CN108791797A - Sealing structure and method between the positive and negative rotation swinging axle and cabin shell of latent sea device crossing cabin - Google Patents
Sealing structure and method between the positive and negative rotation swinging axle and cabin shell of latent sea device crossing cabin Download PDFInfo
- Publication number
- CN108791797A CN108791797A CN201810955368.1A CN201810955368A CN108791797A CN 108791797 A CN108791797 A CN 108791797A CN 201810955368 A CN201810955368 A CN 201810955368A CN 108791797 A CN108791797 A CN 108791797A
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- China
- Prior art keywords
- sealing
- cabin
- proof
- extra large
- latent
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H23/00—Transmitting power from propulsion power plant to propulsive elements
- B63H23/32—Other parts
- B63H23/321—Bearings or seals specially adapted for propeller shafts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H23/00—Transmitting power from propulsion power plant to propulsive elements
- B63H23/32—Other parts
- B63H23/321—Bearings or seals specially adapted for propeller shafts
- B63H2023/327—Sealings specially adapted for propeller shafts or stern tubes
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Sealing Devices (AREA)
Abstract
Sealing structure and method between a kind of the positive and negative rotation swinging axle and cabin shell of latent extra large device crossing cabin, be the high-pressure undersea water end (W.E.) axis that shaft is positive and negative rotation rotation mode outer diameter be equal to static connector sleeve outer diameter and allow be between the two axial gap connection, then the high-strength abrasion-proof tubulose waterproof cloth for the outer diameter for being more than high-pressure undersea water end (W.E.) axis with internal diameter is loosely sleeved on the outer surface of the shaft being exposed in high pressure sea water and static connector sleeve simultaneously, the sealing of one end of high-strength abrasion-proof tubulose waterproof cloth is fixed in shaft as shaft rotates respectively with two sealing hoops, other end sealing is fixed on remains stationary state on static connector sleeve, block the channel of high pressure sea water leakage, the length of high-strength abrasion-proof tubulose waterproof cloth is more than the distance between two sealing hoops.The present invention can accomplish no matter the pressure of seawater has much, and penetration has mostly strong, and high-strength abrasion-proof waterproof cloth can allow the sealing between the positive and negative rotation crossing cabin axis to swing back and forth and latent extra large device cabin shell to remain zero leakage, allow inside latent extra large device and remain sky cabin.
Description
Technical field
The present invention relates to the latent extra large devices of one kind.More particularly between a kind of the positive and negative rotation swinging axle and cabin shell of latent extra large device crossing cabin
Sealing structure and method.
Background technology
The crossing cabin axle sealing structure of the latent extra large device of the prior art as shown in Figure 1, crossing cabin axis the drive for connecting external component
Shaft part 2 stretches out latent extra large device shell 3, and in high pressure sea water 1, and the low pressure shaft portion 4 of the crossing cabin axis is located at latent extra large device
In shell 3, the position that the low pressure shaft portion 4 is in contact with the latent extra large device shell 3 is sealed by O-ring 5.Although
The rotating speed that drive shaft section 2 rotates is low, and angle range is limited, but 2 forward and reverse of drive shaft section alternate, and frequently turns
Dynamic, O-ring 5 undertakes sealing, since there are huge pressure differences between in seawater and latent sea device cabin, between O-ring 5 and crossing cabin axis
Prodigious frictional force is there is, therefore, the service life of O-ring 5 is very short, and can not estimate the accurate service life of O-ring 5 in advance, dives
Extra large device is extremely serious once 5 catastrophic failure consequence of O-ring in deep-sea is navigated by water, if manned latent extra large device encounters such situation
It just will appear catastrophic accident.
The crossing cabin axle sealing structure and operation principle of the latent extra large device of the prior art have disadvantages that and are difficult to overcome：
1, O-ring is made of macromolecule material or engineering plastics, and sealing after its geometry variation by generating
For restoring force come what is realized, this sealing is only suitable for static seal, is not suitable for dynamic sealing, it is clear that latent sea device positive and negative rotation swing type crossing cabin
O-ring is dynamic sealing between axis and cabin shell；
2, O-ring hardness is low, intensity difference, deflection is big, friction coefficient is big, normal pressure is big, frictional force is big；
3, the frictional force between O-ring and latent extra large device positive and negative rotation swing type crossing cabin axis is alternating load；
4, the fatigue limit of O-ring is low；
5, resistance of the O-ring between latent extra large device positive and negative rotation swing type crossing cabin axis is big, and energy consumption is also big.
Invention content
The technical problem to be solved by the invention is to provide a kind of axis that positive and negative rotation can be allowed to swing back and forth and latent extra large device cabin
Sealing between shell remains zero leakage, allows inside latent extra large device the positive and negative rotation swinging axle of the latent extra large device crossing cabin for remaining sky cabin
Sealing structure between the shell of cabin and method.
The technical solution adopted in the present invention is：A kind of sealing knot between the positive and negative rotation swinging axle and cabin shell of latent extra large device crossing cabin
Structure includes latent extra large device shell, and the latent extra large device shell crosses the tail end inserted with axle sleeve in axis hole, and the axle sleeve passes through one
Be formed in and close on the connecting flange of tail end and be screwed and connect with the extra large device shell, the peripheral surface of the axle sleeve tail end with
The latent extra large device shell is crossed between the inner peripheral surface of axis hole to be made up of sealing ring and is tightly connected, the low pressure axle portion for sea device crossing cabin axis of diving
Divide and run through the axle sleeve, the drive shaft section of latent sea device crossing cabin axis is located at the front end of the axle sleeve, the drive shaft section
Outer diameter is identical as the outer diameter of the axle sleeve, and the two connects for axial gap, in the connection of the drive shaft section and the axle sleeve
The peripheral surface at place is cased with the high-strength abrasion-proof tubulose waterproof cloth that diameter is more than drive shaft section outer diameter and axle sleeve outer diameter, described high-strength
The front end for spending wear-resisting tubulose waterproof cloth is fastened on by the first sealing hoop in the drive shaft section, and with the drive shaft section
Rotation, the rear end of the high-strength abrasion-proof tubulose waterproof cloth are fastened on by the second sealing hoop on the axle sleeve, are stationary.
The drive shaft section and axle sleeve are coated with lubricating oil on the peripheral surface at high-strength abrasion-proof tubulose waterproof cloth
Or lubricating grease.
The length of the high-strength abrasion-proof tubulose waterproof cloth is more than the distance between the first sealing hoop and the second sealing hoop.
It is positive and negative that the encapsulating method of sealing structure between a kind of the positive and negative rotation swinging axle and cabin shell of latent extra large device crossing cabin, which is shaft,
The outer diameter for turning the high-pressure undersea water end (W.E.) axis of rotation mode is equal to the outer diameter of static connector sleeve and allows between the two as axial gap company
It connects, the high-strength abrasion-proof tubulose waterproof cloth for the outer diameter for being then more than high-pressure undersea water end (W.E.) axis with an internal diameter is loosely sleeved on cruelly simultaneously
The outer surface of the shaft and static connector sleeve that are exposed in high pressure sea water, with two sealing hoops respectively high-strength abrasion-proof tubulose waterproof
Wherein one end sealing of cloth is fixed in shaft as shaft rotates, and other end sealing, which is fixed on static connector sleeve, keeps quiet
Only state blocks the channel of high pressure sea water leakage, wherein the length of high-strength abrasion-proof tubulose waterproof cloth be more than two sealing hoops it
Between distance.
Sealing structure and method between the positive and negative rotation swinging axle and cabin shell of the latent extra large device crossing cabin of the present invention, out of latent extra large device cabin
Across cabin, reach in high pressure sea water can only positive and negative rotation is swung in certain angle range crossing cabin axis and the static shell of latent extra large device for shell
Sealing structure between body can accomplish no matter the pressure of seawater has much, and penetration has mostly strong, and high-strength abrasion-proof waterproof cloth is total
The sealing between the crossing cabin axis that positive and negative rotation swings back and forth and latent extra large device cabin shell can be allowed to remain zero leakage, latent extra large device inside is allowed to begin
Empty cabin is kept eventually.Advantage of the present invention is as follows：
1, there is no leakage path.
2, the swing back and forth crossing cabin axis of rotation of positive and negative rotation is freely rotatable within the scope of positive and negative two ultimate angles of setting
With stop, while zero leakage is ensured.
3, the material of high-strength abrasion-proof tubulose waterproof cloth is very soft, and relaxation enough, at work always not by pulling force
And alternating load, suffered external force can be balanced, only along with the frictional force of very little.
4, extra large device of diving navigates by water safe.
5, sealed reliable.
6, sealing life is long.
7, simple in structure, light weight and cost is low.
Description of the drawings
Fig. 1 is the crossing cabin axle sealing structure schematic diagram of the latent extra large device of the prior art；
Fig. 2 is the left view of Fig. 1；
Fig. 3 is the schematic diagram of the sealing structure between the positive and negative rotation swinging axle and cabin shell of the latent extra large device crossing cabin of the present invention；
Fig. 4 is the left view of Fig. 3；
Fig. 5 is structural schematic diagram when crossing cabin axis of the invention is clockwise to extreme position；
Fig. 6 is the structural schematic diagram when crossing cabin axis of the present invention is rotated counterclockwise to extreme position.
In figure
1：High pressure sea water 2：Drive shaft section
3：Latent sea device shell 4：Low pressure shaft portion
5：O-ring 6：Axle sleeve
7：Connecting flange 8：Screw
9：Sealing ring 10：Junction
11：High-strength abrasion-proof tubulose waterproof cloth 12：First sealing hoop
13：Second sealing hoop
Specific implementation mode
With reference to sealing of the embodiment and attached drawing between the positive and negative rotation swinging axle and cabin shell of the latent extra large device crossing cabin of the present invention
Structure is described in detail with method.
As shown in Figure 3, Figure 4, the sealing structure between the positive and negative rotation swinging axle and cabin shell of the latent extra large device crossing cabin of the present invention includes
Latent sea device shell 3, the latent extra large device shell 3 cross the tail end inserted with axle sleeve 6 in axis hole, and the axle sleeve 6 passes through integrally formed
Be fixedly connected with the extra large screw 8 of device shell 3 in the connecting flange 7 for closing on tail end, the peripheral surface of 6 tail end of the axle sleeve with
The latent extra large device shell 3 is crossed between the inner peripheral surface of axis hole to pass through sealing ring 9 and constitute and is tightly connected, the low-pressure shaft for sea device crossing cabin axis of diving
The axle sleeve 6 is run through in part 4, and the drive shaft section 2 of latent sea device crossing cabin axis is located at the front end of the axle sleeve 6, the drive shaft
The outer diameter of part 2 is identical as the outer diameter of the axle sleeve 6, and the two connects for axial gap, is closing on the drive shaft section 2 and institute
The peripheral surface for stating the junction 10 of axle sleeve 6 is cased with the high-strength abrasion-proof pipe that diameter is more than 6 outer diameter of 2 outer diameter of drive shaft section and axle sleeve
The front end of shape waterproof cloth 11, the high-strength abrasion-proof tubulose waterproof cloth 11 is fastened on the driving axle portion by the first sealing hoop 12
Divide on 2, and rotated with the drive shaft section 2, the rear end of the high-strength abrasion-proof tubulose waterproof cloth 11 passes through the second sealing hoop
13 are fastened on the axle sleeve 6, are stationary.The length of the high-strength abrasion-proof tubulose waterproof cloth 11 is more than the first sealing
The distance between hoop 12 and the second sealing hoop 13.The drive shaft section 2 and axle sleeve 6 is positioned at high-strength abrasion-proof tubulose waterproof
Lubricating oil or lubricating grease are coated on peripheral surface at cloth 11.
The encapsulating method of sealing structure between the positive and negative rotation swinging axle and cabin shell of the latent extra large device crossing cabin of the present invention, is that shaft is
The outer diameter of the high-pressure undersea water end (W.E.) axis of positive and negative rotation rotation mode is equal to the outer diameter of static connector sleeve and allows between the two between axial direction
Gap connects, and the high-strength abrasion-proof tubulose waterproof cloth for the outer diameter for being then more than high-pressure undersea water end (W.E.) axis with an internal diameter loosely covers simultaneously
In the outer surface of the shaft and static connector sleeve that are exposed in high pressure sea water, with two sealing hoops respectively high-strength abrasion-proof tubulose
Wherein one end sealing of waterproof cloth is fixed in shaft as shaft rotates, and other end sealing, which is fixed on static connector sleeve, to be protected
Stationary state is held, the channel of high pressure sea water leakage is blocked, wherein the length of high-strength abrasion-proof tubulose waterproof cloth is more than two sealings
The distance between hoop.
Sealing structure and method between the positive and negative rotation swinging axle and cabin shell of the latent extra large device crossing cabin of the present invention, such as Fig. 3, Fig. 4 institute
Show, be the fundamental characteristics of the flexibility and superpower pull resistance and pressure equilibrium that utilize high-strength abrasion-proof tubulose waterproof cloth 11,
It is made into tubular, caliber is more than the diameter of axle of the drive shaft section for the crossing cabin axis that positive and negative rotation is swung, while being loosely sleeved on
On the outer surface of drive shaft section 2 and axle sleeve 6, due to high-strength abrasion-proof tubulose waterproof cloth 11 one end with the first sealing hoop 11 with
Drive shaft section 2 is bundled and is tightened, the other end the second sealing hoop 13 and the static axis of high-strength abrasion-proof tubulose waterproof cloth 11
Set 6 is bundled and is tightened, and the length of high-strength abrasion-proof tubulose waterproof cloth is more than the distance between two sealing hoops.Then in super-pressure
Deep sea water in the inner wall of high-strength abrasion-proof tubulose waterproof cloth 11 be close to rigid drive shaft section 2 and static axle sleeve always
6 outer surface, on the other hand, as long as the gap between drive shaft section 2 and static axle sleeve 6 is sufficiently small, high-strength abrasion-proof
Tubulose waterproof cloth 11 is not by any pulling force.It, can be in high-strength abrasion-proof tubulose waterproof cloth 26 and drive shaft in order to reduce frictional force
Suitable lubricating oil or lubricating grease are smeared between part 2 and axle sleeve 6.Fig. 3 is that drive shaft section 2 is general residing for swing rotary
Position, Fig. 5 are that drive shaft section 2 is rotated in clockwise oscillation to extreme position, and Fig. 6 is drive shaft section 2 in counter-clockwise swing
It rotates to extreme position.As long as it can be seen that ensureing its foot when bundling and tightening high-strength abrasion-proof tubulose waterproof cloth 11
Enough relaxations, rigid drive shaft section 2 can be freely rotatable and stop within the scope of positive and negative two ultimate angles of setting,
And ensure that the sealing between the axis that positive and negative rotation swings back and forth and latent extra large device cabin shell remains zero leakage.
Claims (4)
1. the sealing structure between a kind of the positive and negative rotation swinging axle and cabin shell of latent extra large device crossing cabin, includes latent extra large device shell (3), special
Sign is that the latent extra large device shell (3) crosses the tail end inserted with axle sleeve (6) in axis hole, and the axle sleeve (6) passes through integrally formed
It is fixedly connected with screw (8) with the extra large device shell (3) in the connecting flange (7) for closing on tail end, axle sleeve (6) tail end
Peripheral surface and the latent extra large device shell (3) are crossed between the inner peripheral surface of axis hole to be made up of sealing ring (9) and be tightly connected, and latent sea device is worn
The low pressure shaft portion (4) of cabin axis runs through the axle sleeve (6), and the drive shaft section (2) of latent sea device crossing cabin axis is located at the axle sleeve
(6) outer diameter of front end, the drive shaft section (2) is identical as the outer diameter of the axle sleeve (6), and the two connects for axial gap,
Peripheral surface in the drive shaft section (2) Yu the junction (10) of the axle sleeve (6) is cased with diameter and is more than drive shaft section (2)
The high-strength abrasion-proof tubulose waterproof cloth (11) of outer diameter and axle sleeve (6) outer diameter, before the high-strength abrasion-proof tubulose waterproof cloth (11)
End is fastened on by the first sealing hoop (12) in the drive shaft section (2), and is rotated with the drive shaft section (2), described
The rear end of high-strength abrasion-proof tubulose waterproof cloth (11) is fastened on by the second sealing hoop (13) on the axle sleeve (6), for it is static not
It is dynamic.
2. the sealing structure between the positive and negative rotation swinging axle and cabin shell of latent extra large device crossing cabin according to claim 1, feature exist
In the drive shaft section (2) and axle sleeve (6) are coated on the peripheral surface at high-strength abrasion-proof tubulose waterproof cloth (11)
Lubricating oil or lubricating grease.
3. the sealing structure between the positive and negative rotation swinging axle and cabin shell of latent extra large device crossing cabin according to claim 1, feature exist
In the length of the high-strength abrasion-proof tubulose waterproof cloth (11) is more than between the first sealing hoop (12) and the second sealing hoop (13)
Distance.
4. the sealing side of the sealing structure between a kind of the positive and negative rotation swinging axle and cabin shell of latent extra large device crossing cabin described in claim 1
Method, which is characterized in that be that the outer diameter for the high-pressure undersea water end (W.E.) axis that shaft is positive and negative rotation rotation mode is equal to the outer diameter of static connector sleeve
And it is that axial gap connects between the two to allow, and the high-strength abrasion-proof of the outer diameter of high-pressure undersea water end (W.E.) axis is then more than with an internal diameter
Tubulose waterproof cloth is loosely sleeved on the outer surface of the shaft being exposed in high pressure sea water and static connector sleeve simultaneously, is sealed with two
Hoop is respectively fixed in shaft the sealing of wherein one end of high-strength abrasion-proof tubulose waterproof cloth as shaft rotates, other end sealing
It is fixed on remains stationary state on static connector sleeve, blocks the channel of high pressure sea water leakage, wherein high-strength abrasion-proof tubulose is anti-
The length of water cloth is more than the distance between two sealing hoops.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810955368.1A CN108791797A (en) | 2018-08-21 | 2018-08-21 | Sealing structure and method between the positive and negative rotation swinging axle and cabin shell of latent sea device crossing cabin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810955368.1A CN108791797A (en) | 2018-08-21 | 2018-08-21 | Sealing structure and method between the positive and negative rotation swinging axle and cabin shell of latent sea device crossing cabin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108791797A true CN108791797A (en) | 2018-11-13 |
Family
ID=64080730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810955368.1A Pending CN108791797A (en) | 2018-08-21 | 2018-08-21 | Sealing structure and method between the positive and negative rotation swinging axle and cabin shell of latent sea device crossing cabin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108791797A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0133073A2 (en) * | 1983-06-27 | 1985-02-13 | ELITE MARINE (société anonyme) | Mechanical seal |
| CN102359599A (en) * | 2011-09-07 | 2012-02-22 | 武汉船用机械有限责任公司 | Movable sealing device for telescopic full-revolving rudder paddle |
| CN202320765U (en) * | 2011-11-08 | 2012-07-11 | 珠海杰腾造船有限公司 | Easy assembly and disassembly type stern tube |
| CN203309109U (en) * | 2013-04-15 | 2013-11-27 | 涡阳县信隆船舶附件有限公司 | Tail shaft sealing structure |
| CN104265902A (en) * | 2014-09-19 | 2015-01-07 | 无锡太博泵业有限公司 | Mechanical sealing mechanism |
| CN105402409A (en) * | 2014-09-09 | 2016-03-16 | 通用汽车环球科技运作有限责任公司 | Sealing boot assembly |
-
2018
- 2018-08-21 CN CN201810955368.1A patent/CN108791797A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0133073A2 (en) * | 1983-06-27 | 1985-02-13 | ELITE MARINE (société anonyme) | Mechanical seal |
| CN102359599A (en) * | 2011-09-07 | 2012-02-22 | 武汉船用机械有限责任公司 | Movable sealing device for telescopic full-revolving rudder paddle |
| CN202320765U (en) * | 2011-11-08 | 2012-07-11 | 珠海杰腾造船有限公司 | Easy assembly and disassembly type stern tube |
| CN203309109U (en) * | 2013-04-15 | 2013-11-27 | 涡阳县信隆船舶附件有限公司 | Tail shaft sealing structure |
| CN105402409A (en) * | 2014-09-09 | 2016-03-16 | 通用汽车环球科技运作有限责任公司 | Sealing boot assembly |
| CN104265902A (en) * | 2014-09-19 | 2015-01-07 | 无锡太博泵业有限公司 | Mechanical sealing mechanism |
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