CN202768856U - Rear shaft sealing device with half type moveable ring - Google Patents
Rear shaft sealing device with half type moveable ring Download PDFInfo
- Publication number
- CN202768856U CN202768856U CN 201220477629 CN201220477629U CN202768856U CN 202768856 U CN202768856 U CN 202768856U CN 201220477629 CN201220477629 CN 201220477629 CN 201220477629 U CN201220477629 U CN 201220477629U CN 202768856 U CN202768856 U CN 202768856U
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- China
- Prior art keywords
- ring
- shell
- rotating ring
- stationary
- moveable
- 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 discloses a rear shaft sealing device with a half type moveable ring. The rear shaft sealing device with the half type moveable ring comprises a moveable ring shell, a moveable ring installed inside the moveable ring shell, a stationary ring shell and a stationary ring installed inside the stationary ring shell. The moveable ring is in frictional fit with the stationary ring. A spring and a propelling nail are arranged between the moveable ring shell and the moveable ring. The propelling nail and the moveable ring are fixedly held through an assembling screw. The stationary ring shell, the moveable ring and the moveable ring shell are of half type structures. A packing ring is arranged between the moveable ring shell and the moveable ring. Packing is arranged between the packing ring and the moveable ring shell. The moveable ring shell is provided with an air releasing channel which is internally provided with an air releasing screw. A frictional ring piece is arranged inside the moveable ring. The stationary ring is provided with a joint surface which is in joint with the moveable ring. The frictional ring piece is provided with a sealing dam and an inclined surface, wherein the sealing dam is in frictional fit with the joint surface of the stationary ring, and the included angle between the sealing dam and the inclined surface ranges from 2 degrees to 5 degrees. The shaft sealing device is convenient to replace and maintain, thereby not only shortening the maintenance time, but also improving the maintenance efficiency.
Description
Technical field
The utility model relates to a kind of gland seal device, relates in particular to a kind of rear shaft seal device with Hafu-type rotating ring.
Background technique
Boats and ships are fastened used stern shaft seal gland at home at present, the most commonly used is a kind of, it is sealing plant for oil-lubricating tail-shaft, sealing plant for oil-lubricating tail-shaft, with compact structure, power loss is little, lubricating oil is revealed the advantages such as few, receive vast welcome with ship unit, yet in actual use, people can find following problem: 1, because sealing plant for oil-lubricating tail-shaft is all-in-one-piece, when device uses certain time limit or damage parts, changing, during the maintenance sealing plant for oil-lubricating tail-shaft, need lay down stern rudder and propeller, greatly increase maintenance man's workload, also reduce maintenance efficiency simultaneously, 2, after device uses certain time limit, find that the sealability between rotating ring and the stationary ring reduces.
Therefore, be necessary to provide a kind of rear shaft seal device with Hafu-type rotating ring that solves the problems of the technologies described above.
The model utility content
A technical problem to be solved in the utility model is: provide a kind of sealability the rear shaft seal device with Hafu-type rotating ring better, easy to maintenance.
For solving the problems of the technologies described above, the utility model adopts following technological scheme: a kind of rear shaft seal device with Hafu-type rotating ring, comprise: the rotating ring shell, be installed on the rotating ring in the rotating ring shell, stationary ring shell and be installed on stationary ring in the stationary ring shell, described rotating ring and stationary ring frictional fit, be provided with spring between described rotating ring shell and the rotating ring and advance nail, between described propelling nail and the rotating ring by the rigging screw fixing, be provided with several O type circles between described stationary ring and the stationary ring shell, described stationary ring shell, rotating ring, the rotating ring shell is the Hafu-type structure, described stationary ring shell is fixed by stationary ring shell screw, described rotating ring is fixed by the rotating ring screw, described rotating ring shell is fixed by rotating ring shell screw, be provided with packing ring between described rotating ring and the rotating ring shell, be provided with filler between described packing ring and the rotating ring shell, pass through the backing-up screw fixing between described packing ring and the rotating ring shell, described rotating ring shell is provided with bleed passage, be provided with bleed screw in the described bleed passage, be provided with the friction ring plate in the described rotating ring, described stationary ring is provided with the mating face that engages with rotating ring, and described friction ring plate is provided with the sealing dam of the mating face frictional fit of stationary ring and with the sealing dam and is the inclined-plane of 2 °～5 ° of settings.
Preferably, in above-mentioned rear shaft seal device, also be provided with anti-fishing net device, pass through lock washer screw fixing between described anti-fishing net device and the stationary ring shell.
Preferably, in above-mentioned rear shaft seal device, described friction ring plate is made by Hastelloy.
The beneficial effects of the utility model: the utility model is by all being arranged to the Hafu-type structure with stationary ring shell, rotating ring, rotating ring shell, thereby so that the replacing of gland seal device and maintenance become simply, not only shortened engineering time, also improved maintenance efficiency.Be provided with the sealing dam of the mating face frictional fit of stationary ring and with the sealing dam by described friction ring plate in addition and be the inclined-plane of 2 °～5 ° of settings, thereby make stationary ring and rub ring plate in the process of friction, the area on sealing dam constantly increases, thereby has improved the sealability between rotating ring and the stationary ring.
Description of drawings
Fig. 1 is the structural representation with rear shaft seal device of Hafu-type rotating ring.
Fig. 2 is the partial enlarged drawing at A place among Fig. 1.
Among Fig. 1 and Fig. 2: 1, rotating ring shell, 2, rotating ring, 3, the stationary ring shell, 4, stationary ring, 5, spring, 6, advance nail, 7, rigging screw, 8, O type circle, 9, stationary ring shell screw, 10, the rotating ring screw, 11, rotating ring shell screw, 12, packing ring, 13, filler, 14, backing-up screw, 15, bleed passage, 16, bleed screw, 17, friction ring plate, 18, the mating face, 19, anti-fishing net device, 20, lock washer screw, 21, the sealing dam, 22, the inclined-plane.
Embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present utility model is described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the utility model, and be not used in restriction the utility model.
See also Fig. 1 and Fig. 2, a kind of rear shaft seal device with Hafu-type rotating ring, comprise: rotating ring shell 1, be installed on the rotating ring 2 in the rotating ring shell 1, stationary ring shell 3 and be installed on stationary ring 4 in the stationary ring shell 3, described rotating ring 2 and stationary ring 4 frictional fit, be provided with spring 5 between described rotating ring shell 1 and the rotating ring 2 and advance nail 6, between described propelling nail 6 and the rotating ring 2 by rigging screw 7 fixings, be provided with several O type circles 8 between described stationary ring 4 and the stationary ring shell 3, described stationary ring shell 3, rotating ring 2, rotating ring shell 1 is Hafu-type structure (being the subdivision structure), described stationary ring shell 3 is fixing by stationary ring shell screw 9, described rotating ring 2 is fixing by rotating ring screw 10, described rotating ring shell 1 is fixing by rotating ring shell screw 11, be provided with packing ring 12 between described rotating ring 2 and the rotating ring shell 1, be provided with filler 13 between described packing ring 12 and the rotating ring shell 1, pass through backing-up screw 14 fixings between described packing ring 12 and the rotating ring shell 1, described rotating ring shell 1 is provided with bleed passage 15, be provided with bleed screw 16 in the described bleed passage 15, open bleed screw 16 gas of sealing the inside of can draining, thereby oil is full of sealed inside.Be provided with friction ring plate 17 in the described rotating ring 2, described stationary ring 4 is provided with the mating face 18 that engages with rotating ring 2, and described friction ring plate 17 is provided with the sealing dam 21 of mating face 18 frictional fit of stationary ring 4 and with sealing dam 21 and is the inclined-plane 22 of 2 °～5 ° of settings.Described rear shaft seal device also is provided with anti-fishing net device 19, passes through lock washer screw 20 fixings between described anti-fishing net device 19 and the stationary ring shell 3.Described friction ring plate 17 is made by Hastelloy.
The utility model is by all being arranged to the Hafu-type structure with stationary ring shell 3, rotating ring 2, rotating ring shell 1, thereby so that the replacing of gland seal device and maintenance become simply, not only shortened engineering time, also improved maintenance efficiency.Be provided with the sealing dam 21 of mating face 18 frictional fit of stationary ring 4 and with the sealing dam by described friction ring plate 17 in addition and be the inclined-plane 22 of 2 °～5 ° of settings, thereby make stationary ring 4 and rub ring plate 17 in the process of friction, the area on sealing dam 21 constantly increases, thereby has improved the sealability between rotating ring 2 and the stationary ring 4.
It should be noted that at last: the above only is preferred embodiment of the present utility model, be not limited to the utility model, although with reference to previous embodiment the utility model is had been described in detail, for a person skilled in the art, it still can be made amendment to the technological scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characteristics wherein is equal to replacement.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (3)
1. rear shaft seal device with Hafu-type rotating ring, comprise: the rotating ring shell, be installed on the rotating ring in the rotating ring shell, stationary ring shell and be installed on stationary ring in the stationary ring shell, it is characterized in that: described rotating ring and stationary ring frictional fit, be provided with spring between described rotating ring shell and the rotating ring and advance nail, between described propelling nail and the rotating ring by the rigging screw fixing, be provided with several O type circles between described stationary ring and the stationary ring shell, described stationary ring shell, rotating ring, the rotating ring shell is the Hafu-type structure, described stationary ring shell is fixed by stationary ring shell screw, described rotating ring is fixed by the rotating ring screw, described rotating ring shell is fixed by rotating ring shell screw, be provided with packing ring between described rotating ring and the rotating ring shell, be provided with filler between described packing ring and the rotating ring shell, pass through the backing-up screw fixing between described packing ring and the rotating ring shell, described rotating ring shell is provided with bleed passage, be provided with bleed screw in the described bleed passage, be provided with the friction ring plate in the described rotating ring, described stationary ring is provided with the mating face that engages with rotating ring, and described friction ring plate is provided with the sealing dam of the mating face frictional fit of stationary ring and with the sealing dam and is the inclined-plane of 2 °～5 ° of settings.
2. a kind of rear shaft seal device with Hafu-type rotating ring as claimed in claim 1, it is characterized in that: described rear shaft seal device also is provided with anti-fishing net device, between described anti-fishing net device and the stationary ring shell by lock washer screw fixing.
3. a kind of rear shaft seal device with Hafu-type rotating ring as claimed in claim 2, it is characterized in that: described friction ring plate is made by Hastelloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220477629 CN202768856U (en) | 2012-09-19 | 2012-09-19 | Rear shaft sealing device with half type moveable ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220477629 CN202768856U (en) | 2012-09-19 | 2012-09-19 | Rear shaft sealing device with half type moveable ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202768856U true CN202768856U (en) | 2013-03-06 |
Family
ID=47775431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220477629 Expired - Fee Related CN202768856U (en) | 2012-09-19 | 2012-09-19 | Rear shaft sealing device with half type moveable ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202768856U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108843790A (en) * | 2018-07-13 | 2018-11-20 | 侯玉琼 | A kind of Mechanical seal |
-
2012
- 2012-09-19 CN CN 201220477629 patent/CN202768856U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108843790A (en) * | 2018-07-13 | 2018-11-20 | 侯玉琼 | A kind of Mechanical seal |
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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: 20130306 Termination date: 20150919 |
|
| EXPY | Termination of patent right or utility model |