CN208010927U - Stern tube shaft spray containment ring - Google Patents
Stern tube shaft spray containment ring Download PDFInfo
- Publication number
- CN208010927U CN208010927U CN201820054286.5U CN201820054286U CN208010927U CN 208010927 U CN208010927 U CN 208010927U CN 201820054286 U CN201820054286 U CN 201820054286U CN 208010927 U CN208010927 U CN 208010927U
- Authority
- CN
- China
- Prior art keywords
- sealing
- spraying
- sealing ring
- alloy
- ring body
- 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
- 239000007921 spray Substances 0.000 title claims abstract description 16
- 238000007789 sealing Methods 0.000 claims abstract description 68
- 238000005507 spraying Methods 0.000 claims abstract description 46
- 239000000956 alloy Substances 0.000 claims abstract description 35
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 32
- 238000000576 coating method Methods 0.000 claims abstract description 23
- 239000011248 coating agent Substances 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 abstract description 12
- 238000005299 abrasion Methods 0.000 abstract description 5
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 abstract description 4
- 230000035939 shock Effects 0.000 abstract description 3
- 239000000843 powder Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 6
- 230000003068 static effect Effects 0.000 description 6
- 210000004907 gland Anatomy 0.000 description 5
- 239000010410 layer Substances 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000010285 flame spraying Methods 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 238000000498 ball milling Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 239000013590 bulk material Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 238000005183 dynamical system Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000000713 high-energy ball milling Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Abstract
The utility model discloses a kind of stern tube shaft spray containment rings, including sealing ring body, it is provided with spraying slot on the sealing surface of the sealing ring body, the spraying slot is annular groove, alloy spraying coating is equipped in the spraying slot, the outer surface of alloy spraying coating and sealing surface are in the same plane, and 0.6 μm -1.0 μm of the plane roughness Ra.The thickness of the alloy spraying coating is 0.4mm -0.5mm, the tungsten carbide of the sprayed on material of the alloy spraying coating at least containing mass ratio 70%.The sealing ring body uses split type structure.It is provided with ontology mesoporous in the sealing ring body, in the body at least provided with a road sealing groove on the hole wall in hole.The utility model is not only at low cost, reasonable for structure, and excellent with high hard high abrasion, shock resistance, is widely used in screw shaft of ship sealing device.
Description
Technical field
The utility model is related to a kind of screw shaft of ship sealing devices, more particularly to the stern shaft seal with end face seal structure
Device relates in particular to the alloy spraying coating in end face seal structure seal ring seal face.
Background technology
In the ship promoted using propeller, stern tube shaft is the important component in its propulsion system, one end connection of stern tube shaft
Propeller, the other end connect paddle shaft dynamical system.Stern shaft seal gland is then the key equipment in stern tube shaft propulsion system, is used for axis
System is pierced by the sealing at hull position, is the device sealed between external dynamic sea and hull stern tube shaft.
The operating condition of screw shaft of ship sealing device is very severe, it except by sharp wear and friction high temperature action in addition to,
Also acted on by ocean, rivers water body containing silt.When large ship drinking water is deeper, screw shaft of ship sealing device still suffers from
The effect of both outboard hydraulic pressure and lubrication static pressure pressure difference；When propeller turns round, and cantilever and uneven load are will produce, caused
Stern tube shaft generates circular runout and eccentric vibrating；When ship is moved backward, stern tube shaft also will produce certain oscillation crosswise.
Since end face seal structure not only has sealed reliable, the small and low in energy consumption advantage of leakage rate, and anti-seismic performance
It is good, it is insensitive to the vibration of rotary shaft, therefore end face seal is also commonly used in stern shaft seal gland.End face seal for stern tube shaft
Structure equally includes the components such as rotating ring, stationary ring and elastic compensating, it is reached by dynamic and static ring with respect to the sealing surface of sliding engagement
To the gland seal device of Drain Resistance；The sealing surface that dynamic and static ring in stern shaft seal gland in end face seal is constituted, does not only exist in low speed
Heavy load condition and vibratory impulse, and generated abrasive wear is penetrated by sharp wear, high temperature friction and silt particle, very
It is easy to form adhesive wear formation ditch dug with a plow with respect to sliding surface position in sealing ring, so that dynamic and static ring sealing working face is wrecked, lead
Stern tube shaft device is caused operation troubles occur and leakage phenomenon occurs.Its hardness theoretically can be improved by changing seal ring material
Prevent occurring to early for adhesive wear phenomenon, but in practical structures simple hardness raising, often bring impact flexibility and
Overall mechanical properties decline, cost becomes high many deficiencies, therefore develop and a kind of having low cost, high abrasion, shock proof close
Seal ring structure and its material are the important channels for improving stern shaft seal gland performance.
Utility model content
For the above problem present in the prior art, the technical problem to be solved by the utility model is to provide a kind of sterns
Axis spray containment ring, it is not only at low cost, it is reasonable for structure, and it is excellent with high hard high abrasion, shock resistance.
In order to solve the above-mentioned technical problem, the utility model the utility model discloses a kind of stern tube shaft spray containments
Ring, including ring body is sealed, it is provided with spraying slot on the sealing surface of the sealing ring body, which is annular groove, at this
It sprays and is equipped with alloy spraying coating in slot, the outer surface of alloy spraying coating and sealing surface are in the same plane, and the plane is coarse
Ra0.6 μm -1.0 μm of degree.
In said structure, double to constitute due to being provided with alloy spraying coating on the sealing surface of sealing ring body
The alloy spraying coating of material seal ring structure, spraying is happened to corresponding to the dynamic and static ring sealing face position slided, alloy spraying coating tool
There are high rigidity, high-wear resistance, effectively enhances the wearability of end face seal structure, prolong the service life, and seawater can be resisted
Corrosion and silt particle damage seal friction；And sealing ring bulk material then uses that impact flexibility is good, material of high mechanical strength, and
It is processed convenient for casting, advantage of lower cost, therefore the utility model has had both high abrasion using the seal ring structure of bi-material layers, resisted
Impact, advantage with long service life, and make handling ease.Also due to only with respect to the sealing surface of sliding in sealing ring body
Position uses the higher cemented carbide material of cost, and body part then uses relatively inexpensive material, and sealing ring is made to obtain
High-wearing feature while high service life, and significantly reduces use and manufacturing cost.Alloy spraying coating surface roughness control
For system between Ra0.6 μm -1.0 μm, so high surface smoothness not only reduces the frictional resistance of seal sliding surface, and
Be effectively reduced the abrasion of dynamic and static ring relative motion, be conducive to end face seal service life extension and high sealing performance it is steady
It is fixed.
The thickness of preferred embodiments of the present invention, the alloy spraying coating is 0.4mm -0.5mm, the alloy
Tungsten carbide of the sprayed on material of sprayed coating at least containing mass ratio 70%.Had using the alloy material based on tungsten carbide high-strength
Degree, high rigidity, wear-resistant, corrosion resistant excellent performance.
Preferred embodiments of the present invention, the sealing ring body use split type structure.The structure is convenient for maintenance
And installation.
Preferred embodiments of the present invention are provided with ontology mesoporous in the sealing ring body, in the body hole
At least provided with a road sealing groove on hole wall.With rational structure.
Description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
Fig. 1 is a kind of main sectional view of specific implementation mode of the utility model stern tube shaft spray containment ring；
Fig. 2 is the left view of structure shown in Fig. 1；
In figure, 1-sealing ring body, 2-alloy spraying coatings, 3-engagement boss, 4-seal grooves, 5-ontology mesoporous,
6-driving pin holes, 7-sealing surfaces.
Specific implementation mode
Stern tube shaft as shown in Figure 1 and Figure 2 spray containment ring, sealing ring body 1 are that two semi-rings are connected to each other and close, and are sealed
Ring body 1 is cast by tin bronze alloys.Half engagement of loops oral area of sealing ring body 1 is provided with engagement boss 3, is engaging
Bolt hole is provided on boss 3, two and half engagement of loops are fixed as the sealing ring in circular ring structure by connection bolt passing through bolt hole
Ontology 1, therefore it is in split type structure to seal ring body 1.Sealing ring body 1 the back side except be provided with engagement boss 3 be additionally provided with drive
Dynamic pin hole 6, driving bearing pin are inserted into driving pin hole 6 and are rotated with band rotary packing ring ontology 1.The front for sealing ring body 1 is close
Cover 7 is provided with circular spraying slot on sealing surface 7, alloy spraying coating 2, spray coating alloy is provided in the spraying slot
The outer surface of layer 2 and sealing surface are in the same plane, 0.8 μm of the roughness Ra of the plane, but its roughness should control
In Ra0.6 μm -1.0 μ ms.2 thickness after grinding of alloy spraying coating is maintained between 0.4mm -0.5mm.Alloy spraying coating
2 are sprayed with alloy composite powder by hot-spraying technique, and tungsten carbide is no less than 70% in alloy composite powder（Mass ratio）,
Also contain other metal components in alloy composite powder.It is equipped with ontology mesoporous 5 in the center of sealing ring body 1, in ontology
Hole 5 is used for across stern tube shaft, is provided with two road sealing grooves 4 on the hole wall of the heart 5 in the body, filled rubber in seal groove 4 when installation
Sealing element.
Component and mass percent for the spray coating alloy layer material for spraying above-mentioned alloy-layer（Wt%）For：TiC：3.0—
5.0, Co:4.0-6.0, SiC:1.0-2.0, Al2O3:0.1-0.15, Cu：0.5-0.8, Ni：0.8-1.0, Mn：0.9—
1.20 Cr:0.8-1.0, remaining is WC.
Stern tube shaft sealing ring bulk process method of the processing with alloy spraying coating is made, which includes following step
Suddenly：
1, there is the sealing ring semi-ring blank of semicircle ring structure, the sealing ring half using tin bronze ZQSn10-1 as cast
The back side of blank is cast with engagement boss and driving pin hole convex ribs, and the engagement boss is for connecting two sealing rings of bolted joints half
Ring, driving pin hole boss is for processing driving pin hole；
2, the faying face of half blank of sealing ring is machined out, takes half blank of sealing ring and close by two after two processing
In engagement boss drilling bolt hole after the opposite engagement of the faying face of half blank of seal ring is fixed, connection bolt across the bolt hole and incite somebody to action
Two half blank combinations of sealing ring are fixed as sealing ring blank；
3, turnery processing is carried out to the outer circle disk of above-mentioned sealing ring blank, centre bore and sealing surface, makes sealing ring billet
The center line of sealing surface on part perpendicular to periphery and centre bore；
4, it gets on the bus in sealing surface and cuts out the spraying slot of circular ring shape and form sealing ring body, circular ring shape sprays slot on sealing surface
The center line of place annulus and the centerline collineation of centre bore spray the deep-controlled between 0.4mm -0.6mm of slot；
5, it after carrying out the defects of flaw detection confirms flawless to above-mentioned sealing ring body, carries out baking and is wiped with acetone to spray
Groove face is applied to degrease, high temperature paster is sticked comprehensively in addition to spraying position on sealing surface or applies other protective layers, to protect
Non-spraying face is protected, blasted rough processing is carried out to spraying slot after sticking protective layer.Sand-blast material is white fused alumina, sandblasting to spray
Ra6 μm of painted groove surface roughness -8 μm；
6, will be matched using high energy ball mill than alloyage sprayed on material by the spray coating alloy material component of setting and quality
Alloy powder is made in the spray coating alloy material of system, substantially equal by the particulate component and component of the complex alloy powder of high-energy ball milling
It is even；
7, the above-mentioned alloy powder through ball milling is preheated to 120 DEG C -150 DEG C, and place 150 min of 120min-to make it
It removes the impurity such as moisture and becomes dry alloy powder；
8, alloy powder is successively sprayed into using supersonic flame spraying technique in spraying slot, until filling up spraying slot；
Supersonic flame spraying, unit type JP-5000;Process parameter table is as follows：Oxygen 1800-2000scfh, kerosene 5.2-
6.0gph, powder feeding gas 18-25scfh, powder feeding rate 100-120g/min, rifle are every all over coating layer thickness 0.10- away from 300-400mm
0.13mm；It is preheated one time, then is sprayed with torch flame before spraying, and pay attention to every cooling between in spraying process；Coating
Thickness 0.4-0.6mm；
9, after the spraying alloy of spraying slot is cooled to room temperature, throw off the high temperature paster on sealing surface, cleaning sealing surface and
Sprayed coating surface carries out grinding to sealing surface and sprayed coating surface, its roughness is made to reach Ra0.8 μm together.It is ground sand
Wheel is skive, is ground to the requirement of drawing size.
Claims (4)
1. a kind of stern tube shaft spray containment ring, including sealing ring body（1）, it is characterised in that：The sealing ring body（1）It is close
Cover（7）On be provided with spraying slot, the spraying slot be annular groove, in the spraying slot be equipped with alloy spraying coating（2）, spray coating alloy
Layer（2）Outer surface and sealing surface（7）It is in the same plane, and 0.6 μm -1.0 μm of the plane roughness Ra.
2. stern tube shaft according to claim 1 spray containment ring, it is characterised in that：The alloy spraying coating（2）Thickness
For 0.4mm -0.5mm.
3. stern tube shaft according to claim 1 or 2 spray containment ring, it is characterised in that：The sealing ring body（1）Using
Split type structure.
4. stern tube shaft according to claim 1 or 2 spray containment ring, it is characterised in that：The sealing ring body（1）On set
It is equipped with ontology mesoporous（5）, hole in the body（5）Hole wall at least provided with a road sealing groove（4）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820054286.5U CN208010927U (en) | 2018-01-13 | 2018-01-13 | Stern tube shaft spray containment ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820054286.5U CN208010927U (en) | 2018-01-13 | 2018-01-13 | Stern tube shaft spray containment ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208010927U true CN208010927U (en) | 2018-10-26 |
Family
ID=63882828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820054286.5U Expired - Fee Related CN208010927U (en) | 2018-01-13 | 2018-01-13 | Stern tube shaft spray containment ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208010927U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108150651A (en) * | 2018-01-13 | 2018-06-12 | 东台市远洋船舶配件有限公司 | Stern tube shaft spray containment ring, sprayed on material and the method for making spray containment ring |
| CN108150651B (en) * | 2018-01-13 | 2024-05-10 | 东台市远洋船舶配件有限公司 | Spray seal ring for stern shaft, spray material and method for manufacturing spray seal ring |
-
2018
- 2018-01-13 CN CN201820054286.5U patent/CN208010927U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108150651A (en) * | 2018-01-13 | 2018-06-12 | 东台市远洋船舶配件有限公司 | Stern tube shaft spray containment ring, sprayed on material and the method for making spray containment ring |
| CN108150651B (en) * | 2018-01-13 | 2024-05-10 | 东台市远洋船舶配件有限公司 | Spray seal ring for stern shaft, spray material and method for manufacturing spray seal ring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181026 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |