Wind power gear box

Abstract

The invention relates to a wind power gear box which comprises a planet shaft, the outer surface of the planet shaft is provided with a hydraulic oil cavity and a functional face, and the planet shaft is internally provided with a main lubricating oil way communicating with the hydraulic oil cavity and an auxiliary lubricating oil way supplying oil to the functional face. The planetary gear is rotatably arranged on the functional face of the planetary shaft in a sleeving mode, the inner surface of the planetary gear is in clearance fit with the functional face of the planetary shaft to form a first dynamic pressure sliding bearing, during power generation, oil is supplied to the hydraulic oil cavity through the main lubricating oil way, and during idling, the first dynamic pressure sliding bearing is provided with a second dynamic pressure sliding bearing. And oil is supplied to the functional surface through the auxiliary lubricating oil way, so that the first dynamic pressure sliding bearing is lubricated under idling. When the draught fan idles, oil is supplied to the functional face through the auxiliary lubricating oil way, the first dynamic pressure sliding bearing is lubricated, the phenomenon that lubrication is insufficient when the wind generating set idles is improved, abrasion and failure caused by insufficient lubrication of the first dynamic pressure sliding bearing are avoided, and the maintenance time and cost are reduced.

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