Universal gyrotilling stubble-breaking machine

Abstract

The present invention relates to a new type rotary-tilling stubble-breaking universal machine, belonging to a agricultural tillage equipment. It includes machine frame composed of suspension carrier, rectangular frame and side plates, and said invented improvement lies in that a speed change box which has shifting-fork draw-bar and duplicate gear and can give out two rotating speed outputs is added. It also includes an universal knife roller formed from knife disk welded on the knife roller shaft, on the knife disk a rotary-tilling stubble-breaking universal knife is mounted, knife handle portion has two mounting holes, the knife can be fixed on the knife disk by means of two bolts. It can utilize one machine to implement two works of rotary tillage and breaking stubble.

Description

technical field [0001] The invention belongs to agricultural soil preparation machinery. Background technique [0002] In the current farming method, before a new round of sowing, plowing is carried out, and stubble breaking and rotary tillage are mostly carried out. For these two kinds of tillage operations, there are already stubble breakers and rotary tillers. Both the stubble breaker and the rotary tiller in the prior art include a frame, a reduction gear box, and a knife roller, etc. In the existing stubble breaker, the cutterheads for installing the stubble cutter are four in a group with a spacing of 80mm It is welded on a section of square tube, and then the four sets of cutter heads are passed on the square tube-shaped cutter rollers for positioning and fixing. The working width of the stubble cutter is 80mm. The first problem with this installation method of the cutterhead is that the stubble cutters are arranged in a multi-head helical line on the four cutterhead...

AI Technical Summary

Problems solved by technology

There are only two knives on each rotary surface, and the soil-cutting pitch of the rotary tiller is guaranteed by the number of revolutions. At the same rotational speed of the knife roller, if you want to reduce the soil-cutting pitch, you need to increase the number of knives. However, this In the form of installing rotary tillage knives with knife holders, when the number of knife holders on one rotary surface exceeds two, it will cause soil and grass entanglement, which will have a negative impact on rotary tillage.

The distance between knife seats is relatively narrow, generally 85mm, and the number of knife seats welded on the entire knife roll is relatively large, and the welding process is more complicated

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