Soil tillage energy efficiency increase

Abstract

Tillage energy efficiency increase is one of the important tasks in improving the profitability and sustainability of agricultural production. The paper proposes to increase cultivation energy efficiency due to the use of traction-drive tilling implement with active working bodies, not creating a high traction resistance and not requiring a large towing weight of aggregated tractor. The analysis of the energy efficiency of soil cultivation using traction-driven tilling implements with active working bodies has been carried out, and theoretical dependences of the coefficient of efficiency of a traction-driven machine-tractor unit has been obtained. The possibility of increasing the efficiency of the unit by reducing slipping of the tractor wheels and losses on rolling of the unit has been determined, which has been achieved by transferring part of the power through the power take-off shaft (PTO) of tractor to the drive working bodies of tilling implement, which compensate for traction resistance of the implement and create a pushing force, reducing the resistance to rolling.

Optimization of the kinematic mode of operation of the tractor-driven tillage tool

“…A visual analysis of this graphical dependence clearly shows the ranges of the optimal values of the factors. The same ranges are confirmed by solving a system of first-order differential equations for each variable (7).…”

“…The tool (Figure 1) contains driven rotary working bodies -needle discs, which are located in two rows. The rows of working bodies are located perpendicular to the direction of movement of the tool in a checkerboard pattern, and are made in the form of batteries of needle disks with needles of optimal curvature [7].…”

“…Solving the resulting system of equations (7), the optimal values of the factors were found: kinematic parameter of the 1st row of needle disks K1 = 1.08; kinematic parameter of the 2nd row of needle disks K2 = 1.13 at the operating speed of the unit Vp = 9.1 km / h. With the given values of the factors, the specific energy consumption of the EU does not exceed 90 g / (h • %).…”