CN111548843A - Commercial vehicle steering ball lubricating grease and application thereof - Google Patents
Commercial vehicle steering ball lubricating grease and application thereof Download PDFInfo
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- CN111548843A CN111548843A CN202010391338.XA CN202010391338A CN111548843A CN 111548843 A CN111548843 A CN 111548843A CN 202010391338 A CN202010391338 A CN 202010391338A CN 111548843 A CN111548843 A CN 111548843A
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
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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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
- F16C11/068—Special features relating to lubrication
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/06—Metal compounds
- C10M2201/065—Sulfides; Selenides; Tellurides
- C10M2201/066—Molybdenum sulfide
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/087—Boron oxides, acids or salts
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
- C10M2203/1006—Petroleum or coal fractions, e.g. tars, solvents, bitumen used as base material
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/0206—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers used as base material
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/022—Ethene
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/024—Propene
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/08—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type
- C10M2209/084—Acrylate; Methacrylate
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
- C10M2215/064—Di- and triaryl amines
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/02—Sulfur-containing compounds obtained by sulfurisation with sulfur or sulfur-containing compounds
- C10M2219/022—Sulfur-containing compounds obtained by sulfurisation with sulfur or sulfur-containing compounds of hydrocarbons, e.g. olefines
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
- C10M2219/044—Sulfonic acids, Derivatives thereof, e.g. neutral salts
Abstract
The invention provides a commercial vehicle steering ball lubricating grease and application thereof, wherein the lubricating grease comprises: 80-90 parts of lithium-based lubricating grease, 0.1-5 parts of tackifier, 0.1-1 part of antioxidant, 0.1-1 part of antirust agent, 1-5 parts of extreme pressure antiwear agent and 1-5 parts of molybdenum disulfide; the base oil in the lithium-based lubricating grease is selected from hydrogenated oil and/or synthetic oil; the tackifier is selected from one or more of polymethyl methacrylate, polyisobutylene and ethylene-propylene copolymer; the antioxidant is selected from amine antioxidant and/or phenol antioxidant; the rust inhibitor is selected from metal sulfonate and/or alkyl succinic acid derivative; the extreme pressure anti-wear agent is selected from one or more of borate, sulfur-containing extreme pressure anti-wear agent and phosphorus-containing extreme pressure anti-wear agent. The steering ball head lubricating grease meets the use conditions of-40 ℃ and 120 ℃ under the combined action of the components, and has excellent high and low temperature performance; the high-performance steel-steel friction pair has excellent extreme pressure wear resistance and is suitable for the surface of a steel-steel friction pair of a steering ball head of a commercial vehicle.
Description
Technical Field
The invention belongs to the field of steering ball head lubricating grease, and particularly relates to commercial vehicle steering ball head lubricating grease and application thereof.
Background
The steering tie rod ball is used as one of parts of an automobile, and the driving safety is directly influenced. In an automobile steering pull rod system, a ball pin connection is adopted to avoid the phenomenon of interference motion among a steering pull rod, a steering rocker arm and a knuckle arm.
Therefore, proper lubricating grease needs to be selected to cover the surface of the ball stud, so that the abrasion phenomenon of the ball stud is reduced, the stick-slip effect is avoided, and the ball stud can move smoothly at high and low temperatures.
Disclosure of Invention
In view of the above, the present invention provides a steering ball grease for a commercial vehicle and an application thereof, wherein the steering ball grease has excellent extreme pressure wear resistance.
The invention provides a commercial vehicle steering ball lubricating grease which comprises the following components in parts by weight:
80-90 parts of lithium-based lubricating grease, 0.1-5 parts of tackifier, 0.1-1 part of antioxidant, 1-5 parts of antirust agent, 1-5 parts of extreme pressure antiwear agent and 1-5 parts of molybdenum disulfide;
the base oil in the lithium-based lubricating grease is selected from hydrogenated oil and/or synthetic oil;
the tackifier is selected from one or more of polymethyl methacrylate, polyisobutylene and ethylene-propylene copolymer;
the antioxidant is selected from amine antioxidant and/or phenol antioxidant;
the rust inhibitor is selected from metal sulfonate and/or alkyl succinic acid derivative;
the extreme pressure anti-wear agent is selected from one or more of borate, a sulfur-containing extreme pressure anti-wear agent and a phosphorus-containing extreme pressure anti-wear agent.
Preferably, the hydrogenated oil is selected from one or more of HVI II 4, HVI II 6, HVI II 8 and HVI II 10 in type;
the type of the synthetic oil is selected from one or more of PAO4, PAO 8, PAO 10, PAO20 and PAO 40.
Preferably, the amine-type antioxidant is selected from one or more of diphenylamine, diisopropylphenyl diphenylamine and diisooctyl diphenylamine;
the phenolic antioxidant is selected from one or more of 2, 6-di-tert-butyl-p-cresol, IRGANOX L101, IRGANOX L115 and Vanlube 81.
Preferably, the metal sulfonate is selected from barium dinonylnaphthalene sulfonate and/or calcium petroleum sulfonate.
Preferably, the extreme pressure antiwear agent is selected from one or more of potassium borate, tricresyl phosphate, sulfurized isobutylene, triphenyl thiophosphate and zinc dialkyl dithiophosphate.
Preferably, the base oil in the lithium-based grease is a mixture of PAO20 and HVI II 8, a mixture of PAO40 and HVIII 6; or a mixture of PAO40 and HVI II 10.
Preferably, the kinematic viscosity of the base oil in the lithium-based lubricating grease at 100 ℃ is 10-30 mm2/s。
The invention provides application of the commercial vehicle steering ball head lubricating grease in the technical scheme to the surface of a steel-steel friction pair of a commercial vehicle steering ball head.
The invention provides a commercial vehicle steering ball lubricating grease which comprises the following components in parts by weight: 80-90 parts of lithium-based lubricating grease, 0.1-5 parts of tackifier, 0.1-1 part of antioxidant, 0.1-1 part of antirust agent, 1-5 parts of extreme pressure antiwear agent and 1-5 parts of molybdenum disulfide; the base oil in the lithium-based lubricating grease is selected from hydrogenated oil and/or synthetic oil; the tackifier is selected from one or more of polymethyl methacrylate, polyisobutylene and ethylene-propylene copolymer; the antioxidant is selected from amine antioxidant and/or phenol antioxidant; the rust inhibitor is selected from metal sulfonate and/or alkyl succinic acid derivative; the extreme pressure anti-wear agent is selected from one or more of borate, a sulfur-containing extreme pressure anti-wear agent and a phosphorus-containing extreme pressure anti-wear agent. The steering ball head lubricating grease provided by the invention meets the use conditions of-40 ℃ and 120 ℃ under the combined action of the components, and has excellent high and low temperature performance; the high-performance extreme pressure wear-resistant steel-steel friction pair has excellent extreme pressure wear-resistant performance and is suitable for the surface of a steel-steel friction pair of a steering ball head of a commercial vehicle. The experimental results show that: at minus 40 ℃, the starting torque is 0.266-0.432 N.m, and the running torque is 0.017-0.041 N.m after 10 min; the dropping point is 208-209 ℃; the four-ball method is carried out at normal temperature and 1500rpm, the maximum non-seizing load is 932-1442N, and the sintering load is 1962-4905N; the diameter of the grinding crack is 0.39-0.48 mm.
Detailed Description
The invention provides a commercial vehicle steering ball lubricating grease which comprises the following components in parts by weight:
80-90 parts of lithium-based lubricating grease, 0.1-5 parts of tackifier, 0.1-1 part of antioxidant, 0.1-1 part of antirust agent, 1-5 parts of extreme pressure antiwear agent and 1-5 parts of molybdenum disulfide;
the base oil in the lithium-based lubricating grease is selected from hydrogenated oil and/or synthetic oil;
the tackifier is selected from one or more of polymethyl methacrylate, polyisobutylene and ethylene-propylene copolymer;
the antioxidant is selected from amine antioxidant and/or phenol antioxidant;
the rust inhibitor is selected from metal sulfonate and/or alkyl succinic acid derivative;
the extreme pressure anti-wear agent is selected from one or more of borate, a sulfur-containing extreme pressure anti-wear agent and a phosphorus-containing extreme pressure anti-wear agent.
The steering ball head lubricating grease provided by the invention meets the use conditions of-40 ℃ and 120 ℃ under the combined action of the components, and has excellent high and low temperature performance; the high-performance extreme pressure wear-resistant steel-steel friction pair has excellent extreme pressure wear-resistant performance and is suitable for the surface of a steel-steel friction pair of a steering ball head of a commercial vehicle.
The commercial vehicle steering ball head lubricating grease comprises 80-90 parts by weight of lithium-based lubricating grease; in specific embodiments, the lithium-based grease is used in an amount of 80 parts, 85 parts, or 90 parts. The base oil in the lithium-based lubricating grease is selected from hydrogenated oil and/or synthetic oil; the hydrogenated oil is preferably selected from one or more of HVI II 4, HVI II 6, HVI II 8 and HVIII 10 in type; the type of the synthetic oil is preferably selected from one or more of PAO4, PAO 8, PAO 10, PAO20 and PAO 40; more preferably, the type of lithium-based grease is selected from one or more of PAO20, HVI II 8, HVI II 10 and HVIII 6. In specific embodiments, the base oil in the lithium-based grease is a mixture of 7: 3, the mass ratio of the mixture of PAO20 and HVI II 8 is 5: 5 PAO40 in admixture with HVI II 6; or the mass ratio is 4: 6 PAO40 with HVI II 10. The lithium grease comprises 90 wt% of the base oil and lithium soap.
The commercial vehicle steering ball head lubricating grease provided by the invention comprises 0.1-5 parts of tackifier; in specific embodiments, the tackifier is used in amounts of 0.1 parts, 3 parts, and 5 parts. The tackifier is selected from one or more of polymethyl methacrylate, polyisobutylene and ethylene-propylene copolymer; in a specific embodiment, the tackifier is polymethyl methacrylate or ethylene-propylene copolymer. The kinematic viscosity of the ethylene-propylene copolymer is not less than 650mm at 100 DEG C2/s。
The commercial vehicle steering ball head lubricating grease provided by the invention comprises 0.1-1 part of antioxidant, and in specific embodiments, the amount of the antioxidant is 0.1 part, 0.5 part or 1 part. The antioxidant is selected from amine antioxidant and/or phenol antioxidant; the amine-type antioxidant is preferably selected from one or more of diphenylamine, diisopropylphenyl diphenylamine and diisooctyl diphenylamine; the phenolic antioxidant is preferably selected from one or more of 2, 6-di-tert-butyl-p-cresol, IRGANOX L101, IRGANOX L115 and Vanlube 81. In particular embodiments, the antioxidant is selected from one or more of diphenylamine, diisopropylphenyl diphenylamine, and IRGANOX L101.
The commercial vehicle steering ball head lubricating grease provided by the invention comprises 1-5 parts of an antirust agent; in specific embodiments, the amount of the rust inhibitor is 1 part or 3 parts. The rust inhibitor is selected from metal sulfonate and/or alkyl succinic acid derivative; the metal sulfonate is preferably selected from barium dinonylnaphthalene sulfonate and/or calcium petroleum sulfonate. In a specific embodiment, the rust inhibitor is selected from barium dinonyl naphthalene sulfonate and/or calcium petroleum sulfonate.
The commercial vehicle steering ball head lubricating grease provided by the invention comprises 1-5 parts of extreme pressure antiwear agent; in specific embodiments, the amount of the extreme pressure antiwear agent is 1 part, 3 parts or 5 parts. The extreme pressure anti-wear agent is selected from one or more of borate, a sulfur-containing extreme pressure anti-wear agent and a phosphorus-containing extreme pressure anti-wear agent. In a specific embodiment, the extreme pressure antiwear agent is preferably selected from one or more of potassium borate, tricresyl phosphate, sulfurized isobutylene, triphenyl thiophosphate, and zinc dialkyl dithiophosphate.
The commercial vehicle steering ball head lubricating grease provided by the invention comprises 1-5 parts of molybdenum disulfide; the molybdenum disulfide is a solid lubricant and is combined with other components, so that the lubricating grease has excellent extreme pressure wear resistance. In specific embodiments, the amount of the molybdenum disulfide is 1 part, 3 parts or 5 parts.
In one embodiment of the present invention, the commercial vehicle steering ball grease preferably comprises the following components:
90 parts of lithium-based lubricating grease, wherein the mass ratio of base oil of the lithium-based lubricating grease is 7: 3 PAO20 in admixture with HVI II 8; 0.1 part of an ethylene-propylene copolymer; 0.5 part of diphenylamine; 1 part of calcium petroleum sulfonate; 3 parts of potassium borate and 3 parts of molybdenum disulfide.
According to the technical scheme, the kinematic viscosity of the commercial vehicle steering ball lubricating grease at 100 ℃ is 10-30 mm2/s。
In one embodiment of the present invention, the commercial vehicle steering ball grease preferably comprises the following components:
85 parts of lithium-based lubricating grease, wherein the mass ratio of base oil of the lithium-based lubricating grease is 5: 5 PAO40 in admixture with HVI II 6; 3 parts of polymethyl methacrylate; 0.1 part of diisopropylphenyl diphenylamine; 3 parts of barium dinonyl naphthalene sulfonate; 1 part of sulfur-containing extreme pressure antiwear agent and 1 part of molybdenum disulfide.
In another embodiment of the present invention, the commercial vehicle steering ball grease preferably comprises the following components:
80 parts of lithium-based lubricating grease, wherein the mass ratio of base oil of the lithium-based lubricating grease is 4: 6 PAO40 in admixture with HVI II 10; 5 parts of an ethylene-propylene copolymer; 1 part of IRGANOX L101; 3 parts of barium dinonyl naphthalene sulfonate; 5 parts of sulfurized isobutylene and 5 parts of molybdenum disulfide.
In the invention, the commercial vehicle steering ball head lubricating grease in the technical scheme is prepared according to the following method:
mixing 80-90 parts of lithium-based lubricating grease, 0.1-5 parts of tackifier, 0.1-1 part of antioxidant, 1-5 parts of antirust agent, 1-5 parts of extreme pressure antiwear agent and 1-5 parts of molybdenum disulfide to obtain the commercial vehicle steering ball lubricating grease.
The invention provides application of the commercial vehicle steering ball head lubricating grease in the technical scheme to the surface of a steel-steel friction pair of a commercial vehicle steering ball head.
The torque of the lubricating grease is tested by adopting SH/T0338; the invention adopts GB/T3498 to test the dropping point of the lubricating grease; the lubricating grease is tested for the wear resistance by adopting SH/T0204 lubricating grease; the invention adopts a GB/T3142 four-ball machine method to test the bearing capacity of the commercial vehicle steering ball head lubricating grease.
For further illustration of the present invention, the following will describe in detail a commercial vehicle steering ball grease and its application in conjunction with the following embodiments, but they should not be construed as limiting the scope of the present invention.
In the following examples, the kinematic viscosity at 100 ℃ of the ethylene-propylene copolymer is not less than 650mm2/s。
Example 1
90 parts of lithium-based lubricating grease, wherein the mass ratio of base oil of the lithium-based lubricating grease is 7: 3, mixing the mixture of PAO20 and HVI II 8, 0.1 part of ethylene-propylene copolymer, 0.5 part of diphenylamine, 1 part of calcium petroleum sulfonate, 3 parts of potassium borate and 3 parts of molybdenum disulfide serving as a solid lubricant to obtain the steering ball lubricating grease for the commercial vehicle.
Example 2
85 parts of lithium-based lubricating grease, wherein the mass ratio of base oil of the lithium-based lubricating grease is 5: 5, mixing the mixture of PAO40 and HVI II 6, 3 parts of polymethyl methacrylate, 0.1 part of diisopropylphenyl diphenylamine, 3 parts of barium dinonylnaphthalene sulfonate, 1 part of sulfurized isobutylene and 1 part of molybdenum disulfide serving as a solid lubricant to obtain the commercial vehicle steering ball lubricating grease.
Example 3
80 parts of lithium-based lubricating grease, wherein the mass ratio of base oil of the lithium-based lubricating grease is 4: 6, mixing the mixture of PAO40 and HVI II 10, 5 parts of ethylene-propylene copolymer, 1 part of IRGANOX L101, 3 parts of barium dinonylnaphthalene sulfonate, 5 parts of sulfurized isobutylene and 5 parts of molybdenum disulfide serving as a solid lubricant to obtain the commercial vehicle steering ball lubricating grease.
Comparative example 1
90 parts of lithium-based lubricating grease, wherein the mass ratio of base oil of the lithium-based lubricating grease is 7: 3, mixing the mixture of PAO20 and HVI II 8, 0.1 part of ethylene-propylene copolymer, 0.5 part of diphenylamine, 1 part of calcium petroleum sulfonate, 3 parts of potassium borate and 3 parts of solid lubricant light calcium carbonate to obtain the commercial vehicle steering ball head lubricating grease.
The performance of the commercial vehicle steering ball lubricating grease is tested according to the method of the technical scheme, and the result is shown in the table 1:
TABLE 1 Performance test results for greases of inventive examples 1-3 and comparative example 1
The embodiment shows that the invention provides the commercial vehicle steering ball lubricating grease which comprises the following components in parts by weight: 80-90 parts of lithium-based lubricating grease, 0.1-5 parts of tackifier, 0.1-1 part of antioxidant, 0.1-1 part of antirust agent, 1-5 parts of extreme pressure antiwear agent and 1-5 parts of molybdenum disulfide; the base oil in the lithium-based lubricating grease is selected from hydrogenated oil and/or synthetic oil; the tackifier is selected from one or more of polymethyl methacrylate, polyisobutylene and ethylene-propylene copolymer; the antioxidant is selected from amine antioxidant and/or phenol antioxidant; the rust inhibitor is selected from metal sulfonate and/or alkyl succinic acid derivative; the extreme pressure anti-wear agent is selected from one or more of borate, a sulfur-containing extreme pressure anti-wear agent and a phosphorus-containing extreme pressure anti-wear agent. The steering ball head lubricating grease provided by the invention meets the use conditions of-40 ℃ and 120 ℃ under the combined action of the components, and has excellent high and low temperature performance; the high-performance extreme pressure wear-resistant steel-steel friction pair has excellent extreme pressure wear-resistant performance and is suitable for the surface of a steel-steel friction pair of a steering ball head of a commercial vehicle. The experimental results show that: at minus 40 ℃, the starting torque is 0.266-0.432 N.m, and the running torque is 0.017-0.041 N.m after 10 min; the dropping point is 208-209 ℃; the four-ball method is carried out at normal temperature and 1500rpm, the maximum non-seizing load is 932-1442N, and the sintering load is 1962-4905N; the diameter of the grinding crack is 0.39-0.48 mm.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. A commercial vehicle steering ball lubricating grease comprises the following components in parts by weight:
80-90 parts of lithium-based lubricating grease, 0.1-5 parts of tackifier, 0.1-1 part of antioxidant, 1-5 parts of antirust agent, 1-5 parts of extreme pressure antiwear agent and 1-5 parts of molybdenum disulfide;
the base oil in the lithium-based lubricating grease is selected from hydrogenated oil and/or synthetic oil;
the tackifier is selected from one or more of polymethyl methacrylate, polyisobutylene and ethylene-propylene copolymer;
the antioxidant is selected from amine antioxidant and/or phenol antioxidant;
the rust inhibitor is selected from metal sulfonate and/or alkyl succinic acid derivative;
the extreme pressure anti-wear agent is selected from one or more of borate, a sulfur-containing extreme pressure anti-wear agent and a phosphorus-containing extreme pressure anti-wear agent.
2. The commercial vehicle steering ball grease of claim 1, wherein the hydrogenated oil is one or more types selected from the group consisting of HVI II 4, HVI II 6, HVI II 8 and HVI II 10;
the type of the synthetic oil is selected from one or more of PAO4, PAO 8, PAO 10, PAO20 and PAO 40.
3. The commercial vehicle steering ball grease of claim 1 wherein the amine-type antioxidant is selected from one or more of diphenylamine, diisopropylphenyl diphenylamine and diisooctyl diphenylamine;
the phenolic antioxidant is selected from one or more of 2, 6-di-tert-butyl-p-cresol, IRGANOX L101, IRGANOX L115 and Vanlube 81.
4. The commercial vehicle steering ball grease of claim 1, wherein the metal sulfonate is selected from barium dinonylnaphthalene sulfonate and/or calcium petroleum sulfonate.
5. The commercial vehicle steering ball grease of claim 1 wherein the extreme pressure antiwear agent is selected from one or more of potassium borate, tricresyl phosphate, sulfurized isobutylene, triphenyl thiophosphate, and zinc dialkyl dithiophosphate.
6. The commercial vehicle steering ball grease of claim 1, wherein the base oil in the lithium grease is a mixture of PAO20 and HVI II 8, a mixture of PAO40 and HVI II 6; or a mixture of PAO40 and HVI II 10.
7. The commercial vehicle steering ball head lubricating grease of claim 1, wherein the kinematic viscosity of the base oil in the lithium-based lubricating grease at 100 ℃ is 10-30 mm2/s。
8. Use of the commercial vehicle steering ball grease according to any one of claims 1 to 7 on the surface of a steel-steel friction pair of a steering ball of a commercial vehicle.
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| CN202010391338.XA CN111548843B (en) | 2020-05-09 | 2020-05-09 | Commercial vehicle steering ball lubricating grease and application thereof |
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| CN202010391338.XA CN111548843B (en) | 2020-05-09 | 2020-05-09 | Commercial vehicle steering ball lubricating grease and application thereof |
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| CN111548843A true CN111548843A (en) | 2020-08-18 |
| CN111548843B CN111548843B (en) | 2022-08-23 |
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Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4003666A (en) * | 1976-05-21 | 1977-01-18 | Gulf & Western Manufacturing Company | Ball joint assembly |
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| CN110157525A (en) * | 2019-06-13 | 2019-08-23 | 安徽和欣润滑科技有限公司 | A kind of composition and preparation method of motor turning stacked switch lubricating grease |
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