Combined straw mulching rotary tillage knife roller

Abstract

The invention discloses a combined straw mulching rotary tillage knife roller. Operating tools of the conventional rotary tiller and a rotary tillage straw mulching machine are reasonably combined to realize a farmland tillage function of the conventional rotary tiller and a high-stubble straw mulching function of the rotary tillage straw mulching machine by virtue of a knife roller, so that the problems of undiversified function, complex structure, high energy consumption, narrow application range and the like of the conventional knife roller are solved. According to the technical scheme, the combined straw mulching rotary tillage knife roller comprises a knife shaft and a plurality of knife roller units arranged on the knife shaft, wherein each knife roller unit comprises a knife plate, spiral cross knives, a rotary blade and curved knives; the knife plates are arranged on the knife shaft; a plurality of curved knives are uniformly distributed on the knife plates; 2 to 3 spiral cross knives are uniformly connected to the curved knives between every two adjacent knife plates; 1 to 3 rotary blades are arranged on the knife shaft between every two adjacent spiral cross knives. The combined straw mulching rotary tillage knife roller is simple in structure, wide in application range, high in operating efficiency and low in energy consumption, and has the farmland tillage and high-stubble straw mulching functions.

Description

technical field [0001] The invention relates to a straw returning machine, in particular to a combined straw returning rotary blade roller. Background technique [0002] Straw burning has been repeatedly banned, seriously endangering all aspects of social life. Straw returning to the field can not only solve the problem of burning, but also reduce the amount of chemical fertilizers, improve soil structure, and increase farmland fertility. At present, most straws are returned to the field by crushing, and the crushing of straws can prevent agricultural machinery from being entangled in grass during subsequent field farming. There are two main methods of straw crushing: first, use a professional straw crushing and returning machine to crush straw. This method has a good crushing effect, but it consumes farming time and increases operating costs; A straw grinder is installed at the grass exit. This method saves farming time and has a good straw crushing effect, but it increase...

AI Technical Summary

Problems solved by technology

Invention patent 200610156300 "A Rotary Tiller for Returning Grass and Straw without Wrapping Grass" Welded more than two grass-blocking horizontal strips on the knife roller shaft of the traditional rotary tiller, which solved the problem of the knife shaft when the rotary tiller works in the field with high stubble straw. Grass entanglement problem, but the straw was not buried in the soil of the plow layer, most of the straw was exposed to the surface, which affected the subsequent sowing and planting links; utility model patent 201235463U.0 "a high-stubble paddy field dual-axis rotary tillage burying grass soil preparation machine "Installing two identical cutter rollers of the rotary tiller and grass burying machine in the same frame of the rotary tiller, the single-roller rotary tillage and grass burying machine can achieve the effect of two operations of the single-roller rotary tillage and grass burying machine. However, the structure of the machine is complex, the power consumption is large, and it is only suitable for paddy field operations, and its versatility is poor; the utility model patent 201210514851 "a dual-purpose straw returning to the field and plowing knife roller" through the reasonable combination of the spiral horizontal knife and the machete, The fields are plowed vertically and horizontally along the forward direction of the unit, and the spiral horizontal knife uses a serrated edge to saw off the straw. This machine has a good effect of returning straw to the field, and has good versatility in paddy fields and dry land, but the structure is complex and the knives are dense. , the soil is blocked during the operation process, the farmland plowing effect is poor, and the standardization degree of the operation tool is low, and the manufacturing cost is high; the utility model patent 201220548794.1 "a double-roller straw returning rotary tiller" rotates the stubble cutter roller and the soil The cultivating knife roller is installed in the frame of the rotary tiller at the same time to realize the compound operation of straw returning to the field and soil rotary tillage. This machine has high operating efficiency and good effect of straw returning to the field, but the weight of the whole machine is heavy, the structure is complicated, and the power consumption is large.

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