阅读说明：本技术 一种农机润滑油及其制备方法 (Agricultural machinery lubricating oil and preparation method thereof ) 是由 李润林 朱玉德 张玉兰 于 2019-09-10 设计创作，主要内容包括：本发明公开了一种农机润滑油及其制备方法,属于农业机械技术领域。本发明的农机润滑油由以下原料组成：石墨烯、蜂胶提取物、十二硫醇、环氧大豆油、十二烷二酸、硬脂酸镁、木质素硫酸钠、酒石酸钾钠、椰油酸二乙醇酰胺。本发明中石墨烯具有杂化轨道,十二硫醇中的部分氢键与杂化轨道向结合,形成更加牢固的杂化轨道,制备而成的润滑油的构造成分更加稳定。本发明的润滑油应用在气缸上和活塞上均未发现磨损情况,而普通润滑油应用在气缸上则或多或少的会发现有肉眼可以看见的磨损情况,本发明的润滑油油耗量较少,仅为4.6～5.0L/100km。(The invention discloses an agricultural machinery lubricating oil and a preparation method thereof, and belongs to the technical field of agricultural machinery. The agricultural machinery lubricating oil disclosed by the invention consists of the following raw materials: graphene, propolis extract, dodecyl mercaptan, epoxidized soybean oil, dodecanedioic acid, magnesium stearate, sodium lignin sulfate, sodium potassium tartrate and coconut diethanolamide. According to the invention, the graphene has a hybrid orbit, part of hydrogen bonds in the dodecanethiol are combined with the hybrid orbit in an axial direction to form a firmer hybrid orbit, and the prepared lubricating oil has more stable structural components. The lubricating oil applied to the cylinder and the piston does not have abrasion, while the common lubricating oil applied to the cylinder has more or less abrasion which can be seen by naked eyes, and the oil consumption of the lubricating oil is less and is only 4.6-5.0L/100 km.)

1. The agricultural machinery lubricating oil is characterized by comprising the following raw materials in parts by weight: 60-70 parts of graphene, 45-65 parts of propolis extract, 30-40 parts of dodecyl mercaptan, 120-160 parts of epoxidized soybean oil, 1.8-2.0 parts of dodecanedioic acid, 10-13 parts of magnesium stearate, 7-10 parts of sodium lignin sulfate, 7-10 parts of potassium sodium tartrate and 4-6 parts of coconut diethanolamide.

2. The agricultural machinery lubricating oil according to claim 1, which is characterized by comprising the following raw materials in parts by weight: 65 parts of graphene, 55 parts of propolis extract, 35 parts of dodecanethiol, 140 parts of epoxidized soybean oil, 1.9 parts of dodecanedioic acid, 11 parts of magnesium stearate, 8.5 parts of sodium lignin sulfate, 8.5 parts of potassium sodium tartrate and 5 parts of coconut diethanolamide.

3. The method for preparing the agricultural machinery lubricating oil according to claim 1, characterized by comprising the following steps:

1) feeding the propolis extract, magnesium stearate and dodecyl mercaptan into a reaction kettle according to parts by mass, adding deionized water which is 1.4-1.7 times of the mass of the propolis extract at 30-34 ℃, grinding for 20-26 min, stirring for 10-14 min in a clockwise direction at a stirring speed of 70-100 r/min, obtaining a viscous stirring liquid Q after stirring is finished, and storing in another container for later use;

2) adding dodecanedioic acid, the viscous stirring liquid Q and the epoxy soybean oil into high-shear equipment according to the mass ratio of 1.8-2.0: 3.5-5.0: 120-160, and uniformly stirring to obtain a material W for later use; drying the material W, airing the material W in sunlight for 3-8 min, adding the material W into a mixed solution of modified peanut powder and distilled water, heating the material W in a water bath at the ultrasonic frequency of 95-105 KHz at the temperature of 75-80 ℃ for 1-3 h, cooling the material W, taking the material out to obtain a modified material D, and uniformly mixing graphene, sodium lignin sulfate and the modified material D in parts by weight under a high-speed shearing state to obtain a treated matter X for later use;

3) stirring potassium sodium tartrate, coconut diethanolamide and the treated matter X at 40-50 ℃ for 1-2 h to recover to normal temperature, and then blending by using pneumatic pulse for 20-30 hours to obtain the agricultural machinery lubricating oil.

4. The method for preparing an agricultural lubricant according to claim 3, wherein the temperatures in step 1) include 31.5 ℃, 32 ℃, 32.5 ℃ and 33.5 ℃.

5. The preparation method of the agricultural machinery lubricating oil according to claim 3, characterized in that the mass ratio of the modified peanut powder to the distilled water in the step 2) is 20-35: 60-95.

6. The method according to claim 3, wherein the mass of the modified material D in step 3) is different from the mass of the sodium lignin sulfate by 0.06, and the mass of the modified material D is greater than the mass of the sodium lignin sulfate.

Technical Field

The invention belongs to the technical field of agricultural machinery, and particularly relates to agricultural machinery lubricating oil and a preparation method thereof.

Background

The lubricating oil is a liquid or semisolid lubricating agent used on various types of automobiles and mechanical equipment to reduce friction and protect machines and workpieces, and mainly plays roles in lubrication, auxiliary cooling, rust prevention, cleaning, sealing, buffering and the like. The lubricating oil is used between two objects which move relatively, and has the function of reducing the friction and the abrasion caused by the contact of the two objects, namely the lubricating oil.

The basic functions of the lubricant are mainly friction control, wear reduction, cooling and sealing isolation, so that the lubricant generally has the lowest possible friction coefficient, thereby reducing energy consumption; the lubricating oil also has proper viscosity, the viscosity is one of the most important properties for measuring the liquid lubricant, the high-viscosity lubricating oil is easy to form a dynamic pressure oil film with a thicker oil film, the bearing load is large, and the abrasion can be effectively prevented, but the viscosity is too high, namely the internal friction is too high, so that the problems of friction heat increase, temperature rise, poor flowing condition at low temperature and the like can be caused; the lubricating oil has low viscosity, thin oil film, small bearing load and easy abrasion, but has small internal friction and excellent flow condition at low temperature; in addition, the lubricating oil should have good extreme pressure performance, chemical stability, thermal stability, purity and the like.

The literature search of the prior art shows that Chinese patent publication No. CN109943392A, published 2019, 6 and 28 discloses an agricultural machinery lubricating oil and a preparation method thereof, wherein the lubricating oil consists of the following raw materials in parts by mass: 80 parts of engine oil, 5-10 parts of liquid paraffin, 5-8 parts of succinimide, 1-3 parts of zinc dialkyl dithiophosphate, 2-4 parts of calcium salicylate and 2-5 parts of calcium petroleum sulfonate. The lubricating oil of the present invention has poor storage state and lubricating effect under different temperature conditions, and is worn after use.

Disclosure of Invention

The invention aims to provide an agricultural machinery lubricating oil which has a good lubricating effect under variable temperature conditions, particularly under a low temperature state, and reduces the abrasion of parts, and a preparation method thereof.

In order to achieve the purpose, the invention is realized by adopting the following technical scheme.

The agricultural machinery lubricating oil consists of the following raw materials in parts by weight: 60-70 parts of graphene, 45-65 parts of propolis extract, 30-40 parts of dodecyl mercaptan, 120-160 parts of epoxidized soybean oil, 1.8-2.0 parts of dodecanedioic acid, 10-13 parts of magnesium stearate, 7-10 parts of sodium lignin sulfate, 7-10 parts of potassium sodium tartrate and 4-6 parts of coconut diethanolamide.

Further, the agricultural machinery lubricating oil is composed of the following raw materials in parts by weight: 65 parts of graphene, 55 parts of propolis extract, 35 parts of dodecanethiol, 140 parts of epoxidized soybean oil, 1.9 parts of dodecanedioic acid, 11 parts of magnesium stearate, 8.5 parts of sodium lignin sulfate, 8.5 parts of potassium sodium tartrate and 5 parts of coconut diethanolamide.

The preparation method of the agricultural machinery lubricating oil comprises the following steps:

1) feeding the propolis extract, magnesium stearate and dodecyl mercaptan into a reaction kettle according to parts by mass, adding deionized water which is 1.4-1.7 times of the mass of the propolis extract at 30-34 ℃, grinding for 20-26 min, stirring for 10-14 min in a clockwise direction at a stirring speed of 70-100 r/min, obtaining a viscous stirring liquid Q after stirring is finished, and storing in another container for later use;

2) adding dodecanedioic acid, the viscous stirring liquid Q and the epoxy soybean oil into high-shear equipment according to the mass ratio of 1.8-2.0: 3.5-5.0: 120-160, and uniformly stirring to obtain a material W for later use; drying the material W, airing the material W in sunlight for 3-8 min, adding the material W into a mixed solution of modified peanut powder and distilled water, heating the material W in a water bath at the ultrasonic frequency of 95-105 KHz at the temperature of 75-80 ℃ for 1-3 h, cooling the material W, taking the material out to obtain a modified material D, and uniformly mixing graphene, sodium lignin sulfate and the modified material D in parts by weight under a high-speed shearing state to obtain a treated matter X for later use;

3) stirring potassium sodium tartrate, coconut diethanolamide and the treated matter X at 40-50 ℃ for 1-2 h to recover to normal temperature, and then blending for 20-30 min by pneumatic pulse to obtain the agricultural machinery lubricating oil.

Further, the temperature in the step 1) includes 31.5 ℃, 32 ℃, 32.5 ℃ and 33.5 ℃.

Further, the mass ratio of the modified peanut powder to the distilled water in the step 2) is 20-35: 60-95.

Further, the difference between the mass of the modified material D in the step 3) and the mass of the sodium lignin sulfate is 0.06, and the mass of the modified material D is greater than that of the sodium lignin sulfate.

Compared with the prior art, the invention has the beneficial technical effects that:

1) according to the invention, the graphene has a hybrid orbit, part of hydrogen bonds in the dodecanethiol are combined with the hybrid orbit in an axial direction to form a firmer hybrid orbit, and the prepared lubricating oil has more stable structural components.

2) The propolis extract, the magnesium stearate and the epoxidized soybean oil are combined, so that the mixed bacteria pollution of the used part of the lubricating oil can be obviously reduced, the weather resistance is extremely high, and the influence of temperature on the lubricating oil can be reduced.

3) The potassium sodium tartrate in the invention has complexation, can form soluble complex with metal ions such as aluminum, beryllium, cadmium, cobalt, molybdenum, niobium, lead, nickel, palladium, platinum, rhodium, antimony, tin, tantalum, tungsten, zinc, selenium, tellurium and the like in alkaline solution, can play a role in retarding coagulation by combining with sodium lignin sulfate, can increase the heat resistance of lubricating oil and the oxidation resistance of lubricating oil, and can be used for a longer time.

4) The cocoanut oil acid diethanolamide is combined with dodecanedioic acid, so that the cocoanut oil acid diethanolamide has a good lubricating effect at a low temperature, and has high cost performance.

5) The lubricating oil applied to the cylinder and the piston does not have abrasion, while the common lubricating oil applied to the cylinder has more or less abrasion which can be seen by naked eyes, and the oil consumption of the lubricating oil is less and is only 4.6-5.0L/100 km.

Detailed Description

The technical solution of the present invention will be further specifically described below by way of specific examples. It is to be understood that the embodiments of the present invention are not limited to the following embodiments, and that any changes and/or modifications may be made to the present invention within the scope of the present invention.