CN101157878A - Special grease for speed reducer and method of production - Google Patents
Special grease for speed reducer and method of production Download PDFInfo
- Publication number
- CN101157878A CN101157878A CNA2007101313408A CN200710131340A CN101157878A CN 101157878 A CN101157878 A CN 101157878A CN A2007101313408 A CNA2007101313408 A CN A2007101313408A CN 200710131340 A CN200710131340 A CN 200710131340A CN 101157878 A CN101157878 A CN 101157878A
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- cycloalkyl
- special grease
- extreme pressure
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- down gear
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Abstract
The invention relates to a special grease for a deceleration machine and a production method thereof, in particular to a special grease for a deceleration machine. The major integrants comprises oil petroleum refined by naphthenic base, fatty acid, antioxidant, lithium hydroxide, extreme pressure anti-wear additive, polyisobutylene and ethylene propylene copolymer. 80 percent of oil petroleum refined by naphthenic base, fatty acid, ethylene propylene copolymer and lithium hydroxide are added into a high speed convection contactor to be carried out the heating up saponifocation reaction. After being refined, 20 percent of oil petroleum refined by naphthenic base is added into to go on with thickening, cooling, shearing, homogenizing. Furthermore polyisobutylene, antioxidant and extreme pressure anti-wear additive are added into the mixture to be stirred up, de-aerated, and filtered to be made into end product. The invention has fairly high carrying capacity and anti-friction property both of which can reduce the gear abrasion and prolong the service life; the invention also has favorable pumpability and good adhesion which can ensure the running gear is possessed of adequate oil membranes thickness and can lower the noise of running gears so as to prolong the service life; the invention is endowed with good low temperature performance that the machine can accomplish average service under low temperature.
Description
Technical field
The present invention relates to a kind of special grease and production method of step-down gear, specifically the special grease of step-down gear.
Background technology
In prior art, the existing Lubricating Grease for Speed Reducer in market is a kind of general semi-fluid extreme pressure lithium base lubricating grease, can substitute gear oil, satisfies the requirement that general step-down gear is lubricated, seal.But along with the development of step-down gear industry, medium-to-high grade step-down gear is very high to required lubricating grease quality requirements, and existing Lubricating Grease for Speed Reducer is reducing the equipment operation noise, satisfying equipment and do not reach requirement aspect long work-ing life.For lubricating of step-down gear internal wheel transmission, mainly use lubricating oil, lubricating oil has the following disadvantages:
1. because the operating ambient temperature height, oil viscosity descends, and easily environment had both been polluted in leakage, causes waste, gear not to reach effect lubricated, protection again, causes gear, bearing wear serious, scraps too early.
2. lubricating oil is short work-ing life, meet under the water condition at high temperature, and the very fast generation emulsification of oil, rotten, corrupt, this just needs constantly more renew oil; Use cost rises.
At present, lubricating of step-down gear internal wheel transmission mainly is to adopt quasi-hydrodynamic lubrication, requires product promptly to have the flowability of oil, need satisfy the requirement of gear spray lubrication, and the high warm nature of fat is arranged again, can play lubricated, sealing double effects.
Summary of the invention
The objective of the invention is to overcome above-mentioned weak point, thereby provide a kind of special grease and production method of step-down gear, it has high-adhesiveness, can guarantee that gear operation has enough oil film thicknesses, and can effectively reduce the gear operation noise, the work-ing life of gear can be improved greatly, and the lubricated requirement of medium-to-high grade step-down gear can be satisfied.
Main solution of the present invention is achieved in that
Its component ratio of the special grease of step-down gear of the present invention is the percentage ratio meter by weight:
Getting the cycloalkyl oil petroleum refined by naphthenic is: 50-80%, lipid acid are: 1-5%, oxidation inhibitor are: 0.5-1%, lithium hydroxide (100%) are: 0.1-0.5%, extreme pressure anti-wear additives are: 1-3%, polyisobutene are: 1-10% and ethylene-propylene copolymer are: 10-40%; With the exquisite Dormant oils total amount of cycloalkyl 80%, lipid acid, ethylene-propylene copolymer and lithium hydroxide add high speed convection contactor, intensification saponification reaction; Through refining, add 20% of the exquisite Dormant oils total amount of cycloalkyl and carry out multiviscosisty, cooling, shearing, homogenizing; Add polyisobutene, oxidation inhibitor and extreme pressure anti-wear additives again, stir, outgas, be filtered into finished product.
The production method of the special grease of step-down gear of the present invention adopts following processing step:
1, be lower than under 80 ℃ the condition, with the exquisite Dormant oils total amount of cycloalkyl 80%, lipid acid, ethylene-propylene copolymer and lithium hydroxide add the convection current contactor and mix, be warming up to 100-150 ℃ and carry out saponification reaction, saponification 1-2 hour; Be warming up to 210-220 ℃ again, be incubated 15-30 minute;
2, still in the middle of the mixture after will being incubated is transferred to adds 20% of the exquisite Dormant oils total amount of cycloalkyl and carries out multiviscosisty, cooling, and temperature is reduced to 140-160 ℃, disperses circulation shear;
3, after mixture was sheared, greenhouse cooling was to 100-130 ℃ of homogenizing; When greenhouse cooling during to 80-100 ℃, add polyisobutene, oxidation inhibitor and extreme pressure anti-wear additives, stir;
4, the degassing is filtered into finished product.
Cycloalkyl oil petroleum refined by naphthenic of the present invention, its kinematic viscosity of 100 ℃ is 5-20mm
2/ s.
Lipid acid of the present invention is ten dihydroxystearic acids or stearic acid or its mixture
Oxidation inhibitor of the present invention is one or more mixtures in dialkyl diphenylamine, ditertbutylparacresol or the zinc dialkyl dithiophosphate.
Extreme pressure anti-wear additives of the present invention is one or more mixtures in sulfide isobutene, zinc dialkyl dithiocarbamate or the tritolyl phosphate.
Finger polyisobutene of the present invention, molecular weight are 1000-5000.
Compared with the prior art the present invention has the following advantages:
The present invention according to step-down gear fat require that good low temperature use properties is arranged, good adhesion property and the characteristics requirement of extreme pressure and antiwear behavior, this fat is base oil with the oil petroleum refined by naphthenic, with the fatty acid lithium is viscosifying agent, adds extreme pressure anti-wear additives, oxidation inhibitor, and adds special synthetic materials and make; Therefore, the present invention has advantages of high bearing capacity and friction resistant performance, can reduce gear wear, strengthens the life-span; Has good pump-conveying property; Have good adhesivity, can guarantee that gear operation has enough oil film thicknesses, and can reduce the gear operation noise, improve service life of gear greatly; Have good low temperature properties, can under low temperature condition, can normally use by assurance equipment, possess good metal clinging power in the use temperature scope.
Description of drawings
Fig. 1 is a process flow sheet of the present invention.
Embodiment
Embodiment during following the present invention incites somebody to action in conjunction with the accompanying drawings is further described:
Embodiment one:
The production method of the special grease of step-down gear of the present invention adopts following processing step: its component ratio is the percentage ratio meter by weight:
Get the cycloalkyl oil petroleum refined by naphthenic: ten dihydroxyl lipid acid 55%: dialkyl diphenylamine 3%: lithium hydroxide (100%) 0.7%: sulfide isobutene 0.3%: ethylene-propylene copolymer 2%: polyisobutene 3%: 36% is the special grease component of step-down gear of the present invention.
Under 60 ℃ of conditions, (its kinematic viscosity of 100 ℃ is 5-20mm to weight proportion in accordance with regulations with the cycloalkyl oil petroleum refined by naphthenic
2/ s) 80%, the ten dihydroxyl lipid acid, ethylene-propylene copolymer of total amount and lithium hydroxide add in the high speed convection contactor and mix, and be warmed up to 100 ℃ and carry out saponification reaction, saponification 1 hour; Be warming up to 210 ℃, be incubated 15 minutes; The post reaction mixture material is transferred to middle still, carries out multiviscosisty and promptly begin in the process of retrogradation at material, add the oil of cycloalkyl oil petroleum refined by naphthenic total amount 20% while stirring, refueling time was controlled at 20 minutes; After adding oil, open the reacting kettle jacketing water of condensation and cool off, when treating that temperature is reduced to 140 ℃, (promptly open bottoms material recycle pump, regulate the aperture of the valve on the circulation line, making material is the 0.5-0.6 MPa by the pressure of valve) sheared in insulation, shears after 1 hour; Open the reacting kettle jacketing water of condensation again and cool off, when treating that temperature is reduced to 110 ℃, allow material carry out homogenizing by high pressure homogenizer and disperse one time, homogenization pressures is controlled at 20 MPas; When greenhouse cooling to 80 ℃ adding polyisobutene (molecular weight is 1000-5000), dialkyl diphenylamine, sulfide isobutene, mixing and stirring; Detect qualified after, the still that will outgas vacuumizes, and lubricating grease is transferred to degassing still outgases, and at last by 120 order impurity screenings, is finished product packing.
Adopt conventional equipment in the embodiment of the invention, starting material are purchased by market.
Embodiment two:
The production method of the special grease of step-down gear of the present invention adopts following processing step: its component ratio is the percentage ratio meter by weight:
Get the cycloalkyl oil petroleum refined by naphthenic: ten dihydroxyl lipid acid 64%: ditertbutylparacresol 4%: lithium hydroxide (100%) 0.8%: tritolyl phosphate 0.2%: sulfide isobutene 1%: ethylene-propylene copolymer 1%: polyisobutene 5%: 24% is the special grease component of step-down gear of the present invention.
Under 70 ℃ of conditions, (its kinematic viscosity of 100 ℃ is 5-20mm to weight proportion in accordance with regulations with the exquisite Dormant oils of cycloalkyl
2/ s) 80%, ten dihydroxyl lipid acid, ethylene-propylene copolymer and the lithium hydroxide adding high speed convection contactor of total amount mix, and be warmed up to 120 ℃ and carry out saponification reaction, saponification 1.5 hours; Be warming up to 215 ℃ of insulations 20 minutes; The post reaction mixture material is transferred to middle still, carries out multiviscosisty and promptly begin in the process of retrogradation at material, add the oil of cycloalkyl oil petroleum refined by naphthenic total amount 20% while stirring, refueling time was controlled at 30 minutes; After adding oil, open the reacting kettle jacketing water of condensation and cool off, when treating that temperature is reduced to 150 ℃, (promptly open bottoms material recycle pump, regulate the aperture of the valve on the circulation line, making material is the 0.5-0.6 MPa by the pressure of valve) sheared in insulation, shears after 1 hour; Open the reacting kettle jacketing water of condensation again and cool off, when treating that temperature is reduced to 120 ℃, allow material carry out homogenizing by high pressure homogenizer and disperse one time, homogenization pressures is controlled at 20 MPas; When greenhouse cooling to 95 ℃ adding polyisobutene (molecular weight is 1000-5000), ditertbutylparacresol, tritolyl phosphate, sulfide isobutene, mixing and stirring; Detect qualified after, the still that will outgas vacuumizes, and lubricating grease is transferred to degassing still outgases, and at last by 120 order impurity screenings, is finished product packing.
Embodiment three:
The production method of the special grease of step-down gear of the present invention adopts following processing step: its component ratio is the percentage ratio meter by weight:
Get the cycloalkyl oil petroleum refined by naphthenic: ten dihydroxyl lipid acid 75%: dialkyl diphenylamine 5%: lithium hydroxide (100%) 0.5%: zinc dialkyl dithiocarbamate 0.5%: sulfide isobutene 1%: ethylene-propylene copolymer 1%: polyisobutene 7%: 10% is the special grease component of step-down gear of the present invention.
Under 65 ℃ of conditions, (its kinematic viscosity of 100 ℃ is 5-20mm to weight proportion in accordance with regulations with the exquisite Dormant oils of cycloalkyl
2/ s) 80%, ten dihydroxyl lipid acid, ethylene-propylene copolymer and the lithium hydroxide adding high speed convection contactor of total amount mix, and be warmed up to 140 ℃ and carry out saponification reaction, saponification 2 hours; Be warming up to 220 ℃, be incubated 30 minutes; The post reaction mixture material is transferred to middle still, carries out multiviscosisty and promptly begin in the process of retrogradation at material, add the oil of cycloalkyl oil petroleum refined by naphthenic total amount 20% while stirring, refueling time was controlled at 25 minutes; After adding oil, open the reacting kettle jacketing water of condensation and cool off, when treating that temperature is reduced to 160 ℃, (promptly open bottoms material recycle pump, regulate the aperture of the valve on the circulation line, making material is the 0.5-0.6 MPa by the pressure of valve) sheared in insulation, shears after 1 hour; Open the reacting kettle jacketing water of condensation again and cool off, when treating that temperature is reduced to 130 ℃, allow material carry out homogenizing by high pressure homogenizer and disperse one time, homogenization pressures is controlled at 20 MPas; When greenhouse cooling to 90 ℃ adding polyisobutene (molecular weight is 1000-5000), dialkyl diphenylamine, zinc dialkyl dithiocarbamate, sulfide isobutene, mixing and stirring; Detect qualified after, the still that will outgas vacuumizes, and lubricating grease is transferred to degassing still outgases, and at last by 120 order impurity screenings, is finished product packing.
The lubricating grease that the present invention produces by above-mentioned three embodiment, its physical and chemical performance analysis the results are shown in following table:
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Test method | |
| Outward appearance | The smooth even ointment of light color | The smooth even ointment of light color | The smooth even ointment of light color | Range estimation |
| Drawing cone is gone into | 355 | 370 | 385 | GB/T269 |
| Degree, 0.1mm | ||||
| Dropping point, ℃ | 165 | 166 | 167 | GB/T4929 |
| Corrosion (T 2Copper sheet, 100 ℃, 24h) | Qualified | Qualified | Qualified | GB/T7326 second method |
| Non-corrosibility (52 ℃, 48h), level | 1 | 1 | 1 | GB/T5018 |
| Similar viscosity (20 ℃, 10S -1)， Pa·S | 2400 | 1800 | 800 | SH/T0048 |
| Extreme pressure property; (four-ball tester method) P B，Kg | 70 | 100 | 110 | SH/T0202 |
Claims (5)
1. the special grease of a step-down gear is characterized in that component ratio percentage ratio meter by weight:
Getting the cycloalkyl oil petroleum refined by naphthenic is: 50-80%, lipid acid are: 1-5%, oxidation inhibitor are: 0.5-1%, lithium hydroxide are: 0.1-0.5%, extreme pressure anti-wear additives are: 1-3%, polyisobutene are: 1-10% and ethylene-propylene copolymer are: 10-40%; Earlier with the exquisite Dormant oils total amount of cycloalkyl 80%, lipid acid, ethylene-propylene copolymer and lithium hydroxide add high speed convection contactor, intensification saponification reaction; Through refining, add 20% of the exquisite Dormant oils total amount of cycloalkyl and carry out multiviscosisty, cooling, shearing, homogenizing; Add polyisobutene, oxidation inhibitor and extreme pressure anti-wear additives again, stir, outgas, be filtered into finished product.
2. the production method of the special grease of a step-down gear according to claim 1 is characterized in that adopting following processing step:
(1), be lower than under 80 ℃ the condition, with the exquisite Dormant oils total amount of cycloalkyl 80%, lipid acid, ethylene-propylene copolymer and lithium hydroxide add the convection current contactor and mix, be warming up to 100-150 ℃ and carry out saponification reaction, saponification 1-2 hour; Be warming up to 210-220 ℃ again and refine, be incubated 15-30 minute;
(2), the mixture after will refining, being incubated be transferred in the middle of still, add 20% of the exquisite Dormant oils total amount of cycloalkyl and carry out multiviscosisty, cooling, temperature is reduced to 140-160 ℃, disperses circulation shear;
(3), after mixture shears, greenhouse cooling is to 100-130 ℃ of homogenizing; When greenhouse cooling during to 80-100 ℃, add polyisobutene, oxidation inhibitor and extreme pressure anti-wear additives, stir;
(4), the degassing, be filtered into finished product.
3. the production method of the special grease of a kind of step-down gear according to claim 1 and 2 is characterized in that described lipid acid is ten dihydroxystearic acids or stearic acid or its mixture.
4. the production method of the special grease of a kind of step-down gear according to claim 1 and 2 is characterized in that described oxidation inhibitor is one or more mixtures in dialkyl diphenylamine, ditertbutylparacresol or the zinc dialkyl dithiophosphate.
5. the production method of the special grease of a kind of step-down gear according to claim 1 and 2 is characterized in that described extreme pressure anti-wear additives is one or more mixtures in sulfide isobutene, zinc dialkyl dithiocarbamate or the tritolyl phosphate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101313408A CN101157878A (en) | 2007-08-27 | 2007-08-27 | Special grease for speed reducer and method of production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101313408A CN101157878A (en) | 2007-08-27 | 2007-08-27 | Special grease for speed reducer and method of production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101157878A true CN101157878A (en) | 2008-04-09 |
Family
ID=39306117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101313408A Pending CN101157878A (en) | 2007-08-27 | 2007-08-27 | Special grease for speed reducer and method of production |
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| Country | Link |
|---|---|
| CN (1) | CN101157878A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102399615A (en) * | 2010-09-19 | 2012-04-04 | 无锡市飞天油脂有限公司 | Lubricating grease used for automobile hub bearing and preparation method thereof |
| CN102676278A (en) * | 2012-03-29 | 2012-09-19 | 上海东昊油品有限公司 | Energy-saving transmission oil special for small vehicle |
| CN103525512A (en) * | 2013-10-23 | 2014-01-22 | 中国石油化工股份有限公司 | Lithium-based lubricating grease composition with high temperature, long service and low noise and preparation method |
| CN105199813A (en) * | 2015-09-23 | 2015-12-30 | 深圳市鹰达行实业有限公司 | Low-noise lubricating grease and preparation method thereof |
| CN105273821A (en) * | 2015-10-16 | 2016-01-27 | 大连创达技术交易市场有限公司 | Lubricating grease and production method thereof |
| CN105316097A (en) * | 2015-11-06 | 2016-02-10 | 中国石油化工股份有限公司 | Composition of special ultralow-temperature grease for casters and preparation method of special ultralow-temperature grease |
| CN105647628A (en) * | 2015-12-24 | 2016-06-08 | 杭州新港石油化工有限公司 | Special grease for worm and gear and preparation method thereof |
| CN106701263A (en) * | 2016-12-13 | 2017-05-24 | 新乡市恒星科技有限责任公司 | Special lubricating grease for numerically-controlled machine tools and preparation method of special lubricating grease |
| US10676689B2 (en) | 2017-12-29 | 2020-06-09 | Exxonmobil Research And Engineering Company | Grease compositions for low temperature operation |
| CN111334357A (en) * | 2020-04-14 | 2020-06-26 | 无锡中石油润滑脂有限责任公司 | Mineral oil lithium-based lubricating grease and preparation process thereof |
| CN112195056A (en) * | 2019-12-23 | 2021-01-08 | 新协同（宁波）油脂有限公司 | Bearing lubricating grease with covering property and silencing property and preparation method thereof |
| CN112375604A (en) * | 2020-10-16 | 2021-02-19 | 山东沃特润滑科技有限公司 | Non-soap-base fully-synthetic lubricating grease and preparation method thereof |
| CN113604266A (en) * | 2021-07-26 | 2021-11-05 | 新协同（宁波）油脂有限公司 | Special lubricating grease for speed reducer and preparation method thereof |
-
2007
- 2007-08-27 CN CNA2007101313408A patent/CN101157878A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102399615A (en) * | 2010-09-19 | 2012-04-04 | 无锡市飞天油脂有限公司 | Lubricating grease used for automobile hub bearing and preparation method thereof |
| CN102676278A (en) * | 2012-03-29 | 2012-09-19 | 上海东昊油品有限公司 | Energy-saving transmission oil special for small vehicle |
| CN103525512A (en) * | 2013-10-23 | 2014-01-22 | 中国石油化工股份有限公司 | Lithium-based lubricating grease composition with high temperature, long service and low noise and preparation method |
| CN105199813A (en) * | 2015-09-23 | 2015-12-30 | 深圳市鹰达行实业有限公司 | Low-noise lubricating grease and preparation method thereof |
| CN105273821A (en) * | 2015-10-16 | 2016-01-27 | 大连创达技术交易市场有限公司 | Lubricating grease and production method thereof |
| CN105316097A (en) * | 2015-11-06 | 2016-02-10 | 中国石油化工股份有限公司 | Composition of special ultralow-temperature grease for casters and preparation method of special ultralow-temperature grease |
| CN105647628A (en) * | 2015-12-24 | 2016-06-08 | 杭州新港石油化工有限公司 | Special grease for worm and gear and preparation method thereof |
| CN106701263A (en) * | 2016-12-13 | 2017-05-24 | 新乡市恒星科技有限责任公司 | Special lubricating grease for numerically-controlled machine tools and preparation method of special lubricating grease |
| US10676689B2 (en) | 2017-12-29 | 2020-06-09 | Exxonmobil Research And Engineering Company | Grease compositions for low temperature operation |
| CN112195056A (en) * | 2019-12-23 | 2021-01-08 | 新协同（宁波）油脂有限公司 | Bearing lubricating grease with covering property and silencing property and preparation method thereof |
| CN111334357A (en) * | 2020-04-14 | 2020-06-26 | 无锡中石油润滑脂有限责任公司 | Mineral oil lithium-based lubricating grease and preparation process thereof |
| CN112375604A (en) * | 2020-10-16 | 2021-02-19 | 山东沃特润滑科技有限公司 | Non-soap-base fully-synthetic lubricating grease and preparation method thereof |
| CN113604266A (en) * | 2021-07-26 | 2021-11-05 | 新协同（宁波）油脂有限公司 | Special lubricating grease for speed reducer and preparation method thereof |
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Open date: 20080409 |