Analysis of design quality of tillage machines for agricultural engineering small-scale mechanization means of 0.2 tractive class

    S.N. Devyanin, DSc in Engineering
    I.I. Sapozhnikov, Engineer
    V.A. Shmonin, DSc in Engineering

    Russian State Agrarian University – Moscow K.A. Timiryazev Agricultural Academy, Moscow, Russia,

Such operational parameters of small-scale mechanization means as grasp width and motion speed of a unit equally affect the machine performance and thereby determine its complex quality. The improvement of machine performance due to the extension of grasp width is reached by the use of three-, five-, six- and eight-furrow ploughs. This direction requires the constant increasing of traction force of power vehicles due to the increasing of engine power and trailing weight, which finally change the operational qualities of machine. Other direction of performance improvement is due to the increasing of operation speed; it is more complicated because when the speed increases, the traction resistance of working organs of tillage machines rises sharply, and the quality indicators of ploughed soil structure worsen. The transition to higher speeds of tillage requires a complex solution of such scientific and technical problem as development, creation and introduction of essentially new tillage machines for small-scale mechanization means. Special attention should be payed to a method for improvement of the engine power use by means of its transferring to working organs of the machine not through a hook but through a power shaft. Soil reaction to the active working organs is directed towards the power vehicle motion, therefore the trailing weight loses its functional necessity. It will allow to reduce the metal consumption of construction of small-scale mechanization means.

small-scale mechanization means; plough; plough surface; grasp width; ploughing depth; probability; statistics; indicators; parameters; mode; methodology; optimization; process; system; regulation; speed; tractive resistance.

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