CN107269839A - A kind of stern tube bearing water lubrication sealing structure - Google Patents
A kind of stern tube bearing water lubrication sealing structure Download PDFInfo
- Publication number
- CN107269839A CN107269839A CN201710368121.5A CN201710368121A CN107269839A CN 107269839 A CN107269839 A CN 107269839A CN 201710368121 A CN201710368121 A CN 201710368121A CN 107269839 A CN107269839 A CN 107269839A
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- Prior art keywords
- ring
- sternpost
- seal
- type
- sealing
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Devices (AREA)
- Sealing Of Bearings (AREA)
Abstract
The invention discloses a kind of stern tube bearing water lubrication sealing structure, water lubriucated bearing and epoxy resin set including helical axis, preceding sternpost and between helical axis and preceding sternpost, the tail end of water lubriucated bearing is provided with the ring flange of radial development, be looped around the periphery of ring flange be provided be close to walk before sternpost breech face gasket seal and the shafting seal that is fixed on above gasket seal, the outer of shafting seal and ring flange intermarginal be additionally provided with O-ring seal.This sealing structure is in helical axis and the tail end of preceding sternpost link position, the sealing of water lubriucated bearing open side is realized by shafting seal, the sealing structure passes through sealing gasket and preceding sternpost tail end sealing in open side, and pass through intermarginal sealing outside O-ring seal and the ring flange of water lubriucated bearing extension, the installation process of this sealing structure is connected through a screw thread completion, without passing through welding in installation process, the damage to hull can be reduced, preferably ensure sealing effectiveness, this is invented for stern tube shaft system field of sealing technology.
Description
Technical field
The present invention relates to stern tube shaft system field of sealing technology, more particularly to a kind of stern tube bearing water lubrication sealing structure.
Background technology
Marine shafting is commonly divided into two kinds by the lubricating system classification of its stern tube bearing axle envelope：Oil lubrication shafting and Shui Run
Slide-bar system.
It is more at present to use oil lubrication shafting, and water lubrication shafting is corresponding at present with less, but in international community
Increasingly pay attention in the environment of pollution problem, the application that water lubrication shaft ties up to shipbuilding industry has growing number of trend.
For oil lubrication shafting, the Sealing Technology between its bearing axle envelope and stern pipe and structure has been mature on the whole.And for
Water lubrication shafting, the Sealing Technology between its bearing axle envelope and stern pipe and structure, due to corresponding with less, and water lubrication shafting
Structural shape is various, at present also in space state.
Current water lubrication shafting generally uses open type lubricating system, without rear shaft seal, axle envelope before only setting.Part water
Lubrication shafting has monoblock type stern pipe, and the Sealing Technology of this form and oil lubrication are essentially identical.And part water lubrication shafting does not have
Monoblock type stern pipe, but the stern pipe of rolled plate and structure welding, bearing are directly to be installed to by epoxy in preceding hub structure,
Preceding sealing device is mounted on fore bearing forward flange end face.This structure is to have certain ratio in casting process due to epoxy
What example was shunk, i.e., epoxy is without close property.If not taking corresponding seal approach herein, outside seawater can be by preceding
Epoxy at bearing enters cabin, processing is will be unable to after ship launching, or even there is certain navigation safety risk.
The content of the invention
It is an object of the invention to provide a kind of more convenient installation operation simple in construction and the more reliable stern pipe of sealing property
Bearing water lubrication sealing structure.
The technical solution used in the present invention is：
A kind of stern tube bearing water lubrication sealing structure, including helical axis, the preceding sternpost installed in spiral shaft tail end and be located at
Water lubriucated bearing and epoxy resin set between helical axis and preceding sternpost, epoxy resin set are filled in water lubriucated bearing and preceding sternpost
In gap, the tail end of water lubriucated bearing is provided with the ring flange of radial development, is bolted between ring flange and preceding sternpost, flange
Between disk and preceding sternpost be provided with sealing ring, be looped around ring flange periphery be provided be close to walk before sternpost breech face gasket seal and
It is fixed on the shafting seal above gasket seal, the outer of shafting seal and ring flange intermarginal is additionally provided with O-ring seal.
The improvement of technical solution of the present invention is further used as, shafting seal includes the ring-type seat board for being close to gasket seal,
Before ring-type seat board is fixed on by some hexagon socket head cap screws ring-type pressing plate, ring-type pressure are additionally provided with the tail end of sternpost, ring-type seat board
The tail end of sternpost before plate is fixed on by some bolts through ring-type pressing plate and ring-type seat board, 0 type sealing ring is located in ring-type
The outer rim of ring flange is relied between the inner side of pressing plate and ring-type seat board, on the inside of O-ring seal.
The improvement of technical solution of the present invention is further used as, ring-type seat board is close to the inner side of ring-type pressing plate provided with inside inclination
Oblique groove, O-ring seal is placed in groove.
It is further used as the improvement of technical solution of the present invention, the internal diameter of ring-type seat board and ring-type pressing plate is equal with external diameter,
The thickness of ring-type seat board is more than the thickness of ring-type pressing plate.
It is further used as being coated with anti-corrosion paint outside the improvement of technical solution of the present invention, ring-type seat board and ring-type pressing plate
Layer.
Beneficial effects of the present invention：This stern tube bearing water lubrication sealing structure is in helical axis and the tail of preceding sternpost link position
End, the sealing of water lubriucated bearing open side is realized by shafting seal, the sealing structure open side by sealing gasket with before
Sternpost tail end sealing, and pass through intermarginal sealing, the peace of this sealing structure outside O-ring seal and the ring flange of water lubriucated bearing extension
Dress process is connected through a screw thread in completion, installation process without that by welding, can reduce the damage to hull, preferably ensure close
Seal effect.
Brief description of the drawings
The invention will be further described below in conjunction with the accompanying drawings：
Fig. 1 is overall structure diagram of the embodiment of the present invention；
Fig. 2 is that status architecture schematic diagram is fixedly mounted in center shafting of embodiment of the present invention seal；
Fig. 3 is center shafting seal configuration schematic diagram of the embodiment of the present invention.
Embodiment
1~Fig. 3 of reference picture, the present invention be a kind of stern tube bearing water lubrication sealing structure, including helical axis 60, installed in spiral shell
The preceding sternpost 20 of the tail end of spin axis 60 and water lubriucated bearing 30 and epoxy resin set 40 between helical axis 60 and preceding sternpost 20, ring
Oxygen tree fat set 40 is filled in water lubriucated bearing 30 and in the gap of preceding sternpost 20, the tail end of water lubriucated bearing 30 is provided with radial development
Ring flange 31, be bolted between ring flange 31 and preceding sternpost 20, between ring flange 31 and preceding sternpost 20 be provided with sealing ring 50,
The periphery for being looped around ring flange 31 is provided with the gasket seal 11 for the breech face for being close to walk preceding sternpost 20 and is fixed on gasket seal 11
The shafting seal 10 of top, the outer of shafting seal 10 and ring flange 31 intermarginal is additionally provided with O-ring seal 12.
This stern tube bearing water lubrication sealing structure helical axis 60 and the preceding link position of sternpost 20 tail end, it is close by shafting
Sealing 10 realizes the sealing of the open side of water lubriucated bearing 30, and the sealing structure passes through sealing gasket and the preceding tail end of sternpost 20 in open side
Sealing, and the intermarginal sealing, the installation of this sealing structure outside of ring flange 31 extended by O-ring seal 12 and water lubriucated bearing 30
Process is connected through a screw thread in completion, installation process without that by welding, can reduce the damage to hull, preferably ensures sealing
Effect.
As the preferred embodiment of the present invention, shafting seal 10 includes the ring-type seat board 13 for being close to gasket seal 11,
Before ring-type seat board 13 is fixed on by some hexagon socket head cap screws 15 ring-type pressing plate is additionally provided with the tail end of sternpost 20, ring-type seat board 13
14, the tail end of sternpost 20,0 before ring-type pressing plate 14 is fixed on by some bolts 16 through ring-type pressing plate 14 and ring-type seat board 13
Type sealing ring 12 is located between the inner side of ring-type pressing plate 14 and ring-type seat board 13, and the inner side of O-ring seal 12 relies on ring flange
31 outer rim.
As the preferred embodiment of the present invention, the inner side that ring-type seat board 13 is close to ring-type pressing plate 14 is oblique provided with inwardly rolling
Groove, O-ring seal 12 is placed in groove.
As the preferred embodiment of the present invention, the internal diameter of ring-type seat board 13 and ring-type pressing plate 14 is equal with external diameter, ring
The thickness of shape seat board 13 is more than the thickness of ring-type pressing plate 14.
As the preferred embodiment of the present invention, anti-corrosion paint is coated with outside ring-type seat board 13 and ring-type pressing plate 14
Layer.
This sealing structure is made up of the shafting seal 10 being mainly made up of ring-type pressing plate 14 and ring-type seat board 13, axle
It is the tail end of sternpost 20 before seal 10 is fixed on, and in outer intermarginal realization of the inner side by O-ring seal 12 and ring flange 31
Sealing.
The form that the ring-type seat board 13 of bilayer superposition is combined with ring-type pressing plate 14, can cause the fixation of ring-type seat board 13 more
It is stable, ring-type seat board 13 can be effectively increased in circumferential frictional force, it is to avoid the circumference of ring-type seat board 13 is rocked.
Shafting seal 10 is formed by stacking by the ring-type seat board 13 positioned at internal layer and the ring-type pressing plate 14 positioned at outer layer, and
Cut is set in the outside of ring-type seat board 13, O-ring seal 12 is fixed by the cut sandwiched, sealing effectiveness is both can guarantee that,
It is avoided that O-ring seal 12 is destroyed because of excessive compression again.
To reduce the cost of manufacture of shafting seal 10 and reaching anti-seawater corrosion effect, ring-type seat board 13 and ring-type pressing plate
14 use common carbon steel material, then carry out anti-seawater corrosion processing by applying the honest paint of assistant after sanding, so as to effectively reach
Reduction cost of manufacture, and anti-seawater corrosion effect.
To avoid welding manner heating from causing the destructive lesion of unrepairable to seat board corrosion-inhibiting coating and other seals,
Do not use welding manner to connect between ring-type seat board 13 and Ship Structure, but use with brill mounting hole in bolted mode
Install, so as to effectively reach protective coating and the purpose of seal.
Certainly, the invention is not limited to above-mentioned embodiment, and those skilled in the art are without prejudice to originally
Equivalent variations or replacement can be also made on the premise of spirit, these equivalent modifications or replacement are all contained in the application right
It is required that in limited range.
Claims (5)
1. a kind of stern tube bearing water lubrication sealing structure, it is characterised in that：Including helical axis, installed in the spiral shaft tail end
Preceding sternpost and water lubriucated bearing and epoxy resin set between helical axis and preceding sternpost, the epoxy resin set are filled in water profit
In the gap of plain besring and preceding sternpost, the tail end of the water lubriucated bearing is provided with the ring flange of radial development, the ring flange with
It is bolted between preceding sternpost, sealing ring is provided between the ring flange and preceding sternpost, the periphery for being looped around the ring flange is set
There are the gasket seal of the breech face of sternpost and the shafting seal being fixed on above gasket seal before being close to walk, the shafting sealing
The outer of part and ring flange intermarginal is additionally provided with O-ring seal.
2. stern tube bearing water lubrication sealing structure according to claim 1, it is characterised in that：The shafting seal includes
It is close to the ring-type seat board of gasket seal, the tail end of sternpost, described before the ring-type seat board is fixed on by some hexagon socket head cap screws
Ring-type pressing plate is additionally provided with ring-type seat board, the ring-type pressing plate is fixed by some bolts through ring-type pressing plate and ring-type seat board
In the tail end of preceding sternpost, the 0 type sealing ring is located between the inner side of ring-type pressing plate and ring-type seat board, the O-ring seal
Inner side relies on the outer rim of ring flange.
3. stern tube bearing water lubrication sealing structure according to claim 2, it is characterised in that：The ring-type seat board is close to ring
The inner side of shape pressing plate is provided with the inclined groove in inside side, and the O-ring seal is placed in groove.
4. stern tube bearing water lubrication sealing structure according to claim 2, it is characterised in that：The ring-type seat board and ring-type
The internal diameter of pressing plate is equal with external diameter, and the thickness of the ring-type seat board is more than the thickness of ring-type pressing plate.
5. stern tube bearing water lubrication sealing structure according to claim 2, it is characterised in that：The ring-type seat board and ring-type
Rust preventive oil enamelled coating is coated with outside pressing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710368121.5A CN107269839B (en) | 2017-05-23 | 2017-05-23 | A kind of stern tube bearing water lubrication sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710368121.5A CN107269839B (en) | 2017-05-23 | 2017-05-23 | A kind of stern tube bearing water lubrication sealing structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107269839A true CN107269839A (en) | 2017-10-20 |
| CN107269839B CN107269839B (en) | 2018-11-30 |
Family
ID=60064201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710368121.5A Active CN107269839B (en) | 2017-05-23 | 2017-05-23 | A kind of stern tube bearing water lubrication sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107269839B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109466697A (en) * | 2018-10-30 | 2019-03-15 | 广船国际有限公司 | A kind of ship reverse-filling drainage system |
| CN110758676A (en) * | 2019-10-15 | 2020-02-07 | 江苏新扬子造船有限公司 | Epoxy tightness construction process method for stern tube |
| CN111220336A (en) * | 2020-01-15 | 2020-06-02 | 广州文冲船厂有限责任公司 | Device and method for detecting tightness of water lubrication bearing stern tube and shaft seal |
| CN111516860A (en) * | 2020-04-30 | 2020-08-11 | 中国直升机设计研究所 | Helicopter flight control system transmission mechanism with waterproof sealing function |
| CN112524151A (en) * | 2019-09-18 | 2021-03-19 | 斯凯孚公司 | Rolling bearing, in particular hybrid rolling bearing, for a refrigerant compressor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3726531A (en) * | 1970-12-07 | 1973-04-10 | American Metal Bearing Co | Stern tube seal |
| JP2002340199A (en) * | 2001-05-11 | 2002-11-27 | Eagle Ind Co Ltd | Stern pipe shaft seal device |
| CN2776842Y (en) * | 2005-09-19 | 2006-05-03 | 重庆湖海轴系科技有限公司 | Water lubricated ship zingle bearing tail shaft tail pipe device |
| CN203666956U (en) * | 2013-11-13 | 2014-06-25 | 郭仰威 | Tail shaft grounding and sealing assembly for ship |
| CN204415702U (en) * | 2014-11-26 | 2015-06-24 | 宁波东方船舶设计院有限公司 | Screw shaft pipe structure |
| CN206889665U (en) * | 2017-05-23 | 2018-01-16 | 广州文冲船厂有限责任公司 | A kind of stern tube bearing water lubrication sealing structure |
-
2017
- 2017-05-23 CN CN201710368121.5A patent/CN107269839B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3726531A (en) * | 1970-12-07 | 1973-04-10 | American Metal Bearing Co | Stern tube seal |
| JP2002340199A (en) * | 2001-05-11 | 2002-11-27 | Eagle Ind Co Ltd | Stern pipe shaft seal device |
| CN2776842Y (en) * | 2005-09-19 | 2006-05-03 | 重庆湖海轴系科技有限公司 | Water lubricated ship zingle bearing tail shaft tail pipe device |
| CN203666956U (en) * | 2013-11-13 | 2014-06-25 | 郭仰威 | Tail shaft grounding and sealing assembly for ship |
| CN204415702U (en) * | 2014-11-26 | 2015-06-24 | 宁波东方船舶设计院有限公司 | Screw shaft pipe structure |
| CN206889665U (en) * | 2017-05-23 | 2018-01-16 | 广州文冲船厂有限责任公司 | A kind of stern tube bearing water lubrication sealing structure |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109466697A (en) * | 2018-10-30 | 2019-03-15 | 广船国际有限公司 | A kind of ship reverse-filling drainage system |
| CN112524151A (en) * | 2019-09-18 | 2021-03-19 | 斯凯孚公司 | Rolling bearing, in particular hybrid rolling bearing, for a refrigerant compressor |
| CN110758676A (en) * | 2019-10-15 | 2020-02-07 | 江苏新扬子造船有限公司 | Epoxy tightness construction process method for stern tube |
| CN110758676B (en) * | 2019-10-15 | 2021-06-25 | 江苏新扬子造船有限公司 | Epoxy tightness construction process method for stern tube |
| CN111220336A (en) * | 2020-01-15 | 2020-06-02 | 广州文冲船厂有限责任公司 | Device and method for detecting tightness of water lubrication bearing stern tube and shaft seal |
| CN111516860A (en) * | 2020-04-30 | 2020-08-11 | 中国直升机设计研究所 | Helicopter flight control system transmission mechanism with waterproof sealing function |
| CN111516860B (en) * | 2020-04-30 | 2023-06-27 | 中国直升机设计研究所 | Helicopter flight control system transmission mechanism with waterproof sealing function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107269839B (en) | 2018-11-30 |
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