The invention provides a helicopter planetary gear bearing ring lower
lubrication test
bed. The helicopter planetary gear bearing ring lower
lubrication test
bed comprises a base provided with a mounting plate, a
power transmission mechanism, an oil guide mechanism, a flight attitude
simulation platform mounted on the lower surface of the base through a connecting
assembly, a driving mechanism arranged on the base and a test main body, the test main body comprises a planetary
gear train gearbox mounted on the base and a planetary
gear train mounted in an inner cavity of the planetary
gear train gearbox, and the planetary gear
train comprises a sun gear, an inner gear ring, a
planet carrier and three planetary gear mechanisms arranged on the
planet carrier; the planetary gear mechanism comprises a hollow planetary shaft installed on the planetary carrier and a planetary gear embedded with a test bearing and an auxiliary bearing, the planetary gear is sleeved on the hollow planetary shaft, the planetary gear is meshed with the sun gear, and the planetary gear is meshed with the inner gear ring. According to the invention, the test bearing can rotate and revolve at the same time while simulating the real operation condition of the helicopter, so that the
lubrication effect of the helicopter planetary gear bearing can be effectively evaluated.