Planetary gear transmission systems or components – With lubricaton
Patent
1997-08-25
1999-06-08
Ta, Khoi Q.
Planetary gear transmission systems or components
With lubricaton
475331, F16H 344
Patent
active
059100630
ABSTRACT:
A thrust bearing is interposed between a carrier plate and a sun gear. Grooves are formed on a surface of a thrust race of the thrust bearing the surface of the thrust race opposes the carrier plate, so that the grooves connect a space at inner peripheral side of the thrust bearing with a space at outer peripheral side of the thrust bearing. A pinion shaft is formed with a longitudinal hole that opens at an axial end face of the pinion shaft, and with two radial holes that open at an outer peripheral surface of the pinion shaft. These radial holes communicate with the longitudinal hole to constitute the lubricating oil paths. An oil catcher is fixed to the axial end face of the pinion shaft to form a guide oil path, which extends from the vicinity of an outer peripheral surface of the thrust bearing to an aperture portion of the longitudinal hole along an outer surface of the carrier plate and the axial end face of the pinion shaft. The inner-most peripheral portion of the oil catcher is bent toward the sun gear to enlarge an opening portion of the guide oil path. A lubricating oil discharge opening is formed in an input shaft shaft, which opening opens near a space located at an inner peripheral side of the thrust bearing.
REFERENCES:
patent: 5230664 (1993-07-01), Michioka et al.
Jatco Corporation
Ta Khoi Q.
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