CN1576167A - Apparatus for sealing stern axle tube with propeller shaft through therein - Google Patents
Apparatus for sealing stern axle tube with propeller shaft through therein Download PDFInfo
- Publication number
- CN1576167A CN1576167A CN 200410062073 CN200410062073A CN1576167A CN 1576167 A CN1576167 A CN 1576167A CN 200410062073 CN200410062073 CN 200410062073 CN 200410062073 A CN200410062073 A CN 200410062073A CN 1576167 A CN1576167 A CN 1576167A
- Authority
- CN
- China
- Prior art keywords
- seal ring
- stern tube
- space
- tube shaft
- shaft pipe
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H23/00—Transmitting power from propulsion power plant to propulsive elements
- B63H23/32—Other parts
- B63H23/321—Bearings or seals specially adapted for propeller shafts
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Sealing Devices (AREA)
- Sealing With Elastic Sealing Lips (AREA)
- Sealing Of Bearings (AREA)
Abstract
Disclosed is a sealing device (1) for sealing a stern shaft tube (2) which comprises a rotary airscrew shaft (5) arranged therein, wherein a plurality of sealing rings and a lubricant are used, for example, oil is conveyed to the stern shaft tube through the pipeline (9) connected to an oil tank (10) which is located at a place with a distance above the stern shaft tube (2). The first sealing ring (13) is mounted at one terminal adjacent to the stern shaft tube (2) and nearest the inside, the second sealing ring (14) is mounted at one terminal adjacent to where a windstick (7) is set. A room (16) is formed between the second sealing ring (14) and the third sealing ring and at the stern shaft tube' (2) one side where the windstick is mounted, a suction pump (20) and an outlet tube (17) connected with the atmospheric air are connected to the room (16). At least the fourth sealing ring (21) is assembled abutting on the third sealing ring (15) to form a cavity (22) between the third sealing ring (15) and the fourth sealing ring (21), wherein the cavity (22) is used for lubricating the cleaning water between the third sealing ring (15) and the fourth sealing ring (21) to ensure than the cleaning water can be conveyed to the cavity (22) under the pressure.
Description
Technical field
The present invention relates to a kind of sealing arrangement that is used to seal the stern tube shaft pipe that has prop shaft, prop shaft is arranged on and can rotates in this stern tube shaft pipe and supported by bearing, a plurality of seal rings have wherein been used, each seal ring has an antelabium around this prop shaft, and with this prop shaft Elastic Contact, lubricant wherein, the pipeline that for example oily utilization is connected to fuel tank is transported to the stern tube shaft pipe, this fuel tank is positioned at a distance of stern tube shaft pipe top, wherein first seal ring is installed in the end near the inner end of stern tube shaft pipe, second seal ring is installed near the end that screw propeller is set, and the antelabium of these seal rings toward each other.
Background technology
Such sealing arrangement is in the booklet " bearing of the SUPREME stern tube shaft seal of tube and prop shaft " (" SUPREME StemTube Seals and Propeller Shaft Bearings ") that for example is disclosed in the applicant and is shown.
In this known device, the oil pressure in the stern tube shaft pipe remains on a value place that is higher than the outer hydraulic pressure of ship side.For this reason, fuel tank is installed in the above a distance of floating line.Can realize the sufficient lubrication of the antelabium of seal ring in this way.To prevent that also sealing is penetrated into the stern tube shaft pipe from the outside, can destroy bearing like this.Yet, be applied to pressure on the seal ring antelabium by oil, can make the rate of wear of antelabium, lining or axle of bearing bigger than what wish.
In addition, the pressure that is imposed on the stern tube shaft pipe by oil makes in case the seal ring on the screw propeller side weares and teares, and just exists oil to be forced to the danger of outwards flowing and flowing to surface water.
Act on the oil because when axle rotates, have the antelabium of certain suction action by seal ring, also above-mentioned situation may take place.
Once attempt to utilize biodegradable oil or grease to overcome and used the existing above-mentioned defective of oil.Yet, use oil or grease comparatively expensive, and if grease enter surface water, can not make grease realize biodegradation veritably at once.This makes can meet difficulty when obtaining authorities' permission.
Summary of the invention
The objective of the invention is to eliminate above-mentioned defective.For reaching this purpose, the present invention provides a space in that side that the stern tube shaft pipe is provided with screw propeller, and aspirating pump and the outlet pipe that communicates with atmosphere are connected to this space.One side in this space is limited by described second seal ring, and opposite side is limited by the 3rd seal ring, and the antelabium of described the 3rd seal ring extends along the direction of screw propeller.
Aforesaid way makes, anyly passes the oil that second seal ring leaks out flow in the described space from the stern tube shaft pipe, and described space is under the bar pressure, and from wherein oil being reclaimed.Like this, oil just can outwards not leak in the surface water.
Preferably, same directional at least one the 4th seal ring is installed in next-door neighbour the 3rd seal ring place, and to form cavity between described seal ring, clean water can be transported to described cavity under pressure, described seal ring is lubricated.
Pass the outer water of ship side of the 3rd seal ring and the 4th seal ring, will enter in the space that is under the bar pressure, and from wherein reclaiming.Part is because the oil pressure in the stern tube shaft pipe is slightly higher than barometric pressure, thus water can not flow in the stern tube shaft pipe, thereby prevented destruction to bearing.
Because have the space that is under the barometric pressure between second seal ring and the 3rd seal ring, water under high pressure will can not arrive second seal ring.The result makes that the oil in the stern tube shaft pipe only needs the relatively little pressure that exceeds.
According to setting of the present invention, described fuel tank is positioned at the short distance in described stern tube shaft pipe top, and described distance is for for example between the 1-2 rice.The result makes to install significantly and simplifies.Certainly, need export pipeline, it preferably extends to more than the floating line.
Because the oil in the stern tube shaft pipe only needs the relatively little pressure that exceeds, antelabium wearing and tearing have been limited to first and second seal rings that center on the stern tube shaft pipe.
Export pipeline also is connected to the stern tube shaft pipe.Bearing make the stern tube shaft pipe oily fully abrim in this way, so that can not be damaged very little because of the oil in the stern tube shaft pipe.
By utilizing a pump that clean water is sent into cavity between the 3rd seal ring and the 4th seal ring from water tank, avoid addle to arrive in the described space that is in barometric pressure under, addle can make escape route and aspirating pump obstruction.Because foul also can make seal ring or prop shaft wear and tear in the water, perhaps make assembling, wear and tear thereon with the contacted lining of antelabium of seal ring.
In order to reclaim water in the described space and oil under the bar pressure better, preferably described aspiration is connected to the bottom in described space, and described export pipeline is connected to the top in described space.
If sealing arrangement is intended for use to have the boats and ships of big draft amount, according to another aspect of the invention, with described second seal ring towards the 5th opposite seal ring, be installed in the described space under the bar pressure, described the 5th seal ring seal and the relative space of described stern tube shaft pipe so that oil can from described stern tube shaft pipe dropwise be transported to described second and the antelabium of the 5th seal ring between the space.
In this way, realize that described space under the bar pressure is until the lubrication assistant of the seal ring of described stern tube shaft pipe and auxiliary sealing member (promptly emergent sealing member).
In addition, between described third and fourth seal ring, the 6th seal ring is set, described the 6th seal ring towards with the 3rd seal ring and the 4th seal ring towards identical, so that the space between described third and fourth seal ring is cut apart, be in water under the pressure and can be transported to described cavity between the 4th and the 6th seal ring, the space between the 3rd and the 6th seal ring is connected with the water tank that is positioned at a distance, described stern tube shaft pipe top.
Owing to there is the 6th seal ring, the pressure of the water that ship side is outer acts on the sealing ring, so that the 3rd seal ring in described space can not be exposed under the pressure of the outer water of ship side under the qualification barometric pressure.In addition, can also use auxiliary seal ring that pressure is further distributed.As situation, anti-dirt ring can be installed at the most close screw propeller place.
Description of drawings
Below will be concrete exemplary embodiment shown in reference to the accompanying drawings explain the present invention, wherein:
Fig. 1 has schematically shown first embodiment according to sealing arrangement of the present invention;
Fig. 2 has schematically shown a kind of sealing arrangement, and it is particularly suitable for having the boats and ships of big draft amount.
The specific embodiment
Fig. 1 schematically shows the sealing arrangement 1 that is installed in the stern tube shaft pipe 2, and stern tube shaft pipe 2 is connected on the hull of ship at 3 places, position, and utilizes bearing 4 supportings at stern tube shaft pipe 2 Center Screw Shafts 5.
Lining 6 is positioned on the prop shaft 5, and the hub sleeve of screw propeller can utilize and be bolted on the lining 6 of left side.Shown in the right side of figure was divided, lining 6 can be installed on the flange 8 that is connected on the prop shaft 5.
Oil from fuel tank 10 is full of stern tube shaft pipe 2 by pipeline 9; This fuel tank 10 is positioned at stern tube shaft pipe 2 tops, is H apart from stern tube shaft pipe 2, and H approximately is one to several meters, and fuel tank 10 is provided with outlet pipe 11.Stern tube shaft pipe 2 is provided with outlet pipe 12.
Utilize first seal ring 13 to prevent that oil from flowing out stern tube shaft pipe 2 and entering the inside of boats and ships.The other end of stern tube shaft pipe 2 seals by second seal ring 14.Be provided with three seal ring 15 relative, between second seal ring 14 and the 3rd seal ring 15, be formed with space 16 with second seal ring 14.This space 16 communicates with atmosphere by pipeline 17 on the one hand, communicates with container 19 by pipeline 18 on the other hand.Aspirating pump 20 is connected with container 19, and the fluid that sucks such as oil or water are transported in the storage bin (not shown).
Seal ring 13,14 and 15 and further specifically described other seal rings is not to be directly installed on the prop shaft 5, and is mounted on the lining 6 on the prop shaft 5.Like this, can prevent the wearing and tearing of prop shaft 5, and lining 6 when taking place, can be changed in wearing and tearing.
Be provided with the 4th seal ring 21 near the 3rd seal ring 15 places, thereby form cavity 22, utilize pipeline 23 and water pump 24, the clean water that is under the pressure can be transported to this cavity 22 from water tank 25.Outlet pipe 26 also is connected on the water tank 25.
Seal ring 15 and 21 water in this way lubricates and cools off, and prevents that contaminated surface water from contacting these seal rings.
Fig. 2 schematically shows the sealing arrangement that is particularly suitable for having big draft amount boats and ships.Corresponding components uses the same reference numerals among Fig. 1 to represent.
The 5th seal ring 30 is made to have formed space 31 between the antelabium of these two seal rings by 14 assemblings of second seal ring.By flow regulating valve, oil can dropwise flow to space 31 from stern tube shaft pipe 2 through pipeline 32.
The 6th seal ring 33 is assemblied between the 3rd seal ring 15 and the 4th seal ring 21, makes to form cavity 22.Utilize water pump 24, the water that is under the pressure can be transported to this cavity 22 from water tank 25.Be formed with space 34 between the 6th seal ring 33 and the 3rd seal ring 15, clean water can flow to this space 34 from water tank 25 by pipeline 35.This clean water is not subjected to high pressure, thereby the 3rd seal ring 15 bears less load.Space 34 communicates with outlet pipe 36 again.
The 4th seal ring 21 is designed to an anti-dirt ring alternatively, but independent anti-dirt ring also can be arranged.
Do not show valve and analogue particularly, they can be installed on each pipeline, so that can prevent medium back flow and other purposes.In addition, on each pipeline, can also be provided with embolism, be used for safeguarding and assembling or dismantle the usefulness of parts.
In each figure, use W to represent to be in the floating line in the boats and ships outside of stress state.In Fig. 2, by seal ring 13 auxiliary seal ring that does not specifically illustrate among the figure is installed, as the situation in traditional stern tube shaft pipe.
In addition, under the situation that does not depart from protection domain of the present invention, can also there be other seal ring to be installed on the either side of sealing arrangement, or carries out other modification.
Claims (6)
1. one kind is used for the sealing arrangement (1) that sealing has the stern tube shaft pipe (2) of prop shaft (5), described prop shaft (5) is arranged on and can rotates in the described stern tube shaft pipe (2) and supported by bearing (4), a plurality of seal rings have wherein been used, each seal ring has an antelabium around described prop shaft (5), and with described prop shaft (5) Elastic Contact, lubricant wherein, the pipeline (9) that for example oily utilization is connected to fuel tank (10) is transported to described stern tube shaft pipe (2), described fuel tank (10) is positioned at a distance of described stern tube shaft pipe (2) top, wherein first seal ring (13) is installed in the end near the inner end of described stern tube shaft pipe (2), second seal ring (14) is installed near the end that screw propeller (7) is set, the antelabium of these seal rings is characterized in that toward each other:
That side that described screw propeller (7) is set on described stern tube shaft pipe (2) is formed with a space (16), aspirating pump (20) and the outlet pipe (17) that communicates with atmosphere are connected on the described space (16), one side in described space (16) is limited by described second seal ring (14), opposite side is limited by the 3rd seal ring (15), and the antelabium of described the 3rd seal ring (15) extends along the direction of screw propeller (7).
2. sealing arrangement as claimed in claim 1, it is characterized in that: same directional at least one the 4th seal ring (21) is installed in next-door neighbour's the 3rd seal ring (15) and locates, between described seal ring, to form cavity (22), clean water can be transported to described cavity (22) under pressure, described seal ring (15,21) is lubricated.
3. sealing arrangement as claimed in claim 1 or 2 is characterized in that: described fuel tank (10) is positioned at the short distance in described stern tube shaft pipe (2) top, and described distance can be for example between the 1-2 rice.
4. as arbitrary described sealing arrangement in the claim of front, it is characterized in that: aspiration (18) is connected to the bottom in the described space (16) that is under the barometric pressure, and described outlet pipe (17) is connected to the top of described space (16).
5. as arbitrary described sealing arrangement in the claim of front, it is characterized in that: with described second seal ring (14) towards opposite the 5th seal ring (30), be installed in the described space (16) under the bar pressure, described the 5th seal ring (30) sealing and the relative space of described stern tube shaft pipe (2), so that oil can dropwise be transported to space (31) between the antelabium of the described second and the 5th seal ring (14,30) from described stern tube shaft pipe (2).
6. as arbitrary described sealing arrangement in the claim of front, it is characterized in that: at described third and fourth seal ring (15, the 6th seal ring is set 21), described the 6th seal ring (33) towards with described third and fourth seal ring towards identical, so that the space between described third and fourth seal ring is cut apart, the water that is under the pressure can be transported to the 4th and the 6th seal ring (21,33) in the described cavity (22) between, space (34) between the 3rd and the 6th seal ring (15,33) is connected with the water tank (25) that is positioned at a distance, described stern tube shaft pipe (2) top.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL1023796A NL1023796C2 (en) | 2003-07-02 | 2003-07-02 | Sealing system for sealing a propeller shaft case with a propeller shaft extending therethrough. |
| NL1023796 | 2003-07-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1576167A true CN1576167A (en) | 2005-02-09 |
Family
ID=33432534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410062073 Pending CN1576167A (en) | 2003-07-02 | 2004-07-02 | Apparatus for sealing stern axle tube with propeller shaft through therein |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1493659A1 (en) |
| CN (1) | CN1576167A (en) |
| NL (1) | NL1023796C2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103921916A (en) * | 2014-05-05 | 2014-07-16 | 李四维 | Mechanical shaft seal assembly for underwater propeller |
| CN104067037A (en) * | 2012-07-27 | 2014-09-24 | 伊格尔工业股份有限公司 | Stern tube sealing device |
| CN107504182A (en) * | 2017-09-27 | 2017-12-22 | 南京创力传动机械有限公司 | A kind of abrasion resistant type shaft sealer and high gear |
| CN109641644A (en) * | 2016-06-22 | 2019-04-16 | 瓦锡兰伊比利亚半岛公司 | It is used to support the device of the propeller shaft of marine ship and repairs the method for the device |
| CN111746769A (en) * | 2020-07-02 | 2020-10-09 | 阮华平 | Vertical pipe type ship waterproof transmission device |
| CN112339970A (en) * | 2020-09-29 | 2021-02-09 | 沪东中华造船(集团)有限公司 | High-precision mounting structure of ship tail pipe sealing device |
| CN114084330A (en) * | 2021-12-13 | 2022-02-25 | 中国船舶重工集团公司第七0四研究所 | Water-tight box of shaft type oil distributor |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI123875B (en) * | 2008-04-24 | 2013-11-29 | Abb Oy | Arrangement for sealing propeller shaft |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3122406A1 (en) * | 1981-06-05 | 1982-12-23 | Howaldtswerke-Deutsche Werft Ag Hamburg Und Kiel, 2300 Kiel | Sealing arrangement, in particular for rear stern tube seals |
| DE3510320A1 (en) * | 1985-03-22 | 1986-10-02 | Howaldtswerke - Deutsche Werft AG Hamburg und Kiel, 2300 Kiel | STEVE PIPE SEAL |
-
2003
- 2003-07-02 NL NL1023796A patent/NL1023796C2/en not_active IP Right Cessation
-
2004
- 2004-06-29 EP EP04076884A patent/EP1493659A1/en not_active Withdrawn
- 2004-07-02 CN CN 200410062073 patent/CN1576167A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104067037A (en) * | 2012-07-27 | 2014-09-24 | 伊格尔工业股份有限公司 | Stern tube sealing device |
| CN103921916A (en) * | 2014-05-05 | 2014-07-16 | 李四维 | Mechanical shaft seal assembly for underwater propeller |
| CN109641644A (en) * | 2016-06-22 | 2019-04-16 | 瓦锡兰伊比利亚半岛公司 | It is used to support the device of the propeller shaft of marine ship and repairs the method for the device |
| CN109641644B (en) * | 2016-06-22 | 2020-12-25 | 瓦锡兰伊比利亚半岛公司 | Device for supporting a propeller shaft of a marine vessel and method for repairing the device |
| CN107504182A (en) * | 2017-09-27 | 2017-12-22 | 南京创力传动机械有限公司 | A kind of abrasion resistant type shaft sealer and high gear |
| CN107504182B (en) * | 2017-09-27 | 2024-05-17 | 南京创力传动机械有限公司 | Wear-resistant shaft sealing device and high-speed gear |
| CN111746769A (en) * | 2020-07-02 | 2020-10-09 | 阮华平 | Vertical pipe type ship waterproof transmission device |
| CN112339970A (en) * | 2020-09-29 | 2021-02-09 | 沪东中华造船(集团)有限公司 | High-precision mounting structure of ship tail pipe sealing device |
| CN112339970B (en) * | 2020-09-29 | 2022-08-05 | 沪东中华造船(集团)有限公司 | High-precision mounting structure of ship tail pipe sealing device |
| CN114084330A (en) * | 2021-12-13 | 2022-02-25 | 中国船舶重工集团公司第七0四研究所 | Water-tight box of shaft type oil distributor |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1493659A1 (en) | 2005-01-05 |
| NL1023796C2 (en) | 2005-01-04 |
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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 | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |