Power transmission device

摘要

A power transmission device includes a casing, a first shaft, and a second shaft, wherein the first shaft has a protruding portion which protrudes from the casing, a fan is provided at the protruding portion, a fan cover configured to cover the fan has an extending portion which extends toward a bearing supporting portion of the second shaft along a side surface of the casing, and the extending portion is inclined so as to approach the side surface of the casing toward the bearing supporting portion side from the fan side.

主权项

1. A power transmission device comprising:
a casing; a first shaft; and a second shaft, wherein the first shaft comprises a protruding portion which protrudes from the casing, a fan is provided at the protruding portion, a fan cover configured to cover the fan comprises a base end section and an extending portion which extends toward a bearing supporting portion of the second shaft along a side surface of the casing, and the extending portion is a separate member from the base end section, is connected at a joining portion to the base end section in a cantilever state, and is inclined toward the bearing supporting portion side from the fan side such that a distance defined perpendicularly from an axial center of the fan to the extending portion distant from the joining portion is smaller than a distance defined perpendicularly from the axial center to the extending portion proximate to the joining portion.