CN106958591B - A kind of processing technology of self-lubricating bearing - Google Patents
A kind of processing technology of self-lubricating bearing Download PDFInfo
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- CN106958591B CN106958591B CN201710179710.9A CN201710179710A CN106958591B CN 106958591 B CN106958591 B CN 106958591B CN 201710179710 A CN201710179710 A CN 201710179710A CN 106958591 B CN106958591 B CN 106958591B
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- Prior art keywords
- bearing
- impregnation oils
- oils
- impregnated
- impregnation
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Classifications
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- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/10—Construction relative to lubrication
- F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
- F16C33/103—Construction relative to lubrication with liquid, e.g. oil, as lubricant retained in or near the bearing
- F16C33/104—Construction relative to lubrication with liquid, e.g. oil, as lubricant retained in or near the bearing in a porous body, e.g. oil impregnated sintered sleeve
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/14—Special methods of manufacture; Running-in
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The invention discloses a kind of processing technologys of self-lubricating bearing, the processing technology includes following operation: step S1, it places bearing and impregnation oils: being put into bearing and impregnation oils to be impregnated into steeper, bearing to be impregnated and impregnation oils are respectively placed on different receptacle members, then lock end cap；Step 2, steeper is vacuumized and heated: starting vacuum pump will carry out vacuumize process in steeper；Heat treatment is carried out to steeper simultaneously；Step 3, blowing dipping: under vacuum conditions, bearing to be impregnated is put into the receptacle member for containing impregnation oils and carries out heat preservation dipping 1h, is taken out after cooling, in the step S3, gas is blasted to remove the bubble at bearing surface hole to be impregnated in the bottom for the receptacle member for containing impregnation oils.The bubble at removal bearing surface hole is added in the present invention in process, and then reaching, which reduces bubble, hinders impregnation oils to the dipping of bearing hole, achievees the purpose that improve dipping effect.
Description
Technical field
The present invention relates to self-lubricating bearing processing technique field, in particular to a kind of processing technology of self-lubricating bearing.
Background technique
Self-lubricating bearing be as following techniques processing made from: metal powder and other antifriction material powder compacting, sintering,
Made of shaping and immersion oil, there is cellular structure, in maceration extract (hot oil) after infiltration, lubricating oil is full of between hole；From profit
Bearing makes metal and oily expanded by heating using the swabbing action and frictional heating showed themselves in that due to axle journal rotation, oily extrusion cavities
Gap, and then friction surface plays lubricating action, after bearing is cooling, oil is sucked back into hole again.
The periodical " powder metallurgy industry " that the prior art is published referring in October, 2009, in its 4th phase 18-19 of volume 19
Disclose the dipping method of bearing in " with the experimental study of non-newtonian fluid dipping oiliness bearing " that page is recorded: it is in vacuum
It completes on impregnator, first impregnated bearing is placed on upper pumping board, impregnation oils are covered by lower pumping board is placed on vacuum appearance
In device, lock end cap, start vacuum pump, heat simultaneously, make the environment temperature in container be maintained at 75 DEG C, vacuum degree about
1330Pa maintains 1h in this case, rear-inclined on pumping board, while lower pumping board is pumped, so that impregnated bearing is placed in leaching
In stain oil, then keep the temperature 1h；It is taken out after cooling.
Summary of the invention
After vacuum impregnation captain's time service, ideal vacuum state is often not achieved to vacuumizing for vacuum tank,
In this state, the intrapore gas of bearing is difficult to all be discharged, and when pumping lower pumping board, impregnated bearing is placed in dipping
It is carried out in dipping process in oily, there are part bubbles for bearing surface, this is easy for that impregnation oils is hindered to be immersed in hole, is easy drop
The oil reserve of low bearing.
The object of the present invention is to provide a kind of processing technologys of self-lubricating bearing, and removal bearing surface hole is added in process
The bubble at place, then reaching, which reduces bubble, hinders impregnation oils to the dipping of bearing hole, achievees the purpose that improve dipping effect.
Above-mentioned technical purpose of the invention has the technical scheme that a kind of processing work of self-lubricating bearing
Skill includes the following steps that step S1 places bearing and impregnation oils: being put into bearing and impregnation oils to be impregnated into steeper,
Bearing and impregnation oils to be impregnated is respectively placed on different receptacle members, then locks end cap；Step S2, steeper are taken out true
Sky simultaneously heats: starting vacuum pump will carry out vacuumize process in steeper；Heat treatment is carried out to steeper simultaneously；Step
Blowing dipping: S3 under vacuum conditions, bearing to be impregnated is put into the receptacle member for containing impregnation oils and carries out heat preservation leaching
Stain 1h takes out after cooling, and in the step S3, it is to be impregnated to remove to blast gas in the bottom for the receptacle member for containing impregnation oils
Bubble at bearing surface hole.
Through the above technical solutions, impregnated bearing is placed in when the intrapore gas of bearing is not discharged all
It is carried out in dipping process in impregnation oils, there are part bubbles for bearing surface, the bottom drum of the receptacle member by containing impregnation oils
Enter gas, the bubble at bearing surface hole can be taken away when gas flows through bearing surface, achievees the effect that remove bubble, after
It is immersed in hole without tending to interfere with impregnation oils, so that the oil reserve of bearing is not readily susceptible to very in same dip time
The low influence of reciprocal of duty cycle.
The present invention is further: in the receptacle member of the impregnation oils of splendid attire be equipped with rabbling mechanism, Yu Suoshu step S3 into
When row, impregnation oils are stirred by rabbling mechanism.
Through the above technical solutions, can be improved the mobility of impregnation oils, most when rabbling mechanism is stirred impregnation oils
Reach impregnation oils eventually and enter the intrapore purpose of bearing, while the impregnation oils of flowable state are also beneficial to destroy the gas of bearing surface
Bubble then improves the pickling efficiency of impregnation oils.
The present invention is further: the receptacle member bottom for containing impregnation oils is provided with isolation board and microporous barrier, microporous barrier
It is fitted on isolation board, the bottom formation inlet plenum of isolation board and receptacle member, the top of isolation board and receptacle member is formed
Oil storage region, in step s3, oil storage are placed with impregnation oils in region, and inert gas, inert gas are blasted into inlet plenum
It is entered in impregnation oils by isolation board and microporous barrier.
Through the above technical solutions, impregnation oils can not enter all in inlet plenum through microporous barrier, when to inlet plenum
It inside blasts inert gas to enter in impregnation oils by isolation board and microporous barrier, the bubble warp that inert gas generates in impregnation oils
When crossing bearing surface, the minute bubbles at bearing surface hole can be taken away, then achieve the purpose that improve immersion oil effect.
The present invention is further: the throughput of the inert gas is 16ml/min-20ml/min.
Through the above technical solutions, the bubble that inert gas generates in impregnation oils passes through bearing under the draft speed
When surface, it is sufficient to which the minute bubbles at bearing surface hole are taken away elimination.
The present invention is further: the impregnation oils include machine oil and polymeric additive.
Through the above technical solutions, machine oil is the main part of impregnation oils, and polymeric additive is the auxiliary of impregnation oils
Reagent, polymeric additive are immersed in bearing hole with machine oil, the bearing of completion are impregnated during the work time, in macromolecule
Under the action of additive, the property of bearing be can be promoted, and improve the service life of bearing.
The present invention is further: the high score additive includes polyisobutene and catechol.
Through the above technical solutions, the rub resistance of bearing can be promoted, and bearing is not easy under polyisobutene effect
Its service life extends after being worn；And under the antioxidation of catechol, machine oil has certain inoxidizability, realizes
Machine oil is not easy to be aging, and then the viscosity of machine oil is not easy to improve, in the swabbing action and frictional heating of axle journal rotation,
Make metal and oily expanded by heating, during impregnation oils are squeezed out hole, because the viscosity of impregnation oils does not change, so dipping
Oil can quickly be flowed out out of hole, and friction bearing surface, which plays lubricating action, does not influence the normal work of bearing；After bearing is cooling,
Impregnation oils are sucked back into again during hole also can be quickly so smooth that be flowed into hole.
The present invention is further: the inert gas is nitrogen.
Through the above technical solutions, nitrogen is passed into impregnation oils, it will not be with remaining in impregnation oils outside removing machine oil
Component reacts, that is to say, that is less likely to be damaged impregnation oils, improving dipping has original characteristic, then improves the leaching of bearing
Stain effect.
In summary: the present invention has the advantages that lower: it is main by setting inlet plenum, and nitrogen is passed through into inlet plenum
Gas, nitrogen is moved up in the form of bubble in impregnation oils, can be by bearing surface hole when bubble contact is to bearing surface
Minute bubbles at gap are taken away, and then destroy isolation protective effect of the minute bubbles to hole, so impregnation oils can be fully infiltrated into
In hole, and then the oil content of bearing is not influenced；And it is added with polymeric additive in machine oil, passes through polymeric additive
It realizes the wearability of impregnation oils and only there is certain viscosity.
Detailed description of the invention:
Fig. 1 is the schematic diagram that embodiment is used to show a kind of impregnator；
Fig. 2 is the structural schematic diagram that embodiment is used to show isolation board and microporous barrier.
Appended drawing reference:
1, casing；2, pumping adapter tube；3, vacuum valve；4, atmos-valve；5, vacuum tank；51, upper pumping board；52, lower pumping board；6,
Isolation board；7, microporous barrier；8, inlet plenum；9, admission line；10, steel cylinder；11, air outlet valve；12, rubber tubing；13, gas stream
Meter；14, stirring motor；15, stirring rod；16, torch is heated.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
Embodiment: Fig. 1 is a kind of simplified diagram of impregnator, and in conjunction with shown in the figure, outside is 1 part of casing, casing 1
Part is spacer structure, and heating torch 16 is disposed in spacer structure, and heating torch 16 can be to 1 part of casing after powering on
It is heated with 1 inner part of casing, the heating of 1 inner part of casing is then predominantly reached into certain temperature, it is perpendicular on 1 top of casing
It is directly plugged with thermometer downwards, staff observes the numerical value of the display on thermometer to understand the environment temperature of 1 inner part of casing
Degree.
Pumping adapter tube 2 is provided on 1 part of casing, pumping 2 inner end of adapter tube is connected into 1 inner part of casing, is evacuated outside adapter tube 2
End is set to outside casing 1, which is equipped with vacuum valve 3 for connecting vacuum pump on trachea road；Simultaneously in casing 1
Atmos-valve 4 is additionally provided on part, atmos-valve 4 can balance the air pressure inside and outside casing 1 after opening.
The receptacle member for containing impregnation oils is provided in casing 1, receptacle member is that the vacuum with lower pumping board 52 is held
Device 5 is provided with 6 band of isolation board 6 and microporous barrier 7 (may refer to shown in Fig. 2) isolation board at bottom in vacuum tank 5
There are several large-scale circular holes, while being horizontally fixed in vacuum tank 5, microporous barrier 7 gathers through-hole, and pore size is the ventilative of 1nm
Film can be avoided oil droplet and pass through, and the lower part of isolation board 6 and vacuum tank 5 forms inlet plenum 8, and inlet plenum 8 is circumscribed with
Admission line 9, admission line 9 is outside the setting to casing 1 of one end of vacuum tank 5, and the steel cylinder 10 of end connection liquid nitrogen,
It is connected to rubber tubing 12 between the air outlet valve 11 and admission line 9 of steel cylinder 10, gas flowmeter is installed on rubber tubing 12
13.The top that vacuum tank 5 is located at isolation board 6 be formed with for store with the oil storage region of oil mass, while in this oil storage region
Interior setting rabbling mechanism, rabbling mechanism include that the stirring motor 14 of 1 outer wall of casing is arranged in and stirring in oil storage region is arranged in
Bar 15 is mixed, stirring motor 14 drives stirring rod 15 to rotate by agitating shaft.
It is to be completed under the lower shape of vacuum degree in casing 1, specifically such as when carrying out dipping bearing using above-mentioned impregnator
Impregnated bearing: step 1, being first placed on upper pumping board 51 by lower operation, pours into impregnation oils into oil storage region, impregnation oils by
Lower pumping board 52, which covers, to be placed in vacuum tank 5, and end cap is locked；Step 2, start vacuum pump, heat simultaneously, make the ring in container
Border temperature is maintained at 75 DEG C, vacuum degree about 1330Pa, maintains 1h in this case；Then step S3 tilts upper pumping board 51, simultaneously
Lower pumping board 52 is pumped, so that impregnated bearing is placed in impregnation oils, the intake valve on liquid nitrogen steel cylinder 10 is during which opened, observes gas
Air-flow numerical quantity on flowmeter body 13 is then to start stirring motor 14 within the scope of 16ml/min-20ml/min, pass through stirring
Bar 15 is stirred operation to maceration extract, then keeps the temperature 1h at 75 DEG C；It is taken out after cooling.
The present embodiment is tested by following 4 groups of impregnation oils, is divided into test group 1-4, the component of test group 1-4 impregnation oils
As shown in Table 1.
The component of 1 test group 1-4 impregnation oils of table
By aforesaid operations steps, other 3 groups of tests are carried out, test group 5-7 is divided into:
Wherein test group 5 and test group 1 the difference is that, in the step S3, inactive stirring motor, so
Rabbling mechanism is not used, operation is stirred to impregnation oils；
Test group 6 and test group 1 the difference is that, in the step S3, inactive intake valve, so not to leaching
Stain oil carries out aeration；
Test group 7 and test group 1 the difference is that, in the step S3, start intake valve, but control air inlet
Valve, ventilation flow rate 6ml/min.
Properties of product test: referring to the periodical " powder metallurgy industry " that in October, 2009 publishes, in its volume 19 the 4th phase the
" with the experimental study of non-newtonian fluid dipping oiliness bearing " of 18-19 pages of record, the constant speed variable load experiment mentioned according to it and
It is analyzed, and Use Limitation is tested, and is extracted and is processed the bearing being prepared in the same time using test 1-7 mode, is testing
It is tested on machine, the variation numerical value of the friction coefficient PV value (i.e. load) of test bearing, as a result shown in table 2.
The friction co-efficient value of 2 test group 1-7 bearing of table
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art
Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this
All by the protection of Patent Law in the scope of the claims of invention.
Claims (5)
1. a kind of processing technology of self-lubricating bearing, includes the following steps, step S1, bearing and impregnation oils are placed: to steeper
It is inside put into bearing and impregnation oils to be impregnated, bearing to be impregnated and impregnation oils are respectively placed on different receptacle members, then
Lock end cap；Step S2, steeper are vacuumized and heated: starting vacuum pump will carry out vacuumize process in steeper；Together
When to steeper carry out heat treatment；Blowing dipping: bearing to be impregnated under vacuum conditions, is put into Sheng by step S3
It fills and carries out heat preservation dipping 1h in the receptacle member of impregnation oils, taken out after cooling, which is characterized in that in the step S3, containing
The bottom of the receptacle member of impregnation oils blasts gas to remove the bubble at bearing surface hole to be impregnated, in the impregnation oils of splendid attire
Receptacle member in be equipped with rabbling mechanism, Yu Suoshu step S3 carry out when, impregnation oils are stirred by rabbling mechanism, are being contained
The receptacle member bottom of dress impregnation oils is provided with isolation board (6) and microporous barrier (7), and microporous barrier (7) is fitted on isolation board (6),
Inlet plenum (8) are formed on the bottom of isolation board (6) and receptacle member, and reserve is formed at the top of isolation board (6) and receptacle member
Domain, in step s3, oil storage are placed with impregnation oils in region, blast inert gas into inlet plenum (8), inert gas passes through
Isolation board (6) and microporous barrier (7) enter in impregnation oils.
2. a kind of processing technology of self-lubricating bearing according to claim 1, which is characterized in that the air-flow of the inert gas
Amount is 16 ml/min -20ml/min.
3. a kind of processing technology of self-lubricating bearing according to claim 2, which is characterized in that the impregnation oils include machine oil
And polymeric additive.
4. the method for preparing a kind of processing technology of self-lubricating bearing as claimed in claim 3, which is characterized in that the macromolecule
Additive includes polyisobutene and catechol.
5. a kind of preparation method of the processing technology of self-lubricating bearing according to claim 1, which is characterized in that the inertia
Gas is nitrogen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710179710.9A CN106958591B (en) | 2017-04-22 | 2017-04-22 | A kind of processing technology of self-lubricating bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710179710.9A CN106958591B (en) | 2017-04-22 | 2017-04-22 | A kind of processing technology of self-lubricating bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106958591A CN106958591A (en) | 2017-07-18 |
| CN106958591B true CN106958591B (en) | 2019-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710179710.9A Active CN106958591B (en) | 2017-04-22 | 2017-04-22 | A kind of processing technology of self-lubricating bearing |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113898862A (en) * | 2021-11-05 | 2022-01-07 | 山东鼎益粉末冶金有限公司 | Vacuum oil injection device and method for oil-retaining bearing |
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| CN1074837A (en) * | 1992-01-31 | 1993-08-04 | 清华大学 | Film-type gas distributor |
| JPH09272902A (en) * | 1996-04-09 | 1997-10-21 | Hitachi Powdered Metals Co Ltd | Device for impregnating porous member |
| CN104162672A (en) * | 2014-08-22 | 2014-11-26 | 合肥波林新材料有限公司 | Single-box vacuum oil immersion device and oil immersion method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009262110A (en) * | 2008-04-30 | 2009-11-12 | Bridgestone Corp | Method for defoaming viscous material and mixing device provided with defoaming mechanism |
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2017
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|---|---|---|---|---|
| GB1317628A (en) * | 1969-12-10 | 1973-05-23 | Trico Products Corp | Powdered metal articles and method of manufacture |
| CN1074837A (en) * | 1992-01-31 | 1993-08-04 | 清华大学 | Film-type gas distributor |
| JPH09272902A (en) * | 1996-04-09 | 1997-10-21 | Hitachi Powdered Metals Co Ltd | Device for impregnating porous member |
| CN104162672A (en) * | 2014-08-22 | 2014-11-26 | 合肥波林新材料有限公司 | Single-box vacuum oil immersion device and oil immersion method thereof |
Non-Patent Citations (4)
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| 对叔丁基邻苯二酚的生产与应用;杜非 等;《辽宁化工》;20000930;第29卷(第5期);271-273 |
| 微孔膜气体分布器气液传质比表面积的研究;刘有智 等;《化工进展》;20091231;第28卷(第9期);1536-1539 |
| 用非牛顿流体浸渍含油轴承的实验研究;袁祖强 等;《粉末冶金工业》;20091031;第19卷(第5期);18-20 |
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Denomination of invention: A Processing Technology of Self-lubricating Bearing Effective date of registration: 20230106 Granted publication date: 20190618 Pledgee: Zhejiang Hecheng Rural Commercial Bank Co.,Ltd. Pledgor: JIAXING HEXING ZIRUN BEARING DEVELOPMENT CO.,LTD. Registration number: Y2023330000044 |