CN201187580Y - Metal composite ring type water lubricating trailing axle seal device - Google Patents
Metal composite ring type water lubricating trailing axle seal device Download PDFInfo
- Publication number
- CN201187580Y CN201187580Y CNU2008200348575U CN200820034857U CN201187580Y CN 201187580 Y CN201187580 Y CN 201187580Y CN U2008200348575 U CNU2008200348575 U CN U2008200348575U CN 200820034857 U CN200820034857 U CN 200820034857U CN 201187580 Y CN201187580 Y CN 201187580Y
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Abstract
The utility model relates to a composite metal and ring type water lubricating screw shaft sealing device. On the basis of the water lubricating screw shaft sealing device used by prior ships, and aiming at solving the defects of various water lubricating screw shaft sealing devices that the service performance is affected because the connection between a dynamic (static) ring seat of a dynamic ring or a static ring and the sleeve pushing dynamic sealing points of a plastic compensation part is easy to be filled with silt and scale deposit in waters with large proportion of silt and various impurities, a composite metal ring is arranged between the static ring seat and the static ring, therefore, the dynamic sealing points in the device are eliminated, and the use defect of the device in the waters with large proportion of silt and various impurities is solved.
Description
Affiliated technical field
The utility model relates to marine shafting stern seal of tube equipment, belongs to the technical field of marine shafting corollary equipment.
Background technique
At the used water lubrication stern shaft seal gland of marine shafting stern pipe stem, normally forms by stationary ring part, rotating ring part and elastic thrust compensated part, carry out that screw shaft of ship passes that the hull part is static, during rotation to the sealing of water.But contain the big and impure many waters of silt ratio at some, the problem that the water lubrication stern shaft seal gland of patterns more commonly used runs into easily is to have gap and junction between the pushing sleeve dynamic sealing point during moving (quiet) ring seat in rotating ring (or stationary ring) part compensates with elastic thrust, after using the long period, sometimes easily entered or water impurity is easily formed incrustation scale in the dynamic sealing point junction by the tiny sand grains in the silt, form part wearing and tearing of dynamic sealing point place and elastic thrust partial spring thrust-compensating effect inefficacy, cause between the seepage of water between seal point and the dynamic and static ring sealing pair and leak.
For addressing this problem; common way is the boats and ships shutdown maintenances; utilize the pneumatic tyre in the water lubrication stern shaft seal gland partly to block outboard water; pull down moving (quiet) loop section and remove the silt of incrustation scale, sand grains and spring section, the O type circle in the dynamic sealing point in case of necessity again between (quiet) ring seat and the pushing sleeve more moves.
Chinese patent (patent No.: ZL 2,006 2 0068327.3), a kind of rotating ring part and the elastic thrust compensated part rubber ring type water lubrication stern shaft seal gland that two combine into one have been proposed, make rotating seat and thrust-compensating place stationary seal point, for solving the influence of silt invasion and the fouling of water impurity, provide a kind of novel practical structural type.
Summary of the invention
The purpose of this utility model provides a kind of, thrust-compensating partly is the composition metal ring type water lubrication stern shaft seal gland of phy symbol Ω shape, stationary ring part and thrust-compensating part stationary seal point in the device, silt is invaded and the influence of water impurity fouling effectively to prevent to be in operation the water lubrication seal arrangement.
The technological scheme that the utility model technical solution problem is adopted is: be provided with one and be the composition metal ring of phy symbol Ω shape in the middle of the water lubrication stern shaft seal gland, metal ring itself also is an obturator, metal ring one end and hermetic seal seat link, and an end and stationary seat link.The thrust-compensating of water sealing device by composition metal ring compression a certain amount of after, the elastic force that forms carries out the tracking and compensating between stationary ring and rotating ring friction pair, owing to connecting between composition metal ring and hermetic seal seat and the stationary seat, just do not have dynamic sealing point between such three parts for being fixedly connected.
The beneficial effects of the utility model are: replaced the pushing sleeve in the water lubrication seal arrangement and made the used spring of stretch compensation with the composition metal ring, make stationary seal point between the device thrust-compensating, and the elastic force that can carry out between the dynamic and static ring sealing pair compensates automatically, prevents that effectively silt invasion and the fouling of water impurity from influencing the dynamic sealing point junction.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples:
Accompanying drawing is composition metal ring type water lubrication stern shaft seal gland embodiment's a vertical semi-section tectonic maps.
Among the figure 1, the sand prevention circle, 2, the sand prevention lid, 3, screw, 4, packing ring, 5, pneumatic tyre gland, 6, spacer ring, 7, pneumatic tyre, 8, hermetic seal seat, 9, pipe joint, 10, clamping ring, 11, bolt, 12, packing ring, 13, nut, 14, supported spring, 15, sealing coats cloth, 16, the bridge joint spring, 17, shell combination spring, 18, stationary seat, 19, pin, 20, stationary seal ring, 21, splash guard, 22, screw, 23, sealing rotating ring, 24, bolt, 25, packing ring, 26, nut, 27, locating stud, 28, retaining ring, 29, bolt, 30, packing ring, 31, nut.
Embodiment
In the drawings, sand prevention circle (1), sand prevention lid (2), screw (3), packing ring (4), pneumatic tyre gland (5), spacer ring (6), pneumatic tyre (7), hermetic seal seat (8), pipe joint (9) have been formed sand prevention pneumatic tyre hermetic unit with the mode of mechanical coupling.
Supported spring (14), sealing coating cloth (15), bridge joint spring (16), shell combination spring (17) have been formed the composition metal ring of outward appearance phy symbol Ω shape.Composition metal ring after the combination has covered supported spring because sealing coats cloth, has formed a seal, and the composition metal ring has formed suitable support strength by which floor spring assembly simultaneously, can form elastic force to a certain degree after compression.The composition metal ring is connected with hermetic seal seat (8) by clamping ring (10), bolt (11), packing ring (12), nut (13) one ends of split type, one end partly connects with the stationary ring of being made up of stationary seat (18), pin (19), stationary seal ring (21), after the special tool that re-uses setting necessarily compresses the composition metal ring of Ω shape, sand prevention pneumatic tyre part to stationary ring part just forms an integral body, middle no seal point like this, effectively prevent the influence of silt invasion and impurity fouling, and device has automatic elastic force tracking and compensating function.
According to the Figure of description structural representation, when real ship uses, with the whole sand prevention pneumatic tyre after the assembling, after stationary ring partly overlaps and puts into stern tube shaft, be fixed by bolts on the ship stern tube shaft tube wall, fix splash guard (21) with screw (22), again will be by sealing rotating ring (23), bolt (24), packing ring (25), nut (26), locating stud (27), the rotating ring part that retaining ring (28) is formed, be sleeved on the stern tube shaft, sealing rotating ring and stationary ring face are fitted, use bolt (29) then, nut (30) partly is fastened on rotating ring on the stern tube shaft, connect the external part of each pipe joint at last, just can implement the utility model---composition metal ring type water lubrication stern shaft seal gland.
Claims (4)
1, a kind of composition metal ring type water lubrication stern shaft seal gland is characterized by by the sealing of sand prevention circle inflatable pneumatic tyre to become with mechanical pattern sealing group, and in the face of the propeller direction, pneumatic tyre sealing and mechanical pattern sealing integral assembling are on screw shaft of ship.
2, composition metal ring type water lubrication stern shaft seal gland according to claim 1 is characterized in that mechanical pattern hermetic unit mainly is made up of composition metal ring, clamping ring, stationary seat, stationary seal ring, sealing rotating ring.
3, composition metal ring type water lubrication stern shaft seal gland according to claim 1, it is characterized in that composition metal ring outward appearance is a phy symbol Ω shape, and combine by built-in supported spring, sealing coating cloth, bridge joint spring, several parts of shell combination spring.
4, composition metal ring type water lubrication stern shaft seal gland according to claim 1 is characterized in that the elastic compensating thrust in the device is formed by composition metal ring compression back.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200348575U CN201187580Y (en) | 2008-04-25 | 2008-04-25 | Metal composite ring type water lubricating trailing axle seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200348575U CN201187580Y (en) | 2008-04-25 | 2008-04-25 | Metal composite ring type water lubricating trailing axle seal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201187580Y true CN201187580Y (en) | 2009-01-28 |
Family
ID=40310602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200348575U Expired - Lifetime CN201187580Y (en) | 2008-04-25 | 2008-04-25 | Metal composite ring type water lubricating trailing axle seal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201187580Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102147013A (en) * | 2010-02-08 | 2011-08-10 | 祥景精机股份有限公司 | Air bag-type leakage-proof device |
| CN102619983A (en) * | 2012-03-31 | 2012-08-01 | 无锡市东舟船舶附件有限公司 | High-pressure-resistant water-lubrication rudder system sealing device with sealing parts replaceable on site |
| CN103759011A (en) * | 2014-01-28 | 2014-04-30 | 中国船舶重工集团公司第七0四研究所 | Integral type displacement compensation elastic part for tail shaft sealing device and manufacturing method of integral type displacement compensation elastic part |
| CN106321855A (en) * | 2016-10-19 | 2017-01-11 | 无锡市宏源弹性器材有限公司 | Stern shaft sealing device |
| CN106704597A (en) * | 2017-03-25 | 2017-05-24 | 无锡市翱宇特新科技发展有限公司 | Stern shaft lubricating and sealing device |
| CN109973656A (en) * | 2019-04-24 | 2019-07-05 | 东台船用配件有限公司 | From centering stern shaft seal gland |
-
2008
- 2008-04-25 CN CNU2008200348575U patent/CN201187580Y/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102147013A (en) * | 2010-02-08 | 2011-08-10 | 祥景精机股份有限公司 | Air bag-type leakage-proof device |
| CN102619983A (en) * | 2012-03-31 | 2012-08-01 | 无锡市东舟船舶附件有限公司 | High-pressure-resistant water-lubrication rudder system sealing device with sealing parts replaceable on site |
| CN102619983B (en) * | 2012-03-31 | 2014-08-20 | 无锡市东舟船舶附件有限公司 | High-pressure-resistant water-lubrication rudder system sealing device with sealing parts replaceable on site |
| CN103759011A (en) * | 2014-01-28 | 2014-04-30 | 中国船舶重工集团公司第七0四研究所 | Integral type displacement compensation elastic part for tail shaft sealing device and manufacturing method of integral type displacement compensation elastic part |
| CN103759011B (en) * | 2014-01-28 | 2016-02-03 | 中国船舶重工集团公司第七0四研究所 | Stern shaft seal gland integrated type type displacement compensation elastic part and preparation method thereof |
| CN106321855A (en) * | 2016-10-19 | 2017-01-11 | 无锡市宏源弹性器材有限公司 | Stern shaft sealing device |
| CN106321855B (en) * | 2016-10-19 | 2018-06-01 | 无锡市宏源弹性器材有限公司 | Stern shaft seal gland |
| CN106704597A (en) * | 2017-03-25 | 2017-05-24 | 无锡市翱宇特新科技发展有限公司 | Stern shaft lubricating and sealing device |
| CN106704597B (en) * | 2017-03-25 | 2018-03-23 | 无锡市翱宇特新科技发展有限公司 | A kind of stern tube shaft lubricating and sealing device |
| CN109973656A (en) * | 2019-04-24 | 2019-07-05 | 东台船用配件有限公司 | From centering stern shaft seal gland |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090128 |