CN104450092A - Special lubricating oil for gear with antirust performance - Google Patents

Abstract

The invention relates to special lubricating oil for a gear with antirust performance. The special lubricating oil comprises the following components in parts by mass: 50-70 parts of 650SN base oil, 15-25 parts of 150BS base oil, 3-6 parts of polyvinyl ether, 4-8 parts of calcium alkylbenzene sulfonate, 3-7 parts of ethylene-propylene copolymer, 1-4 parts of sodium sulfite, 4-6 parts of sodium dodecyl benzene sulfonate, 2-6 parts of methyl benzoate, 0.7-2.5 parts of complex antioxidant, 2-4 parts of triethanolamine, 0.2-1.5 parts of anti-wear reagent at extreme pressure, 1.0-3.5 parts of metal deactivator, 3.5-6.5 parts of clearing agent, 1.8-3.0 parts of ashless dispersant and 3.0-4.5 parts of antirust agent. The lubricating oil has excellent wearing quality, can bear high temperature generated by high-speed rotation and engagement of the gear, has excellent cooling property and is extremely high in extreme pressure resistance and suitable for engines and large machinery.

Description

A kind of gear special lube of rustless property

Technical field

The present invention relates to a kind of lubricating oil, be specifically related to a kind of gear special lube of rustless property.

Background technology

Gear oil is based on petroleum oil base oil or ucon oil, adds a kind of important lubricating oil of anti-wear agent and oiliness improver modulation.For various wheel gearing, to prevent tooth surface abrasion, scratch, sintering etc., extend its work-ing life, improve transmitted power efficiency.Gear oil should have good wear-resistant, withstand load performance and suitable viscosity.Because gear loading is general all more than 490 MPas (MPa), and hyperbolic line flank of tooth load is more up to 2942MPa, for preventing rupture of oil film from causing tooth surface abrasion and scratch, often adds anti-wear agent in gear oil, but to appoint be not very desirable to abrasion resistance.

Summary of the invention

For the problems referred to above that prior art exists, the object of the invention is: provide one to have good resistance to abrasion, and high-speed gear rotation can be born, the lubricating oil of the high temperature that engagement produces.

For achieving the above object, the present invention adopts following technical scheme: a kind of gear special lube of rustless property, it is characterized in that: the component comprising following mass fraction: 650SN base oil 50-70 part, 150BS base oil 15-25 part, polyvinyl ether 3-6 part, alkyl benzene calcium sulfonate 4-8 part, ethylene-propylene copolymer 3-7 part, S-WAT 1-4 part, Sodium dodecylbenzene sulfonate 4-6 part, methyl benzoate 2-6 part, composite antioxidant 0.7-2.5 part, trolamine 2-4 part, extreme pressure anti-wear additives 0.2-1.5 part, metal passivator 1.0-3.5 part, described metal passivator is for containing benzotriazole or thiadiazoles, purification agent 3.5-6.5 part, described purification agent is made up of the low alkali calcium sulphonate of 1.5-3.0 part and the high-alkali calcium sulfenyl phenolate of 2.0-3.5 part, ashless dispersant 1.8-3.0 part, ashless dispersant is two fourth two phthalimides, rust-preventive agent 3.0-4.5 part.

Calcium sulphonate, calcium sulfenyl phenolate are all the high temperature purification agents being widely used in diesel engine oil, they are all the surfactants containing hydrophilic, oleophylic and polar group, after they are dissolved in oil with micella state, can make original in oil undissolvable material one by one sedimental predecessor bag be dissolved in micella center, stop their further oxidative condensations to become paint film and carbon deposit, thus play solublization.In the calcium carbonate particles energy produced by overbased technology and disintegration of lubricating oil and sulfide that the acidic substance that produce and fuel produce, prevent deep oxidation and sulfurization.

Fourth two phthalimide is the ashless dispersant that low temperature dispersive ability is very strong, and it has very strong solubilising to the intermediate product of machine oil decay, but because of its critical micelle dispersion temperature slightly low, therefore high temperature detergency is slightly poor.The dispersion agent that the present invention uses is two fourths two phthalimide of domestic hot adduction explained hereafter, has good high temperature detergent performance.

The carbon deposit that polar group contained in purification agent and dispersion agent has generated by Van der Waals force or adsorption by hydrogen bond and the good particulate of cigarette are also stably dispersed in oil, stop the gathering of these particulates, deposition, play and suppress engine oil viscosity to increase and alleviate the effect of wearing and tearing.

As optimization, described composite antioxidant is made up of the alkylated diphenylamine oxidation inhibitor of 0.5-1.5 part and the thiophenols ester type oxidation inhibitor of 0.2-1.0 part;

The structural formula of described alkylated diphenylamine oxidation inhibitor is:

Wherein R ¹, R ²be H or C separately ₁-C ₁₂alkyl;

The structural formula of described thiophenols ester type oxidation inhibitor is:

Wherein R ³, R ⁴be H or C separately ₁-C ₁₂alkyl, m, n are 0,1 or 2.Add the composite antioxidant be made up of zinc dialkyl dithiophosphate and dialkyl diphenylamine, enhance the anti-oxidant rotten ability of lubricating oil, by absorbing the form of free radical Sum decomposition superoxide, blocking mixture degradation process, thus playing the effect improving Working Life of Lubricating Oil.This composite antioxidant can be prepared by following method: alkylated diphenylamine oxidation inhibitor and thiophenols ester type oxidation inhibitor ratio are on demand added to and are in harmonious proportion in container, be heated to 60-90 DEG C, stir 1-2 hour and get final product under normal pressure.

Relative to prior art, tool of the present invention has the following advantages: lubricating oil of the present invention has good resistance to abrasion, and can bear high-speed gear rotation, the high temperature that engagement produces, have good cooling, anti-extreme pressure is very capable simultaneously, be suitable for engine, big machinery.

Embodiment

Below the present invention is described in further detail.

Embodiment 1: a kind of gear special lube of rustless property, comprise 650SN base oil 50 parts, 150BS base oil 15 parts, polyvinyl ether 3 parts, alkyl benzene calcium sulfonate 4 parts, ethylene-propylene copolymer 3 parts, S-WAT 1 part, Sodium dodecylbenzene sulfonate 4 parts, methyl benzoate 2 parts, composite antioxidant 0.7 part (composite antioxidant is made up of the alkylated diphenylamine oxidation inhibitor of 0.5 part and the thiophenols ester type oxidation inhibitor of 0. 2 parts), trolamine 2 parts, extreme pressure anti-wear additives 0.2 part, metal passivator 1.0 parts (containing benzotriazole), purification agent 3.5 parts, (being made up of the low alkali calcium sulphonate of 1.5 parts and the high-alkali calcium sulfenyl phenolate of 2.0 parts), ashless dispersant 1.8 parts, rust-preventive agent 3.0 parts.

Embodiment 2: a kind of gear special lube of rustless property, comprise 650SN base oil 60 parts, 250BS base oil 10 parts, polyvinyl ether 5 parts, alkyl benzene calcium sulfonate 6 parts, ethylene-propylene copolymer 5 parts, S-WAT 3 parts, Sodium dodecylbenzene sulfonate 5 parts, , methyl benzoate 4 parts, composite antioxidant 2.0 parts (composite antioxidant is made up of the alkylated diphenylamine oxidation inhibitor of 1.2 parts and the thiophenols ester type oxidation inhibitor of 0.8 part), trolamine 3 parts, extreme pressure anti-wear additives 1.0 parts, metal passivator 2.0 parts (containing benzotriazole), purification agent 4.0 parts, (being made up of the low alkali calcium sulphonate of 2.0 parts and the high-alkali calcium sulfenyl phenolate of 2.0 parts), ashless dispersant 2.0 parts, rust-preventive agent 3.5 parts.

Embodiment 3: a kind of gear special lube of rustless property, comprise 650SN base oil 65 parts, 250BS base oil 18 parts, polyvinyl ether 5 parts, alkyl benzene calcium sulfonate 7 parts, ethylene-propylene copolymer 8 parts, S-WAT 2 parts, Sodium dodecylbenzene sulfonate 3.5 parts, methyl benzoate 5 parts, composite antioxidant 2.0 parts (composite antioxidant is made up of the alkylated diphenylamine oxidation inhibitor of 1.5 parts and the thiophenols ester type oxidation inhibitor of 0.5 part), trolamine 3.5 parts, dispersion agent 2.5 parts, extreme pressure anti-wear additives 1.2 parts, metal passivator 2.5 parts (containing thiadiazoles), purification agent 5.0 parts, (being made up of the low alkali calcium sulphonate of 2.5 parts and the high-alkali calcium sulfenyl phenolate of 2.5 parts), ashless dispersant 2.5 parts, rust-preventive agent 4.0 parts.

Embodiment 4: a kind of gear special lube of rustless property, comprise 650SN base oil 70 parts, 250BS base oil 15 parts, polyvinyl ether 6 parts, alkyl benzene calcium sulfonate 8 parts, ethylene-propylene copolymer 7 parts, S-WAT 4 parts, Sodium dodecylbenzene sulfonate 6 parts, methyl benzoate 6 parts, composite antioxidant 2.0 parts (composite antioxidant is made up of the alkylated diphenylamine oxidation inhibitor of 1.8 parts and the thiophenols ester type oxidation inhibitor of 0.7 part) trolamine 4 parts, dispersion agent 3 parts, extreme pressure anti-wear additives 1.5 parts, metal passivator 3.5 parts (thiadiazoles), purification agent 6.5 parts, (being made up of the low alkali calcium sulphonate of 3.0 parts and the high-alkali calcium sulfenyl phenolate of 3.5 parts), ashless dispersant 3.0 parts, rust-preventive agent 4.5 parts.

What finally illustrate is, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.

Claims (2)

1. the gear special lube of a rustless property, it is characterized in that: the component comprising following mass fraction: 650SN base oil 50-70 part, 150BS base oil 15-25 part, polyvinyl ether 3-6 part, alkyl benzene calcium sulfonate 4-8 part, ethylene-propylene copolymer 3-7 part, S-WAT 1-4 part, Sodium dodecylbenzene sulfonate 4-6 part, methyl benzoate 2-6 part, composite antioxidant 0.7-2.5 part, trolamine 2-4 part, extreme pressure anti-wear additives 0.2-1.5 part, metal passivator 1.0-3.5 part, described metal passivator is for containing benzotriazole or thiadiazoles, purification agent 3.5-6.5 part, described purification agent is made up of the low alkali calcium sulphonate of 1.5-3.0 part and the high-alkali calcium sulfenyl phenolate of 2.0-3.5 part, ashless dispersant 1.8-3.0 part, ashless dispersant is two fourth two phthalimides, rust-preventive agent 3.0-4.5 part.

2. the gear special lube of rustless property as claimed in claim 1, is characterized in that: described composite antioxidant is made up of the alkylated diphenylamine oxidation inhibitor of 0.5-1.5 part and the thiophenols ester type oxidation inhibitor of 0. 2-1.0 part;

The structural formula of described alkylated diphenylamine oxidation inhibitor is:

Wherein R ¹, R ²be H or C separately ₁-C ₁₂alkyl;

The structural formula of described thiophenols ester type oxidation inhibitor is:

Wherein R ³, R ⁴be H or C separately ₁-C ₁₂alkyl, m, n are 0,1 or 2.