CN106678347A - Multi-scale/cross-scale staggered embedded type self-lubricating tooth surface - Google Patents
Multi-scale/cross-scale staggered embedded type self-lubricating tooth surface Download PDFInfo
- Publication number
- CN106678347A CN106678347A CN201710086514.7A CN201710086514A CN106678347A CN 106678347 A CN106678347 A CN 106678347A CN 201710086514 A CN201710086514 A CN 201710086514A CN 106678347 A CN106678347 A CN 106678347A
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- China
- Prior art keywords
- tooth
- flank
- lubricating
- self
- scale
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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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/041—Coatings or solid lubricants, e.g. antiseize layers or pastes
-
- 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
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/08—Profiling
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gears, Cams (AREA)
Abstract
The invention relates to a multi-scale/cross-scale staggered embedded type self-lubricating tooth surface. The tooth surface comprises a micro-scale structure and a macro-scale structure; on the macro-scale structure of the tooth surface, at least two latticed grooves are machined to be used for being filled with solid self-lubricating materials, the density is determined according to the size of the tooth surface, the projection area of the latticed grooves on the tooth surface accounts for 30%-40% of the total area of the tooth surface, the depth of the latticed grooves is approximately one tenth of the tooth thickness, and the latticed grooves are uniformly arranged; and on the micro-scale structure of the tooth surface, miniature pits are formed in staggered meshes, and the bearing capacity and the tribological property of the surface can be improved by utilizing the surface microtexture technology. Compared with current common gears, the tooth surface has the advantages of having the self-lubricating property and being capable of being applied to extreme conditions without oil or lacking in oil by comprehensively utilizing the multi-scale/cross-scale structural design and the material property characteristics.
Description
Technical field
The present invention relates to mechanical transmission fields, more particularly to it is a kind of it is multiple dimensioned/across the staggered embedded self-lubricating flank of tooth of yardstick.
Background technology
Gear drive is a kind of type of belt drive most widely used in machine driving.Its gear ratio is more accurate, efficiency high, knot
Structure is compact, reliable operation, life-span length.Gear is driven by the intermeshing of the gear teeth, but in transmission process, tooth
Wheel be unable to do without lubrication, at present in open type and semi-open type gear drive, or in the relatively low closed-type gear transmission of speed, generally with artificial
Make periodically oily, be with lubricator lubricating oil or grease；In closed-type gear transmission, its lubricating method has immersion oil
Lubrication, oil jet lubrication, drip lubrication and splash lubrication etc..
The gear lubrication mode of the outside oil transportation for adopting at present, under oil-free or weary oil environment, when can cause gear drive
Lack of lubrication, for gear causes very big damage, reduce the service life of gear, even result in failure of gear transmission.Together
When one of the problem that must take into when used in outer space environment of the machinery such as gear train be to provide effectively lubrication,
And fluid lubricant can quickly volatilize in a vacuum and cause Common fluids to lubricate by radiation-induced organic principle degraded
Agent can not be used in the environment without air.
The method of nonfluid lubrication includes using fixes film lubrication agent by made by self-lubricating material such as nylon or polyester
It is bonded on the contact surface of metal parts or part.But such method has its serious limitation, and solid film lubricant can
Effectively to use in short-term, but but there is limited wear-out life and ultimately result in gear matrix and still can come out and cause
Gear drive lubrication circumstances are not good.
At present Self-lubricating gear is concentrated mainly on gear structure design and coating type tooth surface design.Chen Maojin, Liu rich and powerful people etc.
Devise the Self-lubricating gear with oil leab and shoe cream room；Keith E Demorest devise a kind of that gear is whole along the flank of tooth
Body is cut open, then the Self-lubricating gear of self-lubricating material is embedded in two panels gear part split；The big one kind that devises of State of Zhao is in tooth
Uniform application gear lubricant on wheel face, covers again the Self-lubricating gear of layer of polyethylene film on gear oil, in gear fortune
When turning, temperature gradually rises, and polyethylene film slowly melts the gear oil in making to be wrapped in and oozes out, and plays a part of oilgear；
Coefficient of friction is also reduced using the gear surface intensive treatment of PVD deposition technology, reduces skin-friction force.In above invention
The Self-lubricating gear based on structure design be unable to reach self-lubricating purpose in the case of oil-free or weary oil, and in high-speed gear fortune
When turning, throw away can lubricating oil so as to not reach the purpose of lubrication；And the flank of tooth is cut open the self-lubricating for inserting self-lubricating material
The strength of gear teeth of gear is still still to be tested；Easily sent out in use using the Self-lubricating gear coating of plated film or coating technology
Life comes off, not only can not play the advantage of coating, and the coating granule for coming off on the contrary can cause abrasive wear to gear, accelerates gear
Wear out failure.The present invention on the basis of gear drive requirement is met, can reach the purpose of gear self-lubricating so that gear energy
Run well under the limiting condition of oil-free or weary oil.
The content of the invention
For above-mentioned the deficiencies in the prior art, the present invention designs one kind many based on structure design and material property feature
The staggered embedded flank of tooth Self-lubricating gear of yardstick, the gear lubrication under some specific operations is solved the problems, such as with this.
The present invention is adopted the following technical scheme that to solve technical problem：
The present invention it is a kind of it is multiple dimensioned/be across staggered embedded its feature of the self-lubricating flank of tooth of yardstick：The self-lubricating tooth
Face includes two kinds of structures of macro-scale and micro-scale；In the macro-scale, on the self-lubricating flank of tooth grid is machined with
Shape groove, in being evenly arranged, and is inlaid with solid self lubricant material, such as MoS in the latticed groove2Or Metal Substrate is from profit
Sliding material etc.；On the micro-scale, in addition to groove, flank of tooth white space is etched with miniature pit to the self-lubricating flank of tooth.
The present invention it is a kind of it is multiple dimensioned/lie also in across staggered embedded its feature of the self-lubricating flank of tooth of yardstick：It is described latticed
The number of groove with flank of tooth size variation and in being evenly arranged, the 1/20 of depth substantially transverse tooth thickness, width is about the 1/ of fully teeth height
12~1/6, projected area accounts for the 30%~40% of the flank of tooth gross area on the flank of tooth；Solid is inlaid with the latticed groove from profit
Material is slided, and makes it inlay depth and be not less than the latticed gash depth；
The present invention it is a kind of it is multiple dimensioned/also reside in across staggered embedded its feature of the self-lubricating flank of tooth of yardstick：It is described miniature recessed
Hole, on the flank of tooth between the latticed groove, number is with flank of tooth size variation, in unit area every square centimeter
Not less than 10, depth is 10~20 μm, and a diameter of 100~200 μm, spacing is not more than 200 μm.
Compared with the prior art, the present invention has the beneficial effect that：
The present invention is embedded in self-lubricating material in the latticed groove on gear teeth face in the way of inlaying, and make use of from profit
The excellent lubrication property of sliding material, improves the greasy property of gear, and changing conventional gears must adopt making for oil lubrication
With condition, the use range of gear is expanded so that gear adapts to some such as oil-frees, the severe lubrication operating mode of weary oil.Together
When etch miniature pit in gear teeth face, flank of tooth organizational structure can be strengthened so that the mechanical property such as fatigue resistance of the flank of tooth
Can be improved；Contact when gear can also be caused to engage between the flank of tooth is reduced, and reduces gear and sending out for the failure modes such as spot corrosion occurs
Raw probability；Improve surface bearing capacity using surface micro texture technology and improve Tribological characteristic.Therefore, it is this to interlock
Embedded flank of tooth Self-lubricating gear has good self-lubricating property and dynamic performance, is the one kind for solving some limiting conditions
Effective ways.
Description of the drawings
Fig. 1 is the schematic diagram of the present invention；
Fig. 2 is miniature pit A partial enlarged drawings；
Fig. 3 is the flank of tooth schematic diagram of the present invention；
Fig. 4 is macroscopical flank of tooth B partial enlarged drawings；
Fig. 5 is the latticed groove flat layout drawing of the present invention；
Fig. 6 is the latticed groove structure dimensional drawing of the self-lubricating flank of tooth of the present invention；
In figure：Miniature pit 1, self-lubricating material 2, metal material 3, latticed groove 4.
Specific embodiment
Referring to Fig. 1, Fig. 3 and Fig. 6, the multiple dimensioned staggered embedded flank of tooth Self-lubricating gear mainly by shock resistance compared with
Good metal material 3 is made, this gear selected, the selection 38CrMoAlA of metal material 3, modifier treatment, and hardness is 230HB,
7 class precisions；Simultaneously latticed groove 4 is processed on the flank of tooth with electrochemistry or laser processing.Recycle sintering or heat
Process of smelting pointing in the latticed groove 4 enters self-lubricating material 2, and inserts the grid after the self-lubricating material 2
Shape groove 4 is on same surface with the flank of tooth, and the self-lubricating material 2 selects metal (base) self-lubricating material.
Referring to Fig. 1, Fig. 4 and Fig. 6, the latticed groove 4, in being evenly arranged, when gear is engaged, is filled on the flank of tooth
The described latticed groove 4 of the self-lubricating material 2 can keep always contact condition with the flank of tooth of engaging tooth, so as to reach from
The purpose of lubrication.Fig. 4 is the partial enlarged drawing of macroscopical flank of tooth B, and specifically, the latticed channel layout is in the every of gear tooth
On one macroscopical flank of tooth, and with continuity.In Fig. 6, S is the facewidth, and S1 is the latticed gash depth, and W is the grid
Shape groove width.
It is the site plan of the latticed groove 4 referring to Fig. 5, S3 is spacing of the X to groove, and S2 is Y-direction groove
Spacing, α, β are respectively X to the angle of groove, Y-direction groove and trunnion axis, can use between 0~90 degree according to the flank of tooth during concrete application
It is arbitrarily angled,
Referring to Fig. 1 and Fig. 2, with laser etching techniques, minute abrasive injection etc. in the multiple dimensioned staggered embedded tooth
Miniature pit 1 is produced on the flank of tooth in addition to latticed groove 4 of face Self-lubricating gear, is improved using surface micro texture technology
Surface bearing capacity and improve Tribological characteristic.In the normal operation of gear, the tiny iron filings of generation are with gear
Rotation fall in the miniature pit 1, the purpose that the miniature pit 1 stores iron filings is reached with this；Simultaneously as miniature
The presence of pit 1 reduces the contact area of two mesh tooth faces so that the probability that the flank of tooth occurs the failure modes such as spot corrosion reduces,
Extend the life-span of gear.
Claims (3)
1. it is a kind of it is multiple dimensioned/across the staggered embedded self-lubricating flank of tooth of yardstick, it is characterised in that：The self-lubricating flank of tooth includes grand
See two kinds of structures of yardstick and micro-scale；In the macro-scale, latticed groove is machined with the self-lubricating flank of tooth, is in
It is evenly arranged, and solid self lubricant material is inlaid with the latticed groove；On the micro-scale, the self-lubricating
In addition to groove, flank of tooth white space is etched with miniature pit to the flank of tooth.
2. it is according to claim 1 it is a kind of it is multiple dimensioned/across the staggered embedded self-lubricating flank of tooth of yardstick, it is characterised in that：
The number of the latticed groove with flank of tooth size variation and in being evenly arranged, the 1/20 of depth substantially transverse tooth thickness, width is about
The 1/12~1/6 of fully teeth height, projected area accounts for the 30%~40% of the flank of tooth gross area on the flank of tooth；Inlay in the latticed groove
There is solid self lubricant material, and make it inlay depth and be not less than the latticed gash depth.
3. it is according to claim 1 it is a kind of it is multiple dimensioned/across the staggered embedded self-lubricating flank of tooth of yardstick, it is characterised in that：
The miniature pit, on the flank of tooth between the latticed groove, number is with flank of tooth size variation, every square centimeter
It is not less than 10 in unit area, depth is 10~20 μm, and a diameter of 100~200 μm, spacing is not more than 200 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710086514.7A CN106678347A (en) | 2017-02-17 | 2017-02-17 | Multi-scale/cross-scale staggered embedded type self-lubricating tooth surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710086514.7A CN106678347A (en) | 2017-02-17 | 2017-02-17 | Multi-scale/cross-scale staggered embedded type self-lubricating tooth surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106678347A true CN106678347A (en) | 2017-05-17 |
Family
ID=58861775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710086514.7A Pending CN106678347A (en) | 2017-02-17 | 2017-02-17 | Multi-scale/cross-scale staggered embedded type self-lubricating tooth surface |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108240398A (en) * | 2018-03-21 | 2018-07-03 | 济南大学 | A kind of compound Surface Texture friction is secondary |
| CN108253114A (en) * | 2017-12-21 | 2018-07-06 | 安徽工程大学 | A kind of Self-lubricating gear with micro- texture |
| CN108406016A (en) * | 2018-02-12 | 2018-08-17 | 合肥工业大学 | A kind of processing method across the staggered embedded Self-lubricating gear surface of scale |
| CN110131385A (en) * | 2019-05-28 | 2019-08-16 | 深圳市力辉电机有限公司 | A kind of gear and gear structure from oil storage lubrication of tooth surface |
| CN112628378A (en) * | 2020-11-26 | 2021-04-09 | 东南大学 | Micro-texture self-adaptive lubricating gear and preparation method thereof |
| CN114352700A (en) * | 2021-12-29 | 2022-04-15 | 江苏大学 | Heavy-duty gear capable of improving bearing capacity of lubricating oil film |
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| JP2005320604A (en) * | 2004-05-11 | 2005-11-17 | Fuji Heavy Ind Ltd | Treatment method for metal surface |
| CN1793700A (en) * | 2005-12-28 | 2006-06-28 | 吉林大学 | Bionic non smooth abrasion-proof gear wheel |
| CN101318262A (en) * | 2008-06-25 | 2008-12-10 | 江苏大学 | Laser micro-modelling method for cam surface profile |
| JP2011052782A (en) * | 2009-09-03 | 2011-03-17 | Shin Kobe Electric Mach Co Ltd | Resin gear |
| CN202301460U (en) * | 2011-10-12 | 2012-07-04 | 严绍康 | Self-lubricating shaft sleeve of isolator driving gear |
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| CN202768639U (en) * | 2012-09-12 | 2013-03-06 | 浙江双飞无油轴承股份有限公司 | Self-lubricating steel sliding block with high hardness surface |
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| CN103244644A (en) * | 2013-05-09 | 2013-08-14 | 承群威 | Gear with self-lubricating function |
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2017
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Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005320604A (en) * | 2004-05-11 | 2005-11-17 | Fuji Heavy Ind Ltd | Treatment method for metal surface |
| CN1793700A (en) * | 2005-12-28 | 2006-06-28 | 吉林大学 | Bionic non smooth abrasion-proof gear wheel |
| CN101318262A (en) * | 2008-06-25 | 2008-12-10 | 江苏大学 | Laser micro-modelling method for cam surface profile |
| JP2011052782A (en) * | 2009-09-03 | 2011-03-17 | Shin Kobe Electric Mach Co Ltd | Resin gear |
| CN202301460U (en) * | 2011-10-12 | 2012-07-04 | 严绍康 | Self-lubricating shaft sleeve of isolator driving gear |
| CN102628544A (en) * | 2012-04-16 | 2012-08-08 | 江苏大学 | Micro-embedded self-lubricating texture on surfaces of gear and cam and preparation method thereof |
| CN202768639U (en) * | 2012-09-12 | 2013-03-06 | 浙江双飞无油轴承股份有限公司 | Self-lubricating steel sliding block with high hardness surface |
| CN202883949U (en) * | 2012-10-31 | 2013-04-17 | 浙江大学 | Wheel gear with surface texture tooth surfaces |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108253114A (en) * | 2017-12-21 | 2018-07-06 | 安徽工程大学 | A kind of Self-lubricating gear with micro- texture |
| CN108253114B (en) * | 2017-12-21 | 2021-12-10 | 安徽工程大学 | Self-lubricating gear with micro-texture |
| CN108406016A (en) * | 2018-02-12 | 2018-08-17 | 合肥工业大学 | A kind of processing method across the staggered embedded Self-lubricating gear surface of scale |
| CN108240398A (en) * | 2018-03-21 | 2018-07-03 | 济南大学 | A kind of compound Surface Texture friction is secondary |
| CN110131385A (en) * | 2019-05-28 | 2019-08-16 | 深圳市力辉电机有限公司 | A kind of gear and gear structure from oil storage lubrication of tooth surface |
| CN112628378A (en) * | 2020-11-26 | 2021-04-09 | 东南大学 | Micro-texture self-adaptive lubricating gear and preparation method thereof |
| CN112628378B (en) * | 2020-11-26 | 2022-04-08 | 东南大学 | Micro-texture self-adaptive lubricating gear and preparation method thereof |
| CN114352700A (en) * | 2021-12-29 | 2022-04-15 | 江苏大学 | Heavy-duty gear capable of improving bearing capacity of lubricating oil film |
| CN114352700B (en) * | 2021-12-29 | 2024-04-09 | 江苏大学 | Heavy-duty gear capable of improving bearing capacity of lubricating oil film |
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Application publication date: 20170517 |
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