CN2881232Y - Rubber-ring type water lubricating stern shaft sealing device - Google Patents
Rubber-ring type water lubricating stern shaft sealing device Download PDFInfo
- Publication number
- CN2881232Y CN2881232Y CN 200620068327 CN200620068327U CN2881232Y CN 2881232 Y CN2881232 Y CN 2881232Y CN 200620068327 CN200620068327 CN 200620068327 CN 200620068327 U CN200620068327 U CN 200620068327U CN 2881232 Y CN2881232 Y CN 2881232Y
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- ring
- rubber ring
- type water
- rubber
- stern shaft
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- Expired - Lifetime
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Abstract
The utility model relates to a rubber-ring type water lubricating stern shaft sealing device, which, on the basis of another Chinese patent ''water lubricating stern shaft sealing device'' and aiming at the disadvantage of the original device that the space between and the joint of the active ring base of an active ring part and the pushing-sleeve active sealing point of an elastic traction compensation part are easy to be entered by fine sands and form sediment in waters with high sediment proportion and much impurities, solves the using disadvantage of the original device in waters with high sediment proportion and much impurities through the arrangement of a rubber ring combining the active ring part and the elastic traction compensation part.
Description
Affiliated technical field
The utility model relates to marine shafting stern pipe bow seal equipment, belongs to the technical field of marine shafting corollary equipment.
Background technique
At present, used mechanical end-surface type water lubrication stern shaft seal gland on marine shafting, normally by two groups of sealed members, stationary ring part, rotating ring part and elastic thrust compensated part are formed, carry out screw shaft of ship pass the hull part static, when rotating to the sealing of water.(patent No. is Chinese patent: the mechanical end-surface type water lubrication stern shaft seal gland of a kind of structural type that ZL00221486.5) comes to this.Contain the big and impure many waters of silt ratio at some, the problem that the water lubrication stern shaft seal gland runs into is to have gap and junction between rotating seat in the rotating ring part and the pushing sleeve in the elastic thrust compensated part (being also referred to as lining in the industry) dynamic sealing point, use some months or after the longer time, 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 rotating ring and partly remove incrustation scale, sand grains; change the O type circle in the dynamic sealing point between rotating seat and the pushing sleeve in case of necessity again; tend to influence boats and ships like this and normally navigate by water, bring the certain economic loss.
Summary of the invention
The purpose of this utility model provides a kind of rotating ring part and the elastic thrust compensated part rubber ring type water lubrication stern shaft seal gland (hereinafter to be referred as water sealing device) that two combine into one, its rotating seat and thrust-compensating place stationary seal point can prevent effectively that silt from invading and the influence of water impurity fouling.
The technological scheme that its technical problem that solves the utility model adopts is: an arciform rubber ring is set in the water lubrication seal arrangement, and an end of rubber ring is designed to rotating seat, is used to install rotating ring, and the rubber ring the other end and metal grommet and metal clamp ring link.The rubber ring elastic force that the arc rubber ring that the thrust-compensating of rotating ring body is pressured after contracting forms carries out the tracking and compensating of rotating ring sealing pair face, because rubber is an integral body, has so just realized that there is not dynamic sealing point in rotating ring with compensating between the thrust.
The beneficial effects of the utility model are: replaced the pushing sleeve and the spring of rotating seat and elastic thrust compensated part with whole rubber ring, made it stationary seal point between the thrust-compensating, effectively prevented the fouling in the seal point junction of silt invasion and impurity.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples
Accompanying drawing is rubber ring type water lubrication stern shaft seal gland embodiment's a vertical semi-section tectonic maps.
Among the figure 1, gland, 2, screw, 3, elastic washer, 4, sealing seat, 5, ring in the pneumatic tyre, 6, the sealing pneumatic tyre, 7, pipe joint, 8, pipe joint, 9, O type circle, 10 stationary rings, 11, screw, 12, elastic washer, 13, rotating ring, 14, driving pin, 15, rubber ring, 16, grommet, 17, clamp ring, 18, screw, 19, elastic washer, 20, screw, 21, elastic washer, 22, O type circle.
Embodiment
In the drawings, ring (5), pneumatic tyre (6), pipe joint (7) have been formed the pneumatic tyre hermetic unit with the mode of mechanical coupling in gland (1), screw (2), elastic washer (3), sealing seat (4), the pneumatic tyre.Wherein sealing seat is by being bolted on the hull.The effect of pneumatic tyre hermetic unit is to utilize pipe joint (7) to charge into 0.4～0.5Mpa pressurized air in pneumatic tyre (6), the hermetic seal tire is expanded hold tightly to stop outboard water to enter in the hull on screw shaft of ship, after the venting, can restore to the original state.Pipe joint (8), O type circle (9), stationary ring (10), screw (11), elastic washer (12) are formed the stationary ring part with the mechanical coupling mode, and partly are linked together by screw (11) and pneumatic tyre.The main effect of stationary ring part is to form complete mechanical sealing with the rotating ring body.
Rotating ring (13), driving pin (14), rubber ring (15), grommet (16), clamp ring (17), screw (18), elastic washer (19), screw (20), elastic washer (21), O type circle (22) are formed a rotating ring body portion with the mechanical coupling mode.In use, rotating ring rubbing surface and stationary ring face are fitted, use the arc rubber ring (decrement is determined by designing and calculating and test) in the special tool compression rotating ring body then, make and form a certain amount of elastic compensating thrust between the rubber ring, use grommet (20) and clamp ring (21) to be fixed on rubber ring on the stern tube shaft together again, the rotating ring body just forms an integral part like this, and middle stationary seal point effectively prevents silt invasion and impurity fouling.
According to the Figure of description structural representation, when real ship is used, with pneumatic tyre, stationary ring partly overlap put into stern tube shaft after, be fixed by bolts on the ship stern tube wall, again rotating ring body portion cover put into stern tube shaft, make the applying of rotating ring face and stationary ring face after, then along the direction compressing rubber ring left of axle, fix grommet, clamp ring at last, and connect the external part of each pipe joint, just can implement the utility model.
Claims (4)
1, a kind of rubber ring type water lubrication stern shaft seal gland is characterized by by inflatable pneumatic tyre sealing and mechanical seal and forms, and faces that propeller direction pneumatic tyre seals and mechanical sealing is sleeved on the screw shaft of ship side by side.
2, rubber ring type water lubrication stern shaft seal gland according to claim 1 is characterized in that the rotating ring body portion mainly is made up of rotating ring, rubber ring and clamp ring in the mechanical seal.
3, rubber ring type water lubrication stern shaft seal gland according to claim 1 is characterized in that elastic compensating thrust forms after being compressed by rubber ring in its mechanical seal.
4, rubber ring type water lubrication stern shaft seal gland according to claim 1 is characterized in that rubber ring one end is a rotating seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620068327 CN2881232Y (en) | 2006-01-09 | 2006-01-09 | Rubber-ring type water lubricating stern shaft sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620068327 CN2881232Y (en) | 2006-01-09 | 2006-01-09 | Rubber-ring type water lubricating stern shaft sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2881232Y true CN2881232Y (en) | 2007-03-21 |
Family
ID=37881071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620068327 Expired - Lifetime CN2881232Y (en) | 2006-01-09 | 2006-01-09 | Rubber-ring type water lubricating stern shaft sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2881232Y (en) |
Cited By (2)
| 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 |
-
2006
- 2006-01-09 CN CN 200620068327 patent/CN2881232Y/en not_active Expired - Lifetime
Cited By (3)
| 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 |
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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 |
Granted publication date: 20070321 |
|
| EXPY | Termination of patent right or utility model |