CN106321640A - Solid lubrication ball bearing and preparation method thereof - Google Patents
Solid lubrication ball bearing and preparation method thereof Download PDFInfo
- Publication number
- CN106321640A CN106321640A CN201610989289.3A CN201610989289A CN106321640A CN 106321640 A CN106321640 A CN 106321640A CN 201610989289 A CN201610989289 A CN 201610989289A CN 106321640 A CN106321640 A CN 106321640A
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- China
- Prior art keywords
- ball
- coating
- ball bearing
- nanometer
- graphene
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- 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.)
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Classifications
-
- 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
- F16C33/30—Parts of ball or roller bearings
- F16C33/32—Balls
-
- 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
- F16C33/30—Parts of ball or roller bearings
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6696—Special parts or details in view of lubrication with solids as lubricant, e.g. dry coatings, powder
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lubricants (AREA)
Abstract
The invention discloses a solid lubrication ball bearing. A ball surface is provided with a plasma spray nano h-BN (hexagonal boron nitride) and graphene coating having a thickness of 20-30 mu m. The composite coating disclosed by the invention simultaneously reduces the friction factor and wear rate, and the friction factor is low; and meanwhile, the wear resistance of the composite coating is better than that of a Cr coating. In the presence of various loads, the wear rate is reduced by 50% or above in comparison with a matrix.
Description
Technical field
The present invention relates to technical field of automobile, particularly relate to ball bearing and the preparation side thereof of a kind of solid lubrication
Method.
Background technology
Ball bearing is the one of rolling bearing, and spherical alloy steel ball is arranged on the centre of interior steel ring and outer rim, with
Roll mode reduces the frictional force in power transmission process and improves mechanokinetic transmission efficiency.Ball bearing can not bear
Bigger heavy load, in light indusqtry machinery more typically.Ball bearing is also ball bearing.
And the hardness of keeper is low compared to ball and ring, its material has metal (such as: medium carbon steel, aluminium alloy) or nonmetal
(such as: ferrum not dragon, PTEF, macromolecular material).Rolling bearing (rolling bearing) is than the bearing of journals (journal
Bearing) pivoting friction resistance is little, under thus like rotating speed, due to fricative temperature can ratio relatively low.
Ball bearing is usually used in the mechanically operated equipment of low load.Because the loaded area of ball bearing is little,
Serious mechanical injuries easily occur, so often taking needle roller in the machine driving of heavy load in the case of running up
Formula bearing, to strengthen loading end, improves mechanical transfer efficiency, reduces mechanical injuries simultaneously.
Ball bearing changes the friction mode of bearing, uses rolling friction, and this mode is more efficiently reduces axle
Friction phenomenon between bearing surface, but described friction mode causes needing to use grease, lubricating oil to carry out reducing friction.Due to profit
Consistent lubricant, lubricating oil can consume, it is therefore desirable to be periodically added, and thus cause the defects such as machinery dismounting.
Summary of the invention
It is an object of the invention to ball bearing proposing a kind of solid lubrication and preparation method thereof, it is possible to make ball axle
Hold friction to reduce.
For reaching this purpose, the present invention by the following technical solutions:
The ball bearing of a kind of solid lubrication, described ball surface has plasma spraying nanometer h-of 20-30 μ m thick
BN and Graphene coating.
Coating of the present invention is that nanometer h-BN mixes with Graphene coating.Preferably, described weight ratio is (3-
5): 1, preferably 4:1.
Described mixing is to use planetary ball mill and centrifugal spraying granulator coating to be dusted.Its technique includes:
(1) by nanometer h-BN granule and Graphene ball milling at least 5 minutes on planetary ball mill；
(2), when ball milling stops first 5 minutes, add organic binder ball milling, obtain suspension；
(3) suspension is carried out mist projection granulating, obtain nanometer h-BN and Graphene agglomerated particle.
Described nanometer h-BN and Graphene agglomerated particle are sprayed on ball by the present invention by plasma spraying.Described etc.
Plasma spray, its electric current is 400-700A, and voltage is 30-70V, main gas argon flow amount 50-140L/min, powder feed rate 25-
60g/min.Preferably, electric current is 550A, voltage 30V, argon flow amount 50L/min.
Nanometer h-BN granule of the present invention, is existing product, and those skilled in the art can be bought by market
Arrive, it is also possible to prepare according to the method for prior art.The present invention no longer limits with regard to it.
The composite coating of the present invention makes coefficient of friction and wear rate reduce simultaneously, has relatively low coefficient of friction, simultaneously
There is more excellent wearability.Under each load, wear rate reduces by more than 50% than matrix.
Detailed description of the invention
Technical scheme is further illustrated below by detailed description of the invention.
Embodiment 1
Planetary ball mill and centrifugal spraying granulator is used to be dusted by coating material.Its technique includes:
(1) by nanometer h-BN granule and Graphene ball milling at least 5 minutes on planetary ball mill；
(2), when ball milling stops first 5 minutes, add organic binder ball milling, obtain suspension；
(3) suspension is carried out mist projection granulating, obtain nanometer h-BN and Graphene agglomerated particle.
By plasma spraying, described nanometer h-BN and Graphene agglomerated particle are sprayed on ball surface.Described grade from
Son spraying, its electric current is 550A, voltage 30V, argon flow amount 50L/min.
Coating on described ball, it plays self-lubricating solid effect.
Comparative example 1
Omitting the Graphene of embodiment 1, remaining is same as in Example 1.
Comparative example 2
Nanometer h-BN is replaced with micron graphite, and remaining is same as in Example 1.
The coating of comparative example 1-2, can play lubrication equally, but described lubricant effect is slightly worse, simply compared to not containing
The ball of coating, improves.Lubricant effect comparative example 1-2 to be substantially better than of embodiment 1, and wear time is long, plays profit
The sliding time is the most significantly longer.That is, 2 kinds of material mixing of the present invention, play synergism.
Claims (5)
1. a ball bearing for solid lubrication, described ball surface has plasma spraying nanometer h-BN of 20-30 μ m thick
With Graphene coating.
2. ball bearing as claimed in claim 1, it is characterised in that described coating is that nanometer h-BN mixes with Graphene coating
Forming, its weight ratio is (3-5): 1, preferably 4:1.
3. ball bearing as claimed in claim 1 or 2, it is characterised in that described mixing is to use planetary ball mill and be centrifuged
Coating is dusted by sponging granulator, and its technique includes:
(1) by nanometer h-BN granule and Graphene ball milling at least 5 minutes on planetary ball mill；
(2), when ball milling stops first 5 minutes, add organic binder ball milling, obtain suspension；
(3) suspension is carried out mist projection granulating, obtain nanometer h-BN and Graphene agglomerated particle.
4. the ball bearing as described in one of claim 1-3, it is characterised in that by plasma spraying by described nanometer h-BN
Spray on ball, obtain described coating with Graphene agglomerated particle.
5. the ball bearing as described in one of claim 1-4, it is characterised in that described plasma spraying, its electric current is 400-
700A, voltage is 30-70V, main gas argon flow amount 50-140L/min, powder feed rate 25-60g/min；Preferably, electric current is
550A, voltage 30V, argon flow amount 50L/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610989289.3A CN106321640A (en) | 2016-11-10 | 2016-11-10 | Solid lubrication ball bearing and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610989289.3A CN106321640A (en) | 2016-11-10 | 2016-11-10 | Solid lubrication ball bearing and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106321640A true CN106321640A (en) | 2017-01-11 |
Family
ID=57816785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610989289.3A Pending CN106321640A (en) | 2016-11-10 | 2016-11-10 | Solid lubrication ball bearing and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106321640A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108330332A (en) * | 2018-01-26 | 2018-07-27 | 中南大学 | A kind of width temperature range self-lubricating nickel-based composite and preparation method thereof |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07243447A (en) * | 1994-03-07 | 1995-09-19 | Toshiba Corp | Sliding member, rolling bearing, rotary anode x-ray tube and manufacture of sliding member |
| US5516214A (en) * | 1993-12-27 | 1996-05-14 | Koyo Seiko Co., Ltd. | Rolling bearing |
| JP2005172056A (en) * | 2003-12-09 | 2005-06-30 | Ntn Corp | Non-magnetic rolling bearing |
| JP2006046432A (en) * | 2004-08-03 | 2006-02-16 | Koyo Seiko Co Ltd | Rolling sliding member and rolling device equipped therewith |
| CN101634338A (en) * | 2009-07-30 | 2010-01-27 | 哈尔滨工业大学 | Method for preparing self-lubricating film on surface of roll ball |
| CN101724803A (en) * | 2008-10-16 | 2010-06-09 | 北京有色金属研究总院 | Preparation method of composite powder for high-temperature wear-resisting self-lubricating coating |
| CN104402053A (en) * | 2014-11-04 | 2015-03-11 | 中国科学院大学 | Preparation method for graphene-like two-dimension nanosheet |
| CN104862525A (en) * | 2015-06-09 | 2015-08-26 | 陈鹏 | Ball bearing |
| CN104928611A (en) * | 2015-07-13 | 2015-09-23 | 中国人民解放军第二炮兵工程大学 | Wide temperature region viscosity corrosion resisting solid self-lubricating coating and preparation method thereof |
| EP3006605A1 (en) * | 2014-10-08 | 2016-04-13 | The Swatch Group Research and Development Ltd. | Self-lubricating composite coating |
| CN106086748A (en) * | 2016-07-21 | 2016-11-09 | 陈小华 | A kind of heavy-duty gear nano surface coating and preparation method thereof |
| CN106244974A (en) * | 2016-08-23 | 2016-12-21 | 华南理工大学 | A kind of preparation method of the wear-resistant thermal barrier coating of self-lubricating solid |
-
2016
- 2016-11-10 CN CN201610989289.3A patent/CN106321640A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5516214A (en) * | 1993-12-27 | 1996-05-14 | Koyo Seiko Co., Ltd. | Rolling bearing |
| JPH07243447A (en) * | 1994-03-07 | 1995-09-19 | Toshiba Corp | Sliding member, rolling bearing, rotary anode x-ray tube and manufacture of sliding member |
| JP2005172056A (en) * | 2003-12-09 | 2005-06-30 | Ntn Corp | Non-magnetic rolling bearing |
| JP2006046432A (en) * | 2004-08-03 | 2006-02-16 | Koyo Seiko Co Ltd | Rolling sliding member and rolling device equipped therewith |
| CN101724803A (en) * | 2008-10-16 | 2010-06-09 | 北京有色金属研究总院 | Preparation method of composite powder for high-temperature wear-resisting self-lubricating coating |
| CN101634338A (en) * | 2009-07-30 | 2010-01-27 | 哈尔滨工业大学 | Method for preparing self-lubricating film on surface of roll ball |
| EP3006605A1 (en) * | 2014-10-08 | 2016-04-13 | The Swatch Group Research and Development Ltd. | Self-lubricating composite coating |
| CN104402053A (en) * | 2014-11-04 | 2015-03-11 | 中国科学院大学 | Preparation method for graphene-like two-dimension nanosheet |
| CN104862525A (en) * | 2015-06-09 | 2015-08-26 | 陈鹏 | Ball bearing |
| CN104928611A (en) * | 2015-07-13 | 2015-09-23 | 中国人民解放军第二炮兵工程大学 | Wide temperature region viscosity corrosion resisting solid self-lubricating coating and preparation method thereof |
| CN106086748A (en) * | 2016-07-21 | 2016-11-09 | 陈小华 | A kind of heavy-duty gear nano surface coating and preparation method thereof |
| CN106244974A (en) * | 2016-08-23 | 2016-12-21 | 华南理工大学 | A kind of preparation method of the wear-resistant thermal barrier coating of self-lubricating solid |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108330332A (en) * | 2018-01-26 | 2018-07-27 | 中南大学 | A kind of width temperature range self-lubricating nickel-based composite and preparation method thereof |
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Application publication date: 20170111 |