CN111004664A - All-season long-acting self-sealing composite solid lubricant for gear box - Google Patents
All-season long-acting self-sealing composite solid lubricant for gear box Download PDFInfo
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- CN111004664A CN111004664A CN201911184066.XA CN201911184066A CN111004664A CN 111004664 A CN111004664 A CN 111004664A CN 201911184066 A CN201911184066 A CN 201911184066A CN 111004664 A CN111004664 A CN 111004664A
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- composite solid
- antioxidant
- polytetrafluoroethylene
- base oil
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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
-
- 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
- C10M2201/04—Elements
- C10M2201/041—Carbon; Graphite; Carbon black
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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
- C10M2201/062—Oxides; Hydroxides; Carbonates or bicarbonates
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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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/04—Ethers; Acetals; Ortho-esters; Ortho-carbonates
- C10M2207/046—Hydroxy ethers
-
- 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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/14—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to carbon atoms of six-membered aromatic rings
- C10M2207/141—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to carbon atoms of six-membered aromatic rings monocarboxylic
- C10M2207/1415—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to carbon atoms of six-membered aromatic rings monocarboxylic used as thickening agent
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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
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/1033—Polyethers, i.e. containing di- or higher polyoxyalkylene groups 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
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/108—Polyethers, i.e. containing di- or higher polyoxyalkylene groups etherified
-
- 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
- C10M2213/00—Organic macromolecular compounds containing halogen as ingredients in lubricant compositions
- C10M2213/06—Perfluoro polymers
- C10M2213/062—Polytetrafluoroethylene [PTFE]
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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
- C10M2219/06—Thio-acids; Thiocyanates; Derivatives thereof
- C10M2219/062—Thio-acids; Thiocyanates; Derivatives thereof having carbon-to-sulfur double bonds
- C10M2219/066—Thiocarbamic type compounds
- C10M2219/068—Thiocarbamate metal salts
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
The invention discloses a full-season long-acting self-sealing composite solid lubricant for a gear box, which is prepared from base oil, a thickening agent, an antioxidant, a tackifier and a composite solid lubricating material, wherein the composite solid lubricating material consists of flaky graphite, colloidal molybdenum disulfide, polytetrafluoroethylene and yellow lead oxide, and the weight percentage of each component is as follows: 10-40% of a thickening agent, 0.2-1.6% of an antioxidant, 4-12% of a tackifier, 8-25% of flake graphite, 0.5-5% of colloidal molybdenum disulfide, 0.5-2% of polytetrafluoroethylene, 0.5-2% of yellow lead oxide and the balance of base oil.
Description
Technical Field
The invention belongs to the technical field of special lubricating grease and solid lubrication engineering, and particularly relates to a full-season long-acting self-sealing composite solid lubricant for a gear box.
Background
The gear box is a basic transmission device widely applied to many industries, and the level and the performance of the gear box directly determine the level and the performance of a matched host. In industries such as mines, ports, wind power new energy, metallurgy and the like, gear boxes are often subjected to harsh environments such as extreme temperature difference, wind load, high-temperature baking and the like. Oil leakage is a common contamination phenomenon and failure in gearbox drive systems in these areas. The oil leakage can increase the use amount of lubricating oil, causes environmental pollution to influence the lubricating effect of the gears, the bearings and other boxes, causes aggravation of friction between parts of each kinematic pair, reduces the service life of each part, and has large maintenance engineering amount and large pollution. Severe oil leakage will cause the gearbox to fail to work properly. Statistics show that the gear box failure rate caused by poor lubrication of the gear box due to oil leakage exceeds 82%. At present, the common means for solving the problem of oil leakage of the gear box is to plug leakage points by various adhesives, but the effect is not ideal. Meanwhile, once the adhesive for plugging the leakage point enters the lubricant, the friction surface is damaged.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a long-term self-sealing composite solid lubricant for a gearbox in all seasons, which overcomes the defects that: in the prior art, no lubricant specially applied to the gear box is used, so that oil leakage is serious, the service life of each part is shortened, the maintenance engineering quantity is large, and the pollution of underground water resources is large; 2: the leakage points are blocked by using various conventional adhesives, but the effect is not ideal; 3: the existing adhesive for plugging the leakage point can damage the friction surface once entering the lubricant.
In order to solve the technical problem, the technical scheme of the invention is as follows: a full-season long-acting self-sealing composite solid lubricant for a gear box is prepared from base oil, a thickening agent, an antioxidant, a tackifier and a composite solid lubricating material, wherein the composite solid lubricating material consists of flaky graphite, colloidal molybdenum disulfide, polytetrafluoroethylene and yellow lead oxide, and the weight percentage of each component is as follows: 10-40% of a thickening agent, 0.2-1.6% of an antioxidant, 4-12% of a tackifier, 8-25% of flake graphite, 0.5-5% of colloidal molybdenum disulfide, 0.5-2% of polytetrafluoroethylene, 0.5-2% of yellow lead oxide and the balance of base oil.
Preferably, the weight percentage of each component is as follows: 15-35% of a thickening agent, 0.5-1.2% of an antioxidant, 5-10% of a tackifier, 10-20% of flake graphite, 1-3% of colloidal molybdenum disulfide, 0.5-1.5% of polytetrafluoroethylene, 0.5-1.5% of yellow lead oxide and the balance of base oil.
Preferably, the weight percentage of each component is as follows: 30% of thickening agent, 1% of antioxidant, 8% of tackifier, 15% of flaky graphite, 2% of colloidal molybdenum disulfide, 1% of polytetrafluoroethylene, 1.2% of yellow lead oxide and the balance of base oil.
Preferably, the thickener is lithium stearate soap, wherein the antioxidant is diamyl dithiocarbamate, wherein the tackifier is bisphenol F diglycidyl ether, wherein the base oil is polyether.
Preferably, the thickener lithium stearate soap is 12-hydroxystearic acid lithium soap, and the antioxidant diamyl dithiocarbamate comprises antimony diamyl dithiocarbamate and bismuth dibutyl dithiocarbamate, wherein the mass ratio of the antimony diamyl dithiocarbamate to the bismuth dibutyl dithiocarbamate is 40: 60.
Preferably, the particle size of the flaky graphite in the composite solid lubricating material is 87 micrometers, 60 micrometers and 48 micrometers, wherein the mass ratio of the flaky graphite with the particle size of 87 micrometers, 60 micrometers and 48 micrometers is 1: 1: 1, the granularity of the colloidal molybdenum disulfide is 1-10 microns, wherein the granularity of polytetrafluoroethylene is less than 40 microns, and the granularity of yellow lead oxide is 2-10 microns.
Compared with the prior art, the invention has the advantages that:
(1) the invention provides a whole-season long-acting self-sealing composite solid lubricant for a gear box, aiming at solving the problem of oil leakage pollution of the gear box in the industries of mines, ports, wind power new energy, metallurgy, general machinery and the like, solving the oil leakage pollution phenomenon of the gear box in a self-sealing mode, improving the performance of the lubricant for the gear box in a harsh environment, realizing the whole-grade long-acting lubrication of the gear box, reducing the maintenance workload of the gear box, prolonging the service life of the gear box and controlling the lubricating oil pollution of the gear box to the maximum extent;
(2) the method comprises the steps of taking polyether as base oil, taking 12-lithium hydroxystearate soap as a thickening agent, taking bisphenol F diglycidyl ether as a tackifier, distributing a composite solid lubricating material consisting of flaky graphite, colloidal molybdenum disulfide, polytetrafluoroethylene and yellow lead oxide in the base oil, adding antioxidant dipentyl dithiocarbamate to form a semi-fluid self-sealing composite solid lubricating agent, and realizing the automatic plugging function of oil leakage gaps of a gearbox by the interaction of the tackifier bisphenol F diglycidyl ether and the composite solid lubricating material and the regulation and control of viscosity by the 12-lithium hydroxystearate soap; meanwhile, the base oil, the lithium stearate soap and the composite solid lubricating material realize a synergistic effect, so that the self-sealing composite solid lubricating agent has extremely strong adhesiveness on the surfaces of the gear and the bearing, and has good performance and bearing capacity, thereby realizing the long-term self-sealing of the gear box in all seasons and providing effective lubrication;
(3) the lubricant has the advantages of reasonable component compatibility, good self-sealing effect, no worry that the adhesive for plugging the leakage point enters the lubricant to damage the friction surface when in use, simple preparation method, easy production and mild reaction conditions.
Detailed Description
The following describes embodiments of the present invention with reference to examples:
it should be noted that the structures, proportions, sizes, and other elements shown in the specification are included for the purpose of understanding and reading only, and are not intended to limit the scope of the invention, which is defined by the claims, and any modifications of the structures, changes in the proportions and adjustments of the sizes, without affecting the efficacy and attainment of the same.
In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
Example 1
The invention discloses a full-season long-acting self-sealing composite solid lubricant for a gear box, which is prepared from base oil, a thickening agent, an antioxidant, a tackifier and a composite solid lubricating material, wherein the composite solid lubricating material consists of flaky graphite, colloidal molybdenum disulfide, polytetrafluoroethylene and yellow lead oxide, and the weight percentage of each component is as follows: 10-40% of a thickening agent, 0.2-1.6% of an antioxidant, 4-12% of a tackifier, 8-25% of flake graphite, 0.5-5% of colloidal molybdenum disulfide, 0.5-2% of polytetrafluoroethylene, 0.5-2% of yellow lead oxide and the balance of base oil.
Example 2
The invention discloses a full-season long-acting self-sealing composite solid lubricant for a gear box, which is prepared from base oil, a thickening agent, an antioxidant, a tackifier and a composite solid lubricating material, wherein the composite solid lubricating material consists of flaky graphite, colloidal molybdenum disulfide, polytetrafluoroethylene and yellow lead oxide, and the weight percentage of each component is as follows: 10-40% of a thickening agent, 0.2-1.6% of an antioxidant, 4-12% of a tackifier, 8-25% of flake graphite, 0.5-5% of colloidal molybdenum disulfide, 0.5-2% of polytetrafluoroethylene, 0.5-2% of yellow lead oxide and the balance of base oil.
Preferably, the weight percentage of each component is as follows: 15-35% of a thickening agent, 0.5-1.2% of an antioxidant, 5-10% of a tackifier, 10-20% of flake graphite, 1-3% of colloidal molybdenum disulfide, 0.5-1.5% of polytetrafluoroethylene, 0.5-1.5% of yellow lead oxide and the balance of base oil.
Example 3
The invention discloses a full-season long-acting self-sealing composite solid lubricant for a gear box, which is prepared from base oil, a thickening agent, an antioxidant, a tackifier and a composite solid lubricating material, wherein the composite solid lubricating material consists of flaky graphite, colloidal molybdenum disulfide, polytetrafluoroethylene and yellow lead oxide, and the weight percentage of each component is as follows: 10-40% of a thickening agent, 0.2-1.6% of an antioxidant, 4-12% of a tackifier, 8-25% of flake graphite, 0.5-5% of colloidal molybdenum disulfide, 0.5-2% of polytetrafluoroethylene, 0.5-2% of yellow lead oxide and the balance of base oil.
Preferably, the weight percentage of each component is as follows: 15-35% of a thickening agent, 0.5-1.2% of an antioxidant, 5-10% of a tackifier, 10-20% of flake graphite, 1-3% of colloidal molybdenum disulfide, 0.5-1.5% of polytetrafluoroethylene, 0.5-1.5% of yellow lead oxide and the balance of base oil.
Preferably, the weight percentage of each component is as follows: 30% of thickening agent, 1% of antioxidant, 8% of tackifier, 15% of flaky graphite, 2% of colloidal molybdenum disulfide, 1% of polytetrafluoroethylene, 1.2% of yellow lead oxide and the balance of base oil.
Example 4
The invention discloses a full-season long-acting self-sealing composite solid lubricant for a gear box, which is prepared from base oil, a thickening agent, an antioxidant, a tackifier and a composite solid lubricating material, wherein the composite solid lubricating material consists of flaky graphite, colloidal molybdenum disulfide, polytetrafluoroethylene and yellow lead oxide, and the weight percentage of each component is as follows: 10-40% of a thickening agent, 0.2-1.6% of an antioxidant, 4-12% of a tackifier, 8-25% of flake graphite, 0.5-5% of colloidal molybdenum disulfide, 0.5-2% of polytetrafluoroethylene, 0.5-2% of yellow lead oxide and the balance of base oil.
Preferably, the weight percentage of each component is as follows: 15-35% of a thickening agent, 0.5-1.2% of an antioxidant, 5-10% of a tackifier, 10-20% of flake graphite, 1-3% of colloidal molybdenum disulfide, 0.5-1.5% of polytetrafluoroethylene, 0.5-1.5% of yellow lead oxide and the balance of base oil.
Preferably, the weight percentage of each component is as follows: 30% of thickening agent, 1% of antioxidant, 8% of tackifier, 15% of flaky graphite, 2% of colloidal molybdenum disulfide, 1% of polytetrafluoroethylene, 1.2% of yellow lead oxide and the balance of base oil.
Preferably, the thickener is lithium stearate soap, wherein the antioxidant is diamyl dithiocarbamate, wherein the tackifier is bisphenol F diglycidyl ether, wherein the base oil is polyether.
Preferably, the thickener lithium stearate soap is 12-hydroxystearic acid lithium soap, and the antioxidant diamyl dithiocarbamate comprises antimony diamyl dithiocarbamate and bismuth dibutyl dithiocarbamate, wherein the mass ratio of the antimony diamyl dithiocarbamate to the bismuth dibutyl dithiocarbamate is 40: 60.
Example 5
The invention discloses a full-season long-acting self-sealing composite solid lubricant for a gear box, which is prepared from base oil, a thickening agent, an antioxidant, a tackifier and a composite solid lubricating material, wherein the composite solid lubricating material consists of flaky graphite, colloidal molybdenum disulfide, polytetrafluoroethylene and yellow lead oxide, and the weight percentage of each component is as follows: 10-40% of a thickening agent, 0.2-1.6% of an antioxidant, 4-12% of a tackifier, 8-25% of flake graphite, 0.5-5% of colloidal molybdenum disulfide, 0.5-2% of polytetrafluoroethylene, 0.5-2% of yellow lead oxide and the balance of base oil.
Preferably, the weight percentage of each component is as follows: 15-35% of a thickening agent, 0.5-1.2% of an antioxidant, 5-10% of a tackifier, 10-20% of flake graphite, 1-3% of colloidal molybdenum disulfide, 0.5-1.5% of polytetrafluoroethylene, 0.5-1.5% of yellow lead oxide and the balance of base oil.
Preferably, the weight percentage of each component is as follows: 30% of thickening agent, 1% of antioxidant, 8% of tackifier, 15% of flaky graphite, 2% of colloidal molybdenum disulfide, 1% of polytetrafluoroethylene, 1.2% of yellow lead oxide and the balance of base oil.
Preferably, the thickener is lithium stearate soap, wherein the antioxidant is diamyl dithiocarbamate, wherein the tackifier is bisphenol F diglycidyl ether, wherein the base oil is polyether.
Preferably, the thickener lithium stearate soap is 12-hydroxystearic acid lithium soap, and the antioxidant diamyl dithiocarbamate comprises antimony diamyl dithiocarbamate and bismuth dibutyl dithiocarbamate, wherein the mass ratio of the antimony diamyl dithiocarbamate to the bismuth dibutyl dithiocarbamate is 40: 60.
Preferably, the particle size of the flaky graphite in the composite solid lubricating material is 87 micrometers, 60 micrometers and 48 micrometers, wherein the mass ratio of the flaky graphite with the particle size of 87 micrometers, 60 micrometers and 48 micrometers is 1: 1: 1, the granularity of the colloidal molybdenum disulfide is 1-10 microns, wherein the granularity of polytetrafluoroethylene is less than 40 microns, and the granularity of yellow lead oxide is 2-10 microns.
Example 6
According to the weight percentage, 10kg of lubricant is required to be prepared, 25 percent of 12-hydroxystearic acid lithium soap, 0.4 percent of antimony diamyl dithiocarbamate, 0.6 percent of bismuth dibutyl dithiocarbamate, 12 percent of bisphenol F diglycidyl ether, 10 percent of flaky graphite, 1.5 percent of colloidal molybdenum disulfide, 1.5 percent of polytetrafluoroethylene, 1.5 percent of yellow lead oxide and the balance of Polyether (PAG) base oil are weighed.
Example 7
According to the weight percentage, 10kg of lubricant is required to be prepared, 20 percent of 12-hydroxystearic acid lithium soap, 0.2 percent of antimony diamyl dithiocarbamate, 0.3 percent of bismuth dibutyl dithiocarbamate, 10 percent of bisphenol F diglycidyl ether, 16 percent of flaky graphite, 1.0 percent of colloidal molybdenum disulfide, 1.2 percent of polytetrafluoroethylene, 12 percent of yellow lead oxide and the balance of Polyether (PAG) base oil are weighed.
Example 8
According to the weight percentage, 10kg of lubricant is required to be prepared, 10 percent of 12-hydroxystearic acid lithium soap, 0.08 percent of antimony diamyl dithiocarbamate, 0.12 percent of bismuth dibutyl dithiocarbamate, 4 percent of bisphenol F diglycidyl ether, 8 percent of flaky graphite, 0.5 percent of colloidal molybdenum disulfide, 0.5 percent of polytetrafluoroethylene, 0.5 percent of yellow lead oxide and the balance of Polyether (PAG) base oil are weighed.
Example 9
According to the weight percentage, 10kg of lubricant is required to be prepared, 40% of 12-hydroxystearic acid lithium soap, 0.64% of diamyl dithiocarbamic acid antimony, 0.96% of dibutyl dithiocarbamic acid bismuth, 10% of bisphenol F diglycidyl ether, 25% of flaky graphite, 5% of colloidal molybdenum disulfide, 2% of polytetrafluoroethylene, 2% of yellow lead oxide and the balance of Polyether (PAG) base oil are weighed.
Example 10
According to the weight percentage, 10kg of lubricant is required to be prepared, 15 percent of 12-hydroxystearic acid lithium soap, 0.48 percent of antimony diamyl dithiocarbamate, 0.72 percent of bismuth dibutyldithiocarbamate, 5 percent of bisphenol F diglycidyl ether, 20 percent of flaky graphite, 3 percent of colloidal molybdenum disulfide, 1.5 percent of polytetrafluoroethylene, 1.5 percent of yellow lead oxide and the balance of Polyether (PAG) base oil are weighed.
Example 11
According to the weight percentage, 10kg of lubricant is required to be prepared, 35 percent of 12-hydroxystearic acid lithium soap, 0.4 percent of antimony diamyl dithiocarbamate, 0.6 percent of bismuth dibutyldithiocarbamate, 6 percent of bisphenol F diglycidyl ether, 10 percent of flake graphite, 1 percent of colloidal molybdenum disulfide, 0.5 percent of polytetrafluoroethylene, 0.5 percent of yellow lead oxide and the balance of Polyether (PAG) base oil are weighed.
Example 12
According to the weight percentage, 10kg of lubricant is required to be prepared, 30 percent of 12-hydroxystearic acid lithium soap, 0.4 percent of antimony diamyl dithiocarbamate, 0.6 percent of bismuth dibutyldithiocarbamate, 8 percent of bisphenol F diglycidyl ether, 15 percent of flaky graphite, 2 percent of colloidal molybdenum disulfide, 1 percent of polytetrafluoroethylene, 1.2 percent of yellow lead oxide and the balance of Polyether (PAG) base oil are weighed.
In examples 6 to 12, the flaky graphite particles had particle sizes of 87 micrometers, 60 micrometers, and 48 micrometers, and the mass ratio of the flaky graphite particles was 1: 1: 1, the granularity of colloidal molybdenum disulfide is 1-10 microns, the granularity of polytetrafluoroethylene powder is less than 40 microns, and the granularity of yellow lead oxide is 2-10 microns.
The invention takes Polyether (PAG) as base oil, 12-lithium hydroxystearate soap as a thickening agent and bisphenol F diglycidyl ether (BPF) as a tackifier, and distributes a composite solid lubricating material consisting of flaky graphite, colloidal molybdenum disulfide powder, polytetrafluoroethylene powder and yellow lead oxide powder in the base oil, and adds antioxidant dipentyl dithiocarbamic acid methyl salt to form a semi-fluid self-sealing composite solid lubricating agent. The main technical indexes of the self-sealing composite solid lubricants in examples 6 to 12 are shown in table 1.
TABLE 1 indexes of self-sealing composite solid lubricants of examples 6 to 12
As shown in Table 1, the self-sealing composite solid lubricant disclosed by the invention is a gray black sticky body, the kinematic viscosity is 40 ℃, the density is 2/S, the critical load is more than or equal to 800N, the sintering load is more than or equal to 6200, and the diameter of a grinding spot is less than or equal to 0.40 mm.
The principle of the invention is as follows:
the method comprises the steps of taking polyether as base oil, taking 12-lithium hydroxystearate soap as a thickening agent, taking bisphenol F diglycidyl ether as a tackifier, distributing a composite solid lubricating material consisting of flaky graphite, colloidal molybdenum disulfide, polytetrafluoroethylene and yellow lead oxide in the base oil, adding antioxidant dipentyl dithiocarbamate to form a semi-fluid self-sealing composite solid lubricating agent, and realizing the automatic plugging function of oil leakage gaps of a gearbox by the interaction of the tackifier bisphenol F diglycidyl ether and the composite solid lubricating material and the regulation and control of viscosity by the 12-lithium hydroxystearate soap; meanwhile, the base oil, the lithium stearate soap and the composite solid lubricating material realize a synergistic effect, so that the self-sealing composite solid lubricating agent has extremely strong adhesiveness on the surfaces of the gear and the bearing, and has good performance and bearing capacity, thereby realizing the long-term self-sealing of the gear box in all seasons and providing effective lubrication.
The invention provides a whole-season long-acting self-sealing composite solid lubricant for a gear box, aiming at solving the problem of oil leakage pollution of the gear box in the industries of mines, ports, wind power new energy, metallurgy, general machinery and the like, solving the oil leakage pollution phenomenon of the gear box in a self-sealing mode, improving the performance of the lubricant for the gear box in a harsh environment, realizing the whole-stage long-acting lubrication of the gear box, reducing the maintenance workload of the gear box, prolonging the service life of the gear box and controlling the lubricating oil pollution of the gear box to the maximum extent.
The lubricant has the advantages of reasonable component compatibility, good self-sealing effect, no worry that the adhesive for plugging the leakage point enters the lubricant to damage the friction surface when in use, simple preparation method, easy production and mild reaction conditions.
While the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Many other changes and modifications can be made without departing from the spirit and scope of the invention. It is to be understood that the invention is not to be limited to the specific embodiments, but only by the scope of the appended claims.
Claims (6)
1. The utility model provides a long-term self sealss compound solid lubricant of gearbox quarterly which characterized in that: the lubricating grease is prepared from base oil, a thickening agent, an antioxidant, a tackifier and a composite solid lubricating material, wherein the composite solid lubricating material consists of flaky graphite, colloidal molybdenum disulfide, polytetrafluoroethylene and yellow lead oxide, and the weight percentage of each component is as follows: 10-40% of a thickening agent, 0.2-1.6% of an antioxidant, 4-12% of a tackifier, 8-25% of flake graphite, 0.5-5% of colloidal molybdenum disulfide, 0.5-2% of polytetrafluoroethylene, 0.5-2% of yellow lead oxide and the balance of base oil.
2. The gearbox all-season long-acting self-sealing composite solid lubricant as claimed in claim 1, wherein: the weight percentage of each component is as follows: 15-35% of a thickening agent, 0.5-1.2% of an antioxidant, 5-10% of a tackifier, 10-20% of flake graphite, 1-3% of colloidal molybdenum disulfide, 0.5-1.5% of polytetrafluoroethylene, 0.5-1.5% of yellow lead oxide and the balance of base oil.
3. The gearbox all-season long-acting self-sealing composite solid lubricant as claimed in claim 2, wherein: the weight percentage of each component is as follows: 30% of thickening agent, 1% of antioxidant, 8% of tackifier, 15% of flaky graphite, 2% of colloidal molybdenum disulfide, 1% of polytetrafluoroethylene, 1.2% of yellow lead oxide and the balance of base oil.
4. The gearbox all-season long-acting self-sealing composite solid lubricant as claimed in claim 2, wherein: the thickening agent is lithium stearate soap, the antioxidant is diamyl dithiocarbamate, the tackifier is bisphenol F diglycidyl ether, and the base oil is polyether.
5. The gearbox all-season long-acting self-sealing composite solid lubricant as claimed in claim 4, wherein: the thickening agent lithium stearate soap is 12-hydroxystearic acid lithium soap, the antioxidant dipentyl dithiocarbamate comprises antimony diamyl dithiocarbamate and bismuth dibutyldithiocarbamate, and the mass ratio of the antimony diamyl dithiocarbamate to the bismuth dibutyldithiocarbamate is 40: 60.
6. The gearbox all-season long-acting self-sealing composite solid lubricant as claimed in claim 1, wherein: the particle size of the flaky graphite in the composite solid lubricating material is 87 micrometers, 60 micrometers and 48 micrometers, wherein the mass ratio of the flaky graphite with the particle size of 87 micrometers, 60 micrometers and 48 micrometers is 1: 1: 1, the granularity of the colloidal molybdenum disulfide is 1-10 microns, wherein the granularity of polytetrafluoroethylene is less than 40 microns, and the granularity of yellow lead oxide is 2-10 microns.
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| CN201911184066.XA CN111004664A (en) | 2019-11-27 | 2019-11-27 | All-season long-acting self-sealing composite solid lubricant for gear box |
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