| 摘要 |
PURPOSE:To prevent wear of a spline shaft by providing connecting holes between a fore and a rear circulating chambers in the body of the spline shaft for lubrication. CONSTITUTION:When a driving shaft 1 is rotated, an output shaft 13 is rotated through flywheel 3, a spline boss 5, and a spline shaft 15, rotating an output pulley 37. In a response to rotations of the shaft 15, the oil is exhausted by a centrifugal force from a vertical fine hole 35b of a connecting hole 35 into a rear circulating chamber 29. Since a negative pressure is created in the vertical fine hole 35b, the oil in a horizontal fine hole 35a moves into the vertical fine hole 35b. Likewise, the oil in a fore circulating chamber 17 moves into the horizontal fine hole 35a, and the oil in the rear circulating chamber 29 moves into the fore circulating chamber 17 through the base end of the spline shaft 15 and an engaging gap of a spline hole 11 in sequence. Accordingly, while the shaft 15 is rotating, the oil is circulated through the rear circulating chamber 29, the fore circulating chamber 17, and the connecting hole 35. |
