| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the following problems wherein lubricating oil in an oil feed sump formed in the supporting shaft of a planetary gear is biased toward an oil filler hole formed in a portion away from the revolution center of the planetary gear, and there is insufficient lubrication in an oil filler hole formed in a portion close to the revolution center. <P>SOLUTION: In this lubricating device for the planetary gear reduction gear, one end of a rotary oil feeding member 28 is fixed to the retainer 22 of a rolling bearing 19 exposed to the side of the opened end surface of the oil feed sump 25, arm 31 provided at the end of the rotary oil feeding member 28 is inserted into the oil feed sump 25 from the opened end surface, and the arm 31 is made to approach the inner peripheral surface of the oil feed sump 25. Thereby, the lubricating oil eccentrically-located on the peripheral wall of the oil feed sump 25 is dispersed to the whole periphery by rotation of the arm 31 due to rotation of the rolling bearing 19, and oil is fed from also a shaft-side oil filler hole 26 located close to the revolution center. <P>COPYRIGHT: (C)2011,JPO&INPIT |
