Combine harvester with rotary stubble cutter

Abstract

The invention discloses a combine harvester with a rotary stubble cutter, comprising an upper cutter device, a walking mechanism and a cutting table, wherein a rotary stubble cutter is arranged in front of the walking mechanism and at the rear lower side of the upper cutter; the rotary stubble cutter comprises a rotating shaft driven by power; and a plurality of sets of rotating pieces are fixedly arranged on the rotating shaft. The invention can lower the heights of remained stubbles and has small working load, strong overload capacity and difficult damage.

Description

technical field [0001] The invention relates to a combine harvester, in particular to a combine harvester capable of further cutting stubble left over after fringe cutting. technical background [0002] When the known full-feed combine harvester is working, after the upper cutter device cuts and collects the ear part of the crop, it will leave a relatively high stubble. A lower cutter device is installed in front of the traveling mechanism and behind the upper cutter. The lower cutter device generally uses a reciprocating dynamic cutter group and a static cutter group to cut the stubble, so as to further reduce the residue of stubble. When the lower cutter device is working, it needs to provide a large shearing force to cut off multiple stubbles at the same time. The work load is large, the strength is high, and the power consumption is large; and the lower cutter device structure adopts the dynamic and static cutter group to work together. The strength redundancy is small,...

AI Technical Summary

Problems solved by technology

[0002] When the known full-feed combine harvester is working, after the upper cutter device cuts and collects the ear part of the crop, it will leave a relatively high stubble. A lower cutter device is installed in front of the traveling mechanism and behind the upper cutter. The lower cutter device generally uses a reciprocating dynamic cutter group and a static cutter group to cut the stubble, so as to further reduce the residue of stubble. When the lower cutter device is working, it needs to provide a large shearing force to cut off multiple stubbles at the same time. The work load is large, the strength is high, and the power consumption is large; and the lower cutter device structure adopts the dynamic and static cutter group to work together. The strength redundancy is small, the overload capacity is low, the distance between the working position and the ground is small, and it is easy to cause damage accidents in contact with soil blocks and ridges, which will affect the overall performance of the harvester.

Images