Coupled compound planetary transmission for a wheel unit
US10399437B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 6, 2016 |
| Grant date | Sep 3, 2019 |
| Priority date | — |
| Expiry date | Dec 28, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D3/223
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A wheel unit includes a suspension housing having a pin defining a steering axis, a transmission housing pivotable about the steering axis, a wheel rim rotatable about a rotational axis and configured to pivot about the steering axis, and a coupled compound planetary transmission drivingly engaged with the wheel rim. The coupled compound planetary transmission includes an input drive shaft, a sun gear rotatable about the rotational axis, a constant velocity joint coupled between the input drive shaft and the sun gear, a first ring gear fixed relative to the transmission housing, a first planet gear enmeshed with the sun gear and the first ring gear, a second ring gear fixed relative to the wheel rim for co-rotation about the rotational axis, a second planet gear enmeshed with the second ring gear, and a shaft coupling the first planet gear and the second planet gear for co-rotation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.