Planetary gear transmission systems or components – With lubricaton
Patent
1997-06-26
1999-07-27
Ta, Khoi Q.
Planetary gear transmission systems or components
With lubricaton
F16H 128, F16H 5704
Patent
active
059281006
ABSTRACT:
A planetary gear has a lower hole which communicates with a radial groove formed in a carrier plate formed at a position near the end portion of an outer peripheral surface of a pinion shaft on a radially inner side thereof. In the inside of the pinion shaft, an internal lubricating oil path is formed which makes an inner wall of the lower hole communicate with an axial center portion of the outer peripheral surface of the pinion shaft on a radially outer side thereof. The lower hole is perforated in an oblique direction with respect to the axis line of the pinion shaft so that a bottom portion of the lower hole is positioned nearer to the end portion than an aperture portion of pinion shaft. The internal lubricating oil path is constituted by a slant oil path, which opens at the inner wall of the lower hole and extends in an oblique direction, and a radial oil path, which opens at the axial center portion of the outer peripheral surface of the pinion shaft on the radially outer side thereof and extends radially to communicate with an end portion of the slant oil path. The axis line of the lower hole is perpendicular to the axis line of the slant oil path.
REFERENCES:
patent: 4719818 (1988-01-01), McReary
patent: 5102379 (1992-04-01), Pagluica et al.
Matsumoto Seiji
Ohtake Isamu
Suzuki Yuji
Jatco Corporation
Ta Khoi Q.
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