Lubricant composition for exposed gear

A lubricant composition, open gear technology, applied in the direction of lubricant composition, thickener, additives, etc., to achieve the effect of normal tooth surface temperature, good low temperature fluidity, excellent extreme pressure and anti-wear performance

Inactive Publication Date: 2009-07-01
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A good open gear lubricant should have excellent anti-friction, anti-wear, anti-pitting, anti-extreme pressure properties to protect gears f...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The open gear lubricant composition includes 15% nano calcium carbonate, 6% thickening agent, 0.5% rust inhibitor, and the balance being base oil. Among them, the average particle size of nano calcium carbonate is 78 nanometers, the thickening agent is lithium lauryl stearate, the rust inhibitor is barium dinonylnaphthalene sulfonate, and the base oil is 100°C. The kinematic viscosity is 38mm. 2 / s refined mineral oil.

[0024] The preparation process is: adding 5.84 parts of organic dodecanoic acid to 30 parts of base oil, heating to 95°C to dissolve, dissolving 0.81 parts of lithium hydroxide monohydrate in 2 parts of hot water, and then adding to the above-mentioned containing In the base oil of dodecylhydroxystearic acid, stir the saponification reaction at 100℃ for 8 hours, then add 20 parts of base oil, heat up to 130~140℃, after dehydration, heat up to 210℃, then add 15 parts of nano calcium carbonate And the remaining base oil, cooling and cyclic shearing, when the ...

Embodiment 2

[0028]The open gear lubricant composition includes: nano calcium carbonate 20%, thickener 4%, rust inhibitor 1.0%, and the balance is base oil. Among them, the average particle size of nano calcium carbonate is 120 nanometers, the thickening agent is organic bentonite, the rust inhibitor is dodecenyl succinic acid, and the base oil is 100°C, and the kinematic viscosity is 40 mm. 2 / s of poly a olefin synthetic oil.

[0029] The preparation process is as follows: add 4 parts of organic bentonite and 20 parts of nano calcium carbonate to 75 parts of base oil at room temperature, and use a high-pressure homogenizer to homogenize 3 times under a pressure of 50Mpa to realize organic bentonite and nano calcium carbonate Disperse uniformly in the base oil, then add acetone of the same quality as the organic bentonite, stir well, use a high-pressure homogenizer to homogenize at a pressure of 50Mpa for 3 times to obtain a white semi-fluid open gear lubricant product .

[0030] To illustrat...

Embodiment 3

[0033] The open gear lubricant composition includes 18% nano calcium carbonate, 5% thickener, 0.5% rust inhibitor, and the balance is base oil. Among them, the average particle size of nano calcium carbonate is 120 nanometers, the thickening agent is aluminum stearate soap, the rust inhibitor is barium dinonylnaphthalene sulfonate, and the base oil is 100°C. The kinematic viscosity is 18mm. 2 / s synthetic ester base oil.

[0034] The preparation process is as follows: add 1.67 parts of aluminum isopropoxide to 30 parts of base oil, heat to melt, then add 4.67 parts of stearic acid, heat to 95℃~105℃ for 2 hours and stir the saponification reaction, then add 1 part of water , Stir and react for 1 hour, then heat up to 150°C, add 18 parts of nano calcium carbonate and remaining base oil, heat up to 200°C, then cool down while cyclic shearing, when the temperature drops below 100°C, add 0.5 part of dinonylnaphthalene Barium sulfonate, homogenize 3 times under a pressure of 50Mpa with ...

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Abstract

The invention discloses an open gear lubricant composition, which comprises the following components by weight percentage: 3 to 35 percent of nano calcium carbonate, 2 to 20 percent of thickening agent, 0.01 to 2 percent of antirust, and the balance being base oil. The open gear lubricant composition adopts the nano calcium carbonate to replace the prior organic compound containing sulfur and phosphorus, namely an extreme-pressure antiwear agent and a black solid lubricant such as graphite and supramoly, and not only improves the extreme-pressure antiwear property of a lubricant but also makes the lubricant light-colored, nontoxic and flavorless and environment-friendly. Compared with the prior art, the open gear lubricant composition has the characteristics of superior lubrification, light color, insipidity, friendly environment and so on, and can be widely used for lubricating an open gear drive.

Description

Technical field [0001] The present invention relates to a lubricant composition, in particular to a lubricant composition used in an open gear transmission system. Background technique [0002] Open gears and semi-enclosed gears are transmission devices that have been widely used since the industrial revolution. They are suitable for heavy loads or long-term harsh and impact load conditions. Because of its economy and flexible mechanical design, it is widely used in large-scale rotating equipment in cement, metallurgy, and mining industries, such as grinders, rotary kilns, and mining shovels. Large-scale open gear transmissions usually transmit huge power, and their long-life and safe operation not only depend on the design of the gear and the materials used, but also depend on the correct assembly, efficient lubrication and maintenance and high-quality lubricants. According to statistics: In addition to improper design, manufacturing, installation, operation and maintenance, nea...

Claims

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Application Information

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IPC IPC(8): C10M169/06C10M125/10C10M129/34C10M159/04C10M135/10C10M121/00C10N40/04C10N30/12
Inventor 王晓波赵改青张明刘维民
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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