CN204459166U - Naval vessel stern tube shaft water lubrication face seals - Google Patents
Naval vessel stern tube shaft water lubrication face seals Download PDFInfo
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- CN204459166U CN204459166U CN201520068006.2U CN201520068006U CN204459166U CN 204459166 U CN204459166 U CN 204459166U CN 201520068006 U CN201520068006 U CN 201520068006U CN 204459166 U CN204459166 U CN 204459166U
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- stern tube
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Abstract
The utility model discloses a kind of naval vessel stern tube shaft water lubrication face seals, comprise fixed base and rotating seat, fixed base is equipped with pneumatic tyre sealing and compressed air joint, described rotating seat is embedded with moving sealing ring, fixed base is also fixedly connected with stationary seat, and this stationary seat fits with ladder surface and fixed base; Stationary seat is embedded with stationary seal ring, and stationary seal ring and moving sealing ring can be fitted mutually slidably; Described stationary seal ring and moving sealing ring are the rectangular annulus of cross section.Described stationary seat is installed with splashproof circle.It is reliable and stable that seal arrangement of the present utility model has sealability, long service life, and structure is simple, convenient for installation and maintenance, is widely used in the sealing configuration of naval vessel stern tube shaft.
Description
Technical field
The utility model relates to a kind of naval vessel stern shaft seal gland, particularly relates to the improvement of naval vessel stern tube shaft water lubrication mechanical seal structure.
Background technique
Stern tube shaft is the vitals on boats and ships, and its one end connects propeller, and the other end connects gear-box or coupling is connected with motor again.For preventing seawater from penetrating in cabin, tight sealing must be carried out, to guarantee warship safety, Effec-tive Function to through body place, cabin and stern tube shaft.
Naval vessel stern tube shaft water lubrication sealing system is using seawater as oiling agent, has simple structure advantage easily.With regard to its sealing configuration, conventional naval vessel stern tube shaft water lubrication structure mainly contains the several types such as rubber sealing structure, packing seal structure and end surface mechanical sealing structure, wherein the sealability of end face seal structure is stable, sealing is reliable, wear and tear little (do not wear and tear stern tube shaft), leakage rate are minimum, and frictional behaviour is good, long service life, obtains applying more widely in naval vessel stern sealing system.
Existing stern shaft end surface sealing device mainly comprises the fixed base be fixedly installed on hull, fixed base is provided with stationary seal ring, the moving sealing ring be close to stationary seal ring is installed on rotating seat, and stationary seat is provided with water-cooling tube joint and the cooling water passage leading to sealing surface.Due to the restriction by structure, existing this structure is often only applicable to the diameter of axle and is less than diameter 150mm, sealing surface linear velocity is lower than in the stern shaft seal of 7m/S, and along with the development of shipping industry, the tonnage of ship constantly increases, stern tube shaft diameter and sealing surface linear velocity also have obvious increase, thus existing structure in use shows many deficiencies: first, again owing to directly installing stationary seal ring on fixed base, and water-cooling tube joint and cooling water passage is also provided with on this stationary ring, stationary seal ring spatial structure is large, complex structure is stressed unreasonable, during as adopted hard material, not only easily there is cracked phenomenon, sealability is lost, and cost increase, the high value of quality material is not fully utilized.Its two, stationary seal ring is to fit Plane Installation on fixed base, and this structure had both been unfavorable for that stationary ring when assembling accurately was located, and in use easily produced stationary ring play again, thus affected the sealing effect of sealing surface.Therefore, there is sealability instability in existing above-mentioned sealing configuration, the deficiency that working life is short.
Model utility content
For the above-mentioned not enough problem existing for prior art, technical problem to be solved of the present utility model is to provide and a kind ofly seals naval vessel stern tube shaft water lubrication face seals that is reliable, long service life.
In order to solve above-mentioned technical deficiency, naval vessel of the present utility model stern tube shaft water lubrication face seals, comprise fixed base and rotating seat, fixed base is equipped with pneumatic tyre sealing and compressed air joint, described rotating seat is embedded with moving sealing ring, fixed base is also fixedly connected with stationary seat, and this stationary seat fits with ladder surface and fixed base; Stationary seat is embedded with stationary seal ring, and stationary seal ring and moving sealing ring can (by spring force) be fitted mutually slidably; Described stationary seal ring and moving sealing ring are the rectangular annulus of cross section.
After adopting said structure, because stationary seal ring is fixedly connected on fixed base by stationary seat, this structure substantially reduces the volume of stationary seal ring, thus make that stationary seal ring can adopt the high hardness such as cemented carbide, high price material is made, can not only fabricating cost be reduced, and the premium properties such as material high strength, high abrasion and selflubricating can be given full play to; This structure also facilitates maintenance and the replacing of stationary seal ring simultaneously, makes the sealability that this face seals remains reliable, stable.Again because stationary seat is connected so that ladder surface and fixed base are bonded to each other, so not only there is positioning performance of better feeling relieved, be convenient to assembling and install, and be conducive to keeping the structure stability between fixed base and stationary seat, more be adapted to the requirement of large-diameter, high sealing linear velocity, make its sealability more reliable, long service life.Also due to stationary seal ring and moving sealing ring, adopt the circle structure that cross section is rectangular, have sealing contact surface large, sealability is reliable and stable, the advantage that frictional power loss is minimum.
Further mode of execution of the present utility model, described stationary seat is installed with splashproof circle.This structure can effectively prevent the outer of sealing face leakage water from spattering.
Preferred implementation of the present utility model, described pneumatic tyre sealing is fixed on fixed base by pneumatic tyre gland, and the tire chamber that described compressed air joint and pneumatic tyre seal is connected.This structure has easy for installation, feature rational in infrastructure.
Further mode of execution of the present utility model, described stationary seat is connected with water-cooling tube joint.Described rotating seat is set on lining hermetically, between rotating seat and lining, be provided with spring.Introduce seawater by water-cooling tube, can lubricate sealing surface, can cool sealing surface again.Spring between rotating seat and lining can provide stable seal contact pressure to sealing surface.
Preferred implementation of the present utility model, described stationary seal ring is the circular ring that cemented carbide is made, and described moving sealing ring is the circular ring that Cuprum alloy is made.This structure not only has enough intensity and excellent wear-resisting, decay resistance, and has good self lubricity and enough working life.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model ship stern tube shaft water lubrication face seals is described further.
Fig. 1 is the structural representation of a kind of embodiment of the utility model naval vessel stern tube shaft water lubrication face seals.
In figure, the sealing of 1-pneumatic tyre, 2-pneumatic tyre gland, 3-fixed base, 4-compressed air joint, 5-water-cooling tube joint, 6-stationary seat, 7-splashproof circle fitting seat, 8-splashproof circle, 9-stationary seal ring, 10-moving sealing ring, 11-gasket seal, 12-rotating seat, 13-fixing pin, 14-lining, 15-clamping ring, 16-spring.
Embodiment
In the naval vessel stern tube shaft water lubrication face seals shown in Fig. 1, fixed base 3 is installed on the hull on naval vessel, and be fixedly pressed with pneumatic tyre sealing 1 at the pneumatic tyre gland 2 that passes on left of fixed base 3, pneumatic tyre sealing 1 is made up of rubber type of material.Fixed base 3 is also equipped with compressed air joint 4, this compressed air joint 4 leads in the tire chamber of pneumatic tyre sealing 1 by the air passageways on fixed base, when seal rotary parts or sealing static element are safeguarded or changed to needs, by being filled with certain air pressure in pneumatic tyre sealing, pneumatic tyre being sealed and bulges and stop the seawater outside ship wall to immerse; Pneumatic tyre sealing can also serve as the emergent sealing use to seawater.
The right flank of fixed base 3 is ladder surface, stationary seat 6 left surface corresponding with it is also a ladder surface, the ladder projection section of stationary seat 6 snaps in the ladder concave surface of fixed base 3 just at the right time, make fixed base 3 and stationary seat 6 bonded to each other and be fixedly connected to form seam linkage structure with bolt with ladder surface, so not only facilitate installation and maintenance, and both relative position in effectively ensureing to run.Stationary seat 6 is provided with water-cooling tube joint 5, stationary seat 6 is also provided with cooling water passage, the cooling water injected from water-cooling tube joint 5 through cooling water passage and stationary seat 6 and stern tube shaft clearance gap and enter into dynamic and static ring sealed friction surface between.Stationary seal ring 9 is embedded with at the right flank of stationary seat 6, sealing stationary ring 9 is that material is made with cemented carbide, corresponding with the position of stationary seal ring 9, stationary seal ring 9 can also be fitted with moving sealing ring 10 relative sliding, moving sealing ring 10 is flush-mounted in the left-hand end position of rotating seat 12, and moving sealing ring 10 is made with Cuprum alloy, and stationary seal ring 9 and moving sealing ring 10 define with mutually friction sealed to Cuprum alloy of cemented carbide, there is good sealability, and long service life.Stationary seal ring 9 for cross section be the ring ring structure of rectangle, the long edge annulus radial arrangement of its cross section rectangle, cross section rectangle minor face is then arranged vertically.The cross section of moving sealing ring 10 is also the ring ring structure that cross section is rectangle, and the long limit of its cross section rectangle is then axial arranged along annulus, and cross section rectangle minor face is radially arranged.
Be embedded with the rotating seat 12 cylindrically structure of moving sealing ring 10, it is set on lining 14 by two gasket seal 11, and gasket seal 11 is O RunddichtringO.Stern tube shaft is gone back clip and is fixed with clamping ring 15, lining 14 is fixedly loaded on clamping ring 15, is connected with fixing pin 13 between rotating seat 12 and lining 14, thus makes rotating seat 12 by lining 14 and clamping ring 15 with stern tube shaft synchronous axial system.During assembling, lining 14 is set on stern tube shaft hermetically by O RunddichtringO.Between rotating seat 12 and lining 14, be provided with spring 16, spring 16 is Compress Spring, and moving sealing ring 10 can be pressed on stationary seal ring 9 all the time.
Stationary seat 6 is provided with splashproof circle 8 by splashproof circle fitting seat 7, and splashproof circle 8 is made up of rubber, is positioned at the outside of stationary seal ring 9 and moving sealing ring 10, spatters outward to prevent throwing away of sealing face leakage water.
Claims (6)
1. a naval vessel stern tube shaft water lubrication face seals, comprise fixed base (3) and rotating seat (12), fixed base (3) is equipped with pneumatic tyre sealing (1) and compressed air joint (4), it is characterized in that: on described rotating seat (12), be embedded with moving sealing ring (10), fixed base (3) is also fixedly connected with stationary seat (6), and this stationary seat (6) fits with ladder surface and fixed base (3); Stationary seat (6) is embedded with stationary seal ring (9), and stationary seal ring (9) and moving sealing ring (10) can be fitted mutually slidably; Described stationary seal ring (9) and moving sealing ring (10) are the rectangular annulus of cross section.
2. naval vessel according to claim 1 stern tube shaft water lubrication face seals, is characterized in that: on described stationary seat (6), be installed with splashproof circle (8).
3. naval vessel according to claim 1 stern tube shaft water lubrication face seals, it is characterized in that: described pneumatic tyre sealing (1) is fixed on fixed base (3) by pneumatic tyre gland (2), and described compressed air joint (4) seals (1) tire chamber with pneumatic tyre is connected.
4. naval vessel according to claim 1 stern tube shaft water lubrication face seals, is characterized in that: on described stationary seat (6), be connected with water-cooling tube joint (5).
5. naval vessel according to claim 1 stern tube shaft water lubrication face seals, is characterized in that: described rotating seat (12) is set on lining (14) hermetically, is provided with spring (16) between rotating seat (12) and lining (14).
6. the naval vessel stern tube shaft water lubrication face seals according to any one of claim 1-5, is characterized in that: the circular ring that described stationary seal ring (9) is made for cemented carbide, the circular ring that described moving sealing ring (10) is made for Cuprum alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520068006.2U CN204459166U (en) | 2015-02-01 | 2015-02-01 | Naval vessel stern tube shaft water lubrication face seals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520068006.2U CN204459166U (en) | 2015-02-01 | 2015-02-01 | Naval vessel stern tube shaft water lubrication face seals |
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| CN204459166U true CN204459166U (en) | 2015-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520068006.2U Active CN204459166U (en) | 2015-02-01 | 2015-02-01 | Naval vessel stern tube shaft water lubrication face seals |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105150508A (en) * | 2015-08-13 | 2015-12-16 | 中国科学院长春应用化学研究所 | Process method for preparing static ring used for ship tail shaft sealing and lubricating |
| CN109018214A (en) * | 2018-08-17 | 2018-12-18 | 广新海事重工股份有限公司 | A kind of installation method of the stationary ring end drag ring of the water lubrication head-tail sealing device of refrigerated carrier |
-
2015
- 2015-02-01 CN CN201520068006.2U patent/CN204459166U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105150508A (en) * | 2015-08-13 | 2015-12-16 | 中国科学院长春应用化学研究所 | Process method for preparing static ring used for ship tail shaft sealing and lubricating |
| CN105150508B (en) * | 2015-08-13 | 2017-04-26 | 中国科学院长春应用化学研究所 | Process method for preparing static ring used for ship tail shaft sealing and lubricating |
| CN109018214A (en) * | 2018-08-17 | 2018-12-18 | 广新海事重工股份有限公司 | A kind of installation method of the stationary ring end drag ring of the water lubrication head-tail sealing device of refrigerated carrier |
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