Patent ID: 9618046
Date: 2017-04-11
CPC Classifications: F03D,F16C,Y02E

Claim:
1. An oil discharging system for a main shaft bearing of a wind turbine generator, comprising: a main shaft bearing, a ring-shaped bearing seal having an outer sidewall, a ring-shaped bearing end cover having an inner sidewall, a waste oil through hole and at least one stirring plate; wherein, the ring-shaped bearing seal is sleeved to an end of the main shaft bearing, the ring-shaped bearing end cover is engaged with the ring-shaped bearing seal so that the inner sidewall of the ring-shaped bearing end cover encircles the outer sidewall of the ring-shaped bearing seal; the waste oil through hole is provided in the ring-shaped bearing end cover and in fluid communication with a ring-shaped cavity which is formed between the outer sidewall of the ring-shaped bearing seal and the inner sidewall of the ring-shaped bearing end cover and encircles the outer sidewall of the ring-shaped bearing seal; the at least one stirring plate is provided on the outer sidewall of the ring-shaped bearing seal and positioned within the ring-shaped cavity, wherein the stirring plate rotates together with the ring-shaped bearing seal and the main shaft bearing to stir waste oil within the ring-shaped cavity.