Threshing and separating device and combine harvester having the same
US9456550B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 20, 2015 |
| Grant date | Oct 4, 2016 |
| Priority date | — |
| Expiry date | Feb 20, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01F12/39
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A threshing and separating device comprises a first threshing and separating mechanism, a second threshing and separating mechanism, and an intermediate feeding mechanism therebetween. The first threshing and separating mechanism comprises a first cylinder in a form of a toothed rod and a first concave in a form of a wire-grate, and a surface of the first concave facing the first cylinder is provided with no part protruding into a tip circle of threshing teeth of the first cylinder; the second threshing and separating mechanism comprises a second cylinder in a form of a toothed rod and a second concave in a form of a wire-grate, and a surface of the second concave facing the second cylinder is provided with no part protruding into a tip circle of threshing teeth of the second cylinder; the second cylinder comprises a forced feeding portion located at front end thereof and comprising a truncated cone and helical blades on the truncated cone; and a toothed-rod cylinder portion located behind the forced feeding portion and comprising a plurality of second rods parallel to the rotation axis of the second cylinder and uniformly arranged in a circumferential direction thereof, and each s…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.