DESIGN FOR A DRIVE OF THE INTERAXLE MECHANICAL PRUNER USED IN LOW TRELLISES

A mechanical pruner (similar to a special sprinkler for chemical pruning) serves for pruning new hopvine shoots in spring. On the right timing and quality of pruning depends later yield, which is why pruning is one of the most important agrotechnical operations. Double-disc mechanical pruner used with high trellises cannot be used with the technology of low trellises. Due to the effort to minimize the chemical environmental burden, the special sprinklers for chemical pruning used abroad are considered inappropriate. This was the reason which led to a design for mechanical pruner operating in low trellises. The article describes a hydraulic circuit design and laboratory measurements of an experimental model of mechanical pruner