CN202926887U - Dynamic seal structure for fin shaft - Google Patents
Dynamic seal structure for fin shaft Download PDFInfo
- Publication number
- CN202926887U CN202926887U CN 201220529542 CN201220529542U CN202926887U CN 202926887 U CN202926887 U CN 202926887U CN 201220529542 CN201220529542 CN 201220529542 CN 201220529542 U CN201220529542 U CN 201220529542U CN 202926887 U CN202926887 U CN 202926887U
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- CN
- China
- Prior art keywords
- fin
- casing
- axle
- gland
- stuffing box
- 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.)
- Withdrawn - After Issue
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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Sealing Devices (AREA)
Abstract
The utility model aims to provide a dynamic seal structure for a fin shaft. The dynamic seal structure comprises a fin seat, a box body, a pressing cover, a filler box and a shaft sleeve, wherein the shaft sleeve is sleeved on the fin shaft, the box body is fixed on the fin seat, a bearing is mounted between the box body and the fin shaft, the filler box and the pressing cover are sequentially mounted between the box body and the shaft sleeve, and a slit which is used for adding lubricating grease is formed between the pressing cover and the shaft sleeve, thus a labyrinth seal is formed; and the box body is provided with a grease injection port, both the box body and the fin seat are provided with guide grooves, the guide grooves are communicated with the slit between the pressing cover and the shaft sleeve, and the grease injection port is communicated with the guide grooves through a pipeline. According to the dynamic seal structure for the fin shaft, the long-term dynamic seal of a transmission mechanism of a control surface for a rudder, fins and the like of a ship or an underwater vehicle is achieved, and even if a little seawater permeates into the transmission mechanism, the seawater can be discharged through the guide grooves, so that the effectiveness of the dynamic seal is ensured.
Description
Technical field
The utility model relates to a kind of sealing configuration peculiar to vessel.
Background technique
The driving mechanism motive sealing of the control surface such as rudder, fin is very problems of concern of its development and Design always.If it is bad that motive sealing solves, easily cause the cabin water inlet, have influence on the normal running of rudder, fin.When serious, boats and ships or underwater hiding-machine need again to go up the depressed place dismounting, again process.General motive sealing problem, as oil cylinder, the action of piston rod is telescopic, utilizes seal ring just can realize the motive sealing of oil cylinder.Rudder stock, fin axle are different from the manner of execution of oil cylinder, the action axial rotation, and sealing mechanism is in seawater for a long time in addition, is vulnerable to seawater corrosion, therefore need to carry out special processing, guarantee rudder, the motive sealing of fin under sea water immersion.
Summary of the invention
The purpose of this utility model is to provide the fin axle movable sealing structure of the long-term motive sealing problem of the control surface driving mechanisms such as the rudder that solves boats and ships or underwater hiding-machine, fin.
The purpose of this utility model is achieved in that
The utility model fin axle movable sealing structure, it is characterized in that: comprise fin seat, casing, gland, stuffing box, axle sleeve, axle sleeve is enclosed within on the fin axle, casing is fixed on the fin seat, between casing and fin axle, bearing is installed, stuffing box, gland are installed between casing and axle sleeve successively, be provided for adding the gap of lubricating grease between gland and axle sleeve, thereby formation labyrinth seal, the grease inlet is set on casing, on casing and fin seat, guide groove is set all, guide groove is communicated with the gap between gland and axle sleeve, and the grease inlet is by the pipeline communication guide groove.
The utility model can also comprise:
1, also comprise the seepage guide groove, the seepage guide groove passes stuffing box, casing and pedestal.
2, also comprise dustproof stuffing box, thereby dustproof stuffing box is arranged on casing, is enclosed within simultaneously seal case on the fin axle.
3, the first-the 2nd O RunddichtringO is installed between casing and fin seat and is realized static seal, the 3rd-Di five O RunddichtringOs are installed between casing and stuffing box are realized static seal, the the one the second U-shaped folder fabric seal rings are installed, installation the 6th O RunddichtringO and antifouling ring between gland and fin axle between axle sleeve and stuffing box.
4, offer down oil groove between the gap between bearing and gland and axle sleeve, the lubricating grease that pours into by the grease inlet passes through the injection bearing of falling the oil groove.
Advantage of the present utility model is: the utility model has been taked 2 kinds of dynamic sealing technologies simultaneously: packing seal, labyrinth seal.Wherein the U-shaped folder fabric seal ring of the cover of 2 in sealed stuffing box consists of packing seal, and the lubricant grease of filling between the gland of the 2 U-shaped folder fabric seal rings of cover and the gap of axle sleeve consists of labyrinth seal, and can guarantee the lubricated of rotary bearing.In addition, even there is a little seawater to infiltrate, also can discharge by guide groove, guarantee the validity of motive sealing.Take respectively dustproof stuffing box and dust ring at the two ends up and down of casing, avoid impurity to enter, have influence on the effect of motive sealing.For guaranteeing the chronicity of motive sealing, designed the grease ascending pipe, can regularly inject grease, prevent the labyrinth seal inefficacy.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
For example the utility model is described in more detail below in conjunction with accompanying drawing:
In conjunction with Fig. 1, in Fig. 1,12 is the fin axle; Axle sleeve 11 tightly is enclosed within on fin axle 12, the wearing and tearing of avoiding the long-term swing of fin to produce the fin axle.Fin seat 3 is fixed support structures of whole device.Casing 6 is fixed on the fin seat, is used for installing the accessories such as fin axle 12, lower supporting bearing 7, stuffing box 9, dustproof stuffing box 13.Because casing 6 can not rotate with respect to fin seat 3, the junction plane of itself and fin seat 3 is static seal, therefore, has adopted 2 cover O RunddichtringOs to realize sealing.Stuffing box 9 is mainly the motive sealing that realizes the fin axle and the stuffing box that adds, this stuffing box 9 is fixed on casing 6 from low side by bolt, and the junction plane of casing 6 has adopted 3 cover O RunddichtringOs to realize the static seal of 6 of stuffing box and casings, and the while is coated sealer with the surface of contact of fin seat 6.For preventing the bolt looseness of stuffing box 9 connect boxes, all bolt heads have carried out anti-loosening processing.Between axle sleeve 11 and stuffing box 9,2 U-shaped folder fabric seal rings 16 have been installed, the 1st U-shaped folder fabric seal ring utilizes support ring to push down, the 2nd U-shaped folder fabric seal ring withstands with gland 10,1 O RunddichtringO and 1 antifouling ring have been equipped with again in addition on the gland 10 of as shown in Figure 1 second U-shaped folder fabric seal ring, play sealing and antifouling effect, the surface of contact of this gland and stuffing box 9 is smeared sealer simultaneously, and be connected with stuffing box 9 with bolt, all bolt heads on gland also carry out anti-loosening processing.Leave a little gap between gland 10 and axle sleeve 1, lubricating grease is added in this gap, consists of labyrinth seal.Turn on spiral cover 2, by oil hole 1, utilize the oil addition pump of specialty lubricating grease can be filled in gap between gland 10 and axle sleeve 11, the lubricating grease of annotating in addition is filled in lower rolling bearing 7 by guide groove 20, and rolling bearing is also played lubrication.In addition in position as shown in Figure 1, driven a thin guide groove 8, this guide groove 8 passes stuffing box 9, casing 6 and pedestal 3, like this, even due to technological problems, a little seepage appears, and a little seawater of seepage will be gone out by this guide groove 8, can not store in casing 6, or retaining is carried out ship inside through dustproof stuffing box 13 when too much.Be equipped with in addition the dustproof stuffing box 13 with O RunddichtringO 14 on the top of casing 6, prevented that dust from entering casing 6, and play certain seal action.
Claims (9)
1. fin axle movable sealing structure, it is characterized in that: comprise fin seat, casing, gland, stuffing box, axle sleeve, axle sleeve is enclosed within on the fin axle, casing is fixed on the fin seat, between casing and fin axle, bearing is installed, stuffing box, gland are installed between casing and axle sleeve successively, be provided for adding the gap of lubricating grease between gland and axle sleeve, thereby formation labyrinth seal, the grease inlet is set on casing, on casing and fin seat, guide groove is set all, guide groove is communicated with the gap between gland and axle sleeve, and the grease inlet is by the pipeline communication guide groove.
2. fin axle movable sealing structure according to claim 1, it is characterized in that: also comprise the seepage guide groove, the seepage guide groove passes stuffing box, casing and pedestal.
3. fin axle movable sealing structure according to claim 1 and 2 is characterized in that: also comprise dustproof stuffing box, thereby dustproof stuffing box is arranged on casing, is enclosed within simultaneously seal case on the fin axle.
4. fin axle movable sealing structure according to claim 1 and 2, it is characterized in that: the first-the 2nd O RunddichtringO is installed between casing and fin seat is realized static seal, the 3rd-Di five O RunddichtringOs are installed between casing and stuffing box are realized static seal, the the first-the second U-shaped folder fabric seal ring is installed between axle sleeve and stuffing box, the 6th O RunddichtringO and antifouling ring is installed between gland and fin axle.
5. fin axle movable sealing structure according to claim 3, it is characterized in that: the first-the 2nd O RunddichtringO is installed between casing and fin seat is realized static seal, the 3rd-Di five O RunddichtringOs are installed between casing and stuffing box are realized static seal, the the first-the second U-shaped folder fabric seal ring is installed between axle sleeve and stuffing box, the 6th O RunddichtringO and antifouling ring is installed between gland and fin axle.
6. fin axle movable sealing structure according to claim 1 and 2 is characterized in that: offer down oil groove between the gap between bearing and gland and axle sleeve, the lubricating grease that pours into by the grease inlet is by the injection bearing of falling the oil groove.
7. fin axle movable sealing structure according to claim 3 is characterized in that: offer down oil groove between the gap between bearing and gland and axle sleeve, the lubricating grease that pours into by the grease inlet is by the injection bearing of falling the oil groove.
8. fin axle movable sealing structure according to claim 4 is characterized in that: offer down oil groove between the gap between bearing and gland and axle sleeve, the lubricating grease that pours into by the grease inlet is by the injection bearing of falling the oil groove.
9. fin axle movable sealing structure according to claim 5 is characterized in that: offer down oil groove between the gap between bearing and gland and axle sleeve, the lubricating grease that pours into by the grease inlet is by the injection bearing of falling the oil groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220529542 CN202926887U (en) | 2012-10-17 | 2012-10-17 | Dynamic seal structure for fin shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220529542 CN202926887U (en) | 2012-10-17 | 2012-10-17 | Dynamic seal structure for fin shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202926887U true CN202926887U (en) | 2013-05-08 |
Family
ID=48216850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220529542 Withdrawn - After Issue CN202926887U (en) | 2012-10-17 | 2012-10-17 | Dynamic seal structure for fin shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202926887U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913627A (en) * | 2012-10-17 | 2013-02-06 | 哈尔滨工程大学 | Dynamic seal structure of fin shaft |
| CN107121232A (en) * | 2017-05-12 | 2017-09-01 | 哈尔滨工程大学 | A kind of fin shaft device and method for detecting dynamic lift in real time based on laser ranging |
| CN107191594A (en) * | 2017-07-07 | 2017-09-22 | 南京恒兴达机电设备制造有限公司 | underwater sealing device |
| CN114622868A (en) * | 2020-12-10 | 2022-06-14 | 中国科学院沈阳自动化研究所 | Underwater sealing joint |
-
2012
- 2012-10-17 CN CN 201220529542 patent/CN202926887U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913627A (en) * | 2012-10-17 | 2013-02-06 | 哈尔滨工程大学 | Dynamic seal structure of fin shaft |
| CN102913627B (en) * | 2012-10-17 | 2016-01-27 | 哈尔滨工程大学 | Fin axle movable sealing structure |
| CN107121232A (en) * | 2017-05-12 | 2017-09-01 | 哈尔滨工程大学 | A kind of fin shaft device and method for detecting dynamic lift in real time based on laser ranging |
| CN107121232B (en) * | 2017-05-12 | 2019-07-16 | 哈尔滨工程大学 | A kind of fin shaft device and method based on laser ranging real-time detection dynamic lift |
| CN107191594A (en) * | 2017-07-07 | 2017-09-22 | 南京恒兴达机电设备制造有限公司 | underwater sealing device |
| CN114622868A (en) * | 2020-12-10 | 2022-06-14 | 中国科学院沈阳自动化研究所 | Underwater sealing joint |
| CN114622868B (en) * | 2020-12-10 | 2023-09-08 | 中国科学院沈阳自动化研究所 | Underwater sealing joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130508 Effective date of abandoning: 20160127 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |