CN105524687B - A kind of lithium base grease and preparation method thereof for RV retarders - Google Patents

A kind of lithium base grease and preparation method thereof for RV retarders Download PDF

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Publication number
CN105524687B
CN105524687B CN201510988463.8A CN201510988463A CN105524687B CN 105524687 B CN105524687 B CN 105524687B CN 201510988463 A CN201510988463 A CN 201510988463A CN 105524687 B CN105524687 B CN 105524687B
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parts
lithium
retarders
base
lithium base
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CN105524687A (en
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纪红兵
曾晖
刘涛
晏金灿
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Huizhou Research Institute of Sun Yat Sen University
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Huizhou Research Institute of Sun Yat Sen University
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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
    • C10M101/00—Lubricating compositions characterised by the base-material being a mineral or fatty oil
    • C10M101/02—Petroleum fractions
    • 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
    • C10M117/00—Lubricating compositions characterised by the thickener being a non-macromolecular carboxylic acid or salt thereof
    • C10M117/02—Lubricating compositions characterised by the thickener being a non-macromolecular carboxylic acid or salt thereof having only one carboxyl group bound to an acyclic carbon atom, cycloaliphatic carbon atom or hydrogen
    • 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
    • C10M135/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium
    • 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
    • C10M135/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium
    • C10M135/08—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium containing a sulfur-to-oxygen bond
    • C10M135/10—Sulfonic acids or derivatives thereof
    • 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
    • C10M137/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus
    • C10M137/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus having no phosphorus-to-carbon bond
    • C10M137/04—Phosphate esters
    • C10M137/10—Thio derivatives
    • 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
    • C10M159/00—Lubricating compositions characterised by the additive being of unknown or incompletely defined constitution
    • C10M159/12—Reaction products
    • 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
    • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
    • C10M2207/126—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids monocarboxylic
    • C10M2207/1265—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids monocarboxylic used as thickening agent
    • 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
    • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
    • C10M2207/128—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids containing hydroxy groups; Ethers thereof
    • C10M2207/1285—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids containing hydroxy groups; Ethers thereof used as thickening agents
    • 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
    • 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
    • C10M2219/046—Overbasedsulfonic acid salts
    • 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
    • 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
    • C10M2219/10—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring
    • C10M2219/102—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring containing sulfur and carbon only in the ring
    • 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
    • C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
    • C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
    • C10M2223/04—Phosphate esters
    • C10M2223/045—Metal containing thio derivatives
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/04—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2050/00—Form in which the lubricant is applied to the material being lubricated
    • C10N2050/10—Semi-solids; greasy

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  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Lubricants (AREA)

Abstract

The invention discloses a kind of lithium base greases and preparation method thereof for RV retarders, in terms of parts by weight, including following component：80.0-100.0 parts of mineral base oils, 10.0-20.0 parts of lithium base thickening agents, 0.01-10.0 parts of extreme pressure anti-wear additives, 0.01-2.0 parts of antirust agent, 0.01-0.8 portions of detersives, 0.01-1.0 parts of oxidation and corrosion inhibitors and 0.01~1.5 part of oiliness improver.There is preferable antifriction performance and abrasion resistance using lithium base grease prepared by the method for the present invention, and stability is preferable.To reduce the abrasion of the energy consumption and equipment of equipment in the process of running, to reach protection RV retarders, its service life is extended.

Description

A kind of lithium base grease and preparation method thereof for RV retarders
Technical field
The present invention relates to technical field of lubricating grease, specifically, being related to one kind can be used for RV retarder anti-wear and wear-resistant performances Excellent lithium base grease.
Background technology
Lubricating grease is the important component of industrial lubricants, is widely used in the important neck such as electronics, machinery, automobile Domain.Studies have shown that additive has very important significance for promoting PERFORMANCE OF GREASES.The additive studied at present can be divided into Organic additive and inorganic additive two major classes.The advantages of organic additive is good to lubricating grease Miscibility, can be compared It is evenly dispersed in system and plays its effect.As shown in non-patent literature 1,2,2,5- dimercapto-1,3,4-thiadiazoles Derivative has the characteristics that Long carbon chain and polarity are high, is readily adsorbed in friction subtabulation as a kind of complex lithium grease additive Face, in friction process, the element sulphur in molecule occurs chemical reaction with surface of friction pair and forms chemical reaction film, is covered in table Face, to improve the extreme pressure anti-wear of lubricating grease.Anti-wear and wear-resistant performance is most important function in grease applications.Mechanism of Friction Reduction It is one layer of oil film of formation on friction surface, so that dry friction is become the friction of lubricating grease oil film, friction coefficient and resistance drop therewith It is low, so as to improve the friction between interface, abrasion is reduced, metal surface is avoided and stings weldering and tearing abrasion.Actually answering In, for the operating mode for meeting harsh, lubricating grease can pass through special processing to improve its relevant performance, be wanted with meeting its use It asks.Therefore, the hot spot that novel high-performance lubricating grease was always studied in recent years.
As shown in non-patent literature 3, the core component of industrial robot is pivoted arm driving device, and RV retarders are because of its body The features such as product is small, precision is high, long lifespan, it is considered to be the optimum device of industrial robot pivoted arm driving.Industrial robot exists A large amount of application is obtained in world wide, the quality of articulated driving equipment directly affects the precision of industrial robot and reliable Property.Since RV retarders needs are run under extreme pressure, the operating mode to run at high speed for a long time, it requires that RV retarders should have Slide small, smooth running, energy consumption relatively saves, the features such as economy is good, so RV retarders need to have stability with lubricating grease The performance of strong and excellent antifriction antiwear.Commercially available RV retarders lubricating grease rarely has while can have excellent abrasion resistance With excellent antifriction performance, such as No. 00# of certain domestic brand is used for the lubricating grease of RV retarders, has excellent antifriction quality Can, but abrasion resistance is not ideal enough, so as to cause use the lubricating grease for a period of time after, the friction surfaces of RV retarders can be by To serious abrasion, so that the stability and accuracy of retarder are by large effect.For another example external certain brand 00# For the lubricating grease of RV retarders, there is excellent abrasion resistance, but antifriction performance is not ideal enough, needs to do one so as to cause machinery A little idle works are affected to compensate because antifriction performance is poor, while the heat that friction coefficient causes greatly friction to generate is more, in turn Reduce the service life of RV retarders.There are the RV retarders of excellent antifriction performance to use so exploitation has excellent abrasion resistance again Lubricating grease is particularly important.
By domestic and international patent and the access of document, the preferable lubricating grease of some anti-wear and wear-resistant performances, such as patent are found CN103289802A is related to a kind of graphene lubricating grease, and the lubricating grease anti-wear and wear-resistant performance is excellent, but since graphene is mixed It is uniformly poor to close, and utilization rate is low so that the PERFORMANCE OF GREASES is not sufficiently stable.For another example patent CN102796595A is related to a kind of ultrahigh speed Motor bearing lubricating grease, which has good water proofing property, inoxidizability, wear resistance, but the lubricating grease is main For in anti-vibration, shock proof bearing.
It is consulted by domestic and international patent, it is found that the patent for the high-performance antifriction antiwear lubricating grease that can be used for RV retarders compares It is few, and these are used for the lubricating grease of RV retarders, are extremely difficult to the characteristic that anti-wear and wear-resistant performance has both.
Existing technical literature
Non-patent literature
Non-patent literature 1：Wang Qingrui, Wang Junming, Li Weimin, Wang Xiao wave thiadiazoles derivatives are multi-functional as lubricating grease Performance study [J] lubrications of additive and sealing, 2012 (05):13-7+22.
Non-patent literature 2：The type of the pavilions Huang Wen grease additives and application [J] oilman skills, 2007 (06):40- 5.
Non-patent literature 3：Research [D] the Harbin University of Science and Technologys of gold .RV retarder transmission accuracies, 2013.
Invention content
The purpose of the present invention is overcoming the deficiencies of the prior art and provide, a kind of friction coefficient is small, abrasion resistance is good and stablizes The good lithium base grease of property.This product may be equally suitable for other to the requirement of anti-attrition wear resistence in addition to applicable RV retarders In higher industrial equipment.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：
A kind of lithium base grease for RV retarders, in terms of parts by weight, including following component：80.0-100.0 part mine Object base oil, 10.0-20.0 parts of lithium base thickening agents, 0.01-10.0 parts of extreme pressure anti-wear additives, 0.01-2.0 parts of antirust agent, 0.01- 0.8 portion of detersive, 0.01-1.0 parts of oxidation and corrosion inhibitors and 0.01~1.5 part of oiliness improver.
Preferably, the mineral base oil is selected from the hydrofinishing mineral base oil or molten that Viscosity Index is more than or equal to 80 Agent refines one or more mixing in base oil.
Preferably, the lithium base thickening agent in lithium stearate, lithium 12-hydroxy stearate, two lithium of decanedioic acid at least The complex lithium of one kind or in which two kinds of lithium bases.
Preferably, the extreme pressure anti-wear additives are selected from olefine sulfide, sulfide isobutene, dibutyl dithiocaarbamate Molybdenum, phenyl sulfide, D2EHDTPA answer at least one of ester amine salt or the mixture of two of which compound.
Preferably, the antirust agent is selected from barium mahogany sulfonate, dodecenylsuccinic acid, 17 alkenyl imidazoline allyl butyrates At least one of diacid salt, alkenyl succinic acid ester, triethanolamine or their arbitrary two kinds mixtures.
Preferably, the detersive is selected from low alkali value synthesized calcium alkyl benzene sulfonate, high base number linear alkyl benzene synthesizes sulphur Sour calcium, long-chain linear alkyl benzene high base number calcium alkylbenzenesulfonate, high base number synthesis dialkyl benzene sulfonic acids calcium, high base number sulfenyl phenolate At least one of calcium or their arbitrary two kinds mixtures.
Preferably, the oxidation and corrosion inhibitor be selected from the double pungent primary alkyl zinc salts of sulphur phosphorus, the double pungent primary alkyl zinc salts of alkali formula sulphur phosphorus, At least one of the pungent secondary primary alkyl zinc salt of sulphur phosphorus third, sulphur phosphorus brothers alkyl zinc salt, the pungent primary alkyl zinc salt of sulphur phosphorus fourth or they appoint The mixture of two kinds of meaning.
Preferably, the oiliness improver is selected from least one of alkyl-thio-phosphate or benzotriazole octadecylamine salt.
The preparation method of the above-mentioned lithium base grease for RV retarders is：Lithium base thickening agent is added in base oil and is added Extreme pressure anti-wear additives, antirust agent, detersive, oxidation and corrosion inhibitor, oiliness improver is added to after 40~70 DEG C in thermal agitation, continues heating and stirs It mixes to 170~220 DEG C, until solution becomes true solution, stopping heating stirring being cooled to room temperature, and is ground into fat.
Compared with prior art, the present invention has the advantages that：The lithium base grease prepared using the method for the present invention With preferable antifriction performance and abrasion resistance, and stability is preferable.To reduce equipment energy consumption in the process of running and The abrasion of equipment extends its service life to reach protection RV retarders.
Specific implementation mode
The present invention will be further described below by way of examples.
The present invention evaluates the high-performance lithium base grease for RV retarders using following various experimental methods, Wherein antifriction performance assay method (SH/T 0204-94), abrasion resistance assay method (SH/T 0204-94).The survey of cone penetration Method for testing (GB/T269-91).
【Examples 1 to 6】
According to the parts by weight in table 1, the desired amount of mineral base oil, lithium base thickening agent heating stirring to 50 are weighed respectively At DEG C, extreme pressure anti-wear additives, antirust agent, detersive, oxidation and corrosion inhibitor, oiliness improver is added, continues heating stirring to 220 DEG C to solution Become true solution, stop heating, continues stirring and three times with three-roller grinding obtain the lithium for being used for RV retarders to room temperature Base grease.The type and dosage of each component, are specifically shown in Table 1 in lubricating grease.
Wherein base oil is hydrofinishing base oil；Thickening agent is lithium stearate and lithium 12-hydroxy stearate；Extreme pressure is anti- Grinding agent is the mixture of sulfide isobutene and dibutyl dithiocaarbamate molybdenum；Antirust agent is barium mahogany sulfonate；Detersive is The mixture of low alkali value synthesized calcium alkyl benzene sulfonate and high base number linear alkyl benzene calcium alkylbenzenesulfonate；Oxidation and corrosion inhibitor is dialkyl group The mixture of D2EHDTPA zinc and the double pungent primary alkyl zinc salts of sulphur phosphorus；Oiliness improver is benzotriazole octadecylamine salt.
【Embodiment 7】
It is right【Examples 1 to 6】In the wear scar diameter of lubricating grease, friction coefficient, cone penetration tested, and test result is shown in Table 2.
【Comparative example 1~2】
To commercially available 2 kinds of RV retarders lubricating grease (domestic, each 1 of foreign brand name)：Home brands RV retarders moisten Consistent lubricant 1 and foreign brand name RV retarders lubricating grease 2, wear scar diameter, friction coefficient, cone penetration are tested, and test result is shown in Table 2.
Table 1
Table 2

Claims (2)

1. a kind of lithium base grease for RV retarders, it is characterised in that be grouped as by the group of following parts by weight meter：80.0- 100.0 parts of mineral base oils, 10.0-20.0 parts of lithium base thickening agents, 0.01-10.0 parts of extreme pressure anti-wear additives, 0.01-2.0 parts of antirusts Agent, 0.01-0.8 portions of detersives, 0.01-1.0 parts of oxidation and corrosion inhibitors and 0.01~1.5 part of oiliness improver；
The mineral base oil is one or more in hydrofinishing mineral base oil or solvent refining base oil, and viscosity refers to Number is more than or equal to 80；
The lithium base thickening agent is selected from least one of lithium stearate, lithium 12-hydroxy stearate, decanedioic acid lithium or in which two kinds Lithium base it is compound；
The extreme pressure anti-wear additives are selected from olefine sulfide, dibutyl dithiocaarbamate molybdenum, phenyl sulfide, D2EHDTPA and answer ester The mixture of at least one of amine salt or two of which compound；
The antirust agent is selected from barium mahogany sulfonate, dodecenylsuccinic acid, heptadecenyl imidazolidene succinate, allyl butyrate At least one of two acid esters, triethanolamine or their arbitrary two kinds mixtures；
The detersive is selected from low alkali value synthesized calcium alkyl benzene sulfonate, high base number linear alkyl benzene calcium alkylbenzenesulfonate, long chainline type At least one of alkylbenzene high base number calcium alkylbenzenesulfonate, high base number synthesis dialkyl benzene sulfonic acids calcium, SULFURIZED CALCIUM ALKYL PHENATE WITH HIGH BASE NUMBER Or their arbitrary two kinds mixtures；
The oxidation and corrosion inhibitor is selected from the double pungent primary alkyl zinc salts of sulphur phosphorus, alkali formula sulphur phosphorus double pungent primary alkyl zinc salt, sulphur phosphorus brothers alkyl At least one of pungent primary alkyl zinc salt of zinc salt, sulphur phosphorus fourth or their arbitrary two kinds mixtures；
The oiliness improver is selected from least one of alkyl-thio-phosphate or benzotriazole octadecylamine salt.
2. the preparation method described in claim 1 for the lithium base grease of RV retarders, it is characterised in that include the following steps： Lithium base thickening agent is added in mineral base oil heating stirring to extreme pressure anti-wear additives, antirust agent, peace and quiet after 40~70 DEG C, are added Agent, oxidation and corrosion inhibitor, oiliness improver continue heating stirring to 170~220 DEG C, until solution becomes true solution, stopping heating stirring It is cooled to room temperature, is ground into fat.
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CN106497652A (en) * 2016-10-05 2017-03-15 中国石油化工股份有限公司 A kind of robot decelerator lubricant composition and preparation method
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