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Low-temperature worm and gear lubricating grease composition and preparation method thereof

A grease composition and worm gear technology, applied in the field of grease, can solve the problems of frequent maintenance and oil change, difficulty in starting, etc., and achieve the effects of excellent low-temperature startability, high output efficiency, and long service life

Active Publication Date: 2014-08-13
武汉博达特种润滑技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The lubricating grease composition solves the problems of prior art products such as inability to start the worm gear and worm gear in low-temperature environments such as cold regions and extremely cold regions, difficulty in starting, and frequent maintenance and oil changes, and is suitable for long-term or even "lifetime" lubrication of the worm gear and worm gear.

Method used

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  • Low-temperature worm and gear lubricating grease composition and preparation method thereof
  • Low-temperature worm and gear lubricating grease composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Embodiment one (normal pressure method)

[0046] 1) 180 kg of polyethylene glycol ether (V40=69.22mm 2 / s, the same below), 50 kg of 12-hydroxystearic acid were added to the reaction kettle in sequence, stirring and heating was started to raise the temperature to 90±10°C, all the mixture in the kettle became liquid, and 7.5 kg of LiOH·H 2 O and 37.5 kg of distilled water mixed solution, saponification reaction at constant temperature between 100-110°C for 30-90 minutes (12-hydroxystearic acid, LiOH·H 2 O reacts with distilled water mixture to generate lithium soap as a thickening agent).

[0047] 2) Continue to heat up to 160±10°C, add 167kg of polyethylene glycol ether, further stir and heat up to 210±15°C, and add metal deactivator: 2kg of benzene Triazole (T706) and antioxidant: 20 kg of phenyl-α-naphthylamine (T531), stirred for 10±5 minutes.

[0048] 3) 300 kilograms of polyethylene glycol ether and 150 kilograms of trimethylolpropane saturated fatty acid ester ...

Embodiment 2

[0049] Embodiment two (prefabricated soap method)

[0050] 1) Base oil: 380 kg polyalphaolefin oil (V40=146.98mm 2 / s, the same below) and thickener: 92 kg of 12-hydroxy lithium stearate were added to the reaction kettle in turn, and the temperature was raised to 210±15°C with heating and stirring. Agent: 3 kilograms of benzotriazole (T706), antioxidant: 5 kilograms of phenyl-α-naphthylamine (T531) and 5 kilograms of 2,6-di-tert-butyl-p-cresol (T501), stirred for 10 ± 5 minutes.

[0051] 2) The material is discharged into a blending kettle in which 190 kg of polyalphaolefin oil and 192 kg of bis-(2-ethylhexyl) sebacate have been added, stirred and cooled to 70±15°C, and extreme pressure anti-wear Agent: 3 kg amine phosphate, 30 kg oily potassium borate (T361), friction modifier: 15 kg isomeric monoglyceride stearate, rust inhibitor: 5 kg barium dinonyl naphthalene sulfonate (T705), solid Lubricant: 30 kg polytetrafluoroethylene ultrafine powder (PTFE) and 50 kg boron nitrid...

Embodiment 3

[0052] Embodiment three (prefabricated soap method)

[0053] 1) 393 kilograms of polyalphaolefin oil (V40=19.14mm 2 / s, the same below) and thickener: 45 kg of lithium stearate were added to the reaction kettle in turn, and the temperature was raised to 210±15°C with stirring and heating. Diphenylamine and 2.5 kg of diisooctyldiphenylamine were stirred for 10 ± 5 minutes.

[0054] 2) The material is discharged into the blending kettle that has added base oil: 200 kg of polyalphaolefin oil and 180 kg of di-(2-ethylhexyl) adipate, stirred and cooled to 70±15°C, and then added polar Pressure antiwear agent: 15 kg tricresyl phosphate (T306), 45 kg oily potassium borate (T361), friction modifier: 15 kg isomeric monoglyceride stearate, rust inhibitor: 5 kg dimer oleic acid, 3 kilograms of dodecenylsuccinic acid (T746), metal deactivator: 1.5 kilograms of benzotriazole derivatives (T551), solid lubricant: 30 kilograms of polytetrafluoroethylene ultrafine powder (PTFE) and 70 kilogr...

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Abstract

The invention provides a low-temperature worm and gear lubricating grease composition. The low-temperature worm and gear lubricating grease composition consists of the following components in percentage by weight: 40.5-94.55% of synthesis base oil, 2-20% of thickening agents, 2-20% of solid lubricants, 0.5-8% of extreme-pressure anti-wear reagents, 0.5-5% of friction improvers, 0.2-2% of antirust agents, 0.05-0.5% of metal passivator and 0.2-4% of antioxidants. The invention further provides a preparation method of the low-temperature worm and gear lubricating grease composition. The low-temperature worm and gear lubricating grease provided by the invention is prepared by refining low-middle-viscosity synthesis base oil, thickening agents and a plurality of additives and has the advantages that the starting torque and the low operation torque under a low-temperature environment equal to or lower than -40 DEG C are low, meanwhile, the extreme-pressure wear resistance, the antirust and anticorrosion properties and the leak resistance are excellent, the friction coefficient is low, the output efficiency is high, and the service life is extreme long.

Description

technical field [0001] The invention relates to the technical field of lubricating grease, in particular to a low-temperature worm gear lubricating grease composition and a preparation method thereof. Background technique [0002] Worm gear transmission is one of the types of gear transmission, which is used to transmit power and motion in the vertical direction. Worm gear transmission has the characteristics of small size, low noise, no vibration, high reduction ratio, stable operation, and large output torque. a wide range of applications. Worm gear reducers can be used in low-speed workbenches of machine tools, steering gears of automobiles, mining equipment, lifting equipment, escalators, power switches, electric doors, solar generators, conveyor chains and other equipment. [0003] In the worm gear device, the worm gear is mostly made of bronze, brass, aluminum bronze, tin bronze, nickel bronze and manganese bronze, while the worm is matched with steel materials, so th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M169/04C10N30/08C10N30/06C10N30/12
Inventor 曹杰
Owner 武汉博达特种润滑技术有限公司
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