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Blower main shaft bearing lubricating grease and preparation method thereof

A spindle bearing and grease technology, applied in the field of grease, can solve the problems of high operating costs, non-biodegradable, and short service life of wind power enterprises, and achieve good waterproof and anti-corrosion performance, high load-carrying capacity, and long service life. Effect

Inactive Publication Date: 2013-11-27
辽宁海华科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The lubricating grease for the main shaft bearings of wind turbines is currently mostly imported products. Such products have a short service life and cannot be biodegraded after being discarded, polluting the environment; moreover, imported products are expensive, resulting in high operating costs for wind power enterprises.

Method used

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  • Blower main shaft bearing lubricating grease and preparation method thereof
  • Blower main shaft bearing lubricating grease and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Fan shaft bearing grease, including the following components blended in proportion by weight:

[0025] 12 hydroxystearic acid 10.5kg, sebacic acid 3.5kg, lithium hydroxide 3.08 kg, base oil 77.8 kg, extreme pressure antiwear agent 6 kg, antioxidant 1 kg, rust inhibitor 1 kg, metal deactivator 0.2 kg.

[0026] The production method of fan spindle bearing grease, the specific operation steps are:

[0027] 1) Add mixed base oil with a weight percentage of 58-62% in the saponification kettle, heat up and stir at a speed of 30-60 rpm, add 12 hydroxystearic acid at 80°C, heat up to 90-100°C, and 12 hydroxystearic acid is completely dissolved;

[0028] 2) Mix lithium hydroxide and water according to 1: (5-7) to make a lithium hydroxide suspension, take 40-45% of the lithium hydroxide suspension, and slowly add it to the mixture obtained in step 1), Keep warm at 95-100°C and stir for saponification, the saponification time is 60-80 minutes; continue to heat up to 150-165°C, ...

Embodiment 2

[0032] Fan spindle bearing grease, including the following components blended by weight: 12 hydroxystearic acid 11.25kg, sebacic acid 3.75kg, lithium hydroxide 3.3kg, base oil 74.6kg, extreme pressure antiwear agent 9kg, anti Oxygen agent 0.5kg, rust inhibitor 0.5kg, metal deactivator 0.4kg.

[0033] The production method of fan main shaft bearing lubricating grease is the same as embodiment 1.

Embodiment 3

[0035] Fan main shaft bearing grease contains the following components in parts by weight:

[0036] 129kg of 12 hydroxystearic acid, 49kg of sebacic acid, 3.52 parts of lithium hydroxide 9kg, 71.4 parts of base oil 9kg, 9 parts of extreme pressure antiwear agent 9kg, antioxidant 1.59kg, rust inhibitor 9kg, metal deactivator 0.69 kg.

[0037] The production method of fan main shaft bearing lubricating grease is the same as embodiment 1.

[0038] In the above embodiment, the base oil is a mixture of dipentaerythritol ester, polyalphaolefin, and alkylnaphthalene, wherein the weight percentage is dipentaerythritol ester: 20%-25%; polyalphaolefin: 55%-60%; alkylnaphthalene: 15%-25%. The extreme pressure antiwear agent is a mixture of phenyl thiophosphonate, molybdenum oxysulfide dibutyl dithiocarbamate, and lead diamyl dithiocarbamate. The metal deactivator is a thiadiazole derivative, and the thiadiazole derivative is 2,5-bis(octyldithio)-1,3,4-thiadiazole. 12-Hydroxystearic A...

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Abstract

The invention relates to a blower main shaft bearing lubricating grease which comprises the following components by weight percent: 10.5-12.0 percent of 12 hydroxy stearic acid, 3.5-4.0 percent of sebacic acid, 3.08-3.52 percent of lithium hydroxide, 69.0-82.4 percent of base oil, 2.5-10.0 percent of extreme pressure antiwear additive, 0.5-2.0 percent of anti-oxidant, 0.5-2.0 percent of rust inhibitor and 0.1-1.0 percent of metal passivator. The bearing lubricating grease has the advantages of relatively wide using temperature range, excellent waterproof and anticorrosion performance, superhigh carrying capacity, superior antifriction performance, excellent low-temperature start performance and long service life, can be in full biological decomposition, and is nontoxic and harmless.

Description

technical field [0001] The invention relates to the field of lubricating grease, in particular to a fan main shaft bearing lubricating grease and a preparation method thereof. Background technique [0002] The localization of wind power equipment has brought business opportunities to the wind power lubrication industry. More and more domestic wind power lubricants are quietly listed. As an important part of fan lubrication, fan shaft bearings need to carry low-speed and heavy loads, have special requirements for low-temperature start-up and rust resistance, and have high service life requirements. The lubricating grease for fan spindle bearings is currently mostly imported products. Such products have a short service life and cannot be biodegraded after being discarded, polluting the environment. Moreover, imported products are expensive, resulting in high operating costs for wind power companies. Contents of the invention [0003] In order to overcome the deficiencies o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/00C10N30/06C10N30/12C10N30/08C10N40/02
Inventor 高宇航王庆日黄博文王佳赵丽张晓芳李元鸿刘鹏李瀚文王亮李腾蓝文艺孙辉石峰连丽艳张东辉
Owner 辽宁海华科技股份有限公司
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