ASPECTS REGARDING THE WORKING PROCESS OF THE SIMPLE PRESS WHEELS OF THE PLANTERS AND SEEDERS.

This paper presents some aspects regarding construction and working process of the press wheel of agricultural machinery for planting and seeding, particularly with examples at the miscanthus planters. Also, there are presented some theoretical elements concerning the working process of these working bodies of the agricultural machinery, regarding rolling resistance, the level of compaction and to estimate the compaction depth achieved by the press wheel. These parameters express the working indices of press wheels, necessary to achieve a contact between seeds, rhizomes or planting material and the soil around it, in order to obtain a good germination and the formation of roots adequate for sprouting and vegetation. Further, is presented a finite element analysis for press wheel and its support for a stable position during the working process, for a normal push of the wheel on the soil. [ABSTRACT FROM AUTHOR]