CN203348555U - Stern shaft rotatable pressurized sealing device - Google Patents
Stern shaft rotatable pressurized sealing device Download PDFInfo
- Publication number
- CN203348555U CN203348555U CN 201320386209 CN201320386209U CN203348555U CN 203348555 U CN203348555 U CN 203348555U CN 201320386209 CN201320386209 CN 201320386209 CN 201320386209 U CN201320386209 U CN 201320386209U CN 203348555 U CN203348555 U CN 203348555U
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- CN
- China
- Prior art keywords
- utricule
- pressurized seal
- tube shaft
- stern tube
- sealing
- 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
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Abstract
The utility model relates to a ship stern shaft sealing device, in particular to improvement of a pressurized sealing device. A stern shaft rotatable pressurized sealing device comprises a pressurized sealing seat, a pressing cover and a sealing air bag, wherein the pressurized sealing seat is installed on a ship body, the pressing cover is fixedly installed on the pressurized sealing seat in a threaded connection mode, and the sealing air bag is installed between the pressurized sealing seat and the pressing cover. The sealing air bag is a circular-arc-shaped bag body made of rubber, the bag body is of a hollow sealing structure, an air nozzle is installed on the bag body and communicated with the inner cavity of the bag body, at least two sealing strips are distributed on the circumferential face in the bag body along the circumferential direction, a gap is reserved between the sealing strips, and the sealing strips and the inner circumferential face of the bag body form a whole during manufacture. A stern shaft rotates at low speed when pressurized sealing is performed, so that a ship is driven to be away from a dangerous environment with strong wind and big waves and then maintained, and the wind and wave withstanding capability of a ship is greatly improved.
Description
Technical field:
The utility model relates to the screw shaft of ship seal arrangement, relates in particular to the improvement of pressurized seal device.
Background technique:
The screw shaft of ship pressurized seal device is simple in structure with it, superior performance, easy to use and be widely used in screw shaft of ship sealing, pressurized seal device supports the use usually together with screw shaft of ship water lubrication seal arrangement or lubricated sealing device of oil, in ship's navigation, pressurized seal device is not worked, stern shaft seal is completed by lubricated sealing device of oil or face seals (comprising the water lubrication seal arrangement), in ship's navigation, stern shaft seal breaks down, while needing repairing, for not making the water inlet of ship storehouse, be convenient to maintenance, after generally first making stern tube shaft stop operating, again to the pressurized seal device injecting compressed air, pressure bladder is expanded, and be pressed on stern tube shaft, stop seawater to enter, thereby enforcement pressurized seal, the assurance maintenance work is normally carried out.Current pressurized seal device is by the pressurized seal seat, gland and open type pressure bladder form, gland adopts to be threaded and is fixedly mounted on the pressurized seal seat, the open type pressure bladder is arranged between pressurized seal seat and gland, need in the open type pressure bladder, inject a large amount of gas during sealing, the open type pressure bladder is expanded, and the inner peripheral surface that makes the open type pressure bladder is tightly encircled and is close to stern tube shaft, thereby play seal action, when the deficiency of this pressurized seal device is sealing, the area of contact of the inner peripheral surface of open type pressure bladder and stern tube shaft is larger, the open type pressure bladder encircle and while being close to stern tube shaft stern tube shaft can not rotate, otherwise the frictional force between stern tube shaft and open type pressure bladder will be damaged the open type pressure bladder, cause into the water major accident, and static boats and ships are easily out of control in boisterous environment.The pressurized seal device that can allow stern tube shaft to slowly run is at present not yet found, also in documents and materials and media report, does not find.
The model utility content:
For the existing above-mentioned deficiency of prior art, technical problem to be solved in the utility model is to provide a kind of ship stern tube shaft rotating pressurized seal device, it allows stern tube shaft to slowly run when implementing pressurized seal, implement maintenance after making boats and ships sail out of boisterous dangerous environment, improved greatly the ability of boats and ships storm resisting.
In order to solve the problems of the technologies described above, the scheme of the utility model technical solution problem is: the rotating pressurized seal device of ship stern tube shaft, comprise the pressurized seal seat, gland and pressure bladder, described pressurized seal seat is arranged on the boats and ships body, described gland adopts to be threaded and is fixedly mounted on described pressurized seal seat, described pressure bladder is arranged between described pressurized seal seat and described gland, the utricule that described pressure bladder is the ring made of rubber, the sealing configuration that this utricule is hollow, on this utricule, valve is installed, this valve is communicated with described utricule inner chamber, on the inner peripheral surface of this utricule, edge circumferentially at least is distributed with two Stamping Steel Ribbons, gapped between described Stamping Steel Ribbon, the inner peripheral surface of described Stamping Steel Ribbon and described utricule forms an integral body during fabrication.
After adopting such scheme, because adopting to be threaded, gland is fixedly mounted on described pressurized seal seat, described pressure bladder is arranged between described pressurized seal seat and described gland, the utricule that described pressure bladder is the ring made of rubber, the sealing configuration that this utricule is hollow, on this utricule, valve is installed, this valve is communicated with the inner chamber of described utricule, on the inner peripheral surface of this utricule, edge circumferentially at least is distributed with two Stamping Steel Ribbons, gapped between described Stamping Steel Ribbon, the inner peripheral surface of described Stamping Steel Ribbon and described utricule forms an integral body during fabrication.During real ship assembling, pressure bladder is installed between pressurized seal seat and described gland, the Stamping Steel Ribbon on the utricule inner peripheral surface is encircled but is not contacted stern tube shaft.While implementing pressurized seal, by source of the gas, by valve, to utricule, inflated, utricule is expanded and stable being fixed in the air sac sealing seat, Stamping Steel Ribbon on the utricule inner peripheral surface is encircled and is close to the stern tube shaft surface and implements sealing, because the axial width of single Stamping Steel Ribbon is less, little with the area of contact of stern tube shaft, when stern tube shaft slowly runs, the fricative heat of Stamping Steel Ribbon and stern tube shaft is not high; Due to gapped between Stamping Steel Ribbon, the seawater in gap has thermolysis preferably to Stamping Steel Ribbon again; On the other hand, the inner peripheral surface of Stamping Steel Ribbon and described utricule forms an integral body during fabrication, better improved the resistance to high temperature of Stamping Steel Ribbon, greatly extended the working life of pressure bladder and the working life of the rotating pressurized seal device of the utility model ship stern tube shaft, avoided with glue by Stamping Steel Ribbon bond to the glue-line that causes on the utricule inner peripheral surface easily aging, working life short deficiency.Thereby the rotating pressurized seal device of the utility model ship stern tube shaft allows stern tube shaft to slowly run while implementing pressurized seal, improved the ability of boats and ships storm resisting.
Described utricule is overall structure.
Described utricule is split type structure, is convenient to real ship and changes and install, and is separately installed with valve and Stamping Steel Ribbon on each utricule.
The axial width of the outer peripheral surface of described utricule is greater than the axial width of the inner peripheral surface of this utricule.When the utricule inner chamber is not inflated, can prevent that utricule from because of extraneous vibration, radial displacement occurring.
The side of described utricule presents rough shape.When the utricule inner chamber is not inflated, can prevent that utricule from because of extraneous vibration, the displacement with circumferential direction occurring radially.
On described utricule inner peripheral surface, edge circumferentially is distributed with two described Stamping Steel Ribbons.
On described utricule inner peripheral surface, edge circumferentially is distributed with three described Stamping Steel Ribbons.
On described utricule inner peripheral surface, edge circumferentially is distributed with many described Stamping Steel Ribbons.
Be processed with screw thread on described valve inwall, for connecting source of the gas.
Be connected with reinforcement plate on described valve, to improve anti-vibration resistance and the shock resistance of valve, reinforcement plate is embedded in the wall body of utricule during fabrication.
Described valve is arranged on the wall body be positioned on described utricule outer peripheral surface.
Described valve is arranged on the wall body be positioned on described utricule side, and side connects into an integral body by outer peripheral surface and inner peripheral surface.
The accompanying drawing explanation:
Below in conjunction with the drawings and specific embodiments, the rotating pressurized seal device of the utility model ship stern tube shaft is further described,
Fig. 1 is the structural principle schematic diagram of the rotating pressurized seal device mode of execution of the utility model ship stern tube shaft.
Fig. 2 is the structural principle schematic diagram of pressure bladder in the rotating pressurized seal device of the utility model ship stern tube shaft.
Embodiment:
In Fig. 1, Fig. 2, the rotating pressurized seal device of ship stern tube shaft consists of pressurized seal seat 2, gland 1 and pressure bladder, gland 1 adopts to be threaded and is fixedly mounted on pressurized seal seat 2, pressure bladder is arranged between pressurized seal seat 2 and gland 1, the utricule 3 that pressure bladder is the ring made of rubber, the sealing configuration that this utricule 3 is hollow, the axial width of the outer peripheral surface of utricule 3 is greater than the axial width of the inner peripheral surface of this utricule.Change and install for ease of real ship, utricule 3 adopts split type structure, and valve 4 is installed in the wall body on the outer peripheral surface of each utricule 3, and valve 4 is communicated with the inner chamber 5 of utricule 3, is processed with screw thread on valve 4 inwalls, for connecting source of the gas.Be connected with reinforcement plate 8 on valve 4, to improve anti-shake performance and the shock resistance of valve, reinforcement plate 8 is embedded in the wall body of utricule 3 during fabrication.On the inner peripheral surface of utricule 3, edge circumferentially is distributed with three Stamping Steel Ribbons 7, gapped between Stamping Steel Ribbon 7, Stamping Steel Ribbon 7 forms an integral body during fabrication with the inner peripheral surface of described utricule 3, thereby better improved the resistance to high temperature of Stamping Steel Ribbon 7, greatly extended the working life of pressure bladder and the working life of the rotating pressurized seal device of the utility model ship stern tube shaft, avoided with glue by Stamping Steel Ribbon 7 bond to the glue-line that causes on utricule 3 inner peripheral surfaces easily aging, working life short deficiency.Thereby the rotating pressurized seal device of the utility model ship stern tube shaft allows stern tube shaft to slowly run while implementing pressurized seal, improved the ability of boats and ships storm resisting.
Claims (10)
1. the rotating pressurized seal device of ship stern tube shaft, comprise pressurized seal seat (2), gland (1) and pressure bladder, described pressurized seal seat (2) is arranged on the boats and ships body, described gland (1) adopts to be threaded and is fixedly mounted on described pressurized seal seat (2), described pressure bladder is arranged between described pressurized seal seat (2) and described gland (1), the utricule (3) that described pressure bladder is the ring made of rubber, the sealing configuration that this utricule (3) is hollow, valve (4) is installed on this utricule (3), this valve (4) is communicated with the inner chamber (5) of described utricule (3), on the inner peripheral surface of this utricule (3), edge circumferentially at least is distributed with two Stamping Steel Ribbons (7), gapped between described Stamping Steel Ribbon (7), it is characterized in that: described Stamping Steel Ribbon (7) forms an integral body during fabrication with the inner peripheral surface of described utricule (3).
2. the rotating pressurized seal device of ship stern tube shaft according to claim 1 is characterized in that: described utricule (3) is overall structure.
3. the rotating pressurized seal device of ship stern tube shaft according to claim 1, it is characterized in that: described utricule (3) is split type structure.
4. the rotating pressurized seal device of ship stern tube shaft according to claim 1, it is characterized in that: the axial width of the outer peripheral surface of described utricule (3) is greater than the axial width of the inner peripheral surface of this utricule (3).
5. the rotating pressurized seal device of ship stern tube shaft according to claim 1, it is characterized in that: the side of described utricule (3) presents rough shape.
6. the rotating pressurized seal device of ship stern tube shaft according to claim 1 is characterized in that: on described utricule (3) inner peripheral surface along circumferentially being distributed with two described Stamping Steel Ribbons (7).
7. the rotating pressurized seal device of ship stern tube shaft according to claim 1 is characterized in that: on described utricule (3) inner peripheral surface along circumferentially being distributed with three described Stamping Steel Ribbons (7).
8. the rotating pressurized seal device of ship stern tube shaft according to claim 1 is characterized in that: on described utricule (3) inner peripheral surface along circumferentially being distributed with many described Stamping Steel Ribbons (7).
9. the rotating pressurized seal device of ship stern tube shaft according to claim 1, is characterized in that: on described valve (4) inwall, be processed with screw thread.
10. the rotating pressurized seal device of ship stern tube shaft according to claim 1, it is characterized in that: described valve is connected with reinforcement plate on (4), and this reinforcement plate is embedded in the wall body of utricule (3) during fabrication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320386209 CN203348555U (en) | 2013-06-26 | 2013-06-26 | Stern shaft rotatable pressurized sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320386209 CN203348555U (en) | 2013-06-26 | 2013-06-26 | Stern shaft rotatable pressurized sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203348555U true CN203348555U (en) | 2013-12-18 |
Family
ID=49748458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320386209 Expired - Fee Related CN203348555U (en) | 2013-06-26 | 2013-06-26 | Stern shaft rotatable pressurized sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203348555U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335109A (en) * | 2013-06-26 | 2013-10-02 | 东台友铭船舶配件有限公司 | Pneumatic sealing device capable of allowing stern shaft to rotate |
| CN104565385A (en) * | 2015-01-20 | 2015-04-29 | 马鞍山市荣亿密封材料有限责任公司 | Large-sized internal supercharging shaft sealing device |
| CN107606172A (en) * | 2017-09-15 | 2018-01-19 | 南通如港船舶配套机械有限公司 | Ship pressure sealing device |
-
2013
- 2013-06-26 CN CN 201320386209 patent/CN203348555U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335109A (en) * | 2013-06-26 | 2013-10-02 | 东台友铭船舶配件有限公司 | Pneumatic sealing device capable of allowing stern shaft to rotate |
| CN104565385A (en) * | 2015-01-20 | 2015-04-29 | 马鞍山市荣亿密封材料有限责任公司 | Large-sized internal supercharging shaft sealing device |
| CN107606172A (en) * | 2017-09-15 | 2018-01-19 | 南通如港船舶配套机械有限公司 | Ship pressure sealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131218 Termination date: 20180626 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |