Self balancing chopping or threshing rotor
US8375826B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 2011 |
| Grant date | Feb 19, 2013 |
| Priority date | — |
| Expiry date | Dec 15, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/2111
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A rotary element and a rotary element balancing system of a combine harvester. The rotary element includes a rotary member that rotates during operation and one or more blade mount assemblies. The rotary element also includes one or more auto-balance assemblies mounted to the rotary member to compensate for a mass offset on the rotary element due to the one or more blade mount assemblies being dislodged or broken. The one or more auto-balance assemblies include one or more tracks and one or more spheres located inside the one or more tracks and in contact with first and second bearing race edges. Loads are transferred from at least one of the first bearing race edge and the second bearing race edge, when the rotary member rotates, to the one or more spheres that self-align within the track to compensate for the mass offset on the rotary element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.