FORCED LUBRICATING MECHANISM OF PLANETARY GEAR DEVICE

摘要

PURPOSE:To reliably lubricate a portion between a pinion gear and a pinion carrier by forming an intra-shaft oil passage on a pinion shaft and fitting an oil reservoir on the side face of a shaft support section via an oil seal material. CONSTITUTION:An intra-shaft passage 4E communicating the axial side face 4C of a shaft support section 4B side and the outer periphery face 4D of the pinion shaft 4A is formed on the pinion shaft 4A, and an oil reservoir 4F supplying lubricating oil to the oil port of the intra-shaft passage 4E is fitted to the side face of the shaft support section 4B. Accordingly, the lubricating oil fed to the oil reservoir 4F is fed to the intra-shaft passage 4E without being leaked to the outside due to the oil seal member 5, thus a portion between a pinion gear 2 and a pinion carrier 4 can be reliably lubricated.