| 摘要 |
PROBLEM TO BE SOLVED: To stably supply an oil to a tooth flank. SOLUTION: A gas turbine shaft 1 and a generator shaft 2 are connected by a coupling 3, and the bosses 3b and 3c of a spline formed at both ends of the coupling 3 are engaged with the splines of spline shafts 4 and 6 extrapolated onto the turbine and generator shafts 1 and 2. On the spline shaft 6 of the generator side, a plurality of oil paths 25 for axially passing the oil are made in a peripheral direction. Further, an oil sleeve 27 having an oil reservoir 29 therein is fitted to the spline shaft 6, and has a certain clearance 28 with respect to the peripheral surface of the generator shaft 2. The oil jetted out of an oil jet hole 21 is carried into the oil reservoir 29 through the clearance 28, passes through the oil path 25, and is ejected from its bending part 26 onto the inner wall 3a of the coupling 3. At that time, the oil is spread on the inner wall 3a by a centrifugal force to reach a spline tooth flank. COPYRIGHT: (C)2004,JPO
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