Blower pitch bearing lubricating grease and preparation method thereof

A bearing lubrication and fan technology, applied in the field of lubricating grease, can solve the problems of short oil life, non-biodegradable, environmental pollution, etc., achieve high and low temperature performance balance, improve comprehensive performance, and broad market prospects

Inactive Publication Date: 2013-09-25
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

[0004] ①The base oil of most products is mineral type or semi-synthetic type, which cannot be biodegraded and pollutes the environment after being discarded;
[0005] ②The design did not fully consider the environmental characteristics of the western inland wind belt with the most abundant wind energy in my country, which has harsh environmental conditions, a wide range of ambient temperature changes, and frequent wind and dust, so the service life of the oil is short, and various failures due to poor lubrication often occur The failure of wind power equipment caused by it;
[0006] ③ The price of foreign products is relatively expensive, and the price of lubricating grease is as high as hundreds of thousands of yuan / ton, which causes excessive operating costs for wind power enterprises in my country

Method used

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  • Blower pitch bearing lubricating grease and preparation method thereof
  • Blower pitch bearing lubricating grease and preparation method thereof
  • Blower pitch bearing lubricating grease and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A kind of lubricating grease for wind turbine variable pitch bearings, comprising the following components in parts by weight:

[0033]

[0034] The preparation method of fan variable pitch bearing lubricating grease comprises the following steps:

[0035] 1) Add 50-55% base oil into the saponification kettle, start heating and stirring, and the speed is 30-60 rpm;

[0036] 2) Dissolve lithium hydroxide in water, the amount of water is 6 to 6.5 times the amount of lithium hydroxide, and add the lithium hydroxide aqueous solution into the saponification kettle;

[0037] 3) Add hydrogenated castor oil to the saponification kettle at 80-105°C for 20 minutes;

[0038] 4) At 105±2°C, add lauryl hydroxystearic acid into the saponification kettle for saponification for 50-60 minutes, continue heating and dehydration;

[0039] 5) Add 20-25% base oil to the saponification kettle at 140-145°C, continue heating to 205-210°C, add octyl-butyl diphenylamine, and keep warm for 5-...

Embodiment 2

[0044] Fan variable pitch bearing lubricating grease is characterized in that the weight ratio of each component is as follows:

[0045]

[0046] The preparation method of the fan variable pitch bearing lubricating grease is the same as the first embodiment.

Embodiment 3

[0048] Fan variable pitch bearing lubricating grease is characterized in that the weight ratio of each component is as follows:

[0049]

[0050] The preparation method of the fan variable pitch bearing lubricating grease is the same as the first embodiment.

[0051] The above base oil is a mixed oil of low viscosity polyalphaolefin and alkyl naphthalene, and the kinematic viscosity of this mixed oil is about 30mm at 40°C 2 / s, the viscosity index is not less than 130.

[0052] The above-mentioned extreme pressure antiwear agent is a mixture of thiourethane, triphenyl thiophosphate and dibutyl dithioamino molybdenum oxysulfide.

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Abstract

The invention relates to a blower pitch bearing lubricating grease which comprises the following components in parts by weight: 9.1-10.5 parts of 12-hydroxystearic acid, 3.9-4.5 parts of hydrogenated castor oil, 1.9-2.4 parts of lithium hydroxide, 75.9-82.3 parts of base oil, 1.5-3.5 parts of extreme pressure antiwear additive, 0.5-1.5 parts of antioxidant, 0.5-1 part of rust inhibitor and 0.3-0.7 part of metal passivator. Compared with the prior art, the invention can perform long-acting lubrication and protection on the generating equipment blade pitch bearing in low-temperature, high-temperature, high/low-temperature alternate variation, rain and snow, sand dust and other harsh environments, can perform dynamic repair on friction positions subjected to abrasion and pitting corrosion in the operation process, and solves the technical problems of limited service life, environmental pollution and the like in the existing wind power equipment lubricant.

Description

technical field [0001] The invention relates to the technical field of lubricating grease, in particular to a lubricating grease for fan variable pitch bearings and a preparation method thereof. Background technique [0002] As an important resource for the development of green new energy today, wind energy has been valued by all countries. Our country is very rich in wind energy resources. According to data, my country's water resource reserves are 70GW, while wind energy reserves are as high as 250GW. Therefore, in recent years, the country has vigorously developed wind power. Power generation, the wind power industry has entered a period of rapid development, the number of wind turbines and installed capacity are increasing rapidly, and the wind power manufacturing industry has also begun to start, but the lubrication technology of wind power equipment, which is an important basic support, is blank. [0003] The lubricating grease for initial installation of wind turbines ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10M177/00
Inventor 赵丽王庆日李元鸿张晓芳刘鹏崔阳黄博文王亮连丽艳孙辉石峰吕焕明于洪亮
Owner 辽宁海华科技股份有限公司
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