| 摘要 |
PROBLEM TO BE SOLVED: To provide an inexpensive lubricating device capable of introducing lubricating oil to a bearing between a planetary pin and a planetary gear, and to a meshing face of the planetary gear and a sun gear or a ring gear even when it is separated from a lubricating oil bath. SOLUTION: In a planetary gear drive 20, the sun gear 1 directly connected to a high speed shaft 5, the ring gear 3 fit in a casing 4, and a plurality of the planetary gears 2 between the sun gear 1 and the ring gear 3 are disposed so as to freely roll at equal angles, the planetary gear 2 is rotatably supported on the planetary pin 6 fixed to a carrier 7 via a bearing 9, and a low speed shaft 8 is integrally provided in the carrier 7. It is characterized by that an axis hole 10 is provided in the planetary pin 6, an introduction hole capable of introducing the lubricating oil to the bearing 9 from the axis hole 10 is provided, an opening of the axis hole 10 is composed so as to open and close by an opening and closing lid 13 provided in an end of the axis hole 10, the axis hole 10 is opened at dipping into the lubricating oil bath 15 in the casing 4 to introduce the lubricating oil into the axis hole 10, and the axis hole 10 is closed at separation from the lubricating oil bath 15 to retain the lubricating oil in the axis hole 10. COPYRIGHT: (C)2010,JPO&INPIT
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