| 摘要 |
Provided is a gearbox provided with a lubrication structure wherein a lubricant that has been distributed can be efficiently supplied to each location to be lubricated, and the power loss is small. The gearbox is comprised of shaft bodies supported by a case (10) in the axial directions of the shaft bodies; a plurality of gears which are supported by the shaft bodies and which are rotatably coupled to the shaft bodies by a shift clutch; a large-diameter gear (80) among the plurality of gears, which has a lower portion immersed in a lubricant contained in a lubricant storage area (91) formed in the lower portion of the case (10) and which rotates to distribute the lubricant upwardly; and a receiver (92) which extends in a direction of the rotational axis of the large-diameter gear (80) to collect the distributed lubricant and circulate the lubricant to locations to be lubricated. The receiver (92) is comprised of a vertical wall (92d) having a surface on which the lubricant that has been distributed to disperse above the receiver impinges and moves downwardly, to introduce the lubricant to a collecting portion of the receiver, and an introduction portion (94) having a surface on which the lubricant that disperses between the receiver (92) and the large-diameter gear (80) flows due to the inertia force, to introduce the lubricant to a collecting portion (92a). |
