| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lubricating device of a planetary gear speed reducer in which lubricating oil can be sufficiently fed even to a bearing part near the center of revolution when arranging a lubricating oil feed reservoir part in the supporting shaft of the planetarium gear and feeding the lubricating oil to a roller bearing from the lubricating oil feed reservoir side. <P>SOLUTION: The lubricating device of the planetary gear speed reducer includes a planetarium gear 15 supported by a longitudinally directed supporting shaft 16 revolving by a planetarium gear mechanism 11 via a roller bearing 19 and a nozzle 26 arranged downward on the moving path of the planetarium gear 15, the lubricating oil is fed to the roller bearing 19 from the lubricating oil feeding nozzle 26 while the planetarium gear 15 passes the lower side of the lubricating oil feeding nozzle 26, the lubricating oil reservoir 25 opened upward is arranged in the supporting shaft 16, a shaft side lubricating oil feed hole 27 in communication with the inside of the roller bearing 19 is arrange in the peripheral wall of the lubricating oil feed reservoir 25, and a pump device 29 for feeding out lubricating oil in the lubricating oil feed reservoir 25 is arranged in the shaft side lubricating oil feed hole 27. <P>COPYRIGHT: (C)2012,JPO&INPIT |
