Patent ID: 9587731
Date: 2017-03-07
CPC Classifications: F16H

Claim:
1. A rotating-shaft lubricating apparatus comprising: a rotating shaft disposed horizontally; a supporting wall adapted to rotatably support an end portion of the rotating shaft in an axial direction, with a bearing interposed therebetween; an oil chamber surrounded by the supporting wall and an end surface of the rotating shaft in the axial direction; an oil passage opened to the oil chamber through the end surface of the rotating shaft, the oil passage extending in the axial direction within the rotating shaft and communicating with at least one lubricating portion in an outer peripheral surface of the rotating shaft; an oil intake portion for receiving oil from outside the oil chamber and for supplying the oil to the oil chamber; and a plurality of guide ribs protruding from the supporting wall toward the end portion of the rotating shaft within the oil chamber, wherein the plurality of guide ribs includes a first guide rib extending from a radially-outer portion of the oil chamber toward a center portion coincident with an opening of the oil passage, and a second guide rib adjacent to and spaced apart from the first guide rib, the first guide rib and the second guide rib being configured and arranged to form at least two oil flow paths from the radially-outer portion of the oil chamber toward the center portion between the first guide rib and the second guide rib and extending along the plurality of guide ribs.