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Grease for motor bearings of wind generators and production method thereof

A bearing grease, motor and motor technology, applied in the field of grease, can solve the problems of reduced overall fan efficiency, poor anti-friction and extreme pressure performance, short service life, etc., and achieve good waterproof and anti-corrosion performance, good friction reduction and reduction Noise performance, effect of wide operating temperature range

Active Publication Date: 2012-05-02
辽宁海华科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0003] 1) The base oil of most products is mineral or semi-synthetic, which is not only difficult to meet the natural environment of wind turbines in my country, but also has a short service life and cannot be biodegraded after being discarded, which will pollute the environment;
[0004] 2) The anti-friction and extreme pressure properties of some lubricating grease products are poor, which leads to a decrease in the overall efficiency of the fan, and also increases the risk of equipment damage due to lubrication failure;
[0005] 3) The price of imported 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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  • Grease for motor bearings of wind generators and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Wind turbine motor bearing grease, including the following components blended according to weight ratio:

[0037] 9kg of 12-hydroxystearic acid, 3kg of sebacic acid, 2.6kg of lithium hydroxide, 80.6kg of base oil, 3kg of extreme pressure agent, 1kg of antioxidant, 0.5kg of rust inhibitor, and 0.3kg of metal passivator;

[0038] The production method of wind turbine motor bearing grease, its specific operation steps are as follows:

[0039] 1) Add all the base oil in the formula to the saponification kettle, stir at a speed of 30-60 rpm, then add all the 12 hydroxystearic acid in the formula, heat up to 90-100°C to dissolve all the 12 hydroxystearic acid ;

[0040] 2) Dissolve 1 / 2 part of the formula amount of lithium hydroxide in 6-10 times hot water at 95-100°C, and slowly add it to the mixture obtained in step 1) for saponification reaction. The addition time is not less than 30 minutes, and the saponification reaction time is not After less than 1 hour, slowly heat...

Embodiment 2

[0046] Wind turbine motor bearing grease, including the following components blended according to weight ratio:

[0047] 11.2kg of 12-hydroxystearic acid, 3.8kg of sebacic acid, 3.2kg of lithium hydroxide, 74.4kg of base oil, 4kg of extreme pressure agent, 1.5kg of antioxidant, 1.5kg of rust inhibitor, and 0.4kg of metal deactivator;

[0048] The production method of the wind-driven generator motor bearing grease is the same as in Example 1.

Embodiment 3

[0050] Wind turbine motor bearing grease, including the following components blended according to weight ratio:

[0051] 13.5kg of 12-hydroxystearic acid, 4.5kg of sebacic acid, 3.9kg of lithium hydroxide, 70.6kg of base oil, 5kg of extreme pressure agent, 1kg of antioxidant, 1kg of rust inhibitor, and 0.5kg of metal deactivator;

[0052] The production method of the wind-driven generator motor bearing grease is the same as in Example 1.

[0053] In the above examples, the base oil refers to a mixed oil composed of isotridecyl adipate, PAO10, PAO40 and alkylnaphthalene, and its mixing ratio is isotridecanyl adipate: PAO10: PAO40: alkylnaphthalene =10:20:60:10. Extreme pressure agent refers to a mixture composed of thiocarbamate, triphenyl thiophosphate, molybdenum oxysulfide carbamate and nano-calcium carbonate, and its mixing ratio is thiocarbamate: triphenyl thiophosphate : molybdenum oxysulfide carbamate: nano calcium carbonate = 10:50:10:30. The antioxidant is octylbuty...

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Abstract

The invention relates to the field of lubricating grease, in particular to grease for motor bearings of wind generators and a production method thereof. The grease is characterized by being prepared by blending the following components in part by weight: 9 to 13.5 parts of 12-hydroxystearic acid, 3 to 4.5 parts of sebacic acid, 2.6 to 3.9 parts of lithium hydroxide, 70 to 80.7 parts of base oil, 1 to 5 parts of extreme pressure additive, 0.5 to 2 parts of antioxygen, 0.5 to 2 parts of antirust additive, and 0.3 to 0.5 part of metal passivating agent. The base oil is mixed oil of hexane diacidisotridecyl alcohol ester, polyalphaolefin10 (PAO10), PAO40 and alkyl naphthalene. The extreme pressure additive is a mixture of thiocarbamate, triphenyl thiophosphate, molybdenum oxothioxo carbamates, and nano calcium carbonate. Compared with the prior art, the grease has the advantages of wide use temperature range, high waterproof and anticorrosion performance, high loading capacity, high wear-reducing and noise-reducing performance, very high low-temperature startability and very high lubricating performance.

Description

technical field [0001] The invention relates to the field of lubricating grease, in particular to a wind-driven generator motor bearing grease and a production method thereof. Background technique [0002] The lubricating grease for initial installation of wind turbines in my country is designated as an imported product, and the lubricating grease for lubrication and maintenance of wind power plants mostly adopts the brand of initial installation grease. According to the survey, the main problems of imported lubricating products for wind turbines are as follows: [0003] 1) The base oil of most products is mineral or semi-synthetic, which is not only difficult to meet the natural environment of wind turbines in my country, but also has a short service life and cannot be biodegraded after being discarded, which will pollute the environment; [0004] 2) The anti-friction and extreme pressure properties of some lubricating grease products are poor, which leads to a decrease in...

Claims

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Application Information

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IPC IPC(8): C10M169/00C10M177/00C10N50/10C10N40/02C10N30/12C10N30/06
Inventor 李元鸿王庆日张晓芳赵丽张引李明慧王亮杨家栋田微刘鹏杜尚君
Owner 辽宁海华科技股份有限公司
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