CN204677766U - Naval vessel stern shaft mechanical sealing device - Google Patents
Naval vessel stern shaft mechanical sealing device Download PDFInfo
- Publication number
- CN204677766U CN204677766U CN201520297801.9U CN201520297801U CN204677766U CN 204677766 U CN204677766 U CN 204677766U CN 201520297801 U CN201520297801 U CN 201520297801U CN 204677766 U CN204677766 U CN 204677766U
- Authority
- CN
- China
- Prior art keywords
- rubber seal
- sealing
- cavity
- axle sleeve
- groups
- 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
Landscapes
- Sealing Devices (AREA)
Abstract
The utility model discloses a kind of naval vessel stern shaft mechanical sealing device, comprise the sealing seat be connected with hull, and for installing the sealing oil jacket of rubber seal; The back-up ring at described sealing seat, sealing oil jacket, axle sleeve and two ends surrounds cavity; Be full of in described cavity and have lubricant oil, and in cavity, be arranged in sequence with some rubber seal be placed on axle sleeve from front to back; The spring providing radial tightening power is installed in described rubber seal; Described some rubber seal are divided into two groups, front and back, and the cavity between two groups of rubber seal is warning grease chamber; Described sealing oil puts the hole having and be communicated with gravity oil tank warning grease chamber.There is the mechanical seal device of said structure, be applicable to the special operation condition of screw shaft of ship, its long service life, stable performance.
Description
Technical field
The utility model relates to a kind of all kinds of naval vessels stern tube shaft mechanical seal.
Background technique
Boats and ships development is now grown more, more and more higher for screw shaft of ship seal request.The situations such as river, river, seawater are complicated and changeable, and particulate matter is many, and foreign material are many, and corrosivity is strong, and temperature variation is large, and these situations cause for stern shaft seal and much run difficulty.
More and more emphasizing economic benefit and stable today, more and more higher to the requirement of stern shaft seal, extend and seal working life, reduce and keep in repair more ring number of times, run more reliable and more stable.
Model utility content
For the technical problem of above-mentioned existence, the utility model provides a kind of long lifetime, reliable naval vessel stern shaft mechanical sealing device.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of naval vessel stern shaft mechanical sealing device, comprises the sealing seat be connected with hull, and for installing the sealing oil jacket of rubber seal; It is characterized in that: the back-up ring at described sealing seat, sealing oil jacket, axle sleeve and two ends surrounds cavity; Be full of in described cavity and have lubricant oil, and in cavity, be arranged in sequence with some rubber seal be placed on axle sleeve from front to back; The spring providing radial tightening power is installed in described rubber seal; Described some rubber seal are divided into two groups, front and back, and the cavity between two groups of rubber seal is warning grease chamber; Described sealing oil puts the hole having and be communicated with gravity oil tank warning grease chamber.
Improve as one, described axle sleeve has the groove of annular; The limiting stopper be fixed on sealing seat can slide along described groove.Prevent whole mechanical seal device axial float.
Preferred as one, described rubber seal is 4, and is equally divided into two groups, front and back.There is provided certain redundancy, when certain rubber seal lost efficacy, other seal rings still can carry out seal operation.
Usefulness of the present utility model is: the mechanical seal device with said structure, is applicable to the special operation condition of screw shaft of ship, its long service life, stable performance.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Mark in figure: 1 axle sleeve, 2 back-up rings, 3 sealing oil jackets, 4 rubber seal, 5 holes, 6 springs, 7 warning grease chambeies, 8 sealing seats, 9 stern tube shafts, 10 limiting stoppers.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technological scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1, the utility model comprises the sealing seat 8 be connected with hull, and for installing the sealing oil jacket 3 of rubber seal 4; The back-up ring 2 at described sealing seat 8, sealing oil jacket 3, axle sleeve 1 and two ends surrounds cavity; Be full of in described cavity and have lubricant oil, and in cavity, be arranged in sequence with some rubber seal 4 be placed on axle sleeve 1 from front to back; The spring 6 providing radial tightening power is installed in described rubber seal 4; Described some rubber seal 4 are divided into two groups, front and back, and the cavity between two groups of rubber seal 4 is warning grease chamber 7; Described sealing oil jacket 3 has the hole 5 be communicated with gravity oil tank warning grease chamber 7.Described axle sleeve 1 has the groove of annular; The limiting stopper 10 be fixed on sealing seat 8 can slide along described groove.Described rubber seal 4 is preferably 4, and is equally divided into two groups, front and back.
Mechanical seal entirety installed on stern tube shaft 9, conditioner envelope position, is connected and fixed sealing seat 3 and hull with construction bolt, relies on securing means to be fixed on stern tube shaft 9 by axle sleeve 1.Stern tube shaft 9 rotarily drives axle sleeve 1 and rotates together, the endoporus of 4 groups of rubber seal 4 has contractile force under spring 6 acts on, make rubber seal 4 endoporus and axle sleeve 1 close contact all the time, because of the structure of rubber seal 4, under hydraulic pressure effect, also can make rubber seal 4 and axle sleeve 1 close contact and reach sealing effect.
Along with the running of mechanical seal, the outer surface of axle sleeve 1 can by wearing and tearing slowly.A corrosion resistant spring 6 is installed in rubber seal 4, axle sleeve 1 be worn rear spring 6 can strain rubber seal 4 continue contact with axle sleeve 1, continue to realize sealing effect, prolonged mechanical seal working life.
Rubber seal 4 is except outermost one side contacted with water environment, all lubricant oil is full of in all the other spatial joint clearances, lubricant oil is directly communicated with gravity oil tank, both to the phase mutual friction lubricate that rubber seal 4 and axle 1 overlap, the pressure that water environment brings to rubber seal 4 had also been balanced.Arrange alarm grease chamber 7 in the middle of two groups of rubber seal 4, in gravity oil tank, liquid level height changes relevant with the pressure of environment residing for mechanical seal.When mechanical seal is broken down, residing ambient pressure variations will trigger Oil Tank liquid level alarm contact, thus Timeliness coverage problem.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (3)
1. a naval vessel stern shaft mechanical sealing device, comprises the sealing seat be connected with hull, and for installing the sealing oil jacket of rubber seal; It is characterized in that: the back-up ring at described sealing seat, sealing oil jacket, axle sleeve and two ends surrounds cavity; Be full of in described cavity and have lubricant oil, and in cavity, be arranged in sequence with some rubber seal be placed on axle sleeve from front to back; The spring providing radial tightening power is installed in described rubber seal; Described some rubber seal are divided into two groups, front and back, and the cavity between two groups of rubber seal is warning grease chamber; Described sealing oil puts the hole having and be communicated with gravity oil tank warning grease chamber.
2. a kind of naval vessel according to claim 1 stern shaft mechanical sealing device, is characterized in that: the groove described axle sleeve having annular; The limiting stopper be fixed on sealing seat can slide along described groove.
3. a kind of naval vessel according to claim 1 stern shaft mechanical sealing device, is characterized in that: described rubber seal is 4, and is equally divided into two groups, front and back.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520297801.9U CN204677766U (en) | 2015-05-11 | 2015-05-11 | Naval vessel stern shaft mechanical sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520297801.9U CN204677766U (en) | 2015-05-11 | 2015-05-11 | Naval vessel stern shaft mechanical sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204677766U true CN204677766U (en) | 2015-09-30 |
Family
ID=54177459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520297801.9U Expired - Fee Related CN204677766U (en) | 2015-05-11 | 2015-05-11 | Naval vessel stern shaft mechanical sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204677766U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108087559A (en) * | 2018-01-17 | 2018-05-29 | 中国船舶重工集团公司第七〇四研究所 | PODDED PROPULSOR stern sealing device |
| CN109050860A (en) * | 2018-08-16 | 2018-12-21 | 东台友铭船舶配件有限公司 | A kind of stern shaft seal gland |
| CN109139922A (en) * | 2018-08-16 | 2019-01-04 | 东台友铭船舶配件有限公司 | A kind of alarm type stern shaft seal gland |
-
2015
- 2015-05-11 CN CN201520297801.9U patent/CN204677766U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108087559A (en) * | 2018-01-17 | 2018-05-29 | 中国船舶重工集团公司第七〇四研究所 | PODDED PROPULSOR stern sealing device |
| CN109050860A (en) * | 2018-08-16 | 2018-12-21 | 东台友铭船舶配件有限公司 | A kind of stern shaft seal gland |
| CN109139922A (en) * | 2018-08-16 | 2019-01-04 | 东台友铭船舶配件有限公司 | A kind of alarm type stern shaft seal gland |
| CN109050860B (en) * | 2018-08-16 | 2020-05-26 | 东台友铭船舶配件有限公司 | Stern shaft sealing device |
| CN109139922B (en) * | 2018-08-16 | 2020-05-26 | 东台友铭船舶配件有限公司 | Warning type stern shaft sealing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102359599B (en) | Movable sealing device for telescopic full-revolving rudder paddle | |
| CN204677766U (en) | Naval vessel stern shaft mechanical sealing device | |
| CN201187579Y (en) | Telescopic and full revolving electric propulsion propeller seal device for ship under water | |
| CN101311584B (en) | Shock resistance axial seal device for screw shaft of ship | |
| CN203585339U (en) | Ship tail shaft sealing device | |
| CN102619983A (en) | High-pressure-resistant water-lubrication rudder system sealing device with sealing parts replaceable on site | |
| CN103381882A (en) | Rudder system assembly structure | |
| CN202371176U (en) | Marine bay seal transmission shaft device | |
| CN204591250U (en) | Rotary movable sealing structure and logger | |
| CN204327768U (en) | Liquid slip ring rotating disk stuffing box bearing | |
| CN201180790Y (en) | Turning place sealing device of underwater expansion, full-revolving electric thruster for vessel | |
| CN203428015U (en) | Sliding watertight rudder carrier device | |
| CN203404411U (en) | Underwater valve | |
| CN206087252U (en) | Rudder bearing on interior river steamer | |
| CN103274029A (en) | Compartment end face sealing device | |
| CN101493097B (en) | Principal axis sealing device for submersible pump | |
| CN105042084A (en) | Sealing structure for repairing submersible vehicle/boat stern shaft tube sealing device | |
| CN202228416U (en) | Pump shaft sealing device for cargo oil pump | |
| JP3668709B2 (en) | Seal device for pod propeller propulsion system | |
| CN103434632A (en) | Sliding watertight rudder bearing | |
| CN106043647A (en) | Steering oar sealing device | |
| CN203963027U (en) | The dynamic inflation seal arrangement of meeting an urgent need | |
| CN102829188A (en) | Rear shaft seal device with integral moving ring | |
| CN201448440U (en) | Ship sealing device insensitive to the deep sea pressure | |
| CN101994831A (en) | Ship sealing device free from impact of deep water pressure |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150930 Termination date: 20160511 |