, be in place, make packing seal and ship stern body skin push against sealing;
G, the water in buoyancy tank is drained;
H, carry out sealing maintenance work after stern tube shaft.
The maintenance unit sealing after screw shaft of ship of the present invention, comprises the buoyancy tank of hollow, and the inside of buoyancy tank arranges operation platform, and buoyancy tank top is arranged on hangs code for four of suspending buoyancy tank in midair on ship outer casing; Buoyancy tank is provided with seal groove in a side relative with hull stern, and seal groove and hull stern tube shaft foundry goods and screw propeller is linear adapts are installed after corresponding packing seal in seal groove, and packing seal and ship stern body skin push against sealing.
The method for maintaining sealing after screw shaft of ship of the present invention and device, by with hang code suspention and packing seal near mode, fixed the buoyancy tank of a hollow at screw shaft of ship rear, what buoyancy tank was stable is attached on ship stern shell, the operation platform of buoyancy tank inside, provide sealing maintenance required construction space, thereby the maintenance sealing after screw shaft of ship can be carried out in buoyancy tank, it has thoroughly solved the problem that after screw shaft of ship, sealing is limited by ship stern.Reduce the cost of maintenance, improved the degree of freedom of maintenance.And maintenance process no longer need to be into and out of dock, to keep in repair required work capacity and time and significantly reduce, efficiency improves.
Brief description of the drawings
Fig. 1 is the scheme of installation of the maintenance unit that seals after screw shaft of ship.
Detailed description of the invention
The method for maintaining sealing after screw shaft of ship, comprises the steps:
A, make a buoyancy tank by the required construction space of the maintenance sealing after screw shaft of ship;
B, respectively on the ship skin of buoyancy tank both sides install two and hang code;
C, ship stern is tilted upward adjustment boats and ships, the water surface at stern place is positioned under axis below 200mm;
D, measurement hull stern tube shaft foundry goods and screw propeller are linear;
E, linearly offer seal groove before and after the buoyancy tank according to what measure, and corresponding packing seal is installed in seal groove;
F, by buoyancy tank submerged, be in place, make packing seal and ship stern body skin push against sealing;
G, the water in buoyancy tank is drained;
H, carry out sealing maintenance work after stern tube shaft.
The maintenance unit sealing after screw shaft of ship, as Fig. 1, comprises the buoyancy tank 1 of hollow, and the inside of buoyancy tank arranges operation platform, and buoyancy tank top is arranged on hangs code 2 for four of suspending buoyancy tank in midair on ship outer casing; Buoyancy tank is provided with seal groove in a side relative with hull stern, and seal groove and hull stern tube shaft foundry goods and screw propeller is linear adapts are installed after corresponding packing seal in seal groove, and packing seal and ship stern body skin push against sealing.
Maintenance unit also comprises the water pump being installed on buoyancy tank, and the oral siphon of water pump is communicated with the bottom of buoyancy tank.Water in water tank can be extracted out by water pump.
Buoyancy tank can be divided into upper and lower double-layer structure, and operation platform is superstructure, is positioned at buoyancy tank, supports the middle part of being fixed on buoyancy tank by framing member, disconnects in the surrounding of operation platform and the internal face of buoyancy tank, forms discharge port.It executes the space that buoyancy tank is positioned at operation platform bottom can store certain water, thereby improves the stability of operation platform.
The surrounding of operation platform can arrange fence.Avoid maintainer to fall from surrounding, improve safety.
Claims (5)
1. the method for maintaining sealing after screw shaft of ship, is characterized in that: comprise the steps:
A, make a buoyancy tank by the required construction space of the maintenance sealing after screw shaft of ship;
B, respectively on the ship skin of buoyancy tank both sides install two and hang code;
C, ship stern is tilted upward adjustment boats and ships, the water surface at stern place is positioned under axis below 200mm;
D, measurement hull stern tube shaft foundry goods and screw propeller are linear;
E, linearly offer seal groove before and after the buoyancy tank according to what measure, and corresponding packing seal is installed in seal groove;
F, by buoyancy tank submerged, be in place, make packing seal and ship stern body skin push against sealing;
G, the water in buoyancy tank is drained;
H, carry out sealing maintenance work after stern tube shaft.
2. the maintenance unit sealing after screw shaft of ship, is characterized in that: comprise the buoyancy tank of hollow, the inside of buoyancy tank arranges operation platform, and buoyancy tank top is arranged on hangs code for four of suspending buoyancy tank in midair on ship outer casing; Buoyancy tank is provided with seal groove in a side relative with hull stern, and seal groove and hull stern tube shaft foundry goods and screw propeller is linear adapts are installed after corresponding packing seal in seal groove, and packing seal and ship stern body skin push against sealing.
3. according to the maintenance unit sealing after claim 2 screw shaft of ship, it is characterized in that: maintenance unit also comprises the water pump being installed on buoyancy tank, the oral siphon of water pump is communicated with the bottom of buoyancy tank.
4. according to the maintenance unit sealing after claim 2 screw shaft of ship, it is characterized in that: buoyancy tank is divided into upper and lower double-layer structure, operation platform is superstructure, be positioned at buoyancy tank, support the middle part of being fixed on buoyancy tank by framing member, disconnect in the surrounding of operation platform and the internal face of buoyancy tank, form discharge port.
5. according to the maintenance unit sealing after claim 4 screw shaft of ship, it is characterized in that: the surrounding of operation platform is provided with fence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410517331.2A CN104192266A (en) | 2014-09-30 | 2014-09-30 | Maintenance method and device for ship screw shaft rear seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410517331.2A CN104192266A (en) | 2014-09-30 | 2014-09-30 | Maintenance method and device for ship screw shaft rear seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104192266A true CN104192266A (en) | 2014-12-10 |
Family
ID=52077698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410517331.2A Pending CN104192266A (en) | 2014-09-30 | 2014-09-30 | Maintenance method and device for ship screw shaft rear seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104192266A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101100218A (en) * | 2007-07-30 | 2008-01-09 | 黄润樟 | Mounting method for shaft tube peculiar to vessel |
| KR20080046437A (en) * | 2006-11-22 | 2008-05-27 | 현대중공업 주식회사 | Repair method for stern tube sealing in ship using cofferdam |
| KR20130050843A (en) * | 2011-11-08 | 2013-05-16 | 대우조선해양 주식회사 | Anti-vibrating structure of thruster motor and marine structure having the same |
| CN103253356A (en) * | 2013-06-03 | 2013-08-21 | 重庆交通大学西南水运工程科学研究所 | Large pipe fitting overwater welding floating platform and dry construction environment creating method |
| CN204383721U (en) * | 2014-09-30 | 2015-06-10 | 广州广船国际股份有限公司 | The maintenance unit sealed after a kind of screw shaft of ship |
-
2014
- 2014-09-30 CN CN201410517331.2A patent/CN104192266A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080046437A (en) * | 2006-11-22 | 2008-05-27 | 현대중공업 주식회사 | Repair method for stern tube sealing in ship using cofferdam |
| CN101100218A (en) * | 2007-07-30 | 2008-01-09 | 黄润樟 | Mounting method for shaft tube peculiar to vessel |
| KR20130050843A (en) * | 2011-11-08 | 2013-05-16 | 대우조선해양 주식회사 | Anti-vibrating structure of thruster motor and marine structure having the same |
| CN103253356A (en) * | 2013-06-03 | 2013-08-21 | 重庆交通大学西南水运工程科学研究所 | Large pipe fitting overwater welding floating platform and dry construction environment creating method |
| CN204383721U (en) * | 2014-09-30 | 2015-06-10 | 广州广船国际股份有限公司 | The maintenance unit sealed after a kind of screw shaft of ship |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141210 |
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| RJ01 | Rejection of invention patent application after publication |