Rotary tillage, sowing, ditching and pressing compound operation machine
US12075716B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 8, 2021 |
| Grant date | Sep 3, 2024 |
| Priority date | — |
| Expiry date | Dec 8, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01B63/008
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A rotary tillage, sowing, ditching and pressing compound operation machine includes a fertilization and sowing device, an intermediate rotary tillage and ditching device, a frame, a liftable ditcher, and a multi-stage press wheel device. The multi-stage press wheel device includes a front press wheel and a rear press wheel. The front press wheel includes a front press roller shaft, front press rollers, and connecting rods. The rear press wheel includes a connecting plate, a rear press roller shaft, and a rear press roller. A first end of the connecting plate is connected to the rear press roller shaft by a support, and the connecting plate is connected to the frame in a manner of a sliding pair. The rear press roller is mounted on the rear press roller shaft in a manner of a revolving pair, and the rear press roller is located behind the liftable ditcher.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.