CN100564959C - Adjustable self lubricating in-phase seal device for ship stern shaft - Google Patents
Adjustable self lubricating in-phase seal device for ship stern shaft Download PDFInfo
- Publication number
- CN100564959C CN100564959C CNB2007100510127A CN200710051012A CN100564959C CN 100564959 C CN100564959 C CN 100564959C CN B2007100510127 A CNB2007100510127 A CN B2007100510127A CN 200710051012 A CN200710051012 A CN 200710051012A CN 100564959 C CN100564959 C CN 100564959C
- Authority
- CN
- China
- Prior art keywords
- wear
- resistant sleeve
- ring
- shaft
- shape rubber
- 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.)
- Expired - Fee Related
Links
Images
Abstract
A kind of adjustable self lubricating in-phase seal device for ship stern shaft is characterized in that; Whole device is the hollow and annular body, and the center is the rotation stern tube shaft, contacts with stern tube shaft is friction sealed in the wear-resistant sleeve, outer with fill out the letter body device and contact; Fill out the letter body device and be connected with " U " shape rubber groove outward, be connected with sand control installation down; " U " shape rubber groove is enclosed among the ring-shaped cavity of formations such as wear-resistant sleeve, cylinder body, big minor flaps, ships steel plate.
Description
Technical field
The present invention relates to the angle of rake accessory of a kind of ocean goer stern portion ships or the improvement of parts, particularly a kind of adjustable self lubricating in-phase seal device for ship stern shaft.
Background technique
Chinese patent application number No. 200710048716.9 application documents have been announced a kind of " adjustable self-lubricating synchronous sealing device for ship stern shaft ", have further solved the technical barrier that stern tube shaft seals synchronously with adjustable self-lubricating.
Summary of the invention
But, through further deliberating repeatedly, find following deficiency again, and done systematic adjustment and improvement:
1, with the wear-resisting interplanting of running shaft contact following improvement:
A, wear-resistant sleeve and running shaft sliding fit, and by screw snap ring and wear-resistant sleeve are fixed; Advantage is that the snap ring dismounting is more convenient, and fixing more firm, in conjunction with tightr, radiating effect is better;
B, between wear-resistant sleeve and running shaft, increased " B " shape rubber seal; Advantage is the sealability that has improved between wear-resistant sleeve and the rotating shaft, and can prevent the collision between rotating shaft and the wear-resistant sleeve;
C, be coated with the coating of one deck anticorrosion antiwear on the wear-resistant sleeve surface; Advantage is both can improve wearability, can prevent the corrosion of seawater to wear-resistant sleeve again;
D, the wear-resistant sleeve corrosion-inhibiting coating is polished to minute surface; Help reducing wear-resistant sleeve and rotating shaft friction.
2, will fill out object staff cun and material and do following improvement:
A, fill out the minimum coefficient that the letter width adopts JB1712-75, reduce to 0.9 by original 1.2, width has reduced 1/4th, this is because the sealing material of the eighties of last century use seventies is an asbestos packing, the friction factor of asbestos is big, coefficient of restitution is little, the asbestos bisque is easily carcinogenic etc., so eliminate existing new teflon, Expanded graphite ring and the building rubber compound of adopting already, have good rebound elasticity, just can reduce and fill out the very little width of object staff; Advantage is to reduce the size of whole sealing device;
B, form by polytetrafluoroethylene ring and big rubber ring when filling out the sealing material of letter, with the sealing of the paired rotary shaft of Expanded graphite ring mutual group; This mixing sealing is not only reliable, and sealing load can reach more than the 20Mpa, and general ships can satisfy 0.5Mpa pressure to be enough to, and German Xin Polai company has only about 0.3Mpa.
Mix sealing and also have an advantage: be exactly good heat-transfer, though teflon, Expanded graphite all are the low coefficient of friction materials, has the low characteristic of the thermal efficiency of generation, long-time and its heat leakage that is produced must remove when running shaft is worked, the Expanded graphite that mixes in the sealing is good thermal conductor, is again to have the better selflubricating seal of sealability.
3, the improvement of sand control installation:
A, structure are more more terse, effective than originally, and method is: install and fixing with the shelves ring, with Spring Steel Wire with sand cap, shelves ring, shelves sand ring card jail, in case anti-avulsion falls;
B, wear-resistant sleeve can move down to fill up wearing and tearing, renewable working position.
4, the improvement of water cut-off device:
A, strengthened the diameter of large cover; directly large cover is connected with cylinder body and fixing with bolt; its advantage is not only to have strengthened the sand control function; also be " U " shape rubber groove is sealed in the firm cavity and protect, can guarantee effectively that " U " shape rubber groove do not pulled by seabed fishing net, benthophyte.
B, with original " O " shape rubber seal, change " B " shape rubber seal into, be for sealing effect better;
C, in " Y " shape rubber seal, be embedded with spring in advance, can make the rubber seal of " Y " shape increase spring-back force, thereby more increase and guaranteed sealing effect;
D, when ships navigates by water, " Y " shape rubber ring does not contact with running shaft, when ships is suspended when needing repairing, pressure is led to " Y " shape rubber seal, make " Y " shape rubber seal that seal ring is closely contacted with running shaft, thereby cut off the water supply interior leakage, can make ships not advance dock, can put up with the stop of casting anchor on tranquil and broad sea level, change the part maintenance operation, do not advance dock, can reduce the ships maintenance cost greatly;
E, changed part after, cut off the pressure source enter " Y " shape rubber ring again, " Y " shape rubber ring breaks away from the running shaft contact and recovers the normal value state, ships recovers normal navigation.
5, the improvement of " U " shape rubber groove and big or small slip ring:
A, on the basis of former patent, reduce the height dimension of " U " shape rubber groove, after having increased large and small U-shaped rubber groove and increasing the size of radius of curvature like this, can prolong the working life of " U " shape rubber groove warping resistance;
B, increased the area of big slip ring and little slip ring, to reduce the unit pressure of large and small slip ring, just can reach and prolong the big or small slip ring purpose in working life, the high pressure sealing slip ring can change the bigger load of loading ability of bearing into;
C, increased the size of pressing plate, avoided sealing synchronously to occur that axial clearance is excessive, the error of circling round increases, thereby produced looseningly, prevented the defective that reduces working life to reach;
In a word, for continuation of the journey and the operating capability that guarantees the ships excellence, this programme has carried out the improvement of above system to whole former scheme adjustable self-lubricating synchronous sealing device for ship stern shaft, become genuine adjustable self lubricating in-phase seal device for ship stern shaft, innovate forward again and the road that develops on advanced major step again.
Description of drawings
Fig. 1 is the fixedly figure of wear-resistant sleeve and running shaft;
Fig. 2 can debug synchronous oil sealing to fill out the letter structural drawing;
Fig. 3 is the sand control installation structural drawing;
Fig. 4 is the water cut-off device structural drawing;
Fig. 5 is " U " shape rubber groove and large and small slip ring structural drawing;
Fig. 6 is the general assembly structural drawing;
Among the figure: 1-" B " shape rubber seal, the rubber seal of 2-" Y " shape, 3-" B " shape rubber seal, the 4-bolt, the 5-minor flaps, the 6-bolt, the 7-large cover, the 8-sealing gasket, 9-" U " shape rubber groove, the 10-support ring, the 11-cylinder body, 12-ships steel plate, the little slip ring of 13-, the 14-screw, the 15-force bearing ring, the big slip ring of 16-, the 17-pressing plate, the 18-screw, the 19-snap ring, 20-" B " shape circle, the 21-polytetrafluoroethylene ring, the 22-wear-resistant sleeve, 23-binder lid, the 24-screw, 25-pressure transmission plate, 26-entrance pressure interface, the 27-ring that performs, 28-Expanded graphite ring, 29-internal fixation ring, 30-" B " shape circle, the big rubber ring of 31-, the 32-screw, 33-small rubber ring, 34-lower gear ring, the 35-sand cap, 36-fills out the letter body, the 37-Spring Steel Wire, 38-shelves ring, the 39-Spring Steel Wire, the 40-sand stop ring.
Embodiment
1, the wear-resistant sleeve 22 of running shaft contact has been done following improvement:
A, wear-resistant sleeve 22 and running shaft sliding fit, and by screw 18 that snap ring 19 is fixing with wear-resistant sleeve 22;
B, between wear-resistant sleeve 22 and running shaft, increased " B " shape rubber seal 1;
C, be coated with the coating of one deck anticorrosion antiwear on wear-resistant sleeve 22 surfaces;
D, wear-resistant sleeve 22 corrosion-inhibiting coatings are polished to minute surface.
2, will fill out object staff cun and material and do following improvement:
A, fill out the minimum coefficient that the letter width adopts JB1712-75, reduce to 0.9 by original 1.2, width has reduced 1/4th;
B, form by polytetrafluoroethylene ring 21 and big rubber ring 31 when filling out the sealing material of letter, with the sealing of the paired rotary shaft of Expanded graphite ring 28 mutual group.
3, the improvement of sand control installation:
A, install and fixing with shelves ring 38, with Spring Steel Wire 36 with sand cap 35, shelves ring 38, shelves sand ring 40 card jails;
B, wear-resistant sleeve 22 can move down promptly can fill up wearing and tearing, renewable working position.
4, the improvement of water cut-off device
A, strengthened the diameter of large cover 7, directly large cover 7 has been connected with cylinder body 11 and fixes with bolt 6;
B, with original " O " shape rubber seal, change " B " shape rubber seal 3 into;
C, in " Y " shape rubber seal 2, be embedded with spring 39 in advance;
" Y " shape rubber ring 2 when D, ships navigation, do not contact with running shaft, when ships is suspended when needing repairing, pressure is led to " Y " shape rubber seal, make the rubber seal displacement of " Y " shape and seal ring is closely contacted with running shaft, thereby cut off the water supply interior leakage, ships does not advance dock, can put up with the stop of casting anchor on tranquil and broad sea level, change the part maintenance operation;
E, changed part after, cut off the pressure source enter " Y " shape rubber ring 2 again, make rubber ring break away from the running shaft contact and recover the normal value state, ships recovers navigation.
5, the improvement of " U " shape rubber groove and big or small slip ring:
A, on the basis of former patent, reduce the height dimension of " U " shape rubber groove 9, increased large and small U-shaped rubber groove volume, increased working life;
B, increased the volume of big slip ring 16 and little slip ring 13,, prolonged the purpose of large and small slip ring operating life to reduce the unit pressure of large and small slip ring;
C, increased the size of pressing plate 17, avoided sealing synchronously to occur that axial clearance is excessive, the error of circling round increases, thereby produced looseningly, reduced working life to adjust and to reach.
Claims (4)
1, a kind of adjustable self lubricating in-phase seal device for ship stern shaft is characterized in that: whole device is the hollow and annular body, and the center is the rotation stern tube shaft, and stern tube shaft is friction sealed contacts with rotation in the wear-resistant sleeve (22), outer with fill out letter body (36) device and contact; Fill out letter body (36) device and be connected with " U " shape rubber groove (9) outward, be connected with sand control installation down; " U " shape rubber groove (9) is enclosed among the ring-shaped cavity of wear-resistant sleeve (22), cylinder body (11), large cover (7), minor flaps (5), ships steel plate (12) formation.
2, adjustable self lubricating in-phase seal device for ship stern shaft according to claim 1 is characterized in that: the wear-resistant sleeve (22) that will contact with the rotation stern tube shaft has been done following improvement:
A, wear-resistant sleeve (22) are slidingly matched with the rotation stern tube shaft, and it is fixing with snap ring (19) and wear-resistant sleeve (22) to have passed through screw (18);
B, increased " B " shape rubber seal (1) between the stern tube shaft at wear-resistant sleeve (22) and rotation;
C, be coated with the coating of one deck anticorrosion antiwear on wear-resistant sleeve (22) surface;
D, wear-resistant sleeve (22) corrosion-inhibiting coating is polished to minute surface.
3, adjustable self lubricating in-phase seal device for ship stern shaft according to claim 1 is characterized in that: will fill out letter body size and material and do following improvement:
A, fill out the minimum coefficient that letter body width adopts JB1712-75, reduce to 0.9 by original 1.2, width has reduced 1/4th;
B, the sealing material of filling out the letter body are made up of polytetrafluoroethylene ring (21) and big rubber ring (31), the sealing of rotating stern tube shaft in pairs with Expanded graphite ring (28) mutual group.
4, adjustable self lubricating in-phase seal device for ship stern shaft according to claim 1 is characterized in that the improvement of sand control installation:
A, install and fixing with shelves ring (38), with Spring Steel Wire (37) with sand cap (35), shelves rings (38), shelves sand rings (40) card jail;
B, wear-resistant sleeve (22) can move down to fill up wear-out defect, upgrade the working position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100510127A CN100564959C (en) | 2007-12-27 | 2007-12-27 | Adjustable self lubricating in-phase seal device for ship stern shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100510127A CN100564959C (en) | 2007-12-27 | 2007-12-27 | Adjustable self lubricating in-phase seal device for ship stern shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101216110A CN101216110A (en) | 2008-07-09 |
| CN100564959C true CN100564959C (en) | 2009-12-02 |
Family
ID=39622596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100510127A Expired - Fee Related CN100564959C (en) | 2007-12-27 | 2007-12-27 | Adjustable self lubricating in-phase seal device for ship stern shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100564959C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105465365B (en) * | 2015-12-31 | 2017-05-03 | 湖南大洋机械制造有限公司 | Adjustable tail shaft sealing device for ship |
| CN110748645B (en) * | 2019-10-28 | 2022-02-22 | 西安近代化学研究所 | Sealing device suitable for corrosive liquid |
| CN111425595B (en) * | 2020-04-17 | 2022-05-10 | 中船黄埔文冲船舶有限公司 | Semi-ship floating stern shaft sealing tool and sealing method |
-
2007
- 2007-12-27 CN CNB2007100510127A patent/CN100564959C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101216110A (en) | 2008-07-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1819956B1 (en) | Metal valve stem seal and sealing system | |
| CN105464882B (en) | Main shaft sealing device and the axial flow hydraulic turbine with the device | |
| CN201050598Y (en) | Mechanical seal | |
| CN100564959C (en) | Adjustable self lubricating in-phase seal device for ship stern shaft | |
| CN206958255U (en) | A kind of two-shot elastomer combination sealing | |
| CN204327768U (en) | Liquid slip ring rotating disk stuffing box bearing | |
| EP3460170A1 (en) | Axial face seal system | |
| CN201433871Y (en) | Dry gas seal for high-pressure compressor | |
| CN202249752U (en) | Seal transmission shaft | |
| CN202946020U (en) | Cone bit bearing assembly with monometallic sealing system and floating bearing system combined | |
| CN101021269A (en) | Adjustable self-lubricating synchronous sealing device for ship stern shaft | |
| KR20120001481A (en) | Multistage insert type sleeve configurations radial shaft seal unit | |
| CN112303275B (en) | Metal sealing ball valve | |
| CN201696605U (en) | Autocompensation piston ring | |
| CN109307120A (en) | A kind of binary channels fluid slip ring | |
| CN203656191U (en) | Spherical surface sealing and mechanical sealing combined rotating sealing device | |
| JP2006322342A (en) | Shaft seal device of hydraulic machinery | |
| CN209909162U (en) | Non-revolving body sealing lip rotary sealing structure | |
| CN207376687U (en) | Center-rotary joint and hydraulic crawler excavator | |
| KR100426112B1 (en) | A bearing structure for rotatably supporting a turret on a vessel hull and a method for the same | |
| CN205743811U (en) | Support, sealing and the lubrication system of a kind of trailing type wellhead sealing device | |
| CN205113677U (en) | It is sealed to change leaf formula steering wheel spherical structure | |
| CN102840330A (en) | Front shaft seal device with integral movable ring | |
| CN101737316A (en) | Piston with compound piston ring | |
| CN215566355U (en) | Main shaft sealing structure of water turbine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091202 Termination date: 20101227 |