CN107628218A - A kind of stern bearing cast damping unit and preparation method - Google Patents
A kind of stern bearing cast damping unit and preparation method Download PDFInfo
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- CN107628218A CN107628218A CN201710805595.1A CN201710805595A CN107628218A CN 107628218 A CN107628218 A CN 107628218A CN 201710805595 A CN201710805595 A CN 201710805595A CN 107628218 A CN107628218 A CN 107628218A
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- damping unit
- stern bearing
- neck bush
- pour mass
- external bushing
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Abstract
The present invention relates to a kind of stern bearing cast damping unit and preparation method, belong to vibration reduction of ship engineering device technique field.External bushing is placed on neck bush in the damping unit, and one end has flange, and pour mass cast is solidificated between inside and outside bushing；The damping unit is arranged between stern bearing propeller boss and stern bearing；It is connected respectively with stern bearing propeller boss and stern bearing using bolt；Inside and outside bushing is consistent with stern bearing axle hub material, and pour mass material is epoxy casting material, after solidification：Tensile strength >=34MPa, compression strength >=100MPa, cantilever beam unnotched impact strength >=1.7kJ/m2, heat distortion temperature >=70 DEG C, hardness Barcol >=35.The damping unit is quick detachable, overhauls and changes；Transmissibility efficiency of isolation is more than 50%, can effectively control and be transmitted by the vibration of stern bearing to outside hull, realizes the low noise navigation of ship；It can pour into a mould, process in factory, it is not influenced by ambient temperature.
Description
Technical field
The present invention relates to a kind of stern bearing cast damping unit and preparation method, described device is ensureing to meet that support is strong
On the basis of degree, it can effectively control and be transmitted by the vibration of stern bearing to outside hull, realize the low noise navigation of ship, belong to
Vibration reduction of ship engineering device technique field.
Background technology
With the development of marine technology, to navigation comfortableness and concealed more and more higher is required.According in school, carrying will
Ask, rigid attachment used between marine shafting equipment and hull pedestal, it is impossible to mounting dampers, thus lack effective vibration damping,
Vibration isolation measure.Large ship propeller mass is big, and the distribution of stern bearing load is extremely uneven, while is processed, in school by shafting
With the influence of the various factors such as the deformation of hull, its condition of work is quite severe, cause shafting operate caused by mechanical oscillation and
Noise is directly delivered to hull and outside radiative acoustic wave by spring bearings such as stern bearings, turns into shafting overboard passing noise
The main reason for.
Shipbuilding industry devises a kind of stern bearing self-aligning device for stern propeller bearing at present, and described device is
Rubber layer is vulcanized between neck bush and external bushing in a certain length, described device main function is the soft spy using rubber
Property, realize that propeller bearing power load distributing is uniform, reduce bearing wear speed, while using the deformation of rubber layer, can reduce
Transmission of the propeller bearing to ship stern structure.Because rigid attachment should be used between marine shafting equipment and hull pedestal, no
The flexible supports such as energy mounting dampers, therefore, stern bearing self-aligning device can only be installed on propeller bearing, it is impossible to be installed on
Other stern bearings, role are limited.
At present in the ship of part, centering positioning requirements are realized from installation facility, not boring propeller boss hole, in stern bearing
One layer of epoxy resin is directly poured into a mould between propeller boss, sees ship standard CB*/Z321-81《Shaft tube and tail bearing epoxy resin are determined
Position》, methods described requirement in real ship carries out cast implementation, and its environment temperature poured into a mould has keep casting cavity wall not less than 30 DEG C
High requirement, there is duration limitation to require for a lot, and must be realized extremely difficult for the large ship that the north is built.
In addition, because the pour mass in methods described and hull directly cast are integrally formed, it is desirable to it pours into a mould reliability and ship same life-span,
Once actual pouring operation breaks down or materials'use hydraulic performance decline long afterwards, maintenance dismounting will be extremely difficult；Meanwhile the side
Method fails to carry out special vibration and noise reducing design, and its effectiveness in vibration suppression is uncontrollable.
The content of the invention
For defect present in prior art, an object of the present invention is to provide a kind of stern bearing cast damping
Device, the damping unit, which can solve existing stern bearing self-aligning device, can not apply whole stern bearings, cause stern axle
The problem of holding vibration isolation measure deficiency；Solve between existing stern bearing and propeller boss present in direct casting epoxy resin to cast
The problem of environmental requirement height, overhauling dismounting difficulty, and failing to realize effective Vibration Absorbing System Design.
The second object of the present invention is to provide a kind of preparation method of stern bearing cast damping unit.
To realize the purpose of the present invention, there is provided following technical scheme.
A kind of stern bearing pours into a mould damping unit, and the damping unit includes neck bush, pour mass and external bushing.
Wherein, neck bush and external bushing are the cylindrical shape that one end has flange, and external bushing is placed on neck bush, pour mass
It is solidificated in by way of cast between neck bush and external bushing.
It is preferred that the thickness of pour mass is 18mm~25mm.
After solidifying pour mass, in the damping unit, circumferentially have on the flange of neck bush, pour mass and external bushing
One ring through hole and a circle screwed hole, are perfectly even distributed.
The damping unit is arranged between stern bearing propeller boss and stern bearing；Using the first bolt with distance sleeve
The flange on the damping unit is connected with stern bearing propeller boss by the through hole, the screw thread is passed through using the second bolt
Hole connects the flange on the damping unit with stern bearing.
Neck bush and outer lining cover material are consistent with stern bearing axle hub material, and pour mass material is epoxy casting material, Gu
It can be used after change similar to steel plate washer, without obvious deformation during use, performance indications are after solidification：
Tensile strength >=34MPa, compression strength >=100MPa, cantilever beam unnotched impact strength >=1.7kJ/m2, thermal change
Shape temperature >=70 DEG C, hardness Barcol >=35.
It is preferred that pour mass material, which is Jiangsu north logical sequence JN-120A casting type epoxy pads or German EPOCAST 36, pours into a mould type ring
Oxygen pad.
The material for being preferably isolated sleeve is reinforced TFE.
A kind of preparation method of stern bearing cast damping unit of the present invention, methods described step are as follows：
(1) assembling positioning：Using vertical pouring pattern, the neck bush of cleaning and clean outer lining are packed into positioning tool
Luggage is with positioning；
Wherein, clean neck bush and clean external bushing can obtain with the following method：
The surface contacted respectively to neck bush and external bushing with pour mass is using electric steel brush polishing derusting；It is respectively adopted third
Ketone cleans to neck bush and external bushing, and the surface especially contacted with pour mass carries out emphasis cleaning, thoroughly removes liner
Dirt on set and external bushing, sump oil, iron and dust in such as process, cleaning carry out pouring for pour mass as early as possible after terminating
Note, casting surface after depositing for a long time is avoided to be polluted again.
(2) first time encapsulation process：The end face of flange that qualified neck bush and external bushing are positioned to assembling is carried out at sealing
Reason, sheet iron is enclosed in the end face of flange spot welding one of neck bush and external bushing, is sealed at the gap of periphery.
(3) pour mass material is prepared：Epoxy casting material and its curing agent are well mixed in container and prevent bubble band
Enter, obtain well mixed pour mass material.
(4) pour into a mould：The pour mass material obtained after well mixed flows freely into liner with fine strip shape along neck bush outer wall
In cast gap between set and external bushing, graded casting is carried out according to the big I in cast gap, pours be required to every time
Carry out vacuumizing and defoaming.
(5) primary solidification：After vacuumizing and defoaming terminates, in 20 DEG C~25 DEG C solidifications, if what is carried out is graded casting, treat
After pouring into a mould 12h~24h away from first time, subsequently poured into a mould.
(6) solidify：Neck bush and external bushing end face finally pour into a mould and solidify, solidification temperature：20 DEG C~25 DEG C, Gu
Change the use intensity that 48h reaches material.
(7) sample detects：By set quota requirement, in casting process, while the pour mass sample prepared refers to phase
Pass standard carries out performance detection, such as GB1041, GB1040, GB1843 and GB1634.
(8) sealing is removed：After injection body solidification to be poured, the first time encapsulation process carried out in casting process is removed.
(9) pressure testing：The water pressure test, test pressure 0.5MPa, experiment are carried out in the non-end face of flange of the damping unit
Time 10min, it is qualified not occur infiltration phenomenon in the end face of flange of the damping unit.
(10) finish：Endoporus to the damping unit of casting complete and cylindrical carry out finishing by design drawing requirement
Work processing.
(11) second of encapsulation process：After finishing terminates, degreasing glass cloth is added to wind the resistance using pour mass material
The end face of flange of Buddhist nun's device, winding thickness 2mm~3mm；Whole non-flange end using pour mass material to the damping unit
Face is brushed, and brushing thickness is 1mm~2mm, carries out end face seal, obtains a kind of stern bearing cast resistance of the present invention
Buddhist nun's device.
Beneficial effect
1. the invention provides a kind of stern bearing to pour into a mould damping unit, consider that installation, maintenance is convenient on ship, and in repair
And stern bearing replacing needs during overhaul, and moment of torsion is big, and it is big that stern bearing bears pressure because large power ship shafting is transmitted,
Axial dimension is grown, in order to carry bonding strength, it is ensured that stern bearing is safe for operation, and the damping unit is using the with distance sleeve
One bolt is connected with stern bearing propeller boss, is connected using the second bolt with stern bearing, is detachable connection, the connection knot
Configuration formula may be implemented in meet the enough support strengths of shafting equipment on the basis of, it is ensured that sufficiently large transmission torque capability, simultaneously
Further obstruct mechanical oscillation and the transmission of noise；
2. the invention provides a kind of stern bearing to pour into a mould damping unit, the damping unit is ensureing to meet that support is strong
Degree, and without obvious deformation on the basis of, it is different from the acoustic impedance of steel using pour mass material, play the vibration and noise reducing of pour mass
Potential, vibration amplification quantity when making the energy consumption mechanism that it is collectively constituted with shafting, stern structure etc. to reduce resonance, decay pass through
Shafting and its support stern bearing are delivered to the vibrational energy on hull, reduce the vibratory response near resonant frequency, reduce knot
Structure free vibration or the amplitude as caused by impact, to improve the dynamic stability of shafting and stern structure and reduce noise transmission
Ability, realize that ship low noise navigates by water；
3. the invention provides a kind of stern bearing to pour into a mould damping unit, the damping unit is detachable, easy reality
Now dismantle, overhaul and change, there is the function that preferably barrier vibration is transmitted, pass through the isolation of the damping unit transmissibility
Efficiency is more than 50%, and effective attenuation is delivered to the vibrational energy on hull by shafting and its support stern bearing；
4. the invention provides a kind of stern bearing cast damping unit and preparation method thereof, the damping unit and its system
Preparation Method, which may be implemented in factory, to be poured into a mould, processes, and the large ship even in north production can also at any time be installed, used, not by
Ambient temperature effect, it effectively prevent the risk that cast-in-site is unsuccessfully brought.
Brief description of the drawings
Fig. 1 is the structural representation that a kind of stern bearing provided by the invention pours into a mould damping unit.
Fig. 2 is the scheme of installation that a kind of stern bearing provided by the invention pours into a mould damping unit；
Fig. 3 is that a kind of stern bearing provided by the invention pours into a mould the general layout signal that damping unit is applied on ship
Figure.
Wherein, 1-neck bush, 2-pour mass, 3-external bushing, 4-stern bearing propeller boss, 5-distance sleeve, 6-the
One bolt, the 7-the second bolt, 8-stern bearing, 9-propeller, 10-stern tube shaft, 11-hull
Embodiment
Below in conjunction with Figure of description and embodiment, the present invention is further described.
Embodiment 1
As shown in figure 1, a kind of stern bearing cast damping unit, the damping unit include neck bush 1, the and of pour mass 2
External bushing 3.
Wherein, neck bush 1 and external bushing 3 are the cylindrical shape that one end has flange, and external bushing 3 is placed on neck bush 1, poured
Injection body 2 is solidificated in by way of cast between neck bush 1 and external bushing 3.
After solidifying pour mass 2, in the damping unit, circumferentially divide on the flange of neck bush 1, pour mass 2 and external bushing 3
A ring through hole and a circle screwed hole are not evenly distributed with.
Fig. 3 is rough package drawing of the damping unit in hull 11, and propeller 9, stern axle are shown in figure
The 8, damping unit, stern bearing propeller boss 4, particular location of the stern tube shaft 10 in hull 11 are held, as seen from the figure, the damping dress
Put installed between stern bearing propeller boss 4 and stern bearing 8；As shown in Fig. 2 passed through using the first bolt 6 with distance sleeve 5
The through hole connects the flange on the damping unit and stern bearing propeller boss 4, passes through the screwed hole using the second bolt 7
Flange on the damping unit and stern bearing 8 are connected, prevent mechanical oscillation and noise caused by shafting operating direct
Hull 11 and outside radiative acoustic wave are delivered to by the grade spring bearing of stern bearing 8, the thickness of neck bush 1 is 36mm, and external bushing 3 is thick
Spend consistent with stern bearing axle hub material for 32mm, neck bush 1 and outer lining cover material, the thickness of pour mass 2 is 25mm, pour mass
Material is Jiangsu north logical sequence JN-120A casting type epoxy pads, and without obvious deformation during use, performance indications are after solidification：
Tensile strength >=34MPa, compression strength >=117MPa, cantilever beam unnotched impact strength >=1.7kJ/m2, thermal change
Shape temperature >=70 DEG C, hardness Barcol >=35；
Modulus of elasticity (E)=5.4GPa；Density (ρ)=1620kg/m3；Poisson's ratio (μ)=0.337.
The material of distance sleeve 5 is reinforced TFE.
The preparation method step of the stern bearing cast damping unit is as follows：
(1) assembling positioning：Using vertical pouring pattern, with neck bush 1 of the positioning tool to cleaning and cleaning in factory
External bushing 3 carry out assembling positioning；
Wherein, clean neck bush 1 and clean external bushing 3 obtain with the following method：
The surface contacted respectively to neck bush 1 and external bushing 3 with pour mass 2 is using electric steel brush polishing derusting；Adopt respectively
Neck bush 1 and external bushing 3 are cleaned with acetone, the surface especially contacted with pour mass 2 carries out emphasis cleaning, thoroughly clear
Except sump oil, iron and dust in neck bush 1 and the process of external bushing 3 etc., cleaning carries out the cast of pour mass 2 after terminating, keep away
Exempt from casting surface after depositing for a long time to be polluted again.
(2) first time encapsulation process：The end face of flange that qualified neck bush 1 and external bushing 3 are positioned to assembling seals
Processing, sheet iron is enclosed in the end face of flange spot welding one of neck bush 1 and external bushing 3, is sealed at the gap of periphery.
(3) pour mass material is prepared：Epoxy casting material and its curing agent are mixed in container, rotated using paddle
It is dynamic, it is well mixed epoxy casting material and its curing agent, stirring-head, which can not raise, in whipping process exposes liquid level and prevent bubble
Bring into, obtain well mixed pour mass material.
(4) pour into a mould：The pour mass material obtained after well mixed flows freely into liner with fine strip shape along the outer wall of neck bush 1
In cast gap between set 1 and external bushing 3, graded casting is carried out according to the size in cast gap, pours be required to every time
Carry out vacuumizing and defoaming.
(5) primary solidification：After vacuumizing and defoaming terminates, in 20 DEG C of solidifications, progress is graded casting, is treated away from pouring for the first time
After noting 12h, subsequently poured into a mould.
(6) solidify：Neck bush 1 and the end face of external bushing 3 finally pour into a mould and solidify, solidification temperature：20 DEG C, solidification
48h reaches the use intensity of material.
(7) sample detects：By set quota requirement, in casting process, while the pour mass sample prepared is with reference to mark
Quasi- GB1041, GB1040, GB1843 and GB1634 carry out performance detection.
(8) sealing is removed：After injection body 2 to be poured solidifies, the first time encapsulation process carried out in casting process is removed.
(9) pressure testing：The water pressure test, test pressure 0.5MPa, experiment are carried out in the non-end face of flange of the damping unit
Time 10min, it is qualified not occur infiltration phenomenon in the end face of flange of the damping unit.
(10) finish：Endoporus to the damping unit of casting complete and cylindrical carry out finishing by design drawing requirement
Work processing.
(11) second of encapsulation process：After finishing terminates, degreasing glass cloth is added to wind the resistance using pour mass material
The end face of flange of Buddhist nun's device, winding thickness 2mm；The whole non-end face of flange of the damping unit is carried out using pour mass material
Brush, brushing thickness is 1mm, carries out end face seal, obtains a kind of stern bearing cast damping unit described in the present embodiment.
After testing, damping unit described in the present embodiment is applied on China's ship, can effectively be reduced by hull stern knot
The vibration of structure transmission, the efficiency of isolation of transmissibility is 74.22%, and the efficiency of isolation calculation formula of transmissibility is：I=(1-
TA) × 100%；
Wherein：I be transmissibility efficiency of isolation, TAFor transmissibility, its computational methods is referring to Zhu Shijian, He Linbian
Write,《Ship machinery vibration control》, page 25~page 26, National Defense Industry Press, 2006.1.
Embodiment 2
As shown in figure 1, a kind of stern bearing cast damping unit, the thickness of neck bush 1 is 36mm, and the thickness of external bushing 3 is
32mm, the thickness of pour mass 2 are 18mm, and pour mass material is the German casting type epoxy pads of EPOCAST 36, and its performance indications is：
Tensile strength >=49.4MPa, compression strength >=164MPa, cantilever beam unnotched impact strength >=2.0kJ/m2, heat
Deformation temperature >=90 DEG C, hardness Barcol >=55；
Modulus of elasticity (E)=5.61GPa；Density (ρ)=1670kg/m3；Poisson's ratio (μ)=0.337；
Remainder is identical with the corresponding contents in a kind of stern bearing cast damping unit described in embodiment 1.
The preparation method step of stern bearing cast damping unit is as follows described in the present embodiment：
(1) assembling positioning：With the step of embodiment 1 (1).
(2) first time encapsulation process：With the step of embodiment 1 (2).
(3) pour mass material is prepared：With the step of embodiment 1 (3).
(4) pour into a mould：With the step of embodiment 1 (4).
(5) primary solidification：After vacuumizing and defoaming terminates, in 25 DEG C of solidifications, graded casting is carried out, treats to pour into a mould away from first time
After 24h, subsequently poured into a mould.
(6) solidify：Neck bush 1 and the end face of external bushing 3 finally pour into a mould and solidify, 25 DEG C of solidification temperature, solidify 48h
Reach the use intensity of material.
(7) sample detects：With the step of embodiment 1 (7).
(8) sealing is removed：With the step of embodiment 1 (8).
(9) pressure testing：With the step of embodiment 1 (9).
(10) finish：With the step of embodiment 1 (10).
(11) second of encapsulation process：After finishing terminates, degreasing glass cloth is added to wind the resistance using pour mass material
The end face of flange of Buddhist nun's device, winding thickness 3mm；The whole non-end face of flange of the damping unit is carried out using pour mass material
Brush, brushing thickness is 2mm, carries out end face seal, obtains a kind of stern bearing cast damping unit described in the present embodiment.
After testing, damping unit described in the present embodiment is applied on China's ship, can effectively be reduced by hull stern knot
The vibration of structure transmission, the efficiency of isolation of transport is 55.48%, and the efficiency of isolation calculation formula of transmissibility is：I=(1-TA)
× 100%；
Wherein：I be transmissibility efficiency of isolation, TAFor transmissibility, its computational methods is referring to Zhu Shijian, He Linbian
Write,《Ship machinery vibration control》, page 25~page 26, National Defense Industry Press, 2006.1.
Claims (10)
1. a kind of stern bearing pours into a mould damping unit, it is characterised in that：The damping unit includes neck bush (1), pour mass (2)
With external bushing (3)；
Neck bush (1) and external bushing (3) are the cylindrical shape that one end has flange, and external bushing (3) is placed on neck bush (1), poured
Injection body (2) is solidificated in by way of cast between neck bush (1) and external bushing (3)；
After solidifying pour mass (2), in the damping unit, along circle on the flange of neck bush (1), pour mass (2) and external bushing (3)
A ring through hole and a circle screwed hole is distributed with week respectively；
The damping unit is arranged between stern bearing propeller boss (4) and stern bearing (8)；Using with distance sleeve (5)
One bolt (6) is connected the flange on the damping unit and stern bearing propeller boss (4) by through hole, using the second bolt (7)
The flange on the damping unit and stern bearing (8) are connected by screwed hole；
Liner cover material and outer lining cover material are consistent with stern bearing axle hub material, and pour mass material is epoxy casting material, Gu
Performance indications are after change：
Tensile strength >=34MPa, compression strength >=100MPa, cantilever beam unnotched impact strength >=1.7kJ/m2, heat distortion temperature
>=70 DEG C, hardness Barcol >=35.
A kind of 2. stern bearing cast damping unit according to claim 1, it is characterised in that：The thickness of pour mass (2)
For 18mm~25mm.
A kind of 3. stern bearing cast damping unit according to claim 1, it is characterised in that：Neck bush (1), pour mass
(2) and on the flange of external bushing (3) have and be circumferentially respectively uniformly distributed a ring through hole and a circle screwed hole.
A kind of 4. stern bearing cast damping unit according to claim 1, it is characterised in that：Pour mass material is Jiangsu
Northern logical sequence JN-120A casting type epoxy pads or the casting type epoxy pads of German EPOCAST 36.
A kind of 5. stern bearing cast damping unit according to claim 1, it is characterised in that：The material of distance sleeve (5)
Expect for reinforced TFE.
A kind of 6. stern bearing cast damping unit according to claim 2, it is characterised in that：Neck bush (1), pour mass
(2) and on the flange of external bushing (3) have and be circumferentially respectively uniformly distributed a ring through hole and a circle screwed hole.
A kind of 7. stern bearing cast damping unit according to claim 3, it is characterised in that：Pour mass material is Jiangsu
Northern logical sequence JN-120A casting type epoxy pads or the casting type epoxy pads of German EPOCAST 36；The material of distance sleeve (5) is increasing
Strong polytetrafluoroethylene (PTFE).
A kind of 8. stern bearing cast damping unit according to claim 6, it is characterised in that：Pour mass material is Jiangsu
Northern logical sequence JN-120A casting type epoxy pads or the casting type epoxy pads of German EPOCAST 36；The material of distance sleeve (5) is increasing
Strong polytetrafluoroethylene (PTFE).
9. a kind of preparation method of stern bearing cast damping unit as described in any one of claim 1~8, its feature exist
In：Methods described step is as follows：
(1) assembling positioning：Using vertical pouring pattern, with positioning tool to the neck bush (1) of cleaning and the external bushing (3) of cleaning
Carry out assembling positioning；
(2) first time encapsulation process：The end face of flange that qualified neck bush (1) and external bushing (3) are positioned to assembling seals
Processing, sheet iron is enclosed in the end face of flange spot welding one of neck bush (1) and external bushing (3), is sealed at the gap of periphery；
(3) pour mass material is prepared：Epoxy casting material and its curing agent are well mixed in container and prevent bubble from bringing into, is obtained
To well mixed pour mass material；
(4) pour into a mould：The pour mass material obtained after well mixed flows freely into neck bush with fine strip shape along neck bush (1) outer wall
(1) in the cast gap between external bushing (3), graded casting is carried out according to the big I in cast gap, poured every time
Need to carry out vacuumizing and defoaming；
(5) primary solidification：After vacuumizing and defoaming terminates, in 20 DEG C~25 DEG C solidifications, if what is carried out is graded casting, treat away from the
After once-cast 12h~24h, subsequently poured into a mould；
(6) solidify：Neck bush (1) and external bushing (3) end face finally pour into a mould and solidify, solidification temperature：20 DEG C~25 DEG C,
Solidification 48h reaches the use intensity of material；
(7) sample detects：By set quota requirement, in casting process, while the pour mass sample prepared is marked with reference to related
Standard carries out performance detection；
(8) sealing is removed：After injection body (2) solidification to be poured, the first time encapsulation process carried out in casting process is removed；
(9) pressure testing：The water pressure test, test pressure 0.5MPa, test period are carried out in the non-end face of flange of the damping unit
10min, it is qualified not occur infiltration phenomenon in the end face of flange of the damping unit；
(10) finish：Endoporus to the damping unit of casting complete and cylindrical carried out by design drawing requirement at finishing
Reason；
(11) second of encapsulation process：After finishing terminates, the degreasing glass cloth winding damping is added to fill using pour mass material
The end face of flange put, winding thickness 2mm~3mm；The whole non-end face of flange of the damping unit is entered using pour mass material
Row is brushed, and brushing thickness is 1mm~2mm, carries out end face seal, obtains a kind of described stern bearing cast damping unit.
A kind of 10. preparation method of stern bearing cast damping unit according to claim 9, it is characterised in that：It is clean
Neck bush (1) and external bushing (3) obtain with the following method：
The surface contacted respectively to neck bush (1) and external bushing (3) with pour mass (2) is using electric steel brush polishing derusting；Respectively
Neck bush (1) and external bushing (3) are cleaned using acetone, emphasis cleaning is carried out to the surface of pour mass (2) contact, thoroughly
Remove the dirt on neck bush (1) and external bushing (3).
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| CN201710805595.1A CN107628218B (en) | 2017-09-08 | 2017-09-08 | Pouring damping device for stern bearing and preparation method |
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| CN201710805595.1A CN107628218B (en) | 2017-09-08 | 2017-09-08 | Pouring damping device for stern bearing and preparation method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109455286A (en) * | 2018-11-15 | 2019-03-12 | 中国船舶重工集团公司第七〇九研究所 | A kind of ship stern support device of multifunctional unit |
| CN109466695A (en) * | 2018-12-03 | 2019-03-15 | 浙江国际海运职业技术学院 | Stern tube mounting process |
| CN109533260A (en) * | 2018-11-19 | 2019-03-29 | 中国舰船研究设计中心 | Screw shaft of ship commitments beam isolation structure device |
| CN110758676A (en) * | 2019-10-15 | 2020-02-07 | 江苏新扬子造船有限公司 | Epoxy tightness construction process method for stern tube |
| CN114260662A (en) * | 2021-11-11 | 2022-04-01 | 武汉船用机械有限责任公司 | Method for manufacturing shaft system |
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| CN109455286A (en) * | 2018-11-15 | 2019-03-12 | 中国船舶重工集团公司第七〇九研究所 | A kind of ship stern support device of multifunctional unit |
| CN109533260A (en) * | 2018-11-19 | 2019-03-29 | 中国舰船研究设计中心 | Screw shaft of ship commitments beam isolation structure device |
| CN109466695A (en) * | 2018-12-03 | 2019-03-15 | 浙江国际海运职业技术学院 | Stern tube mounting process |
| CN110758676A (en) * | 2019-10-15 | 2020-02-07 | 江苏新扬子造船有限公司 | Epoxy tightness construction process method for stern tube |
| CN110758676B (en) * | 2019-10-15 | 2021-06-25 | 江苏新扬子造船有限公司 | Epoxy tightness construction process method for stern tube |
| CN114260662A (en) * | 2021-11-11 | 2022-04-01 | 武汉船用机械有限责任公司 | Method for manufacturing shaft system |
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Inventor after: Wang Juan Inventor after: Shu Shu Inventor after: Zhang Xuebing Inventor after: Tian Jiabin Inventor after: Wang Gangwei Inventor before: Wang Juan Inventor before: Shu Shu Inventor before: Zhang Bingxue Inventor before: Tian Jiabin Inventor before: Wang Gangwei |