Planetary gear device
US9291255B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 20, 2015 |
| Grant date | Mar 22, 2016 |
| Priority date | — |
| Expiry date | Feb 20, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H57/0486
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A planetary gear device includes: a sun gear having external teeth; a plurality of planet gears having external teeth and meshed with the sun gear; a ring gear having internal teeth and meshed with the planet gears; and a baffle unit disposed between the planet gears adjacent to each other and configured to collect lubricant oil into a collection chamber. The baffle unit includes: a discharge outlet to discharge a portion of the lubricant oil collected in the collection chamber in an axial direction; and a ring gear oil supply hole to discharge another portion of the lubricant oil in a radially outward direction and supplied to the ring gear, and a weir member separable from the baffle unit and configured to cover a portion of the discharge outlet to reserve the lubricant oil to be discharged through the ring gear oil supply hole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.