Patent ID: 9746068
Date: 2017-08-29
CPC Classifications: F16H

Claim:
1. A lubricating structure for a vehicle drive system, the lubricating structure comprising: a case; an electric motor arranged inside the case; a first reduction gear pair provided between an output shaft of the electric motor and a counter shaft parallel to the output shaft, the first reduction gear pair including a first drive gear and a first driven gear that is in mesh with the first drive gear; a second reduction gear pair provided between the counter shaft and a drive output shaft parallel to the counter shaft, the second reduction gear pair including a second drive gear and a second driven gear that is in mesh with the second drive gear; a first catch tank arranged inside the case; a second catch tank arranged inside the case; a first oil passage that guides lubricating oil, stored at a bottom in the case and scooped up by the first driven gear, to the first catch tank; and a second oil passage that guides lubricating oil, stored at the bottom in the case and scooped up by the second driven gear, to the second catch tank, wherein: the case includes a first accommodation member, a second accommodation member and a partition member, the first accommodation member accommodates the first reduction gear pair, the second accommodation member accommodates the second reduction gear pair, the partition member is held between the first accommodation member and the second accommodation member, the partition member includes a bearing portion and a side wall of the second catch tank, and the bearing portion supports a bearing for the first drive gear and a bearing for the second driven gear; the partition member includes a partition wall portion, one side face portion of the partition wall portion and the first accommodation member define a first gear chamber in which the first reduction gear pair is accommodated, and the other side face portion of the partition wall portion and the second accommodation member define a second gear chamber in which the second reduction gear pair is accommodated; and in the partition wall portion, a scoop-up wall that scoops up the lubricating oil in cooperation with at least one of the first driven gear and the second driven gear is provided near the at least one of the first driven gear and the second driven gear, and a rib for reinforcing stiffness of the bearing portion is provided on a back face of the scoop-up wall.