CN109973656A - From centering stern shaft seal gland - Google Patents
From centering stern shaft seal gland Download PDFInfo
- Publication number
- CN109973656A CN109973656A CN201910331248.9A CN201910331248A CN109973656A CN 109973656 A CN109973656 A CN 109973656A CN 201910331248 A CN201910331248 A CN 201910331248A CN 109973656 A CN109973656 A CN 109973656A
- Authority
- CN
- China
- Prior art keywords
- seat
- stationary
- ring
- stern
- seal
- 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.)
- Pending
Links
- 210000004907 gland Anatomy 0.000 title claims abstract description 24
- 238000007789 sealing Methods 0.000 claims abstract description 83
- 210000002826 placenta Anatomy 0.000 claims abstract description 20
- 239000000498 cooling water Substances 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 230000003068 static effect Effects 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 230000001788 irregular Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000001141 propulsive effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- 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
- B63H23/34—Propeller shafts; Paddle-wheel shafts; Attachment of propellers on shafts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/162—Special parts or details relating to lubrication or cooling of the sealing itself
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/40—Sealings between relatively-moving surfaces by means of fluid
Abstract
It is of the invention from centering stern shaft seal gland, including the rotating seat being anchored on stern tube shaft, moving sealing ring is fixedly installed on rotating seat, rotating support has stationary ring bracket on the rotating seat, the stationary ring bracket is fixedly connected with seal receptacle, it is movably installed with stationary seat on seal receptacle, stationary ring pressure spring is supported between seal receptacle and stationary seat, the rotary centerline of the rotating seat, stationary ring bracket and stationary seat is on same straight line；The stationary seal ring and moving sealing ring being fixedly installed on stationary seat constitute end face seal pair；One end of seal receptacle and flexibility connection pipe is mutually connected, the other end and ship stern seat of flexibility connection pipe are mutually connected, the rear end for the ship stern seat being placed on stern tube shaft is fixedly installed with blanket gas placenta, embedded with sealing pneumatic tyre on the blanket gas placenta, the tire that the air inflation nozzle being installed on blanket gas placenta leads to sealing pneumatic tyre is intracavitary.The sealing device ensure that moving sealing ring, stationary ring rotate coaxially always, and the two position is fixed, and sealing effect is stablized.
Description
Technical field
The present invention relates to the stern shaft seal glands of marine propulsion shafting more particularly to one kind can follow stern tube shaft axial float
Or the face seals of radial displacement.
Background technique
Stern tube shaft is the important component on ship, and one end connects propeller, other end tooth connection roller box or shaft coupling again with
Engine is connected, to prevent seawater from penetrating into cabin along stern tube shaft, it is necessary to by stern shaft seal gland to the stern tube shaft for passing through cabin
Strict sealing is carried out, to ensure safety of ship, efficient operation.
End surface of screw shaft of ship mechanical sealing structure is currently used screw shaft of ship water sealing device, stern shaft seal dress
Setting includes the opposite stationary seal ring and moving sealing ring slided, and stationary seal ring is installed on stationary seal ring seat, and the stationary seal ring seat is again
It is fixed on hull stern tube socket by elastic compensating body and sealing device mounting seat；And moving sealing ring then passes through moving sealing ring seat
It is anchored on screw shaft of ship with components such as transmission snap rings.Due in existing stern tube shaft end surface mechanical sealing structure stationary seal ring with
Sealing device mounting seat (or cabin body) keeps relatively fixed state, and moving sealing ring is then in solid with the screw shaft of ship of rotation
Determine connection status, i.e. stationary seal ring is mutually fixed with mounting seat, and moving sealing ring is then servo-actuated with stern tube shaft, not can avoid dynamic and static ring
Between play to axial and circular runout.
The revolution of propeller for vessels both can generate propulsive force to ship, but also stern tube shaft generates periodic vibration and flexure,
And cause reciprocal axial float, and axial float of the stern tube shaft with respect to cabin and circular runout, necessarily cause existing end face seal to fill
Set the variation of axial seal and the drift or oscillation of sealing surface position, thus deteriorate stern tube shaft end surface mechanical sealing working environment and
Sealing performance.It will lead between rotating ring and stationary ring in the play of stern tube shaft in existing structure and bounce first and irregular sealing occur
Gap variation, since this irregular gap variation has the higher characteristic of the frequency, the response speed of elastic compensating part is difficult to
The variation in the gap is compensated, so that the sealing performance decline and sealing performance between rotating ring and stationary ring is unstable, water is caused to leak
And lose sealing effect.Secondly the relatively radially bounce between this dynamic and static ring and axial float, increase the mill between sealing surface
Speed and abrasion loss are damaged, the damage and failure of end surface mechanical sealing are not only accelerated, but also similarly will lead between sealing cooperation
Gap increases, and water leakage rate increases.Furthermore play and bounce, moving sealing ring and stationary seal ring structure with stern tube shaft with respect to ship cabin
At sealing contact surface position be always formed radially random drift in the two, or even form oscillation, lead to palette face position
Set unstable, increase water leakage probability, reduction sealing performance.Therefore existing stern tube shaft end face mechanical sealing device is due to intrinsic
Fault of construction, so that there is play and circular runout to axial with not can avoid between stationary seal ring and moving sealing ring, it is this
Being not fixed for dynamic and static ring relative position necessarily causes sealing performance unstable, and sealing effect reduces, and service life is short, or even meeting
There is catching phenomenon.
Summary of the invention
For above-mentioned deficiency present in the prior art, technical problem to be solved by the invention is to provide a kind of sealing is dynamic
Ring, stationary ring position are fixed, and sealing effect is stable from centering stern shaft seal gland.
In order to solve the above-mentioned technical problem, of the invention from centering stern shaft seal gland, it is dynamic on stern tube shaft including being anchored on
Ring seat is fixedly installed with moving sealing ring on rotating seat, and rotating support has stationary ring bracket on the rotating seat, the stationary ring bracket with
Seal receptacle is fixedly connected, and stationary seat is movably installed on seal receptacle, and stationary ring pressure spring, institute are supported between seal receptacle and stationary seat
The rotary centerline for stating rotating seat, stationary ring bracket and stationary seat is on same straight line；The sealing being fixedly installed on stationary seat
Stationary ring and moving sealing ring constitute end face seal pair；One end of seal receptacle and flexibility connection pipe is mutually connected, the other end of flexibility connection pipe
It is mutually connected with ship stern seat, the rear end for the ship stern seat being placed on stern tube shaft is fixedly installed with blanket gas placenta, the blanket gas placenta
Upper to be embedded with sealing pneumatic tyre, the tire that the air inflation nozzle being installed on blanket gas placenta leads to sealing pneumatic tyre is intracavitary.
In said structure, since the stationary seat for being equipped with stationary seal ring is supported on by seal receptacle and stationary ring holder pivots
Rotating seat, and the rotary centerline of rotating seat, stationary ring bracket and stationary seat is on same straight line, the stationary seat of stationary seal ring
It is to be fixed on stern tube shaft by rotating seat, this allows for the rotating ring for constituting end face seal pair and stationary ring relative position is protected always
It holds constant, forms the follower structure of rotating ring and stationary ring, the end face seal pair that dynamic and static ring is constituted is not opposite between by stern tube shaft and cabin
The influence of axial float and circular runout not only effectively prevents the irregular eccentric wear between rotating ring, stationary ring, but also keeps dynamic and static
Ring fits closely always, there is sealing performance to stablize, significant advantage with long service life.Again since flexibility connection pipe one end is fixed in
On the attachment base of end face, the other end and ship stern seat are mutually connected, which has not only blocked leakage of the water into ship cabin, and
And axial float of the stern tube shaft with respect to ship cabin and circular runout can be fully compensated, it is entirely avoided because of stern between stern tube shaft and cabin
The influence of axis rotary vibration, hull and stern tube shaft deflection deformation to face seals, it is ensured that face seals are run on well
Working condition in.Also due to ship stern seat is placed on stern tube shaft, so that the bearing state of stern tube shaft is effectively improved, even if hull
Stern deforms, and is also easy to adjustment stern tube shaft position；The structure also effectively simplifies stern tube shaft mounting process simultaneously, eliminates
Complicated stern tube shaft hole bore hole process；It is fixedly installed on the blanket gas placenta of stern tube shaft base rear end embedded with sealing pneumatic tyre and inflation
Mouth, the structure can not only be used for low speed operation sealing and safeguard sealing again convenient for forming shafting.
The preferred embodiment of the present invention, the stationary ring bracket is by stationary ring bracket bearing rotating support on rotating seat.
Guarantee Positive rotational of the stationary ring bracket on rotating seat.
Further embodiment of the invention, the stationary seat being socketed on seal receptacle can slide axially, in seal receptacle and
Sealing ring is provided in the set junction of stationary seat.The structure ensure that the dynamic and static ring of sealing is reliably axially bonded, effective to be formed
End face seal pair.
The preferred embodiment of the present invention, the seal receptacle are placed on stern tube shaft, which passes through sealing device flange
It is mutually connected with flexibility connection pipe.The ship stern seat is fixedly connected with by ship stern seat flange with flexibility connection pipe.Facilitate flexibility connection pipe with
Tight connecting seat and ship stern seat are connected and fixed.
Further embodiment of the invention is provided with rotating ring pin, the sealing between the moving sealing ring and rotating seat
Stationary ring pin is set between stationary ring and stationary seat.The relative rotation of dynamic and static ring can effectively be driven.
The preferred embodiment of the present invention is equipped with cooling water nozzle on the seal receptacle, on the sealed seat of the cooling water nozzle
Cooling water channel lead to moving sealing ring and stationary seal ring.The frictional heat that sealing pair is taken away by cooling water guarantees the close of sealing pair
Sealing property.
The preferred embodiment of the present invention, the flexibility connection pipe are metal bellows or rubber bellows.Using bellows
Structure can be realized the compensation of axial direction, radial displacement.
The preferred embodiment of the present invention, the blanket gas placenta seals pneumatic tyre embedded with two column, on blanket gas placenta
Two air inflation nozzles are at least installed, each column sealing pneumatic tyre is corresponding with an air inflation nozzle.Pneumatic tyre structure, Ke Yifen are sealed using two column
It Shi Xian not high-low pressure inflation.
Further embodiment of the invention is pressed with lip packing by sealing gland in the rear end of blanket gas placenta
Circle.Silt in outside water can be effectively obstructed to invade.
Detailed description of the invention
The present invention is described further from centering stern shaft seal gland with reference to the accompanying drawings and detailed description.
Fig. 1 is of the invention from a kind of the schematic diagram of the section structure of specific embodiment of centering stern shaft seal gland；
Fig. 2 is the enlarged diagram of end face seal structure in structure shown in Fig. 1.
In figure, 1-moving sealing ring, 2-rotating ring pins, 3-rotating seats, 4-stationary ring bracket bearings, 5-bearing inner shield rings,
The outer retaining ring of 6-bearings, 7-stationary ring brackets, 8-stationary seal rings, 9-stationary ring pressing rings, 10-stationary ring pins, 11-stationary seats, 12-
Sealing ring, 13-stationary ring pressure springs, 10-seal receptacles, 15-sealing device flanges, 16-flexibility connection pipes, 17-stern tube shafts, 18-ships
Stern seat flange, 19-ship stern seats, 20-blanket gas placentas, 21-air inflation nozzles, 22-sealing pneumatic tyres, 23-sealing glands, 24-
Lip-type packing, 25-cooling water nozzles, 26-cooling water channels.
Specific embodiment
It is as shown in Figure 1 and Figure 2 from centering stern shaft seal gland, which includes being fixedly installed on stern tube shaft 17
Rotating seat 3, the rotating seat 3 is rotated with stern tube shaft 17 when work.Moving sealing ring 1, moving sealing ring are embedded in the rear end face of rotating seat 3
1 using copper alloy as material.Several rotating ring pins 2 are fitted between moving sealing ring 1 and rotating seat 3, rotating ring pin 2 makes moving sealing ring
1 rotates together with rotating seat 3.
Stationary ring bracket bearing 4 is fixedly installed with by bearing inner shield ring 5 on rotating seat 3, which is rolling
Dynamic ball bearing；Stationary ring bracket 7 is set on stationary ring bracket bearing 4, be fixedly connected with the outer retaining ring 6 of bearing on stationary ring bracket 7 and
It is allowed to axially position.The other end of stationary ring bracket 7 is mutually permanently connected with seal receptacle 14, which is placed in stern tube shaft 17
On.Due to maintaining gap between seal receptacle 14 and stern tube shaft 17, seal receptacle 14 is by stationary ring bracket 7 and stationary ring bracket
4 rotating support of bearing is on rotating seat 3；And the center of rotation of seal receptacle 14, stationary seat 11, stationary ring bracket 7 and rotating seat 3
Line is on same straight line.
Slip is set with stationary seat 11 dynamicly on seal receptacle 14, sets in the set junction of seal receptacle 14 and stationary seat 11
It is equipped with sealing ring 12.Several stationary ring pressure springs 13 are supported between seal receptacle 14 and stationary seat 11, stationary ring pressure spring 13 is cylinder pressure
Contracting spring.Stationary seal ring 8 is pressed with by stationary ring pressing ring 9 on stationary seat 11, stationary seal ring 8 using hard alloy as material,
Several stationary ring pins 10 are fitted between stationary seal ring 8 and stationary seat 11.Moving sealing ring 1 and stationary seal ring 8 mutually can be slided circumferentially
It fits closely dynamicly and constitutes end face seal pair, and rotate coaxially always.
Seal receptacle 14 and one end of flexibility connection pipe 16 are mutually permanently connected by sealing device flange 15.Flexibility connection pipe 16 is adopted
With metal bellows, can also using rubber bellows etc., common bellows, the flexibility connection pipe 16 are placed in stern tube shaft in the market
On 17 axis periphery.It is mutually connected in the other end of flexibility connection pipe 16 by ship stern seat flange 18 and ship stern seat 19, ship stern seat 19
Also it is placed on 17 periphery of stern tube shaft, blanket gas placenta 20 is fixedly installed in the rear end of ship stern seat 19, on blanket gas placenta 20
Pneumatic tyre 22 is sealed embedded with two column by the pressing ring of two sides.In the rear end of blanket gas placenta 20, by gland 23, to be pressed with lip shape close
Seal 24.Two air inflation nozzles 21 are installed on blanket gas placenta 20, each column sealing pneumatic tyre 22 is accordingly communicated with an inflation
Mouth 21.
It is screwed with cooling water nozzle 25 on seal receptacle 14, is additionally provided with cooling water channel 26 on seal receptacle 14, it is cooling when work
Water is after cooling water nozzle 25, cooling water channel 26 flow through the sealing surface that moving sealing ring 1 and stationary seal ring 8 are constituted, then along stern tube shaft surface
Gap outflow.
It is above-mentioned only to have enumerated a kind of preferred embodiment of the invention, but the present invention is not limited thereto, as long as end face is close
It seals secondary rotating ring and stationary ring to be bonded to each other, and remains that confronting coaxial rotates, should all fall within the scope of protection of the present invention.
Claims (10)
1. a kind of from centering stern shaft seal gland, including the rotating seat (3) being anchored on stern tube shaft, the fixed peace on rotating seat (3)
Equipped with moving sealing ring (1), it is characterised in that: rotating support has stationary ring bracket (7) on the rotating seat (3), the stationary ring bracket (7)
It is fixedly connected, is movably installed on seal receptacle (14) stationary seat (11) with seal receptacle (14), seal receptacle (14) and stationary seat
(11) be supported between stationary ring pressure spring (13), the rotating seat (3), stationary ring bracket (7) and stationary seat (11) rotary centerline
On same straight line；The stationary seal ring (8) being fixedly installed on stationary seat (11) and moving sealing ring (1) constitute end face seal
It is secondary；One end of seal receptacle (14) and flexibility connection pipe (16) is mutually connected, the other end and ship stern seat (19) phase of flexibility connection pipe (16)
It is mutually connected, the rear end for the ship stern seat (19) being placed on stern tube shaft (17) is fixedly installed with blanket gas placenta (20), the sealing pneumatic tyre
Embedded with sealing pneumatic tyre (22) on seat (20), the air inflation nozzle (21) being installed on blanket gas placenta (20) leads to sealing pneumatic tyre (22)
Tire it is intracavitary.
2. according to claim 1 from centering stern shaft seal gland, it is characterised in that: the stationary ring bracket (7) passes through quiet
Ring support bearing (4) rotating support is on rotating seat (3).
3. according to claim 1 from centering stern shaft seal gland, it is characterised in that: be socketed on quiet on seal receptacle (14)
Ring seat (11) can slide axially, and be provided with sealing ring (12) in the set junction of seal receptacle (14) and stationary seat (11).
4. according to claim 1 from centering stern shaft seal gland, it is characterised in that: the seal receptacle (14) is placed in stern
On axis (17), which is mutually connected by sealing device flange (15) and flexibility connection pipe (16).
5. according to claim 1 or 4 from centering stern shaft seal gland, it is characterised in that: the ship stern seat (19) passes through
Ship stern seat flange is fixedly connected with flexibility connection pipe (16).
6. according to claim 1 from centering stern shaft seal gland, it is characterised in that: the moving sealing ring (1) and rotating ring
It is provided with rotating ring pin (2) between seat (3), stationary ring pin (10) is set between the stationary seal ring (8) and stationary seat (11).
7. according to claim 1 from centering stern shaft seal gland, it is characterised in that: be equipped on the seal receptacle (14)
Cooling water nozzle (25), the cooling water channel (26) on cooling water nozzle (25) the sealed seat (14) lead to moving sealing ring (11) and sealing
Stationary ring (8).
8. according to claim 1 from centering stern shaft seal gland, it is characterised in that: the flexibility connection pipe (16) is metal
Bellows or rubber bellows.
9. according to claim 1 from centering stern shaft seal gland, it is characterised in that: the blanket gas placenta (20) is embedded in
There are two column to seal pneumatic tyre (22), two air inflation nozzles (21) are at least installed on blanket gas placenta (20), each column seals pneumatic tyre
(22) air inflation nozzle (21) are corresponding with.
10. according to claim 1 from centering stern shaft seal gland, it is characterised in that: after blanket gas placenta (20)
End is pressed with lip-type packing (24) by sealing gland (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910331248.9A CN109973656A (en) | 2019-04-24 | 2019-04-24 | From centering stern shaft seal gland |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910331248.9A CN109973656A (en) | 2019-04-24 | 2019-04-24 | From centering stern shaft seal gland |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109973656A true CN109973656A (en) | 2019-07-05 |
Family
ID=67085958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910331248.9A Pending CN109973656A (en) | 2019-04-24 | 2019-04-24 | From centering stern shaft seal gland |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109973656A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114633865A (en) * | 2022-03-02 | 2022-06-17 | 中国船舶重工集团公司第七一九研究所 | Magnetically supported flexible propulsion shaft system and ship |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201187580Y (en) * | 2008-04-25 | 2009-01-28 | 东台船用配件有限公司 | Metal composite ring type water lubricating trailing axle seal device |
| CN201915909U (en) * | 2010-12-10 | 2011-08-03 | 丹东波纹管密封有限公司 | Screw oil pumping unit seal |
| CN209990908U (en) * | 2019-04-24 | 2020-01-24 | 东台船用配件有限公司 | Self-centering stern shaft sealing device |
-
2019
- 2019-04-24 CN CN201910331248.9A patent/CN109973656A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201187580Y (en) * | 2008-04-25 | 2009-01-28 | 东台船用配件有限公司 | Metal composite ring type water lubricating trailing axle seal device |
| CN201915909U (en) * | 2010-12-10 | 2011-08-03 | 丹东波纹管密封有限公司 | Screw oil pumping unit seal |
| CN209990908U (en) * | 2019-04-24 | 2020-01-24 | 东台船用配件有限公司 | Self-centering stern shaft sealing device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114633865A (en) * | 2022-03-02 | 2022-06-17 | 中国船舶重工集团公司第七一九研究所 | Magnetically supported flexible propulsion shaft system and ship |
| CN114633865B (en) * | 2022-03-02 | 2023-10-27 | 中国船舶重工集团公司第七一九研究所 | Magnetically supported flexible propulsion shafting and vessel |
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