Arrangement method of rotary tillage stubble smashing blade on knife roller

Abstract

The invention provides a method for the arrangement of rotary tillage stubble-breaking blades in a knife roller, belonging to the agricultural machinery field. The method comprises the following steps that: the knife roller is evenly divided into a left half knife roller and a right half knife roller, and the blades of the left half knife roller and the right half knife roller are arranged along a spiral line respectively; for the spiral lines of the two half knife rollers, the rotary directions are opposite and the rising angels(theta) are the same; starting positions of the spiral lines of the left half knife roller and the right half knife roller are different with theta/2=180 degree/N, and the blades in the same spiral line are the same in direction, and the blades in two adjacent spiral lines of the same half knife roller are opposite in direction, and the number of blades arranged on each spiral line are equal to that of cutter heads of each half knife roller, and N is the total number of blades of the left half knife roller or the right half knife roller. The knife rollers arranged according to the method of the invention can ensure that better working quality and little power consumption are achieved when the machine utilizes the same blade of the same knife roller in the rotary tilling operation as well as the stubble-breaking operation, and the operations are smooth.

Description

technical field [0001] The invention belongs to the category of agricultural machinery, and particularly relates to a method for arranging rotary tillage blades on a cutter roller. Background technique [0002] The rotating blades are reasonably arranged on the cutter shaft (knife roller), which is beneficial to improve the work quality, reduce power consumption, and reduce machine vibration and impact. In 1985, the agricultural machinery workers in our country proposed the optimal sequence (4n±2=total number of knives, n is a natural number) arrangement, which better solves the problem that the rotary tiller blades of the rotary tiller with the knife seat structure are arranged according to the double-headed helix rule. The method is now widely used in rotary tillers. The arrangement of the stubble knives on the stubble cutter roller does not conform to the spiral arrangement. The arrangement on the straw crushing and returning machine mainly considers the problem of dyna...

AI Technical Summary

Problems solved by technology

Most foreign (such as Japan) rotary tillers are arranged in a herringbone shape, which is similar to the arrangement of four helical lines, but the blades do not enter the soil evenly at a certain angle according to the knife roller, and there are a few cases where the knives enter the soil one after another in the same direction.

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