Input end of gear box of wind power generator

Abstract

The invention relates to an input end of a gear box of a wind power generator. An input shaft is installed at a flange through a bearing; and the flange is fixedly connected with a box body at the input end through a bolt. The input end is characterized in that an oil seal and a bearing are arranged at the combination part of the input shaft and the flange; the oil seal is positioned on an input shaft at the front end of the bearing; the bearing is a deep groove ball bearing with a sealing surface on the single side, and the sealing surface of the bearing is positioned at one side of the gear box; the flange is provided with a lubricating grease injection port and a lubricating grease overflow port as well as a pair of lubricating oil plugs; the lubricating grease injection port and the lubricating grease overflow port are communicated with an axial clearance between the oil seal and the bearing through an oil duct; and the lubricating oil plugs are communicated with a gear cavity of the gear box. The input end has the advantages of compact structure, good lubricating effect to the bearing and long service life; and meanwhile, the input shaft is more stable to operate.

Description

technical field [0001] The invention relates to a new structure of an input end of a wind power generator gear box, in particular to an input end of a yaw or pitch gear box with a sealing and lubricating device. Background technique [0002] With the rapid development of the global renewable energy market, wind power has gradually become a new growth point of the energy industry. It has already possessed the ability to catch up with other power generation means, and it is showing a trend of rapid development in the world. [0003] The yaw and pitch gearboxes are one of the important components of wind turbines. Their function is to adjust the angle between the nacelle and the blades of the wind turbine to adapt to changes in wind direction or wind force, so as to utilize wind energy more effectively. Due to the harsh working conditions, inconvenient maintenance, and the small installation space, the pitch gearbox has strict requirements on reliability, lubrication, sealing a...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to: not only need to add a large amount of lubricating oil for the sealing and lubricating device of the input end of the pitch gearbox or yaw gearbox of the existing wind power generator, but also cause the iron filings and impurities generated during operation to be lubricated with the lubrication. The oil enters the bearing at the input end, which directly affects a series of problems such as the service life of the gearbox. A new sealing and lubrication method is provided for the input end of the wind turbine gearbox for the yaw or pitch gearbox.

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