Analysis of Abrasive Wear Resistance of Actuating Devicesof Deep Tillers
Deep tillage is known to be one of the basic types of soil treatment. This operation carries a multifunction setting, and, consequently, actuating devices should correspond to one or another soil preparation (soil loosening, paraploughing, chiseling). Lately, many researchers have paid some special attention on improving service properties of chisels, in particular, on their abrasive wear resistance. Numerous projects of present time are not systematized and not comprehended critically, thus not allowing working out more perfect and reliable constructions. Fourteen chisel constructions known from open sources are analyzed in the paper. It ensues from the conducted analysis, that actuating devices are monofunctional, i.e. each of them can serve for the concrete operation. As a rule, the embodiment of chisels is not aimed at the improvement of wear resistance. The exceptions are the constructions with the reinforced working surface. However, their manufacturing complexity prevents from recommending them to wide introduction. From the point of view of resistance improvement, the most appropriate construction is a chisel with its reinforced top. However, it cannot be considered fully studied in the plan of technological and economic efficiency.