Operational parameters and modes of rotary working body for harrowing crops

Abstract

A rotary working body with evenly spaced needles along perimeter is a flat disk (rotating in longitudinal–vertical plane). The technological process of interaction with soil is that when rolling rotary disk in soil layer, needle is introduced into it, crushing and shifting soil in direction of rotation. The degree of soil loosening of freely rotating needle disk on axis in longitudinal–vertical plane depends on several parameters: diameter of a disk, number and shape of needles, speed of progressive motion, soil properties. There was made an analytical research of needle working bodies in terms of influence of sizes of disk and needles on process of their interaction with soil.

Analysis of technological and design schemes of machines for applying liquid complex fertilizers

“…The use of working bodies for the focal application of liquid fertilizers will avoid this disadvantage. Let us further consider the design schemes of machines and working bodies for such an introduction [3,5].…”

Similarity and Differences of Husking and Disking of the Soil. Prospects of Improving Disk Tools

“…In Krasnodar Territory tillage is carried out with various agricultural machines and implements, among which disk rotations can be distinguished as one of the most widely used in all agricultural crop cultivation technologies. According to recommended and promising technologies for the cultivation of basic crops, tillage machines with disk working bodies account for 10-20%, and in some technologies up to 35% of the total volume of technological operations for tillage [3,4,5,6,8,13,17]. Despite the great similarity of technological operations with the use of disk tools, they can have many differences, therefore, the identification of their common features and differences is necessary to determine the prospects for their improvement.…”

Kinematic Analysis of a Disk Working Body with a Changing Radius of Curvature

“…In parallel with the increase in the intensity of the use of disk working bodies, their improvement also occurs [12][13][14]. If at the turn of the XX century they mainly used flat and spherical disks as universal working bodies suitable for any operating conditions, then in recent years the designs of disk working bodies have significantly expanded their nomenclature and narrowed the scope of their purpose [15][16][17][18]. For example, there were coltour disks designed for intensive grinding of crop residues, disk knives or "fleo" disks for working on soils with a large number of crop residues, cone disks, etc.…”