Sugar beet harvester lifter - has two digging tools with crank drive to raise and lower them alternately

摘要

The lifter for a sugar beet harvester consists of two digging tools, with crank drive. A drive wheel moved by a belt drive is fixed on the crankshaft. The drive wheel (11) and the crankshaft (7) are assembled so that they can move relative to each other. The drive wheel (11) is fitted on a part of the crank shaft (7) so that it can move axially with the intermediate connection of friction reducing mechanisms (17). The shaft part has a axial chamber which prevents turning. The drive wheel and the crankshaft have a polygonal guide profile.