Collecting device and generator set

The invention discloses a collecting device and a generator set applying the collecting device.The collecting device comprises a cover plate, the cover plate is suitable for being arranged on the periphery of a shaft collar in a sleeving mode, a cooling flow channel is formed in the cover plate, and the cooling flow channel extends in the circumferential direction of the cover plate and is suitable for allowing a cooling medium to flow in the cover plate so as to cool the cover plate; the cover plate cools the oil mist, and the oil mist is condensed into oil drops on the surface of the cover plate; the oil basin is connected to the lower side of the cover plate and arranged on the peripheral sides of part of the large shaft and the shaft collar in a sleeving mode so as to collect oil drops formed by condensation on the surface of the cover plate. The collecting device has the advantages of being good in sealing performance and good in oil basin oil mist collecting effect. 本发明公开了一种收集装置和应用该收集装置的发电机组，所述收集装置包括：盖板