CN201330847Y - Marine vehicle deep sea seal device - Google Patents
Marine vehicle deep sea seal device Download PDFInfo
- Publication number
- CN201330847Y CN201330847Y CNU2009200386463U CN200920038646U CN201330847Y CN 201330847 Y CN201330847 Y CN 201330847Y CN U2009200386463 U CNU2009200386463 U CN U2009200386463U CN 200920038646 U CN200920038646 U CN 200920038646U CN 201330847 Y CN201330847 Y CN 201330847Y
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- Prior art keywords
- seal
- ring
- sphere
- rotating ring
- seal device
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- 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
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Abstract
The utility model relates to a marine vehicle seal device, especially the improvement of marine vehicle deep water seal device. The marine vehicle deep sea seal device of the utility model comprises a pressure seal apparatus, an oil lubrication seal device and an end face seal pair mainly composed of a dynamic ring and a static ring, a mechanical seal device composed of an elastic element and auxiliary seal parts, the dynamic ring and the static ring are in the sphere face slide contact. The utility model can eliminate the leakage caused by the axial cord eccentric center, and the manufacturing process is not complicated, the deep water seal performance is good.
Description
Technical field
The utility model relates to ship sealing device, relates in particular to the improvement of ship deep-sea sealing device.
Background technique
Deep-sea sealing device is large ocean boats and ships seal arrangements commonly used, be used to prevent that seawater from entering hull or device interior from the boats and ships running shaft, the quality of its sealability directly has influence on the safe operation of boats and ships, it is the important component part of boats and ships, particularly the ocean engineering operation ship needs deep-sea, 60 meters left and right sides enforcement operation under water sometimes, and is high especially to the requirement of deep-sea sealing device sealability.
When boats and ships especially ocean engineering boats and ships deep ocean work, static pressure is very big under water for it, only depend on the lubricated sealing device of oil sealing, its lip-type packing is easy to distortion, cause seal failure, so deep-sea sealing device for ship is generally by mechanical seal device, pressurized seal device, lubricated sealing device of oil constitutes, wherein mechanical seal is that a kind of usefulness solves the device that seals between running shaft and the body, it relies on elastic element to moving, the pretension of stationary ring end face seal pair and reach the axial end seal arrangement of sealing, the primary element that constitutes mechanical seal has: the end face seal pair of being made up of rotating ring and stationary ring that is the plane, elastic element, secondary seal, driving component, rotation preventing device and fastening piece.
Mechanical seal device is the sealing of first road, stop seawater to be invaded, lubricated sealing device of oil is the sealing of second road, stops the seawater that is leaked by mechanical seal device to enter in the ship, and the sealability of boats and ships is born jointly by mechanical seal device and lubricated sealing device of oil and guaranteed.Pressurized seal device is not worked at ordinary times, has only when seal failure, just starts pressurized seal device, and the opening air bag is tightly encircled running shaft (or axle sleeve), stops seawater to enter in the ship.Because mechanical vibration, axle body be the existence of factor such as length and running shaft gold machining, on-stream normal generation axial float of running shaft and axis angle displacement (being eccentric axis) phenomenon, this makes that the mechanical seal sealability partly in the above-mentioned deep-sea sealing device is not fine, for axial float, because the speed of running shaft axial displacement is little, the compensating action of elastic element can make the good driving fit of dynamic and static ring sealing end face, generally can eliminate the leakage that axial float produces.Under the long situation of axle body, on the ship stern tube shaft, the phenomenon of eccentric axis happens occasionally, and the frequency that occurs generally increases along with the increase of rotating speed, because it is moving on the existing machinery seal arrangement, the seal face of stationary ring mostly is the plane perpendicular to running shaft, thereby rotating shaft eccentric makes rotating ring axis and stationary ring axis not overlap, not parallel, thereby cause the end face of rotating ring and stationary ring no longer to overlap, but form a subtended angle, cause leaking, though this subtended angle can be recompensed by elastic element and since 1. the position of drift angle on the stationary ring end face of this subtended angle along with the rotation of rotating ring rotation change, and frequency is higher, elastic element has little time whole compensation, can only partly compensate; 2. the displacement in rotating seat has certain inhibition to secondary seal to rotating ring, and this makes that the servo-actuated of rotating ring is not fine, can not in time all eliminate the subtended angle between the dynamic and static ring.
Above-mentioned factor makes that the sealability of deep-sea sealing device for ship is not really desirable, does not find better solution at present as yet.
The model utility content
At the above-mentioned deficiency of existing in prior technology, technical problem to be solved in the utility model is to provide a kind of can the elimination by eccentric axis to cause the deep-sea sealing device for ship that leaks, and manufacturing process is uncomplicated, and the deep water sealability is better.
In order to solve the problems of the technologies described above, the utility model deep-sea sealing device for ship, comprise mechanical seal device, described rotating ring and the sliding contact of stationary ring sphere that pressurized seal device, lubricated sealing device of oil and end face seal pair, elastic element and the secondary seal etc. mainly be made up of rotating ring and stationary ring constitute.
After adopting said structure, because rotating ring and the sliding contact of stationary ring sphere, when the eccentric axis of running shaft, though rotating ring axis and stationary ring axis do not overlap, but rotating ring end face and stationary ring end face can slide and fit all the time by deflection, whole sealing device still can keep excellent sealing performance, thereby has improved the overall sealing performance of deep-sea sealing device for ship.
The seal face of stationary ring and rotating ring not only can be respectively the sphere of indent and the sphere of evagination; Can also be respectively the sphere of evagination and the sphere of indent; The seal face that can also be stationary ring is the sphere of indent, and the seal face of rotating ring is the plane.
Description of drawings:
Below in conjunction with the drawings and specific embodiments the utility model deep-sea sealing device for ship is described in further detail.
Fig. 1 is the structural principle schematic representation of a kind of embodiment of the utility model deep-sea sealing device for ship.
Embodiment
Among Fig. 1, the utility model deep-sea sealing device for ship is made of mechanical seal device, pressurized seal device 8 and lubricated sealing device of oil 9, and wherein mechanical seal device is installed near propeller cavitation one side, in the middle of pressurized seal device 8 is installed in.Mechanical seal device mainly is made of spring seat 2, elastic element 3, rotating seat 4, secondary seal 5, rotating ring 6, stationary ring 7 etc.
The seal face of stationary ring 7 is the sphere of indent, and be fixedly connected on the hermetic seal seat of pressurized seal device 8, this hermetic seal seat is fixedly attached on the hull, rotating seat 4 is fixedly sleeved in spring seat 2, spring seat 2 is fixedly attached on the rotary sleeve 1, be set with rotating ring 6 in the rotating seat 4, the periphery wall upper edge of rotating ring 6 circumferentially is evenly equipped with 6 axial locating slots, be evenly equipped with 6 positioning screw holes on the perisporium corresponding position of rotating seat 4, enter behind the positioning screwn screw-in positioning screw hole in the locating slot on rotating ring 6 periphery walls, positioning screwn does not contact (locating slot among the figure with the locating slot bottom, positioning screw hole, positioning screwn does not all draw), rotating ring 6 and rotating seat 4 are not relatively rotated, thereby rotating ring 6 is passed in the torque of running shaft.The seal face of rotating ring 6 is the sphere of evagination, and and stationary ring 7 be in the seal face of concave spherical surface fit, between two inner circle walls of rotating ring 6 and rotating seat 4 secondary seal 5 is installed respectively, this secondary seal 5 is rubber " O " type circle, because rubber " O " type circle has elasticity, the bottom of locating slot does not contact on positioning screwn on rotating seat 4 periphery walls and rotating ring 6 periphery walls, and rotating ring 6 and rotating seat 4 axial sphere sliding contacts, and the displacement of running shaft circular runout is generally less than 0.1mm, thereby rotating ring 6 can be done deflection among a small circle in rotating seat 4, rotating seat 4 and spring seat 2 also is equipped with the elastic element 3 of 12 performance unanimities between axially, this elastic element 3 is a spring, make the seal face of rotating ring 6 be close to vertically on the seal face of stationary ring 7, rotating ring 6 adopts macromolecular material to make.Because rotating ring 6 very light weight that macromolecular material is made, thereby the rotary inertia of rotating ring 6 is less, helps improving the servo-actuated of rotating ring 6.
When circular runout and eccentric axis phenomenon take place running shaft simultaneously, slide by the deflection between deflection slip and rotating ring 6 and the rotating seat 4 in the indent spherical end face of stationary ring 7 of the seal face of rotating ring 6 and to regulate compensation jointly.
The axial float of running shaft is recompensed by elastic element 3 because frequency is lower.
Above-mentioned mode of execution only is the utility model one of mode of execution preferably, and the seal face of its stationary ring and rotating ring not only can be respectively the sphere of indent and the sphere of evagination; Can also be respectively the sphere of evagination and the sphere of indent; The seal face that can also be stationary ring is the sphere of indent, and the seal face of rotating ring is the plane.These changes all fall among the protection of the utility model deep-sea sealing device for ship.
Claims (5)
1. deep-sea sealing device for ship, comprise the mechanical seal device that pressurized seal device (8), lubricated sealing device of oil (9) and the end face seal pair of mainly being made up of rotating ring (6) and stationary ring (7), elastic element (3) and secondary seal (5) etc. constitute, it is characterized in that: described rotating ring (6) and stationary ring (7) sphere sliding contact.
2. deep-sea sealing device for ship according to claim 1 is characterized in that: the seal face of described stationary ring (7) is the sphere of indent, and the seal face of described rotating ring (6) is the sphere of evagination;
3. deep-sea sealing device for ship according to claim 1 is characterized in that: the seal face of described stationary ring (7) is the sphere of evagination, and the seal face of described rotating ring (6) is the sphere of indent;
4. deep-sea sealing device for ship according to claim 1 is characterized in that: the seal face of described stationary ring (7) is the sphere of indent, and the seal face of described rotating ring (6) is the plane;
5. deep-sea sealing device for ship according to claim 1 is characterized in that: the axially sphere sliding contact of described rotating ring (6) and described rotating seat (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200386463U CN201330847Y (en) | 2009-01-04 | 2009-01-04 | Marine vehicle deep sea seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200386463U CN201330847Y (en) | 2009-01-04 | 2009-01-04 | Marine vehicle deep sea seal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201330847Y true CN201330847Y (en) | 2009-10-21 |
Family
ID=41224227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200386463U Expired - Fee Related CN201330847Y (en) | 2009-01-04 | 2009-01-04 | Marine vehicle deep sea seal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201330847Y (en) |
-
2009
- 2009-01-04 CN CNU2009200386463U patent/CN201330847Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 224200, Zhenxing Road, Dongtai Economic Development Zone, Jiangsu 16-1, China Patentee after: Jiangsu Huayang Heavy Industry Co.,Ltd. Address before: 224200, Zhenxing Road, Dongtai Economic Development Zone, Jiangsu 16-1, China Patentee before: Jiangsu Huayang Heavy Industries Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091021 Termination date: 20140104 |