CN107289137A - A kind of marine screw shaft sealing device - Google Patents
A kind of marine screw shaft sealing device Download PDFInfo
- Publication number
- CN107289137A CN107289137A CN201710669156.2A CN201710669156A CN107289137A CN 107289137 A CN107289137 A CN 107289137A CN 201710669156 A CN201710669156 A CN 201710669156A CN 107289137 A CN107289137 A CN 107289137A
- Authority
- CN
- China
- Prior art keywords
- stern tube
- tube shaft
- air bag
- ring body
- end cover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- F16J15/46—Sealings with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings
-
- 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
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/164—Sealings between relatively-moving surfaces the sealing action depending on movements; pressure difference, temperature or presence of leaking fluid
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Architecture (AREA)
- Fluid Mechanics (AREA)
- Sealing Devices (AREA)
Abstract
The invention discloses a kind of marine screw shaft sealing device, including stern tube shaft, end cover, circular orientation plate, aerating device, seal ring body；Described end cover is fixed on the outside of stern tube shaft；Described circular orientation plate is arranged on the outside of stern tube shaft；Described seal ring body is connected to the junction of end cover and stern tube shaft；Elastomer is installed between described circular orientation plate and seal ring body；Described aerating device includes piston and inflator；Described piston one end is stretched into inflator, and piston base is fixed on stern tube shaft；Described seal ring body includes compressing plate, air bag, diaphragm seal；Fixation compresses plate and diaphragm seal respectively for described air bag both sides；It is described to compress plate and the bottom of diaphragm seal is fixed on stern tube shaft；Described diaphragm seal side is connected to the inner side of end cover；Described inflator is connected by tracheae with air bag outside.The present invention reaches axial bit shift compensation by air bag expansion, and the sealing property of the present invention is not influenceed.
Description
Technical field
The present invention relates to a kind of marine screw shaft sealing device.
Background technology
At present, marine screw shaft sealing device generally comprises stern tube shaft, end cover, sealing ring；Described sealing ring is fastened on
On stern tube shaft, sealing ring compresses mechanism by elasticity and is connected on the medial surface of end cover, and stern tube shaft is sealed thus by sealing ring
And end cover, but during stern tube shaft long-term use, stern tube shaft can be subjected to displacement axially, stern tube shaft can band dynamic seal ring progress
Displacement, so that the degree that compresses of sealing ring and end cover changes, causes sealing ring not have end cover very well
Sealing effectiveness.
The content of the invention
For above-mentioned the deficiencies in the prior art part, the problem of present invention is solved is：There is provided it is a kind of can nose balance ship
Use stern shaft seal gland.
To solve the above problems, the technical scheme that the present invention takes is as follows：
A kind of marine screw shaft sealing device, including stern tube shaft, end cover, circular orientation plate, aerating device, seal ring body；It is described
End cover be fixed on the outside of stern tube shaft；Described circular orientation plate is arranged on the outside of stern tube shaft；Described seal ring body is connected to
The junction of end cover and stern tube shaft；Elastomer is installed between described circular orientation plate and seal ring body；Described inflation
Device includes piston and inflator；Described piston one end is stretched into inflator, and piston base is fixed on stern tube shaft；Described sealing ring
Body includes compressing plate, air bag, diaphragm seal；Fixation compresses plate and diaphragm seal respectively for described air bag both sides；It is described compress plate and
The bottom of diaphragm seal is fixed on stern tube shaft；Described diaphragm seal side is connected to the inner side of end cover；Described inflator passes through
Tracheae is connected with air bag outside.
Further, space is provided between described air bag bottom and stern tube shaft.
Further, cavity is provided with described circular orientation plate；Described tracheae is arranged in the cavity of circular orientation plate.
Further, described diaphragm seal is made up of elastomeric material.
Beneficial effects of the present invention
The present invention devises aerating device and seal ring body, when minute movement occurs for the axial direction of stern tube shaft, and stern tube shaft can band piston
Move, while stern tube shaft should be able to drive seal ring body to carry out axial minute movement, but now piston promotes inflator, inflator
Tracheae can be inflated, the gas of tracheae is delivered in the air bag of seal ring body, compensation is expanded by the axial direction inflation of air bag
The axial displacement of seal ring body, so that the axial direction of seal ring body is not subjected to displacement, but air bag is expanded, also quite
In displacement, but the position of diaphragm seal does not have counter changing, and axial bit shift compensation is reached by air bag expansion, and this is not influenceed
The sealing property of invention.
Brief description of the drawings
Fig. 1 is sectional view of the invention.
The mplifying structure schematic diagram that Fig. 2 is A in Fig. 1 of the present invention.
Embodiment
Present invention is described in further detail below in conjunction with the accompanying drawings.
As illustrated in fig. 1 and 2, a kind of marine screw shaft sealing device, including stern tube shaft 1, end cover 2, circular orientation plate 3, fill
Device of air 4, seal ring body 5.Described end cover 2 is fixed on the outside of stern tube shaft 1.Described circular orientation plate 3 is arranged on stern tube shaft 1
Outside.Described seal ring body 5 is connected to the junction of end cover 2 and stern tube shaft 1.Described circular orientation plate 3 and sealing ring
Elastomer 6 is installed between body 5.Described aerating device 4 includes piston 41 and inflator 42.Gas is stretched into described one end of piston 41
In cylinder 42, the bottom of piston 41 is fixed on stern tube shaft 1.Described seal ring body 5 includes compressing plate 51, air bag 52, diaphragm seal 53.Support
Pressing plate 51, air bag 52, diaphragm seal 53 structure in a ring.Fixation compresses plate 51 and diaphragm seal respectively for the described both sides of air bag 52
53.It is described to compress plate 51 and the bottom of diaphragm seal 53 is fixed on stern tube shaft 1.The described side of diaphragm seal 53 is connected to sealed end
The inner side of lid 2.Described inflator 42 is connected by tracheae 7 with the outside of air bag 52.Further preferably, the described bottom of air bag 52 and
Space is provided between stern tube shaft 1, the expansion for being easy to air bag 52 is arranged such.Further preferably, for ease of the arrangement path of tracheae 7,
Multiple cavitys 31 are provided with distribution in order, described circular orientation plate 3, described tracheae 7 is arranged on the cavity of circular orientation plate 3
In 31.Further preferably, described diaphragm seal 53 is made up of elastomeric material.
The present invention devises aerating device 4 and seal ring body 5, when minute movement occurs for the axial direction of stern tube shaft 1, the meeting of stern tube shaft 1
Band piston 41 is moved, while stern tube shaft 1 should be able to drive seal ring body 5 to carry out axial minute movement, but now piston
41 promote inflator 42, and inflator 42 can be inflated to tracheae 7, and the gas of tracheae 7 is delivered in the air bag 52 of seal ring body 5, be led to
The axial direction inflation for crossing air bag 52 expands the axial displacement of compensation sealing ring body 5, so that the axial direction of seal ring body 5 does not occur
Displacement, but air bag 52 is expanded, and also corresponds to displacement, but the position of diaphragm seal 53 does not have counter changing, and passes through gas
The expansion of capsule 52 reaches axial bit shift compensation, and the sealing property of the present invention is not influenceed.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God is with principle, and any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (4)
1. a kind of marine screw shaft sealing device, it is characterised in that including stern tube shaft, end cover, circular orientation plate, aerating device,
Seal ring body；Described end cover is fixed on the outside of stern tube shaft；Described circular orientation plate is arranged on the outside of stern tube shaft；Described is close
Seal ring body is connected to the junction of end cover and stern tube shaft；Install flexible between described circular orientation plate and seal ring body
Body；Described aerating device includes piston and inflator；Described piston one end is stretched into inflator, and piston base is fixed on stern tube shaft
On；Described seal ring body includes compressing plate, air bag, diaphragm seal；Fixation compresses plate and diaphragm seal respectively for described air bag both sides；
It is described to compress plate and the bottom of diaphragm seal is fixed on stern tube shaft；Described diaphragm seal side is connected to the inner side of end cover；
Described inflator is connected by tracheae with air bag outside.
2. marine screw shaft sealing device according to claim 1, it is characterised in that between described air bag bottom and stern tube shaft
Provided with space.
3. marine screw shaft sealing device according to claim 1, it is characterised in that provided with sky in described circular orientation plate
Chamber；Described tracheae is arranged in the cavity of circular orientation plate.
4. marine screw shaft sealing device according to claim 1, it is characterised in that described diaphragm seal is by elastomeric material system
Into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710669156.2A CN107289137B (en) | 2017-08-08 | 2017-08-08 | A kind of marine screw shaft sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710669156.2A CN107289137B (en) | 2017-08-08 | 2017-08-08 | A kind of marine screw shaft sealing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107289137A true CN107289137A (en) | 2017-10-24 |
| CN107289137B CN107289137B (en) | 2019-01-15 |
Family
ID=60105384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710669156.2A Active CN107289137B (en) | 2017-08-08 | 2017-08-08 | A kind of marine screw shaft sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107289137B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591478A (en) * | 2018-05-15 | 2018-09-28 | 江苏海川卓越密封材料有限公司 | A kind of sealing element docking oil sealing for mechanical oil pipe |
| CN109027243A (en) * | 2018-08-16 | 2018-12-18 | 东台友铭船舶配件有限公司 | A kind of radial and axial double compression type stern shaft seal glands |
| CN109050860A (en) * | 2018-08-16 | 2018-12-21 | 东台友铭船舶配件有限公司 | A kind of stern shaft seal gland |
| CN109099162A (en) * | 2018-08-16 | 2018-12-28 | 东台友铭船舶配件有限公司 | A kind of reaction force squash type stern shaft seal gland |
| CN109139916A (en) * | 2018-11-13 | 2019-01-04 | 东台市岳东橡胶密封件厂 | A kind of flexible compensation formula marine screw shaft sealing device |
| CN109139922A (en) * | 2018-08-16 | 2019-01-04 | 东台友铭船舶配件有限公司 | A kind of alarm type stern shaft seal gland |
| CN109357017A (en) * | 2018-11-13 | 2019-02-19 | 东台市岳东橡胶密封件厂 | A kind of two-way abutting formula marine screw shaft sealing device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2152117Y (en) * | 1993-03-19 | 1994-01-05 | 王士虎 | Tail shaft sealing ring with bellows |
| JPH07242198A (en) * | 1994-03-04 | 1995-09-19 | Nippon Marine Techno Kk | Stern tube sealing device |
| JP2005041348A (en) * | 2003-07-22 | 2005-02-17 | Kobelco Eagle Marine Engineering Co Ltd | Shaft seal device and shaft seal method for propeller shaft for ship |
| CN103335109A (en) * | 2013-06-26 | 2013-10-02 | 东台友铭船舶配件有限公司 | Pneumatic sealing device capable of allowing stern shaft to rotate |
| CN204226651U (en) * | 2014-11-20 | 2015-03-25 | 九江翔升造船有限公司 | A kind of ship stern seal arrangement |
| CN106122655A (en) * | 2016-08-30 | 2016-11-16 | 洛阳双瑞特种装备有限公司 | A kind of air sac sealing sleeve expansion joint |
-
2017
- 2017-08-08 CN CN201710669156.2A patent/CN107289137B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2152117Y (en) * | 1993-03-19 | 1994-01-05 | 王士虎 | Tail shaft sealing ring with bellows |
| JPH07242198A (en) * | 1994-03-04 | 1995-09-19 | Nippon Marine Techno Kk | Stern tube sealing device |
| JP2005041348A (en) * | 2003-07-22 | 2005-02-17 | Kobelco Eagle Marine Engineering Co Ltd | Shaft seal device and shaft seal method for propeller shaft for ship |
| CN103335109A (en) * | 2013-06-26 | 2013-10-02 | 东台友铭船舶配件有限公司 | Pneumatic sealing device capable of allowing stern shaft to rotate |
| CN204226651U (en) * | 2014-11-20 | 2015-03-25 | 九江翔升造船有限公司 | A kind of ship stern seal arrangement |
| CN106122655A (en) * | 2016-08-30 | 2016-11-16 | 洛阳双瑞特种装备有限公司 | A kind of air sac sealing sleeve expansion joint |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591478A (en) * | 2018-05-15 | 2018-09-28 | 江苏海川卓越密封材料有限公司 | A kind of sealing element docking oil sealing for mechanical oil pipe |
| CN109027243A (en) * | 2018-08-16 | 2018-12-18 | 东台友铭船舶配件有限公司 | A kind of radial and axial double compression type stern shaft seal glands |
| CN109050860A (en) * | 2018-08-16 | 2018-12-21 | 东台友铭船舶配件有限公司 | A kind of stern shaft seal gland |
| CN109099162A (en) * | 2018-08-16 | 2018-12-28 | 东台友铭船舶配件有限公司 | A kind of reaction force squash type stern shaft seal gland |
| CN109139922A (en) * | 2018-08-16 | 2019-01-04 | 东台友铭船舶配件有限公司 | A kind of alarm type stern shaft seal gland |
| CN109027243B (en) * | 2018-08-16 | 2019-12-17 | 东台友铭船舶配件有限公司 | Radial and axial double-compression type stern shaft sealing device |
| CN109050860B (en) * | 2018-08-16 | 2020-05-26 | 东台友铭船舶配件有限公司 | Stern shaft sealing device |
| CN109139916A (en) * | 2018-11-13 | 2019-01-04 | 东台市岳东橡胶密封件厂 | A kind of flexible compensation formula marine screw shaft sealing device |
| CN109357017A (en) * | 2018-11-13 | 2019-02-19 | 东台市岳东橡胶密封件厂 | A kind of two-way abutting formula marine screw shaft sealing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107289137B (en) | 2019-01-15 |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201123 Address after: 224200 Jiangsu province Yancheng City Tun Cun, Dongtai City five strong town three groups Patentee after: Jiangsu Deli Sealing Technology Co., Ltd Address before: 224200 Jiangsu province Yancheng City Tun Cun, Dongtai City five strong town three groups Patentee before: DONGTAI YUEDONG RUBBER SEALING MEMBER FACTORY |