CN101196175A

CN101196175A - Wind power generation lubrication system

Info

Publication number: CN101196175A
Application number: CNA2007101916852A
Authority: CN
Inventors: 朱以人; 吴纯远
Original assignee: SUZHOU NANJIFENG ENERGY SOURCE EQUIPMENT CO Ltd
Current assignee: SUZHOU NANJIFENG ENERGY SOURCE EQUIPMENT CO Ltd
Priority date: 2007-12-13
Filing date: 2007-12-13
Publication date: 2008-06-11

Abstract

The invention provides a lubricating method for wind power generator, which comprises a lubricant, a wind power generator. Compound lubricant is adopted; the main lubricating parts of the wind power generator include a gear box, a generator bearing, a crab system bearing and gear, a hydraulic brake system and a min bearing. Compared with the ordinary mineral grease, the adopted compound lubricant has the advantages of excellent viscosity-temperature characteristics and little impact due to temperature change, is able to ensure easy startup under low temperature and no loss under high temperature, thereby providing sufficient lubrication for the friction parts. In addition, with excellent stability of thermal oxidation and little loss in vaporization, the lubricant can be used for a long time under rigid working condition and climatic situation. Especially, with high biodegradation rate, the compound lubricant can be widely promoted as it results in no pollution to the soil and water source.

Description

Wind power generation lubrication system

Technical field

The present invention relates to a kind of lubricating method of generator, especially a kind of Lubrication of Windmill Generator method.

Background technique

At present, only there is country few in number can manufacture and design large-scale wind driven generator in the world, China is in late 1990s, by introducing technology and constantly production domesticization, possessed the ability of producing large-scale wind driven generator, wind-driven generator is because of its apparatus expensive, work under bad environment, on-the-spot inconvenience is dismantled maintenance to main position, and requires work characteristics such as long service life in the design.

Summary of the invention

The present invention is directed to the defective of prior art, a kind of Lubrication of Windmill Generator method of practicability is provided.

To achieve these goals, the present invention takes following measure to realize:

A kind of Lubrication of Windmill Generator method, comprise oiling agent, wind-driven generator is characterized in that adopting synthetic lubricant, and the main lubricant housings of wind-driven generator comprises gear-box, dynamo bearing, yaw system bearing and gear, hydraulic brake system and main bearing.

The present invention has following progressive effect with respect to prior art: the present invention adopts synthetic lubricant fluid fat to compare in common mineral grease to have comprehensive performance advantage; viscosity-temperature characteristics are good; it is little to be acted upon by temperature changes; thereby be easy at low temperatures start; at high temperature do not run off; can provide enough lubricating for the friction position; thermo oxidative stability is good; evaporation loss is little; under the working condition of harshness and weather conditions, can use for a long time; especially what deserves to be mentioned is the biological degradation rate height of synthetic lubricant fluid, more should vigorously promote the use soil in today of emphasizing environmental protection; the free of contamination synthetic lubricant fluid in water source.

Embodiment

1. the wheel case is lubricated:

Gear-box is the primary lubricant position of wind-driven generator, account for about 3/4 of wind-driven generator oil mass with oil mass, gear-box can become very low wind speed round (wind-driven generator of 600kW is generally 27r/min) very high generator speed (1500r/min usually), adopts oil sump splash system lubrication or pressure self-contained lubrication more.

2. dynamo bearing is lubricated:

Bearing is the primary lubricant point of generator, the long-term operation temperature can reach more than 80 ℃, be subjected to sun direct projection in the area, wilderness summer, temperature can be higher, therefore, require dynamo bearing lubricating grease can at high temperature keep good lubricated and do not run off, and generator power is bigger, require lubricating grease to have good abrasion resistant extreme-pressure performance, oxidation resistance and rustless property, adopt the mode of regular manual greasing to guarantee the normal operation of generator more.

3. yaw system bearing and gear is lubricated:

Yaw system can make swept area of rotor always perpendicular to prevailing wind direction, though speed is not high, but the load that deflection bearing and gear bear is bigger, and deflection gears is generally the beginning structure, because it is fast unlike the dynamo bearing running speed, it is few relatively that self produces heat, thereby be subjected to the weather environmetal impact big, the distribution situation of China's wind-driven generator, extreme pressure and antiwear behavior to deflection bearing lubricating grease, cryogenic property, thermal stability and colloid stability are had relatively high expectations, adhesion property that deflection gears lubricating grease then also needs and Corrosion Protection, the deflection driven mechanism of system need use retarder, motor turns to by the plane table thermoconductivity meter driving head of large speed ratio, generally recommends viscosity temperature characteristic good, anti-rotten good antirust property, the gear oil that extreme pressure and antiwear behavior and oxidation resistance are good.

4. hydraulic brake system is lubricated:

The brake system of domestic common 600kW and 750kW wind-driven generator is respectively blade tip pneumatic braking system and high speed shaft mechanical valve brake system; adopt inefficacy-safety protection pattern; the hydraulic oil requirement that the wind-power electricity generation machine hydraulic system uses has good viscosity temperature characteristic, antiseptic and rustproof performance and excellent cryogenic property, to adapt to the cold weather in the north.

5. main bearing is lubricated:

The load that wind driven generator principal shaft bears is bigger, rotating speed is relatively slow, require lubricating grease to have good bearing capacity, viscosity performance and good cryogenic property,, can be divided into oil lubrication and use grease lubrication according to the difference on the front and back bearings structural configuration.

In the reality, the present invention is applied in the wind-driven generator, can effectively prolong the working life of generator.

Claims

1. Lubrication of Windmill Generator method, comprise oiling agent, wind-driven generator is characterized in that adopting synthetic lubricant, and the main lubricant housings of wind-driven generator comprises gear-box, dynamo bearing, yaw system bearing and gear, hydraulic brake system and main bearing.

2. according to claim 1, it is characterized in that gear-box is the primary lubricant position of wind-driven generator, accounts for about 3/4 of wind-driven generator oil mass with oil mass.

3. according to claim 1, it is characterized in that the load that wind driven generator principal shaft bears is bigger, rotating speed is relatively slow, requires lubricating grease to have good bearing capacity, viscosity performance and good cryogenic property.