CN115926872A - Special lubricating grease for upper arm support bearing of cone crusher and preparation method thereof - Google Patents
Special lubricating grease for upper arm support bearing of cone crusher and preparation method thereof Download PDFInfo
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- CN115926872A CN115926872A CN202211712160.XA CN202211712160A CN115926872A CN 115926872 A CN115926872 A CN 115926872A CN 202211712160 A CN202211712160 A CN 202211712160A CN 115926872 A CN115926872 A CN 115926872A
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- 230000001050 lubricating effect Effects 0.000 title claims abstract description 32
- 239000004519 grease Substances 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims description 7
- GLDOVTGHNKAZLK-UHFFFAOYSA-N octadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000002199 base oil Substances 0.000 claims abstract description 32
- PAFZNILMFXTMIY-UHFFFAOYSA-N cyclohexylamine Chemical compound NC1CCCCC1 PAFZNILMFXTMIY-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000000203 mixture Substances 0.000 claims abstract description 26
- 239000002562 thickening agent Substances 0.000 claims abstract description 24
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 18
- 239000011733 molybdenum Substances 0.000 claims abstract description 18
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 16
- 239000011707 mineral Substances 0.000 claims abstract description 16
- JXEXTWFZDQTOKO-UHFFFAOYSA-N 2-methyl-2-(2-methylundecan-2-yltrisulfanyl)undecane Chemical group CCCCCCCCCC(C)(C)SSSC(C)(C)CCCCCCCCC JXEXTWFZDQTOKO-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229920013639 polyalphaolefin Polymers 0.000 claims abstract description 15
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000002156 mixing Methods 0.000 claims abstract description 14
- WERKSKAQRVDLDW-ANOHMWSOSA-N [(2s,3r,4r,5r)-2,3,4,5,6-pentahydroxyhexyl] (z)-octadec-9-enoate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO WERKSKAQRVDLDW-ANOHMWSOSA-N 0.000 claims abstract description 12
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000012964 benzotriazole Substances 0.000 claims abstract description 12
- DKVNPHBNOWQYFE-UHFFFAOYSA-N carbamodithioic acid Chemical compound NC(S)=S DKVNPHBNOWQYFE-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000012990 dithiocarbamate Substances 0.000 claims abstract description 12
- KKJDTCBLJTWINH-UHFFFAOYSA-N n-methyl-n-phenylnaphthalen-1-amine Chemical group C=1C=CC2=CC=CC=C2C=1N(C)C1=CC=CC=C1 KKJDTCBLJTWINH-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 9
- 238000005260 corrosion Methods 0.000 claims abstract description 9
- 230000007797 corrosion Effects 0.000 claims abstract description 9
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 8
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 8
- 239000003112 inhibitor Substances 0.000 claims abstract description 8
- 239000003607 modifier Substances 0.000 claims abstract description 8
- 229920000728 polyester Polymers 0.000 claims abstract description 8
- 229920002635 polyurethane Polymers 0.000 claims abstract description 7
- 239000004814 polyurethane Substances 0.000 claims abstract description 7
- 239000002904 solvent Substances 0.000 claims abstract description 3
- 238000003756 stirring Methods 0.000 claims description 25
- 238000001816 cooling Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 8
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 6
- 239000011593 sulfur Substances 0.000 claims description 6
- 229910052717 sulfur Inorganic materials 0.000 claims description 6
- 238000005979 thermal decomposition reaction Methods 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 5
- 238000004806 packaging method and process Methods 0.000 claims description 5
- 238000006116 polymerization reaction Methods 0.000 claims description 5
- 238000007670 refining Methods 0.000 claims description 5
- 230000000379 polymerizing effect Effects 0.000 abstract description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 12
- 229910052744 lithium Inorganic materials 0.000 description 12
- 239000002131 composite material Substances 0.000 description 8
- 150000002148 esters Chemical class 0.000 description 5
- 239000000344 soap Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 229920000620 organic polymer Polymers 0.000 description 3
- 239000005076 polymer ester Substances 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 150000002191 fatty alcohols Chemical class 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- RBHDHUYOZLKADU-UHFFFAOYSA-N n-benzylnaphthalen-1-amine Chemical class C=1C=CC2=CC=CC=C2C=1NCC1=CC=CC=C1 RBHDHUYOZLKADU-UHFFFAOYSA-N 0.000 description 2
- -1 octadecanol Chemical class 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229920002396 Polyurea Polymers 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 239000003831 antifriction material Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 125000000753 cycloalkyl group Chemical group 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- PSACBMCCZLGPIA-UHFFFAOYSA-J molybdenum(4+) tetraformate Chemical compound C(=O)[O-].[Mo+4].C(=O)[O-].C(=O)[O-].C(=O)[O-] PSACBMCCZLGPIA-UHFFFAOYSA-J 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Abstract
The invention relates to special lubricating grease for an upper arm support bearing of a cone crusher, which comprises the following components in parts by weight: naphthenic refined mineral base oil: 40-55 parts; polyalphaolefin base oil: 30-35 parts; a thickening agent: 7-10 parts; corrosion inhibitors: 3-5 parts; friction modifiers: 2-5 parts; extreme pressure agent: 2-3 parts of a solvent; antioxidant: 1-2 parts; the thickening agent is a carbamido-polyurethane thickening agent formed by polymerizing a mixture of cyclohexylamine and octadecanol with diphenylmethane-4, 4' -diisocyanate; the corrosion inhibitor is a mixture of sorbitol monooleate and benzotriazole, and the mixing mass ratio is 9.5-10.5: 1; the friction modifier is a mixture of organic polyester and molybdenum dialkyl dithiocarbamate, and the mixing mass ratio is 2-2.5: 1; the extreme pressure agent is di-tert-dodecyl trisulfide; the antioxidant is alkylated phenyl methyl naphthylamine. The lubricating grease disclosed by the invention is friendly to cold start and running stability of bearings in cold regions and field operation.
Description
Technical Field
The invention relates to the technical field of lubricating grease, and particularly relates to special lubricating grease for an upper arm support bearing of a cone crusher.
Background
In recent years, with the continuous improvement of the mining technology in China, the mechanization degree of mining operation is greatly improved, and the cone crusher is used as main crushing and processing equipment and is widely applied to industries such as mines, metallurgy, buildings and the like. The crushing process of the cone crusher is completed between a fixed cone and an eccentrically rotating movable cone, and the rotating swing of the movable cone causes the machine body to generate periodic impact and vibration, so that related parts are seriously abraded. The upper arm support bearing of the crusher is used as a main stress part, and the performance and effect of the lubricating grease adopted by the upper arm support bearing are very high under the harsh working conditions of low speed, heavy load, dust pollution and the like.
At present, mineral or synthetic composite lithium-based lubricating grease which takes composite lithium soap as a thickening agent is generally adopted for lubricating the upper arm support bearing of the cone crusher at home and abroad. Due to the fact that the molecular polarity of the composite lithium soap thickener is strong, the application effect of the high extreme pressure and load-resisting additive in the system is not ideal, the extreme pressure lubrication performance, the bearing service life and the like of most of the composite lithium-based lubricating grease cannot meet the lubrication requirements of a large heavy-load crusher, and the low-temperature starting and high-temperature resistance performance cannot meet the requirements of wide-temperature adaptability of cold-region (the environment temperature is lower than-30 ℃) operation, high-temperature operation and the like. Meanwhile, with the sharp increase of lithium resource demand and the rising price, the cost of the composite lithium soap thickener is greatly increased to 10-12 times of the original cost. Therefore, the lubricating grease using the composite lithium soap as the thickening agent has poor application effect and economic performance on the upper arm support bearing of the cone crusher.
Disclosure of Invention
The invention aims to solve the technical problem of providing the special lubricating grease for the upper arm support bearing of the cone crusher, which adopts the carbamido-polyurethane thickening agent without containing metal ions, has outstanding impact load resistance, fretting wear resistance, longer bearing life, good low-temperature starting and running stability and good economical efficiency.
In order to achieve the purpose, the invention adopts the following technical scheme:
a special lubricating grease for a cone crusher upper arm support bearing comprises the following components in parts by weight:
naphthenic base refined mineral base oil: 40-55 parts;
polyalphaolefin base oil: 30-35 parts;
a thickening agent: 7-10 parts;
corrosion inhibitors: 3-5 parts;
friction modifiers: 2-5 parts;
extreme pressure agent: 2-3 parts;
antioxidant: 1-2 parts;
the thickening agent is a carbamido-polyurethane thickening agent formed by polymerizing a mixture of cyclohexylamine and octadecanol with diphenylmethane-4, 4' -diisocyanate;
the corrosion inhibitor is a mixture of sorbitol monooleate and benzotriazole, and the mixing mass ratio is 9.5-10.5: 1;
the friction modifier is a mixture of organic polyester and molybdenum dialkyl dithiocarbamate, and the mixing mass ratio is 2-2.5: 1;
the extreme pressure agent is di-tert-dodecyl trisulfide;
the antioxidant is alkylated phenyl methyl naphthylamine.
The naphthenic base refined mineral base oil contains 0-0.3 percent of sulfur by mass and 220.0-260.0 mm of kinematic viscosity at 40 DEG C 2 /s。
The poly-alpha-olefin base oil has a kinematic viscosity of 550.0-650.0 mm at 40 DEG C 2 /s。
The molar ratio of the cyclohexylamine to the octadecanol is 1.5-2: 1.
the average molecular weight M of the organic polymeric ester is 20000-25000, and the kinematic viscosity at 40 ℃ is 10500-12500 mm 2 S; dialkyldithioamino groupThe molybdenum content of the molybdenum formate is 9.5-10.5% by mass, and the thermal decomposition temperature is more than or equal to 330 ℃.
The mass percentage of sulfur in the di-tert-dodecyl trisulfide is as follows: 20-22% and the thermal decomposition temperature is more than or equal to 210 ℃.
A preparation method of special lubricating grease for an upper arm support bearing of a cone crusher comprises the steps of mixing naphthenic base refined mineral base oil and poly-alpha-olefin base oil and heating to 80-85 ℃; adding diphenylmethane-4, 4' -diisocyanate, stirring and dissolving for 20-30 min; stirring the mixed materials, cooling to 60-70 ℃, sequentially adding cyclohexylamine and octadecanol, stirring, heating to 140-160 ℃, keeping for 40-50 min, and finishing polymerization refining; stirring and cooling the mixed material to 80-90 ℃, sequentially adding a premixture of sorbitol monooleate and benzotriazole, a premixture of organic polyester and molybdenum dialkyl dithiocarbamate, di-tert-dodecyl trisulfide and alkylated phenyl methyl naphthylamine, stirring and homogenizing for 60-80min, filtering by a 120 mu m filter screen, and packaging.
Compared with the prior art, the invention has the beneficial effects that:
1. the base oil component with good low temperature and viscosity-temperature performance is adopted, the lubricating grease has wider environmental temperature adaptability, and is friendly to cold start and running stability of the upper arm support bearing of the mine cone crusher in cold regions (the environmental temperature is lower than minus 30 ℃) and field operation.
2. The carbamido-polyurethane mixture generated by polymerizing cyclohexylamine, octadecanol and diphenylmethane-4, 4' -diisocyanate is used as the thickening agent. Because the molecular polarity of the long-chain fatty alcohol, namely octadecanol, is stronger than that of common fatty amines and the intermolecular steric hindrance is smaller, compared with the polyurea-based thickening agent taking amines as raw materials, the polyurethane thickening agent generated by the reaction of the fatty alcohol and diphenylmethane-4, 4' -diisocyanate has tighter fiber arrangement, stronger adsorption force, good shear stability and excellent surface adhesion to friction pairs.
3. The high molecular weight organic polyester and the molybdenum dialkyl dithiocarbamate are compounded for use, so that the friction reducing performance is excellent, the oil film strength is high, the use amount of a vulcanizing additive, particularly an active sulfide, can be effectively reduced while the impact load resistance is strong, the increase of the tendency of fretting and fatigue wear caused by the formation of a chemical reaction film with strong corrosivity on the surface of a friction pair is avoided, and the service life of equipment is further influenced.
4. The alkyl sulfide with higher decomposition temperature and excellent high-temperature stability is used as an extreme pressure agent and is compounded with an antifriction agent in the components for use, so that the lubricating protection of equipment under the conditions of higher and wider temperature is met.
5. Compared with the special lubricating grease which is commonly used in domestic and domestic cone crusher upper arm support bearings and takes composite lithium soap as a thickening agent, the special lubricating grease does not adopt lithium raw materials, has good performance and application effect and has outstanding economic performance.
Detailed Description
The invention is further illustrated by the following examples:
the following examples describe the invention in detail. These examples are merely illustrative of the best embodiments of the present invention and do not limit the scope of the invention.
A special lubricating grease for a cone crusher upper arm support bearing comprises the following components in parts by weight:
naphthenic refined mineral base oil: 40-55 parts;
polyalphaolefin base oil: 30-35 parts;
a thickening agent: 7-10 parts;
corrosion inhibitors: 3-5 parts;
friction modifiers: 2-5 parts;
extreme pressure agent: 2-3 parts of a solvent;
antioxidant: 1-2 parts;
the thickening agent is a carbamido-polyurethane thickening agent formed by polymerizing a mixture of cyclohexylamine and octadecanol with diphenylmethane-4, 4' -diisocyanate;
the corrosion inhibitor is a mixture of sorbitol monooleate and benzotriazole, and the mixing mass ratio is (9.5-10.5): 1;
the friction modifier is a mixture of organic polyester and molybdenum dialkyl dithiocarbamate, and the mixing mass ratio is (2-2.5): 1;
the extreme pressure agent is di-tert-dodecyl trisulfide;
the antioxidant is alkylated phenyl methyl naphthylamine.
The naphthenic base refined mineral base oil contains 0 to 0.3 mass percent of sulfur and 220.0 to 260.0mm of kinematic viscosity at 40 DEG C 2 /s。
The poly-alpha-olefin base oil has a kinematic viscosity of 550.0-650.0 mm at 40 DEG C 2 /s。
The molar ratio of the cyclohexylamine to the octadecanol is (1.5-2): 1.
the average molecular weight M of the organic polymeric ester is 20000-25000, and the kinematic viscosity at 40 ℃ is 10500-12500 mm 2 S; the molybdenum content of the molybdenum dialkyl dithiocarbamate is 9.5-10.5% by weight, and the thermal decomposition temperature is more than or equal to 330 ℃.
The mass percentage of sulfur in the di-tert-dodecyl trisulfide is as follows: 20-22% and the thermal decomposition temperature is more than or equal to 210 ℃.
The technical indexes of the special lubricating grease for the upper arm support bearing of the cone crusher are shown in a table 1:
table 1: technical index of special lubricating grease for upper arm support bearing of cone crusher
[ example 1]
A special lubricating grease for an upper arm support bearing of a cone crusher is prepared from the following components in parts by weight:
naphthenic base refined mineral base oil: 50 parts of a mixture;
polyalphaolefin base oil: 30 parts of a binder;
diphenylmethane-4, 4' -diisocyanate: 3.5 parts;
cyclohexylamine: 1.9 parts;
octadecanol: 2.6 parts;
sorbitol monooleate: 2.72 parts;
benzotriazole: 0.28 part;
organic polymeric esters: 2.7 parts;
molybdenum dialkyldithiocarbamate: 1.3 parts;
di-tert-dodecyl trisulfide: 3 parts of a mixture;
alkylated phenyl methyl naphthylamine: and 2 parts.
The specific preparation process of this example is as follows:
metering and mixing naphthenic base refined mineral base oil and poly-alpha-olefin base oil, heating to 80-85 ℃, and mixing to obtain a mixture with a kinematic viscosity of 350mm at 40 DEG C 2 /s, adding diphenylmethane-4, 4' -diisocyanate, stirring and dissolving for 20min; stirring the mixed materials, cooling to 60-70 ℃, sequentially adding cyclohexylamine and octadecanol, stirring, heating to 140-160 ℃, keeping for 40-50 min, and finishing polymerization refining; stirring and cooling the mixed materials to 80-90 ℃, sequentially metering a pre-mixture of sorbitol monooleate and benzotriazole, a pre-mixture of organic polymer ester and molybdenum dialkyl dithiocarbamate, di-tert-dodecyl trisulfide and alkylated phenyl methyl naphthylamine, stirring and homogenizing for 60min, filtering by a 120 mu m filter screen and packaging.
[ example 2]
A special lubricating grease for an upper arm support bearing of a cone crusher is prepared from the following components in parts by weight:
naphthenic base refined mineral base oil: 45 parts of (1);
polyalphaolefin base oil: 32 parts of (1);
diphenylmethane-4, 4' -diisocyanate: 3.5 parts;
cyclohexylamine: 1.9 parts;
octadecanol: 2.6 parts;
sorbitol monooleate: 4.55 parts;
benzotriazole: 0.45 part;
organic polymeric esters: 2.7 parts;
molybdenum dialkyldithiocarbamate: 1.3 parts;
di-tert-dodecyl trisulfide: 3 parts of a mixture;
alkylated phenylmethylnaphthylamine: and 3 parts.
The specific preparation process of this example is as follows:
cycloalkyl radicalThe refined mineral base oil and the poly-alpha-olefin base oil are mixed in a metering way, the temperature is raised to 80 to 85 ℃, and the kinematic viscosity at 40 ℃ after mixing is 360mm 2 Adding diphenylmethane-4, 4' -diisocyanate, stirring and dissolving for 20min; stirring the mixed material, cooling to 60-70 ℃, sequentially adding cyclohexylamine and octadecanol, stirring, heating to 140-160 ℃, and keeping for 40-50 min to complete polymerization refining; stirring and cooling the mixed materials to 80-90 ℃, sequentially metering a pre-mixture of sorbitol monooleate and benzotriazole, a pre-mixture of organic polymer ester and molybdenum dialkyl dithiocarbamate, di-tert-dodecyl trisulfide and alkylated phenyl methyl naphthylamine, stirring and homogenizing for 60min, filtering by a 120 mu m filter screen and packaging.
[ example 3]
A special lubricating grease for an upper arm support bearing of a cone crusher is prepared from the following components in parts by weight:
naphthenic base refined mineral base oil: 42 parts of (A);
polyalphaolefin base oil: 35 parts of (B);
diphenylmethane-4, 4' -diisocyanate: 4 parts of a mixture;
cyclohexylamine: 2.1 parts;
octadecanol: 2.9 parts;
sorbitol monooleate: 4.55 parts;
benzotriazole: 0.45 part;
organic polymeric esters: 2.7 parts;
molybdenum dialkyldithiocarbamate: 1.3 parts;
di-tert-dodecyl trisulfide: 3 parts of a mixture;
alkylated phenylmethylnaphthylamine: and 2 parts of the raw materials.
The specific preparation process of this example is as follows:
metering and mixing naphthenic base refined mineral base oil and poly-alpha-olefin base oil, heating to 80-85 ℃, and mixing to obtain a mixture with a kinematic viscosity of 380mm at 40 DEG C 2 Adding diphenylmethane-4, 4' -diisocyanate, stirring and dissolving for 20min; stirring the mixed materials, cooling to 60-70 ℃, sequentially adding cyclohexylamine and octadecanol, stirring, heating to 140-160 ℃, keeping for 40-50 min, and finishing polymerization refining;stirring and cooling the mixed materials to 80-90 ℃, sequentially metering a pre-mixture of sorbitol monooleate and benzotriazole, a pre-mixture of organic polymer ester and molybdenum dialkyl dithiocarbamate, di-tert-dodecyl trisulfide and alkylated phenyl methyl naphthylamine, stirring and homogenizing for 60min, filtering by a 120 mu m filter screen and packaging.
Examples product performance testing is shown in table 2:
table 2: test results of grease specially used for upper arm support bearing of cone crusher prepared in embodiments 1 to 3
The thickening agent of the special lubricating grease does not contain metal ions, and has longer bearing life and good oxidation stability; the mixed base oil component with good low-temperature performance and viscosity-temperature performance is adopted, so that the cold start and running stability of cold region operation equipment are effectively ensured; the oil film has high strength, and the impact load resistance and fretting wear resistance are outstanding; the adhesiveness and the corrosion resistance are outstanding, and the erosion of external dust, impurities and the like is prevented; compared with the commonly used composite lithium-based thickening agent at home and abroad, the lithium-based thickening agent has good economic performance because no lithium raw material is adopted.
Claims (7)
1. The special lubricating grease for the upper arm support bearing of the cone crusher is characterized by comprising the following components in parts by weight:
naphthenic refined mineral base oil: 40-55 parts;
polyalphaolefin base oil: 30-35 parts;
thickening agent: 7-10 parts;
corrosion inhibitors: 3-5 parts;
friction modifier: 2-5 parts;
extreme pressure agent: 2-3 parts of a solvent;
antioxidant: 1-2 parts;
the thickening agent is a carbamido-polyurethane thickening agent polymerized by a mixture of cyclohexylamine and octadecanol and diphenylmethane-4, 4' -diisocyanate;
the corrosion inhibitor is a mixture of sorbitol monooleate and benzotriazole, and the mixing mass ratio is 9.5-10.5: 1;
the friction modifier is a mixture of organic polyester and molybdenum dialkyl dithiocarbamate, and the mixing mass ratio is 2-2.5: 1;
the extreme pressure agent is di-tert-dodecyl trisulfide;
the antioxidant is alkylated phenyl methyl naphthylamine.
2. The special lubricating grease for the upper arm support bearing of the cone crusher as claimed in claim 1, wherein the naphthenic refined mineral base oil contains 0-0.3% by mass of sulfur and has a kinematic viscosity at 40 ℃ of 220.0-260.0 mm 2 /s。
3. The special lubricating grease for the upper arm support bearing of the cone crusher as claimed in claim 1, wherein the poly-alpha-olefin base oil has a kinematic viscosity of 550.0-650.0 mm at 40 ℃ 2 /s。
4. The special lubricating grease for the upper arm support bearing of the cone crusher as claimed in claim 1, wherein the molar ratio of cyclohexylamine to octadecanol is 1.5-2: 1.
5. the special lubricating grease for the upper arm support bearing of the cone crusher as claimed in claim 1, wherein the average molecular weight of the organic polyester is M = 20000-25000, and the kinematic viscosity at 40 ℃ is 10500-12500 mm 2 S; the molybdenum content of the molybdenum dialkyl dithiocarbamate is 9.5-10.5% by weight, and the thermal decomposition temperature is more than or equal to 330 ℃.
6. The special lubricating grease for the upper arm support bearing of the cone crusher as claimed in claim 1, wherein the mass percentage of sulfur in the di-tert-dodecyl trisulfide is as follows: 20-22% and the thermal decomposition temperature is more than or equal to 210 ℃.
7. The preparation method of the special lubricating grease for the upper arm support bearing of the cone crusher as claimed in claim 1, wherein the naphthenic base refined mineral base oil and the polyalphaolefin base oil are mixed and heated to 80-85 ℃; adding diphenylmethane-4, 4' -diisocyanate, stirring and dissolving for 20-30 min; stirring the mixed materials, cooling to 60-70 ℃, sequentially adding cyclohexylamine and octadecanol, stirring, heating to 140-160 ℃, keeping for 40-50 min, and finishing polymerization refining; stirring and cooling the mixed material to 80-90 ℃, sequentially adding a premixture of sorbitol monooleate and benzotriazole, a premixture of organic polyester and molybdenum dialkyl dithiocarbamate, di-tert-dodecyl trisulfide and alkylated phenyl methyl naphthylamine, stirring and homogenizing for 60-80min, filtering by a 120 mu m filter screen, and packaging.
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| CN202211712160.XA CN115926872A (en) | 2022-12-29 | 2022-12-29 | Special lubricating grease for upper arm support bearing of cone crusher and preparation method thereof |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4915860A (en) * | 1987-01-09 | 1990-04-10 | Nippon Oil Co., Ltd. | Urea-urethane grease composition |
| US5512188A (en) * | 1991-03-07 | 1996-04-30 | Nippon Oil Co., Ltd. | Grease composition for constant velocity joint comprising boron nitride powder and zinc dithiophosphate |
| JPH10324885A (en) * | 1997-05-22 | 1998-12-08 | Cosmo Sogo Kenkyusho:Kk | Grease composition |
| CN102146310A (en) * | 2011-02-28 | 2011-08-10 | 晟冉（上海）能源投资有限公司 | Energy-saving antifriction additive and preparation method thereof |
| US20160145526A1 (en) * | 2013-07-31 | 2016-05-26 | Fujifilm Corporation | Production method for complex polyester composition, complex polyester composition, lubricant composition, and lubricant |
| CN107312597A (en) * | 2017-06-30 | 2017-11-03 | 北京雅士科莱恩石油化工有限公司 | A kind of triple composite membrane antiwear and energy-saving engine oils |
| CN108795541A (en) * | 2018-07-12 | 2018-11-13 | 安徽意博润滑科技有限公司 | A kind of lubricant composition and preparation method thereof and its application method |
| CN110982583A (en) * | 2019-11-07 | 2020-04-10 | 江苏澳润新材料有限公司 | Low-temperature composite calcium sulfonate-based lubricating grease and preparation method thereof |
-
2022
- 2022-12-29 CN CN202211712160.XA patent/CN115926872A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4915860A (en) * | 1987-01-09 | 1990-04-10 | Nippon Oil Co., Ltd. | Urea-urethane grease composition |
| US5512188A (en) * | 1991-03-07 | 1996-04-30 | Nippon Oil Co., Ltd. | Grease composition for constant velocity joint comprising boron nitride powder and zinc dithiophosphate |
| JPH10324885A (en) * | 1997-05-22 | 1998-12-08 | Cosmo Sogo Kenkyusho:Kk | Grease composition |
| CN102146310A (en) * | 2011-02-28 | 2011-08-10 | 晟冉（上海）能源投资有限公司 | Energy-saving antifriction additive and preparation method thereof |
| US20160145526A1 (en) * | 2013-07-31 | 2016-05-26 | Fujifilm Corporation | Production method for complex polyester composition, complex polyester composition, lubricant composition, and lubricant |
| CN107312597A (en) * | 2017-06-30 | 2017-11-03 | 北京雅士科莱恩石油化工有限公司 | A kind of triple composite membrane antiwear and energy-saving engine oils |
| CN108795541A (en) * | 2018-07-12 | 2018-11-13 | 安徽意博润滑科技有限公司 | A kind of lubricant composition and preparation method thereof and its application method |
| CN110982583A (en) * | 2019-11-07 | 2020-04-10 | 江苏澳润新材料有限公司 | Low-temperature composite calcium sulfonate-based lubricating grease and preparation method thereof |
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