CN108374878A - A kind of more Material cladding Self-lubricating gears - Google Patents
A kind of more Material cladding Self-lubricating gears Download PDFInfo
- Publication number
- CN108374878A CN108374878A CN201810145366.6A CN201810145366A CN108374878A CN 108374878 A CN108374878 A CN 108374878A CN 201810145366 A CN201810145366 A CN 201810145366A CN 108374878 A CN108374878 A CN 108374878A
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- Prior art keywords
- lubricating
- self
- matrix
- gear
- transition matrix
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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
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/17—Toothed wheels
-
- 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
- F16H55/06—Use of materials; Use of treatments of toothed members or worms to affect their intrinsic material properties
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Gears, Cams (AREA)
Abstract
The invention discloses a kind of more Material cladding Self-lubricating gears, including gear matrix, transition matrix and self-lubricating coat in use, its middle gear matrix uses high intensity and high-toughness metal material, transition matrix uses high-alloy steel materials, self-lubricating coat in use uses Situation of Some Metal-matrix Solid Self-lubricating Material, and utilizes 3D printing technique, and it is rigid to accumulate a floor height alloy in gear matrix surface, solid lubricant is coated on outermost layer with advanced technologies such as laser melting coating or magnetron sputterings, realizes flank of tooth self-lubricating function.Compared to conventional gears, a kind of more Material cladding Self-lubricating gears of the present invention have better lubrication property, antifriction quality, wearability and impact resistance, excellent lubricating properties, contact bearing capacity are strong in transmission process, the application requirement of the extreme operating conditions such as oil-free, weary oil can be met, therefore suitable for the gear drive field under high-speed overload, high vacuum, wide temperature range operating mode.
Description
Technical field
The present invention relates to field of gears, are a kind of more Material cladding Self-lubricating gears
Background technology
Lubrication plays a decisive role to gear-driven normal operation and service life.Lubricant plays in gear drive
The various effects such as lubricate, cool down, ensure that gear normally operates under certain operating temperature, and extend making for gear
Use the service life.The lubricating system of gear is broadly divided into grease lubrication, oil lubrication and solid lubrication at present.Grease lubrication is
Lubricating grease is filled in casing, is only applicable to tangential velocity in 4.5m/s gear pairs below.Oil lubrication is using most
For extensive gear lubrication form, it is divided into as no pressure lubricating and force feed.Solid lubrication is to carry graphite, molybdenum disulfide etc.
The coating of solid material fine powder, injection or the agitation of lubrication property are sprinkling upon gear engagement place, or by these materials and lubricating grease,
Lubricating oil mixing stirs evenly use.
Current gear lubrication mode has certain limitation.Grease lubrication is only applicable in the lower gear profit of rotating speed
It is sliding；Oil lubrication needs fuel tank, and fuel tank weight is big, once fuel tank is revealed, lubricating oil will lose, and lead to retarder
Damage, and pollute environment；For example, in space, it is in state of weightlessness, oil lubrication will be ineffective；Once helicopter
Retarder lubricating system breaks down, and transmission system will be in non lubricant oil working condition, and retarder is made to break in a short time
It is bad, cause catastrophic consequence.There are helicopter reducer in many countries the dry running ability requirement of 30~60min.Due to
Self-lubricating material high temperature resistant, wear-resisting, Self-lubricating gear can significantly increase the dry running ability of retarder.
Self-lubricating material is the low sheraing characteristic by material itself or its transfer membrane and has excellent wear-resistant and anti-attrition
Effect.Economic, ecology and it is technical due to, application of the self-lubricating material on gear is current development trend.
After this technology, gear will be not necessarily to grease lubrication, and the operating limit of traditional material is greatly breached in performance, for solution
Certainly it is typical special to be badly in need of ultralow temperature, ultrahigh vacuum, intense radiation, high speed, high load, special media for solving etc. for aerospace machinery
Fretting wear problem under working condition provides strong technical support, has been established for raising military project mechanical stability important
Basis.
Currently, ordinary gear is generally made of homogenous material, then is heat-treated, to improve mechanical performance.Gear
Mechanical performance generally requires higher toughness, higher-strength, higher abrasion resistance etc..However, using tooth made of a kind of material
Wheel will meet above-mentioned performance requirement, have higher difficulty.In addition, gear reduces abrasion in transmission process, to add each
Kind oil lubrication fat causes certain environmental pollution, and friction reducing effect is not especially desirable, and use occasion also has certain
Limitation.
Utility model invents " a kind of novel self-lubricating gear " (201720219452.8) and uses three-ply sandwich structure, this hair
Bright (claims of the present invention for this patent similarity without reference to) similar to its in structure, but in invention
The material and processing method of two layers and third layer are different from the invention, as the second layer and third layer use the rigid material of high alloy and
Situation of Some Metal-matrix Solid Self-lubricating Material, and 3D printing has been used, plasma spray, the advanced machining technologies such as coating produced by laser cladding.Therefore, this hair
The material layout of bright each layer is more reasonable, can obtain the gear of more preferable mechanical property；Outermost metal-based self-lubricating material simultaneously
Wearability is more preferable, service life higher.
Invention content
In view of the above shortcomings of the prior art, the present invention proposes a kind of more Material cladding Self-lubricating gears, and feature exists
In applying solid self-lubricating material, by coating self-lubricating coat in use on the flank of tooth, based in transmission process collision and friction etc.
Warm liter effect so that gear self-lubricating coat in use has self-lubricating property, meets the application requirement of the extreme operating conditions such as oil-free, weary oil；
It is designed simultaneously using sandwich type structure, is conducive to the characteristic for giving full play to each material, meet the design of gear " inner tough outer hard "
Criterion is suitable for the gear drive field under high-speed overload, high vacuum, wide temperature range operating mode.
The present invention is to solve technical problem to adopt the following technical scheme that：
A kind of the characteristics of more Material cladding Self-lubricating gears of the invention, is：Including gear matrix, transition matrix and Zi Run
Sliding coating；The transition matrix is located at the outside of the gear matrix, and thickness is the 1/10~1/5 of gear compound graduation circular diameter, institute
The outside that self-lubricating coat in use is located at the transition matrix is stated, thickness is at least 10 μm；The transition matrix uses high alloy steel
At；The self-lubricating coat in use uses Situation of Some Metal-matrix Solid Self-lubricating Material.
A kind of the characteristics of more Material cladding Self-lubricating gears of the invention, is：The transition matrix uses 3D printing technique,
The high-alloy steel of manganese, chromium, copper is sintered in the surface of the gear matrix, the surface roughness of the transition matrix after molding
For Ra6.3~Ra12.5, it is deposited in the surface of the gear matrix；The self-lubricating coat in use use including at least coating produced by laser cladding,
Plasma spray, magnetron sputtering a kind of processing technology the transition matrix surface coat one layer of metal-based self-lubricating material.
Compared with the prior art, the present invention has the beneficial effect that：
1. a kind of more Material cladding Self-lubricating gears of the present invention, using solid self lubricant material, by being coated on the flank of tooth
Metal-based self-lubricating coating so that gear self-lubricating coat in use generates lubricating action, realizes the self-lubricating function of gear, is conducive to pass
Dynamic device lightweight meets answering for the extreme operating conditions such as oil-free, weary oil the purpose of reaching reduction gear wear, extend gear life
With requiring, it is suitable for the gear drive field under high-speed overload, high vacuum, wide temperature range operating mode.
2. a kind of more Material cladding Self-lubricating gears of the present invention will not cause to answer on the basis of not destroying gear structure
The problems such as power is concentrated, gear engagement contact area is reduced and the strength of gear teeth reduces.Compared to conventional gears, there is better intensity
Bearing capacity, because of the material high using toughness at gear matrix, intensity is high, using hardness height, intensity at transition matrix
High material can give full play to the physical mechanical property of every layer material in self-lubricating coat in use using the good material of greasy property,
The service life for improving gear, can realize structure optimization in the case where meeting strength condition, advantageously reduce material, mitigate gear matter
Amount improves transmission performance.
Description of the drawings
Fig. 1 structure of the invention sectional views；
Fig. 2 gear teeth partial enlarged views of the present invention；
In figure：1 gear matrix, 2 transition matrixes, 3 self-lubricating coat in use.
Specific implementation mode
In conjunction with shown in Fig. 1 and Fig. 2, more Material cladding Self-lubricating gears are by gear matrix 1, transition matrix 2, self-lubricating
Coating 3 forms.Quenched and tempered steel, such as 45 steel may be used in gear matrix 1, are obtained by conventional hobbing method for processing.45 modulation
Steel has good comprehensive performance, has good plasticity and toughness again while keeping higher-strength.Then, it is beaten with 3D
Print, then high-alloy steel of one layer of the cladding containing manganese, chromium, as transition matrix 2 on gear matrix 1.Transition matrix 2 has good
It is wear-resistant, high temperature resistant, impact resistance.2 surface of transition matrix obtained after 3D printing has higher roughness, then described
Using coating produced by laser cladding or plasma spray or magnetron sputtering technique on transition matrix 2, last layer self-lubricating coat in use 3, self-lubricating are applied
Coating can be TiAlN/VN coatings or the oxide V of V2O5Coating, CrMoN composite coatings.By relevant processing, it is made
Finished product.Preferably, the thickness of transition matrix 2 is the 1/10~1/5 of reference diameter, in the present embodiment, transition matrix 2
Thickness is 10mm, and self-lubricating coat in use 3 is at least 10 μm, and in the present embodiment, the thickness of self-lubricating coat in use 3 is 0.5mm.
Claims (2)
1. a kind of more Material cladding Self-lubricating gears, including gear matrix (1), transition matrix (2) and self-lubricating coat in use (3)；Institute
State the outside that transition matrix (2) is located at the gear matrix (1), thickness is the 1/10~1/5 of gear compound graduation circular diameter, it is described from
Lubricant coating (3) is located at the outside of the transition matrix (2), and thickness is at least 10 μm；The transition matrix (2) uses high alloy
Steel is made；The self-lubricating coat in use (3) uses Situation of Some Metal-matrix Solid Self-lubricating Material.
2. a kind of more Material cladding Self-lubricating gears according to claim 1, which is characterized in that the transition matrix (2)
Using 3D printing technique, the high-alloy steel of manganese, chromium, copper is sintered in the surface of the gear matrix (1), the mistake after molding
The surface roughness for crossing matrix (2) is Ra6.3~Ra12.5, is deposited in the surface of the gear matrix (1)；The self-lubricating applies
Layer (3) is using a kind of processing technology included at least in coating produced by laser cladding, plasma spray, magnetron sputtering in the transition matrix (2)
Surface coats one layer of metal-based self-lubricating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810145366.6A CN108374878A (en) | 2018-02-12 | 2018-02-12 | A kind of more Material cladding Self-lubricating gears |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810145366.6A CN108374878A (en) | 2018-02-12 | 2018-02-12 | A kind of more Material cladding Self-lubricating gears |
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| CN108374878A true CN108374878A (en) | 2018-08-07 |
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| CN201810145366.6A Pending CN108374878A (en) | 2018-02-12 | 2018-02-12 | A kind of more Material cladding Self-lubricating gears |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109083955A (en) * | 2018-08-28 | 2018-12-25 | 四川中物红宇科技有限公司 | Alloy material and flat spring bracket in a kind of slot for flat spring bracket |
| CN112483626A (en) * | 2020-12-02 | 2021-03-12 | 东南大学 | Self-lubricating gear based on additive manufacturing and preparation method thereof |
| CN112628378A (en) * | 2020-11-26 | 2021-04-09 | 东南大学 | Micro-texture self-adaptive lubricating gear and preparation method thereof |
| CN112746271A (en) * | 2020-12-15 | 2021-05-04 | 东南大学 | Laser cladding wide-temperature-range self-lubricating gear and preparation method thereof |
| US20210205916A1 (en) * | 2020-01-08 | 2021-07-08 | The Boeing Company | Additive friction stir deposition method for manufacturing an article |
| CN113819214A (en) * | 2021-09-14 | 2021-12-21 | 昆明理工大学 | High-performance tooth-shaped gradient component gear |
| CN113983142A (en) * | 2021-10-22 | 2022-01-28 | 内蒙古第一机械集团股份有限公司 | Low-friction efficient driving wheel gear ring and implementation method thereof |
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| CN200971958Y (en) * | 2006-05-18 | 2007-11-07 | 朱允胜 | Bimetal self-lubricating anti-friction pulley |
| CN201672030U (en) * | 2010-03-22 | 2010-12-15 | 郭文学 | Multi-layer composite improved nylon gear |
| CN104278226A (en) * | 2013-07-02 | 2015-01-14 | 中国科学院兰州化学物理研究所 | Preparation technology for wide-temperature-range self-lubricating coating |
| CN104746071A (en) * | 2015-04-17 | 2015-07-01 | 南京工程学院 | Metal-based self-lubricating composite coating and preparation method thereof |
| CN106763649A (en) * | 2017-02-17 | 2017-05-31 | 合肥工业大学 | A kind of cellular polygon Self-lubricating gear |
| CN206419452U (en) * | 2016-12-17 | 2017-08-18 | 武汉东湖学院 | Polymer composite pulley |
| CN206708336U (en) * | 2017-03-08 | 2017-12-05 | 江苏众通机械制造有限公司 | A kind of novel self-lubricating gear |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109083955A (en) * | 2018-08-28 | 2018-12-25 | 四川中物红宇科技有限公司 | Alloy material and flat spring bracket in a kind of slot for flat spring bracket |
| CN109083955B (en) * | 2018-08-28 | 2021-02-09 | 四川中物红宇科技有限公司 | In-groove alloy material for plate spring support and plate spring support |
| US20210205916A1 (en) * | 2020-01-08 | 2021-07-08 | The Boeing Company | Additive friction stir deposition method for manufacturing an article |
| US11845141B2 (en) * | 2020-01-08 | 2023-12-19 | The Boeing Company | Additive friction stir deposition method for manufacturing an article |
| 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 |
| CN112483626A (en) * | 2020-12-02 | 2021-03-12 | 东南大学 | Self-lubricating gear based on additive manufacturing and preparation method thereof |
| CN112746271A (en) * | 2020-12-15 | 2021-05-04 | 东南大学 | Laser cladding wide-temperature-range self-lubricating gear and preparation method thereof |
| CN113819214A (en) * | 2021-09-14 | 2021-12-21 | 昆明理工大学 | High-performance tooth-shaped gradient component gear |
| CN113983142A (en) * | 2021-10-22 | 2022-01-28 | 内蒙古第一机械集团股份有限公司 | Low-friction efficient driving wheel gear ring and implementation method thereof |
| CN113983142B (en) * | 2021-10-22 | 2023-11-17 | 内蒙古第一机械集团股份有限公司 | Low-friction efficient driving wheel gear ring and implementation method thereof |
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Application publication date: 20180807 |
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